Connectivity of Applet with Oracle

I am able to connect an Applet to oracle.It is displayed on the client browser only when there is an .java.policy file in my home directory.I created a .java.policy file on my server home directory.It is not running on the client machine.Please let me know how i can overcome this problem.Going through some of the previous topics in the forum i saw that signing the applet is one of the solution....please let me know how i can sign the applet.....its very urgent.

we're currently looking at building the reports j2ee thin client for ibm websphere - however do not have a scheduled date for this. you can see if the j2ee thin client meets your requirements by looking at the doc for it for the bea client:
http://otn.oracle.com/products/reports/htdocs/getstart/examples/Tools/thinclient/bea/Readme.html
is something like this for websphere what you are looking for?
thanks
paul narth
oracle reports & portal product management

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sho con_name
CON_NAME
CDB$ROOT
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hi all,
here i m running the following code .
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the number in the text filed decides the column number to be displayed.
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t1.setText("0");
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String s1,s2,s;
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at java.awt.Container.update(Container.java:1730)
at sun.awt.RepaintArea.updateComponent(RepaintArea.java:239)
at sun.awt.RepaintArea.paint(RepaintArea.java:216)
at sun.awt.windows.WComponentPeer.handleEvent(WComponentPeer.java:254)
at java.awt.Component.dispatchEventImpl(Component.java:4031)
at java.awt.Container.dispatchEventImpl(Container.java:2024)
at java.awt.Component.dispatchEvent(Component.java:3803)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:234)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
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Mintu,
You said:
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here i m running the following code .
it executes the following query "Select * from emp";
the number in the text area decides the column number to be displayed.
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import java.sql.*;
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Statement stmt=null;
Connection conn = null;
TextField t1;
public void init()
t1 = new TextField(2);
add(t1);
t1.setText("0");
public void paint(Graphics g)
int x=0,y=0,z=0;
String s1,s2,s;
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conn = DriverManager.getConnection
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s2 = (rset.getString(x));
g.drawString(s2,100,100);
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public boolean action(Event event,Object obj)
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at java.awt.Container.update(Container.java:1730)
at sun.awt.RepaintArea.updateComponent(RepaintArea.java:239)
at sun.awt.RepaintArea.paint(RepaintArea.java:216)
at sun.awt.windows.WComponentPeer.handleEvent(WComponentPeer.java:254)
at java.awt.Component.dispatchEventImpl(Component.java:4031)
at java.awt.Container.dispatchEventImpl(Container.java:2024)
at java.awt.Component.dispatchEvent(Component.java:3803)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:234)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
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} catch (SQLException e) {
rst = null;
if (stmt != null) {
try {
stmt.close();
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stmt = null;
if (conn != null) {
try {
conn.close();
} catch (SQLException e) {
conn = null;
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<Context path="/App1" docBase="App1"
debug="5" reloadable="true" crossContext="true">
<Resource name="App1ConnectionPool" auth="Container"
type="oracle.jdbc.pool.OracleDataSource"
driverClassName="oracle.jdbc.OracleDriver"
factory="oracle.jdbc.pool.OracleDataSourceFactory"
url="jdbc:oracle:thin:@127.0.0.1:1521:oddjob"
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MinLimit="5"
MaxLimit="20"
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hello, please pardon me, my english is basic. i do of my best. i had the same problem until reading the pdf documentation 2 days for java devvelloper.it is simple, follow this way.
try {OracleDataSource ds;
Connection conn;
ds = new OracleDataSource();
ds.setURL("jdbc:oracle:thin:@localhost");
conn = ds.getConnection("userid","password");
Statement stmt = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
don't forget to Dowload the user client of oracle Express Edition. do the rest of your program and it will work. take a look to the documentation pdf for java develloper. all it is explained. good look

Connect Toad freeware with Oracle express Edition, How?

