Servlet and Lite

Hi,
I've only one problem with servltes and Oracle Lite.
I'd created a jar file, I'd published my application without errors or problem.
After the publication, I connect to my application and I obtain the following error:
java.lang.NullPointerExceptio.
Why?
Have you got any ideas?
Tia,
Simone
O.S.: Win2000 Server sp2
DB version: 8.1.7.0.0
Lite version: 5.0.0.4.0

Hi!
I'm also developing an application with Web-to-Go. In the developer-mode everthing's working okay but after packaging and deploying the web-application I also get a NullpointerException.
Does anybody know a solution to that problem?
regards
Marco

Similar Messages

  • Help needed on Servlets and JSTL

    Hi
    I am using tomcat 5.5 and JDK 1.5. What are the softwares I have to download for compiling servlets and creating JSTL ?. Help needed.
    Thanks
    IndyaRaja

    I tried compling servlet, but it is raising error
    that coul not find package javax.servletWhat I did not mention... you need to add those JARs in the Classpath explicitly. You will find them in %TOMCAT_HOME%\common\lib. You atleast need to add servlet-api.jar to your Classpath. :)

  • Difference between servlet and filter

    difference between servlet and filter

    Its not a secret you know; if you just read a little about what they are used for, you answer your own question plus many more to follow.
    Servlet: http://en.wikipedia.org/wiki/Java_Servlet
    Filter: http://www.oracle.com/technetwork/java/filters-137243.html

  • Difference between servlet and ActionServlet

    Difference between servlet and ActionServlet..
    Anybody reply

    jsf_VWP5.5.1 wrote:
    Difference between servlet and ActionServlet..
    Anybody replyAs their name imply, ActionServlets like outdoor activities, whereas Servlets are rather contemplative types.
    The only time Servlets exhibit behavior similar to ActionServlets, in under extremely stressful situations, like when a Servlet is being chased by a pit bull.

  • How to get the query values from the url in a servlet and pass them to jsp

    ok..this is the situation...
    all applications are routed through a login page...
    so if we have a url like www.abc.com/appA/login?param1=A&param2=B , the query string must be passed onto a servlet(which is invoked before the login page is displayed)..the servlet must process the query string and then should pass all those values(as hidden values) to the login jsp..then user enters username and pswd, then there should be another servlet which takes all the hidden values of jsp and also username and pswd, authenticates the user and sends the control back to that particular application along with the hidden values...
    so i need help on how to parse the query string from the original url in the servlet, pass it out to jsp, and then pass it back to the servlet and back to the original application...damnn...any help would be greatly appreciated...thanks

    ok..this is the situation...Sounds like you have a bad design on your hands.
    You're going to send passwords in a GET request as clear text? Nice security there.
    Why not start with basic security and work your way up?
    %

  • How can I have a default servlet and an index.html?

    Hi,
    I writing a small webapp to test/understand the 2.2 Servlet Spec. I am deploying this as a WAR to Orion, Tomcat and Silverstream.
    The app's name is: "myapp"
    My application has an index.html, which is listed as the sole welcome-file in the welcome-file-list element in the app's web.xml.
    The interesting thing is that, after adding a default Servlet (<url-pattern>/</url-pattern>), I can no longer access the app's index.html either implicitly or explicitly:
    1. Implicit:
    - http://localhost/myapp
    - http://localhost/myapp/
    2. Explicit:
    - http://localhost/myapp/index.html
    - http://localhost/myapp/index.html/
    All of these invoke the Default Servlet in all 3 app servers.
    Question: How can I have both a default Servlet and an index page?
    Thanks in advance.
    Miles

    you can define it in the web.xml file
    look at the dtd, element "welcome-file-list"

  • Using database connection in a servlet and get errors after 8 hours

    Hey,
    I'm running a poker script using applet/servlets and it works great. But for some reason about about 8 hours that database layer stops working. At first I thought it was the connections to mySQL that were timing out (because im using connection pooling) but after turning pooling off (I now create the connection each time) I'm still seeing that same error (I can create a connection but when I do an action ex. like a select statment I get an error). What i'm wondering could it be that the driver I load with Class.forName() some how unloads it's self after x amount of time not being used? Not sure if that is it but if anyone could give me some insight that would be great. The Error i recieve is below:
    INFO: Database Event:DatabaseController: Error executing database query.
    ERROR: Communications link failure due to underlying exception:
    ** BEGIN NESTED EXCEPTION **
    java.net.SocketException
    MESSAGE: Software caused connection abort: recv failed
    STACKTRACE:
    java.net.SocketException: Software caused connection abort: recv failed
         at java.net.SocketInputStream.socketRead0(Native Method)
         at java.net.SocketInputStream.read(Unknown Source)
         at com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:104)
         at com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:144)
         at com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:172)
         at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:1839)
         at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2288)
         at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2784)
         at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1531)
         at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1622)
         at com.mysql.jdbc.Connection.execSQL(Connection.java:2370)
         at com.mysql.jdbc.Connection.execSQL(Connection.java:2297)
         at com.mysql.jdbc.Statement.executeQuery(Statement.java:1183)
         at com.softnet.database.DatabaseController.executeDatabaseQuery(DatabaseController.java:190)
         at com.softnet.games.GameServer.validateUser(GameServer.java:438)
         at com.softnet.games.GameServer.handleData(GameServer.java:113)
         at com.softnet.network.HttpConnectionThread.run(HttpServletListener.java:191)
    ** END NESTED EXCEPTION **
    I know the query is good because it works all other times just not after about 8 hours.
    --Z3r0CooL                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

    Hey,
    Thanks for the responces. For the connection pooling I would open 5 connections and keep them open. So i though maybe after 8 hours after not being used they would timeout. Thats why i turned off conection pooling and create a new connection each time. Anyways i'll post the code below incase i made a mistake somewhere.
    package com.softnet.database;
    /************************ DatabaseControler **************************/
    import java.sql.*;
    import java.util.*;
    import com.softnet.database.DatabaseConnectionPool;
    import com.softnet.database.DatabaseSettings;
    public class DatabaseController
    implements DatabaseListener
         //Used to make sure the database driver is loaded
         private boolean databaseDriverState = false;
         //Used to store a database connection
         private Connection databaseConnection = null;
         //If to user connection pooling or not
         private boolean useConnectionPooling = false;
         //Used to hold the connection pool varible
         private DatabaseConnectionPool connectionPool = null;
         //Used to store database settings
         private DatabaseSettings databaseSettings;
         //Used to hold the DatabaseController listeners
         private List databaseControllerListeners = new ArrayList();
         //min number of connections for connection pool
         private int minNumberOfConnections = 1;
         //max number of connections for connection pool -1 is unlimited
         private int maxNumberOfConnections = -1;
         //DatabaseController Constructors
         public DatabaseController(DatabaseSettings databaseSettings)
              this.databaseSettings = databaseSettings;
              databaseDriverState = loadDatabaseDriver(databaseSettings.getDatabaseDriver());
         public DatabaseController(DatabaseSettings databaseSettings, boolean useConnectionPooling, int minNumberOfConnections, int maxNumberOfConnections)
              this.databaseSettings = databaseSettings;
              this.useConnectionPooling = useConnectionPooling;
              this.minNumberOfConnections = minNumberOfConnections;
              this.maxNumberOfConnections = maxNumberOfConnections;
              if(useConnectionPooling == true)
                   connectionPool = new DatabaseConnectionPool(databaseSettings, minNumberOfConnections, maxNumberOfConnections);
                   connectionPool.addDatabaseListener(this);
              else
                   databaseDriverState = loadDatabaseDriver(databaseSettings.getDatabaseDriver());
         public DatabaseController() {}
         //Database Settings Get/Set
         public DatabaseSettings getDatabaseSettings()
              return databaseSettings;
         public void setDatabaseSettings(DatabaseSettings databaseSettings)
              this.databaseSettings = databaseSettings;
         //Connection Pooling Get/Set
         public boolean getConnectionPooling()
              return useConnectionPooling;
         public void setConnectionPooling(boolean useConnectionPooling, int minNumberOfConnections, int maxNumberOfConnections)
              this.useConnectionPooling = useConnectionPooling;
              this.minNumberOfConnections = minNumberOfConnections;
              this.maxNumberOfConnections = maxNumberOfConnections;
              if(useConnectionPooling == true)
                   if(connectionPool == null)
                        connectionPool = new DatabaseConnectionPool(databaseSettings, minNumberOfConnections, maxNumberOfConnections);
                        connectionPool.addDatabaseListener(this);
              else
                   if(connectionPool != null)
                        connectionPool.destroyConnections();
                        connectionPool.removeDatabaseListener(this);
                        connectionPool = null;
         //Return if there connected
         public boolean isConnected()
              boolean isConnected;
              if(databaseConnection != null)
                   isConnected = true;
              else
                   isConnected = false;
              return isConnected;
         //Used to connect to database or get a connection for the connection pool
         public void connect()
              if(databaseDriverState == false)
                   databaseDriverState = loadDatabaseDriver(databaseSettings.getDatabaseDriver());
              //If we dont have a current connection, make one
              if(databaseConnection == null && databaseDriverState == true)
                   if(useConnectionPooling == false)
                        try
                             databaseConnection = DriverManager.getConnection(databaseSettings.getDatabaseURL(), databaseSettings.getUserName(), databaseSettings.getUserPassword());
                        catch (SQLException sqle)
                             //Raise event
                             raiseDatabaseEvent("DatabaseController: Error connecting to database. \nERROR: " + sqle.getMessage());
                             databaseConnection = null;
                   else
                        databaseConnection = connectionPool.getConnection();
         //Used to disconnect from the database or give back the connection to the connection pool
         public void disconnect()
              if(databaseConnection != null)
                   if(useConnectionPooling == false)
                        try
                             //Close DB Connection
                             databaseConnection.close();
                        catch(SQLException ignore) {}
                        finally
                             databaseConnection = null;
                   else
                        connectionPool.returnConnection(databaseConnection);
                        databaseConnection = null;
         public ResultSet executeDatabaseQuery(String sSQL)
              ResultSet databaseResult = null;
              if(databaseConnection != null)
                   try
                        Statement databaseStatement = databaseConnection.createStatement();
                        databaseResult = databaseStatement.executeQuery(sSQL);
                   catch(SQLException sqle)
                        //Raise event
                        raiseDatabaseEvent("DatabaseController: Error executing database query.\nSQL: " + sSQL + "\nERROR: " + sqle.getMessage());
              return databaseResult;
         public int executeDatabaseUpdate(String sSQL)
              int rowsAffected = -1;
              if(databaseConnection != null)
                   try
                        Statement databaseStatement = databaseConnection.createStatement();
                        rowsAffected = databaseStatement.executeUpdate(sSQL);
                   catch(SQLException sqle)
                        //Raise event
                        raiseDatabaseEvent("DatabaseController: Error executing database update.\nSQL: " + sSQL + "\nERROR: " + sqle.getMessage());