Hello,
Although I know that people will raise the question this is Oracle and use SQL developer... Ok I do that and that is working fine. But on my work they work with TOAD so I like to work with TOAD as well and I want get some knowledge about Toad, TNSNAMES etc.
I've put the issue on TOAD forum as well, but till now I don't have received an answer.
I want to teach/learn myself Oracle by working with the Oracle express edition. I have downloaded the SQL Developer and I can work with it, which means I can create a connection.
Errors when I try to work with TOAD are:
If i try to make a connection:
- "No valid clients found. You need at least one 64-bit client properly configured"
If I click on TNSNames editor:
- Access violation in address xxxxxxx at module TOAD.exe"
I have installed oracle at D:\ORACLE_HOME. In this directory is also a TNSNAMES.ORA file.
I have installed the express edition with the installer. I have first installed the Oracle express edition and later TOAD.
I'm working on my local machine with:
- windows 7 Home
- Oracle 32 bit client:
- Oracle Database 11g Express Edition Release 11.2.0.2.0 - Production
- PL/SQL Release 11.2.0.2.0 - Production
- "CORE 11.2.0.2.0 Production"
- TNS for 32-bit Windows: Version 11.2.0.2.0 - Production
- NLSRTL Version 11.2.0.2.0 - Production
- TOAD 64-bit freeware.
*Questions:*
*- Are there certain environment variables necessary? Does TOAD expect Oracle at a certain directory?*
*- Is it necessary to add something to the PATH environment variable?*
*- 32-bit Oracle client will working with the 64-bit TOAD freeware?*
Nico

Nico van de Kamp wrote:
I've put the issue on TOAD forum as well, but till now I don't have received an answer.Yes, correct, visit toadworld.com. This is not the proper forum.
>
Errors when I try to work with TOAD are:What version toad? Is it 11.6 x64?
If i try to make a connection:
- "No valid clients found. You need at least one 64-bit client properly configured"Listen to that message. A 64-bit program requires 64-bit libraries.
I have installed the express edition with the installer. I have first installed the Oracle express edition and later TOAD.
I'm working on my local machine with:
- windows 7 HomeHome editions are not supported, sorry.
- Oracle 32 bit client:What is it - Client or Server?
- Oracle Database 11g Express Edition Release 11.2.0.2.0 - Production>
- TOAD 64-bit freeware.Perhaps easiest way out is to remove 64-bit Toad and install the 32-bit one instead.
>
Questions:
- Are there certain environment variables necessary? Does TOAD expect Oracle at a certain directory?
- Is it necessary to add something to the PATH environment variable?
- 32-bit Oracle client will working with the 64-bit TOAD freeware?
All these should be directed elsewhere, e.g. at some Toad forum, maybe at toadworld.com.

Query to connect Java Applet to Oracle 10g.

I am developing an Applet in Java 1.5.0.7.My database is Oracle 10g.Now when i connect Oracle to Java I get the Error : java.lang.ExceptionInInitializerError
and it does not get connected.Please help me anyone.
Below is the code which i have written.
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.sql.*;
import java.util.ArrayList;
import javax.swing.JApplet;
import javax.swing.JButton;
import javax.swing.JLabel;
public class tt7 extends JApplet
     implements ActionListener, PropertyChangeListener
private int m_uniqueID = 0;
     JLabel m_lblRadius;
     // A button the user can click to display the Add Theme wizard.
     JButton m_btnAddTheme;
     static String m_mapxtremeURL = null;
     // TODO: Specify a map file name such as "uk.mdf" (if the mdf file is in
     // in same directory that the applet was loaded from),
     // or an URL to a map file, such as "http://host.com/maps/uk.mdf".
     // Or, instead of specifying this URL explicitly here, you can specify it
     // in the HTML page that loads the applet (using the 'filetoload' param).
ResultSet rs=null ;
ArrayList arrlist=null;
ArrayList arrlist1=null;
ArrayList arrlist2=null;
//Connection con=null;
Statement st=null;
     public void start()
     } // start method
     public void init()
try{
// System.out.println("helloooooooo");
Class.forName("oracle.jdbc.driver.OracleDriver");
//Class.forName("oracle.jdbc.driver.OracleDriver");
Connection con= DriverManager.getConnection("Jdbc:oracle:thin:@asl005:1521:geo","system","1234567");//"jdbc:oracle:thin:@asl005:1521:geo","system","1234567");
System.out.println("helloooooooo");
System.out.println("CON:"+con.toString());
st = con.createStatement();
System.out.println("St:"+st);
catch(Exception e2){System.out.println("Exception :"+e2);}
catch(ExceptionInInitializerError s)
System.out.println("Exception2 :"+s);
}// If the HTML page specified parameters, use them to
          // override our default values.
          // See if a MapDef file was specified in the HTML file.
     }     // propertyChange method
     // Respond to the user actions, such as clicking
     // the Add Theme button.
public void actionPerformed(ActionEvent e)
// LocalDataProviderRef localDPRef = null;
// a static label displayed in the applet
public void propertyChange(PropertyChangeEvent evt) {
This is the HTML CODE...
<HTML>
<HEAD>
<TITLE>SimpleMap applet demonstration</TITLE>
</HEAD>
<BODY>
<OBJECT classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93"
WIDTH = 600 HEIGHT = 440
codebase="http://java.sun.com/products/plugin/1.3.1/jinstall-131-win32.cab#Version=1,3,1,0">
<PARAM NAME = CODE VALUE = "tt7.class" >
<PARAM NAME=archive VALUE="classes12.jar">
<PARAM NAME="type" VALUE="application/x-java-applet;version=1.5">
<COMMENT>
<EMBED type="application/x-java-applet;version=1.5"
CODE = "tt7.class"
WIDTH = 600 HEIGHT = 440
archive="classes12.jar"
pluginspage="http://java.sun.com/products/plugin/1.3.1/plugin-install.html">
<NOEMBED></COMMENT>
alt="Your browser understands the <APPLET> tag but isn't running the applet, for some reason."
Your browser is completely ignoring the <APPLET> tag!
</NOEMBED></EMBED>
</OBJECT>
</BODY>
</HTML>