              return rowsAffected;
         //Used to load the Database Driver
         private boolean loadDatabaseDriver(String databaseDriver)
              boolean driverLoaded;
              if(databaseDriver.equals("") == false)
                   try
                        //Load Database Driver
                        Class.forName(databaseDriver).newInstance();
                        driverLoaded = true;
                   catch (Exception e)
                        //Raise event
                        raiseDatabaseEvent("DatabaseController: Error loading database driver. \nERROR: " + e.getMessage());
                        driverLoaded = false;
              else
                   driverLoaded = false;
              return driverLoaded;
         //Wrap the DatabaseConnectionPool Error to the DatabaseController
         public void databaseEventOccurred(DatabaseEvent de)
              raiseDatabaseEvent(de.getErrorMessage());
         //Event Handling Code
         //Used to add database listeners (Its sync'd so you can change the listeners when firing an event)
    public synchronized void addDatabaseListener(DatabaseListener databaseControllerListener)
    databaseControllerListeners.add(databaseControllerListener);
    //Used to remove a listener from the list (Its sync'd so you can change the listeners when firing an event)
    public synchronized void removeDatabaseListener(DatabaseListener databaseControllerListener)
    databaseControllerListeners.remove(databaseControllerListener);
    //Used to send the raise event to the listeners
    private synchronized void raiseDatabaseEvent(String databaseError)
    DatabaseEvent databaseEvent = new DatabaseEvent(this, databaseError);
    Iterator listeners = databaseControllerListeners.iterator();
    while(listeners.hasNext())
         DatabaseListener listener = (DatabaseListener) listeners.next();
    listener.databaseEventOccurred(databaseEvent);
    /********************* DatabaseConnectionPool **************/
    package com.softnet.database;
    import java.io.*;
    import java.sql.*;
    import java.util.*;
    import com.softnet.database.*;
    import com.softnet.database.DatabaseSettings;
    public class DatabaseConnectionPool
         //min number of connections
         private int minNumberOfConnections = 1;
         //max number of connections -1 is unlimited
         private int maxNumberOfConnections = -1;
         //Store the connections
         protected Hashtable databaseConnections = null;
         //Database Info
         protected DatabaseSettings databaseSettings;
         //to hold Driver state
         private boolean databaseDriverState = false;
         //To hold connection checker
         private DatabaseConnectionCheck connectionChecker = null;
         //Used to hold the DatabaseConnectionPool listeners
         private List databaseConnectionPoolListeners = new ArrayList();
         public DatabaseConnectionPool(DatabaseSettings databaseSettings, int minNumberOfConnections, int maxNumberOfConnections)
              this.databaseSettings = databaseSettings;
              this.minNumberOfConnections = minNumberOfConnections;
              this.maxNumberOfConnections = maxNumberOfConnections;
              //Load Driver
              databaseDriverState = loadDatabaseDriver(databaseSettings.getDatabaseDriver());
              //Create connection
              createConnections();
         public DatabaseConnectionPool(int minNumberOfConnections, int maxNumberOfConnections)
              this.minNumberOfConnections = minNumberOfConnections;
              this.maxNumberOfConnections = maxNumberOfConnections;
         //Database Settings Get/Set
         public DatabaseSettings getDatabaseSettings()
              return databaseSettings;
         public void setDatabaseSettings(DatabaseSettings databaseSettings)
              this.databaseSettings = databaseSettings;
         //Driver State Get
         public boolean getDatabaseDriverState()
              return databaseDriverState;
         public void createConnections()
              if(databaseDriverState == false)
                   databaseDriverState = loadDatabaseDriver(databaseSettings.getDatabaseDriver());
              //Create all connections and load the minimum in the Hashtable
              if(databaseConnections == null)
                   if(databaseDriverState == true && minNumberOfConnections != 0)
                        databaseConnections = new Hashtable();
                        for(int i = 0; i < minNumberOfConnections; i++)
                             try
                                  databaseConnections.put(DriverManager.getConnection(databaseSettings.getDatabaseURL(), databaseSettings.getUserName(), databaseSettings.getUserPassword()), Boolean.FALSE);
                             catch(SQLException sqle)
                                  //Problem break loop and destroy any connections
                                  destroyConnections();
                                  //Raise event
                                  raiseDatabaseEvent("DatabaseConnectionPool: Error creating database connections. \nERROR: " + sqle.getMessage());
                                  break;
              //If no connection check exists create one
              if(connectionChecker == null)
                   connectionChecker = new DatabaseConnectionCheck(this);
                   connectionChecker.start();
         public Connection getConnection()
              Connection connection = null;
              boolean errorWithConnection = false;
              Enumeration connections = databaseConnections.keys();
              synchronized (databaseConnections)
                   while(connections.hasMoreElements())
                        errorWithConnection = false;
                        connection = (Connection) connections.nextElement();
                        Boolean state = (Boolean) databaseConnections.get(connection);
                        //If connection is not used, use it.
                        if(state == Boolean.FALSE)
                             try
                                  connection.setAutoCommit(true);
                             catch(SQLException e)
                                  //Problem with connection remove connection and replace it
                                  databaseConnections.remove(connection);
                                  try
                                       connection = DriverManager.getConnection(databaseSettings.getDatabaseURL(), databaseSettings.getUserName(), databaseSettings.getUserPassword());
                                  catch(SQLException sqle)
                                       errorWithConnection = true;
                             if(errorWithConnection == false)
                                  // Update the Hashtable to show this one's taken
                                  databaseConnections.put(connection, Boolean.TRUE);
                                  // Return the connection
                                  return connection;
                   //All connections being used check to max to see if we can make a new one
                   if(maxNumberOfConnections == -1 || maxNumberOfConnections > databaseConnections.size())
                        try
                             connection = DriverManager.getConnection(databaseSettings.getDatabaseURL(), databaseSettings.getUserName(), databaseSettings.getUserPassword());
                        catch(SQLException sqle)
                             errorWithConnection = true;
                        if(errorWithConnection == false)
                             databaseConnections.put(connection, Boolean.TRUE);
                             return connection;
              //If not connections free and max connections reached wait for a free connection
              return getConnection();
         public void returnConnection(Connection connection)
              boolean errorWithConnection = false;
              //Make sure connection still works
              try
                   connection.setAutoCommit(true);
              catch(SQLException e)
                   //Problem with connection remove connection and replace it
                   databaseConnections.remove(connection);
                   try
                        connection = DriverManager.getConnection(databaseSettings.getDatabaseURL(), databaseSettings.getUserName(), databaseSettings.getUserPassword());
                   catch(SQLException sqle)
                        errorWithConnection = true;     
              if(errorWithConnection == false)
                   databaseConnections.put(connection, Boolean.FALSE);
         public void destroyConnections()
              Connection connection = null;
              if(databaseConnections != null)
                   //Close all connections
                   Enumeration connections = databaseConnections.keys();
                   while (connections.hasMoreElements())
                        connection = (Connection) connections.nextElement();
                        try
                             connection.close();
                        catch(SQLException ignore) {}
                   //Free up hashtable
                   databaseConnections = null;
         private boolean loadDatabaseDriver(String databaseDriver)
              boolean driverLoaded;
              if(databaseDriver.equals("") == false)
                   try
                        //Load Database Driver
                        Class.forName(databaseDriver);
                        driverLoaded = true;
                   catch (ClassNotFoundException cnfe)
                        //Raise event
                        raiseDatabaseEvent("DatabaseController: Error loading database driver. \nERROR: " + cnfe.getMessage());
                        driverLoaded = false;
              else
                   driverLoaded = false;
              return driverLoaded;
         //Event Handling Code
         //Used to add database listeners (Its sync'd so you can change the listeners when firing an event)
    public synchronized void addDatabaseListener(DatabaseListener databaseConnectionPoolListener)
    databaseConnectionPoolListeners.add(databaseConnectionPoolListener);
    //Used to remove a listener from the list (Its sync'd so you can change the listeners when firing an event)
    public synchronized void removeDatabaseListener(DatabaseListener databaseConnectionPoolListener)
    databaseConnectionPoolListeners.remove(databaseConnectionPoolListener);
    //Used to send the raise event to the listeners
    private synchronized void raiseDatabaseEvent(String databaseError)
    DatabaseEvent databaseEvent = new DatabaseEvent(this, databaseError);
    Iterator listeners = databaseConnectionPoolListeners.iterator();
    while(listeners.hasNext())
         DatabaseListener listener = (DatabaseListener) listeners.next();
    listener.databaseEventOccurred(databaseEvent);
    class DatabaseConnectionCheck extends Thread
         private DatabaseConnectionPool connectionPool;
         DatabaseConnectionCheck(DatabaseConnectionPool connectionPool)
              this.connectionPool = connectionPool;
         public void run()
              try
                   while(true)
                        //check threads every 30 seconds
                        this.sleep(300000);
                        if(connectionPool.databaseConnections != null)
                             Connection connection = null;
                             Enumeration connections = connectionPool.databaseConnections.keys();
                             synchronized (connectionPool.databaseConnections)
                                  while(connections.hasMoreElements())
                                       connection = (Connection) connections.nextElement();
                                       Boolean state = (Boolean) connectionPool.databaseConnections.get(connection);
                                       //If connection is not used, use it.
                                       if(state == Boolean.FALSE)
                                            try
                                                 connection.setAutoCommit(true);
                                            catch(SQLException e)
                                                 //Problem with connection remove connection and replace it
                                                 connectionPool.databaseConnections.remove(connection);
                                                 try
                                                      connection = DriverManager.getConnection(connectionPool.databaseSettings.getDatabaseURL(), connectionPool.databaseSettings.getUserName(), connectionPool.databaseSettings.getUserPassword());
                                                 catch(SQLException sqle)
                                                      connection = null;
                                                 // Update the Hashtable with new connection if its not null
                                                 if(connection != null)
                                                      connectionPool.databaseConnections.put(connection, Boolean.FALSE);
              catch(InterruptedException ignored) {}     
    Basicly the why it works is the connection pool hold the database connections. When the user needs a connection they use the database controller to request a connection (By create a instance and called the connect() method) and the connection is either created or grabed from the connection pool. After the user is done with the connection they call the disconnect() method which closes the connection or returns it to the connection pool.
    --Z3r0CooL                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 