My dear colleague, You better consider asking this question in Jdeveloper forum.
I have a simple code for Windows application. You can easily convert it into Applet application..
import java.awt.*;
import java.awt.event.*;
import java.sql.*;
import oracle.jdbc.*;
import oracle.sql.*;
public class QueryFrame extends Frame {
TextField inputText;
public QueryFrame() {
super("Query Interface");
setSize(450, 250);
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
ActionListener printListener = new ActionListener() {
public void actionPerformed(ActionEvent ae) {
ConnectAndRun(inputText.getText());
Panel toolbar = new Panel();
toolbar.setLayout(new FlowLayout(FlowLayout.LEFT));
Button queryButton = new Button("Run Query");
queryButton.addActionListener(printListener);
toolbar.add(queryButton);
inputText = new TextField(14);
toolbar.add(inputText);
// The "preferred" BorderLayout add call
add(toolbar, BorderLayout.NORTH);
public static void main(String args[]) {
QueryFrame tf1 = new QueryFrame();
tf1.setVisible(true);
     public void ConnectAndRun(String s)
          String sqlquery;
          if (s.equals(""))
          sqlquery ="select * from DEPT where LOC is null";
          else
          sqlquery ="select * from DEPT where LOC like '" + s + "'";
          System.out.println(sqlquery);
          try
          DriverManager.registerDriver (new oracle.jdbc.OracleDriver());
     Connection conn = DriverManager.getConnection ("jdbc:oracle:thin:@localhost:1521:HELLO","scott","tiger");
     Statement stmt = conn.createStatement ();
          ResultSet rset = stmt.executeQuery (sqlquery);
          while (rset.next ())
               System.out.println( rset.getInt("DEPTNO"));
               System.out.println( rset.getString("DNAME"));
               System.out.println (rset.getString("LOC"));
          rset.close();
     stmt.close();
          catch (SQLException se)
               System.out.println(se);
Make sure you have appropriate libraries in classpath...

Problems on connecting Developer/2000 with Oracle

1. Can Developer/2000 for window95/NT release 2.0 connect with Personal Oracle8i for Windows 98 under Windows 98 environment?
2. Can Developer/2000 for window95/NT release 2.0 connect with Personal Oracle7.3 for Windows 95 under Windows 98 environment?
3. What is the default database name of Personal Oracle8i for Windows 98?

If you get an error message with a number, did you try looking for this number in the oracle errors book (online on OTN? just click search).
Developer/2000 is quite old, better get the newer versions from otn.oracle.com.

Connectivity of Applet with Oracle

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