  • Is there a small and lite portable, around 5 lbs or less, printer for my iPad to take on vacation for photos, more than 1 at a time, and words? I have both HP dj460 and ps 616A but they don't support iPad. Is there a device, work around or ePrinter air pr

    Is there a small and lite (5 lbs or under) portable air printer / ePrinter I can use to print contact sheets of photos and words with my iPads? I already have the HP dj460 and HP ps 616A but they don't support the iPads.

    Helper app -- /print n share
    Print directly to the widest range of network or WiFi printers available in any app. Alternatively print via your computer to ALL printers including USB & Bluetooth printers. View read and display large PDF, Office & iWork files. Easily transfer & store files from the Cloud or your computer.
    https://itunes.apple.com/us/app/print-n-share/id301656026?mt=8
    HP  ePrint Home & Biz
        http://itunes.apple.com/us/app/hp-eprint-home-biz/id299531647?mt=8
    http://h10025.www1.hp.com/ewfrf/wc/searchResults?tmp_product=HP+Photosmart+5515+ e-All-in-One+Printer+-+B111a&product=5063608&tmp_qt=eprint&cc=us&dlc=en&lc=en&su bmit
    Mobile printing.
    This blogger found one solution.
    http://genuinely-original.blogspot.com/search/label/iPad%20Printing
    Make Portable Printing Easier with Print n Share and the Brother RJ-4040
    http://prmac.com/release-id-44494.htm
    Use an airprinter with a power inverter
    http://genuinely-original.blogspot.com/search/label/iPad%20Printing
    see makethisstuffwork post in:
    https://discussions.apple.com/thread/4987217?tstart=0
    Brother PocketJet® 673
    -- Prints on a variety of 8.5" wide thermal media.
    -- Print PDF files from your iPhone and iPad with the PJ-673 Print app
    http://www.brother-usa.com/Mobile/ModelDetail.aspx?ProductID=pj673-k&PG=26#.UeX0 Z18pDDJ
    List of supported AirPrinters.
       http://support.apple.com/kb/HT4356

  • Directory structure for servlets and webservices in one application

    hi,
    Can any one help me for creating servlets and webservices in one
    application and deploying in Jboss 4.2.0.
    I want to know exactly what is the directory structure for creating this
    application and what are the additional .xml files for deploying this application.
    if any one know this answere please tell the answere.

    I figured out a solution - it's a problem of policies. In detail: Server1's codebase entry (file:) refers to the class directory of Server1's project. In the simple case of only Client1, which has no codebase entry, it works fine without a file permission on the side of Server1. In the complex case of Client1+Server2, which has to have a codebase entry (file:) refering to the class directory of the Server2's project on a separate machine, for exactly the same method call from Client1 to Server1 a file permission entry on the side of Server1 is needed for Server1's class directory. But WHY ???
    It seems to be a little confusing with the codebase entries, many of the posts are contrary to others and to my personal experiences. Some comments given by Adrian Colley throw a little light upon some aspects. Is there anybody, who can explain the whole topic, when, why, and which part of RMI application deals with codebase entries, also in case of not dynamic code downloading ? May be there is also a reference into the java docs, which I didn't found up to now.
    Thanks in advance
    Axel

  • Servlets and JSPs stored within Oracle 8i

    Folks,
    Does anyone know when Oracle will release support to servlets
    and Java Server Pages in Oracle8i for Linux? Everything in the
    database, including my HTML pages!!
    Best Regards,
    Luis Claudio R. da Silveira
    TRE/GO
    null

    Alright well looks like I'm stuck now.
    This seems more like a PL\SQL question though. If I want to return 2 or more values do I use function or a procedure? here's the code I made:
    CREATE OR REPLACE FUNCTION sign_in(username VARCHAR(20), userpassword VARCHAR(20))
    RETURN NUMBER IS id_num NUMBER, user_type VARCHAR(1);
    BEGIN
    SELECT * INTO id_num, user_type
    FROM ID_MASTER idm, PERSON prs
    WHERE USERNAME = username
    AND USER_PASSWORD = userpassword
    AND idm.ID_NUM = prs.ID_NUM;
    RETURN id_num, user_type;
    END;
    now according to Oracle this is an invalid function. But the error message doesn't say much. Basically I want to pass 2 parameters to use for a query and return 2 variables from the result of the query. Am I suppose to use a procedure?
    If I pass paramters do which string do I use to prepareCall: "{ ? = CALL sign_in (?, ?) }" or do I use the "{ CALL sign_in (?, ?) }"
    But my problem right now is how to make the proper stored procedure. I'd be very much obliged to anyone who can give a sample. Thank you all for your time!

  • I want to send a response from the servlet and then call another servlet.

    Hi,
    I want to send a response from the servlet and then call another servlet. can this happen. Here is my scenario.
    1. Capture all the information from a form including an Email address and submit it to a servlet.
    2. Now send a message to the browser that the request will be processed and mailed.
    3. Now execute the request and give a mail to the mentioned Email.
    Can this be done in any way even by calling another servlet from within a servlet or any other way.
    Can any one Please help me out.
    Thanks,
    Ramesh

    Maybe that will help you (This is registration sample):
    1.You have Registration.html;
    2.You have Registration servlet;
    3.You have CheckUser servlet;
    4.And last you have Dispatcher between all.
    See the code:
    Registration.html
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    <HTML>
      <HEAD>
        <TITLE>Hello registration</TITLE>
      </HEAD>
      <BODY>
      <H1>Entry</H1>
    <FORM ACTION="helloservlet" METHOD="POST">
    <LEFT>
    User: <INPUT TYPE="TEXT" NAME="login" SIZE=10><BR>
    Password: <INPUT TYPE="PASSWORD" NAME="password" SIZE=10><BR>
    <P>
    <TABLE CELLSPACING=1>
    <TR>
    <TH><SMALL>
    <INPUT TYPE="SUBMIT" NAME="logon" VALUE="Entry">
    </SMALL>
    <TH><SMALL>
    <INPUT TYPE="SUBMIT" NAME="registration" VALUE="Registration">
    </SMALL>
    </TABLE>
    </LEFT>
    </FORM>
    <BR>
      </BODY>
    </HTML>
    Dispatcher.java
    package mybeans;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    import javax.servlet.ServletException;
    import java.io.IOException;
    import javax.servlet.RequestDispatcher;
    import java.io.*;
    import javax.servlet.*;
    import javax.servlet.http.*;
    public class Dispatcher extends HttpServlet {
        protected void forward(String address, HttpServletRequest request,
                               HttpServletResponse response)
                               throws ServletException, IOException {
                                   RequestDispatcher dispatcher = getServletContext().
                                   getRequestDispatcher(address);
                                   dispatcher.forward(request, response);
    Registration.java
    package mybeans;
    import java.io.*;
    import javax.servlet.*;
    import javax.servlet.http.*;
    public class Registration extends Dispatcher {
        public String getServletInfo() {
            return "Registration servlet";
        public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
            ServletContext ctx = getServletContext();
            if(request.getParameter("logon") != null) {          
                this.forward("/CheckUser", request, response);
            else if (request.getParameter("registration") != null)  {         
                this.forward("/registration.html", request, response);
    CheckUser.java
    package mybeans;
    import java.io.*;
    import javax.servlet.*;
    import javax.servlet.http.*;
    import java.sql.*;
    public class CheckUser extends Dispatcher {
        Connection conn;
        Statement stat;
        ResultSet rs;
          String cur_UserName;
        public static String cur_UserSurname;;
        String cur_UserOtchestvo;
        public String getServletInfo() {
            return "Registration servlet";
        public void service(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
            try{
                ServletContext ctx = getServletContext();
                Class.forName("oracle.jdbc.driver.OracleDriver");
                conn = DriverManager.getConnection("jdbc:oracle:oci:@eugenz","SYSTEM", "manager");
                stat = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
               String queryDB = "SELECT ID, Login, Password FROM TLogon WHERE Login = ? AND Password = ?";
                PreparedStatement ps = conn.prepareStatement(queryDB); 
               User user = new User();
            user.setLogin(request.getParameter("login"));
            String cur_Login = user.getLogin();
            ps.setString(1, cur_Login);
            user.setPassword(request.getParameter("password"));
            String cur_Password = user.getPassword();
            ps.setString(2, cur_Password);
         Password = admin");
            rs = ps.executeQuery();
                 String sn = "Zatoka";
            String n = "Eugen";
            String queryPeople = "SELECT ID, Surname FROM People WHERE ID = ?";
           PreparedStatement psPeople = conn.prepareStatement(queryPeople);
                      if(rs.next()) {
                int logonID = rs.getInt("ID");
                psPeople.setInt(1, logonID);
                rs = psPeople.executeQuery();
                rs.next();
                       user.setSurname(rs.getString("Surname"));
              FROM TLogon, People WHERE TLogon.ID = People.ID";
                       ctx.setAttribute("user", user);
                this.forward("/successLogin.jsp", request, response);
            this.forward("/registration.html", request, response);
            catch(Exception exception) {
    }CheckUser.java maybe incorrect, but it's not serious, because see the principe (conception).
    Main is Dispatcher.java. This class is dispatcher between all servlets.

  • Reading a properties file in a servlet and passing its contents to a JSP pa

    Hi all,
    I'm totally new to Servlet pgmg n JSP. Please can ne1 tell how to read a simple properties file (in a servlet) and pass its contents to a JSP page.Actually the reason is to fill a combo box in a JSP page with the contents of a properties file.If calling a servlet for the same is d best way to do that, plz can ne1 tell me :
    1> whether to override the doPost method in the servlet in which to read d file using FileInputStream
    2> Putting the contents in an array and then how to pass this array to the JSP page.
    Thanks,
    deepthy.

    I'm using a properties file to let my web application know what the name of the database is. I'm using an abstract class GeneralDao which will be extended by all the DAO's (Data Access Objects or java classes containing SQL statements).
    Here's the code :
    protected Connection getDatabaseConnection()
              throws Melding
         Connection dbconn = null;     
         ResourceBundle resBundle;
         try
         Class.forName("com.mysql.jdbc.Driver").newInstance();
         resBundle = ResourceBundle.getBundle("gcoConfig");
         String dbConnectie = resBundle.getString("databaseconnection");
         gcoLogger.debug("lezen databaseconnection in resourceBundle " );
         dbconn = DriverManager.getConnection(dbConnectie);
         } catch (InstantiationException exc)The ResourceBundle is used to read the properties file, named gcoConfig.properties.
    With the getString() command I read the content of the string named databaseconnection.
    The gcoConfig.properties file is placed inside the folder C:\Program Files\Apache Software Foundation\Tomcat 5.0\webapps\gco\WEB-INF\classes
    The GeneralDao is placed in the folder C:\Program Files\Apache Software Foundation\Tomcat 5.0\webapps\gco\WEB-INF\classes\org\gertcuppens\cluifDao.
    So this class is placed some folder below the WEB-INF\classes folder of gcoConfig.properties.
    And the content of the properties file is just one line :
    databaseconnection=jdbc:mysql://localhost/cluif
    If you want to let the JSP know what's inside the properties file, wrap the content in a Javabean, put it in the request or even the session and pass the control to the JSP.

  • Help With Integrating Servlet and JSP Page?

    Hello There
    --i made jsp page that contain name and description fields and add button
    --and i made servlet that contain the code to insert name and description in the database
    --and i want to make that when the user hit the add button
    -->the entered name and description is sent to the servlet
    and the servlet sent them to database?
    here's what i 've done:
    the jsp code:
    <html:html locale="true">
        <head>
            <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
            <title>
            Categories Page
           </title>
            <html:base/>
        </head>
        <body style="background-color: white">
        <form action="jpage.jsp" method="get">
            <h1>
                <center>
    categories Operations
                </center>
            </h1>
            <h3>
                 <label>Name</label>
            <input type="text" name="name" value="" size="10" />
                 <label>Description</label>
             <input type="text" name="description" value="" size="10" />
             <input type="submit" value="Add" name="button" />
           </h3>
       </form>
        </body>
    </html:html>the servlet code:
    import java.io.*;
    import java.util.Enumeration;
    import javax.servlet.*;
    import javax.servlet.http.*;
    import java.sql.*;
    import java.net.*;
    class NewServlet1 extends HttpServlet{
         Connection conn;
         private ServletConfig config;
    public void init(ServletConfig config)
      throws ServletException{
         this.config=config;
    public void service (HttpServletRequest req, HttpServletResponse res)
    throws ServletException, IOException {
       HttpSession session = req.getSession(true);
       res.setContentType("text/html");
    try{
         Class.forName("com.mysql.jdbc.Driver");
       conn = DriverManager.getConnection("jdbc:mysql://localhost/struts", "root", "");
         PreparedStatement ps;
       ps = conn.prepareStatement ("INSERT INTO categories (Name, Description) VALUES(?,?)");
          ps.setString (1, "aa");
          ps.setString (3, "bb");
          ps.executeUpdate();
          ps.close();
          conn.close();
      }catch(Exception e){ e.getMessage();}
      public void destroy(){}
    }

    The JSP Code:
    <html:html locale="true">
        <head>
            <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
            <title>
            Categories Page
           </title>
            <html:base/>
        </head>
        <body style="background-color: white">
        <form action="actionServlet.do?action=Additem" method="*post*">
            <h1>
                <center>
    categories Operations
                </center>
            </h1>
            <h3>
                 <label>Name</label>
            <input type="text" name="name" value="" size="10" />
                 <label>Description</label>
             <input type="text" name="description" value="" size="10" />
             <input type="button" value="Submit">
           </h3>
       </form>
        </body>
    </html:html>The Servlet Code:
    import java.io.*;
    import java.util.Enumeration;
    import javax.servlet.*;
    import javax.servlet.http.*;
    import java.sql.*;
    import java.net.*;
    public class NewServlet1 extends HttpServlet implements SingleThreadModel {
        public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException,IOException {
            doPost(request,response);
        public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException,IOException {
              String action = request.getParameter("action"); // action = "Additem"
              if (action.equals("Additem")) {
                   String name = request.getParameter("name");
                   String description = request.getParameter("description");
                         RequestDispatcher reqDisp = null;
                   try{
                  Connection conn;
                  PreparedStatement ps;
         Class.forName("com.mysql.jdbc.Driver");
       conn = DriverManager.getConnection("jdbc:mysql://localhost/struts", "root", "");
       ps = conn.prepareStatement ("INSERT INTO categories (Name, Description) VALUES(?,?)");
          ps.setString (1, name);
          ps.setString (3, description);
          ps.executeUpdate();
          ps.close();
          conn.close();
          reqDisp= request.getRequestDispatcher("./index.jsp");
          reqDisp.forward(request, response);
                   catch (Exception ex){
                        System.out.println("Error: "+ ex);
    }The web.xml code:
    <?xml version="1.0" encoding="UTF-8"?>
    <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
        <servlet>
            <servlet-name>action</servlet-name>
            <servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
            <init-param>
                <param-name>config</param-name>
                <param-value>/WEB-INF/struts-config.xml</param-value>
            </init-param>
            <init-param>
                <param-name>debug</param-name>
                <param-value>2</param-value>
            </init-param>
            <init-param>
                <param-name>detail</param-name>
                <param-value>2</param-value>
            </init-param>
            <load-on-startup>2</load-on-startup>
            </servlet>
        <servlet>
            <servlet-name>NewServlet1</servlet-name>
            <servlet-class>NewServlet1</servlet-class>
        </servlet>
        <servlet-mapping>
            <servlet-name>action</servlet-name>
            <url-pattern>*.do</url-pattern>
        </servlet-mapping>
        <servlet-mapping>
            <servlet-name>NewServlet1</servlet-name>
            <url-pattern>/NewServlet1</url-pattern>
        </servlet-mapping>
        <session-config>
            <session-timeout>
                30
            </session-timeout>
        </session-config>
        <welcome-file-list>
            <welcome-file>index.jsp</welcome-file>
            </welcome-file-list>
            <servlet>
         <servlet-name>actionServlet</servlet-name>
         <servlet-class>com.test.servlet.NewServlet1</servlet-class>
    </servlet>
    <servlet-mapping>
         <servlet-name>actionServlet</servlet-name>
         <url-pattern>*.do</url-pattern>
    </servlet-mapping>
        </web-app>

  • How to include a jsp file in servlets and javabeans

    Hi to all..I have a jsp file which contains some database connections and I would like to include in that file in my servlets and javabeans.What coding can i use?Can show me sample coding.

    Hi to all..I have created a javabean storing the
    database connections. How do i include and call that
    bean in my servlet and javabeans?Can pls show me some
    sample coding?I am new to servlets and beans.The same way you do with normal Java Classes. If you are new to Java, I suggest you go to http://java.sun.com/docs/books/tutorial/index.html and look through the first couple of tutorials.
    As a note, it is best to put all your objects into packages, especially if you use JDK 1.4 or higher.

  • Creating FOrums with Servlet and JSP

    Hi everyone,
    Is there a good resource that explains how to build a forum using servlets and JSP technology?
    Regards,
    Basil Mahdi

    please let me know here if you find any useful resources...I am in the process of writing my own searchable threaded forum for my company with JSP's/servlets. It's a very slow process at the moment though...if I ever finish it, I'll gladly share it.

Maybe you are looking for