JSP codes for running a JAVA program

hello...
does anyone know the JSP codes for running a Java program from my web page?? i mean i already have my java program compiled... and i just want this java program to run in the background when I click on a button or a link...
Any idea about this?
plz advice..
avi

yes... u r somewhat right... but this runs on Jakarta Tomcat...
i'm using the Apache Http Server together with the ServletExec AS which enable the Apache server to run JSP..
I've created a package where i've put my classes...
WEB-INF/classes/tbd(package name)/my classes
and i've added.. package name.. in my java program..
and then in jsp... i've written..
<%@ page import="tdb.*"%>
<jsp:useBean id="exec" class="tdb.textdb" />
<%exec.convert_data();%>
but when i run the page it says the package does not exist...
can anyone tell where to place the folder WEB-INF so that it can run fine?
thx
avi

Similar Messages

  • Panel for running a java program

    Hi,
    can any body guide me how can i create a JPanel for running another java class with main method. just like an IDE.
    Thanks
    paruchuri

    Hi,
    the following works. I don't know if it is an elegant way. I don't use it to start other Java-apps only for starting external Browsers and so on....
    Process p;
    try  {
       p = Runtime.getRuntime().exec("javaw yourApp.java");
    }  catch (Exception e)  {

  • Machine environment for running a java program

    Hi,
    I am thinking about writing a client-server application. The communication between the server and the client and vice versa will be in RMI. My question is regarding the client machine environment - do I need to install JDK on the client machine in order to run the client? Can the client run on any environment?
    Thanks

    Hi,
    I am thinking about writing a client-server
    application. The communication between the server and
    the client and vice versa will be in RMI. My question
    is regarding the client machine environment - do I
    need to install JDK on the client machine in order to
    run the client? Can the client run on any environment?
    ThanksHow do java programs run?
    Compiled Java programs are stored in files as bytecode. As a Java program is running, the Java Virtual Machine (JVM), which is a piece of software, converts the bytecode into machine executable code for the particular platform on which the program is running. This code is what is executed by the processor. Bytecode is not specific to a particular platform, but the machine code generated by the JVM is.
    [url http://www.webopedia.com/TERM/J/JVM.html] definition of JVM as per webopedia[ [/url]
    Hopefully now you have an answer to your question.

  • To write a perl script for running a java program from cgi of web server

    I have to write a perl script to call a java program(.exe).I want to run this file through the cgi of the web server.
    java myprogram
    can anyone help me to write a perl script??

    It depends on what the java program does. For example, does it parse HTTP headers from standard input, or what?
    Are you sure it wouldn't be easier to turn the class into a servlet? etc.
    Take a look at IPC::Open2 and IPC::Open3 though. You may need them. (That's just a guess.)

  • Exception while Running a Java Program for UME.

    Hi Experts,
                           I am trying to run a java program to acess UME. Its a sample to create user but all of my samples are throwing this exception in NWDS  (Console).Can anyone tell me why is it throwing this exception .
    com.sap.security.api.UMRuntimeException: UME factory 'com.sap.security.api.IUserFactory' cannot be accessed because UME initialization has not started yet.
    Please check
            UMFactory.isInitialized() before using UME functionality.
        at com.sap.security.api.UMFactory.checkInitialized(UMFactory.java:1019)
        at com.sap.security.api.UMFactory.getUserFactory(UMFactory.java:801)
        at Search.main(Search.java:25)
    Exception in thread "main"
    Thanks in advance
    Somil

    Hi,
    Earlier i faced the same exception when i tried to call the UME form Standalone java application,To resolve this i used stateless session bean approach. i follow the Below Mentioned Steps,
    1:-- create an J2EE -- EJB module project.
    2:-- Create stateless session bean and define the require methods ,implement Local and remote interface methods  in your bean class.
    3:-- refer the UME apis in EJB Projects build path.
    4:-- Call UME in Bean class methods.Build the EJB project and Archive.
    5:--Now create an Enterprise application Project ,Include the EJB module project to your EA Project by right clicking on EA project.Build EA project and EAR file
    6:--Deploy the EAR file on your server.
    7:--Now from your standalone java application include these two projects in Project tab of your Application.
    8:--Lookup the stateless session bean in your java class by its default JNDI name ,Obtain remote or local Home interface,And execute the BEAN Method which deals with UME.
    You can also refer this tutorial in some parts of it UME apis(like IUser,UMFactory) are used in Servelets and EJB ,You can download this tutorial source from SDN for your reference.
    https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/297f35cf-0201-0010-00b2-fe2f3e23d360
    Siddharth

  • Running a java program with eclipse

    Hi,
    I'm trying to run this java program(below) in eclipse..when i go to the 'run' icon inorder to choose the option 'run as' then 'java application' , i have 'none applicable' as the only option available. is it possibly because the program uses threads?
    could someone using eclipse please try to execute this program and let me know if you succeed and how exactly you do it.
    package reseaux;
    import java.io.*;
    import java.net.*;
    import java.util.*;
         public class LeServeur extends Thread{
         Socket socket;
         BufferedReader in;
         PrintWriter out;
         Vector FlowList=new Vector(10);
         public LeServeur(Socket socket)throws IOException{
              this.socket=socket;
              in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
              out= new PrintWriter(new OutputStreamWriter(socket.getOutputStream()));
         public void run(){
              String s;
              synchronized(FlowList){
                   FlowList.addElement(this);
              try{
                   while(!(s = in.readLine()).equalsIgnoreCase("/quit")){
                        for(int i=0;i<FlowList.size();i++){
                             synchronized(FlowList){
                                  LeServeur monServeur=(LeServeur)FlowList.elementAt(i);
                                  monServeur.out.println(s + "\r");
                                  monServeur.out.flush();
              catch(IOException e){
                   e.printStackTrace();
         finally {
         try {
              in.close();
              out.close();
              socket.close();
         } catch(IOException ioe) {
         } finally {
              synchronized(FlowList) {
              FlowList.removeElement(this);
    thanks

    thanks...
    Infact, i wanted to run the main program called 'Serveur' but it uses 'LeServeur'( the code i sent before') and apparently it gives me an error msg that it doesnot recognise the 'LeServeur'...that's why i was thinking that i should probably first compile the 'LeServeur' so that it can be recognised in the 'Serveur' program.
    here is the 'Serveur' code that uses an instantiation of the LeServeur...
    package reseaux;
    import java.net.*;
    import java.io.*;
    public class Serveur {
              public int port;
              public ServerSocket skt;
              public Socket socket;
         public static void main(String[] args) {
              int port=8975;
              ServerSocket skt=null;
              Socket socket=null;
              try{
                   if(args.length>0)
                        port=Integer.parseInt(args[0]);
              catch(NumberFormatException n){
                   System.out.println("This port is used uniquely for listening");
                   System.exit(0);
              try{
                   skt= new ServerSocket(port);
              while (true){
                   socket =skt.accept();
                   LeServeur flow=new LeServeur();
                   flow.start();
         catch(IOException e){
              e.printStackTrace();
         finally{
              try{
                   skt.close();
              catch(IOException e){
                   e.printStackTrace();
    do you know have any idea why it doesnt recognise the 'LeServeur'?
    ps:they're in the same package
    thanks

  • This is my Jsp code for image upload in database:

    This is my Jsp code for image upload in database:
    -----------Upload.jsp----------------
    <html>
    <head>
    </head>
    <body bgproperties="fixed" bgcolor="#CCFFFF">
    <form method="POST" action="UploadPicture.jsp" enctype="multiform/form-data">
    <%! int update=0; %>
    <%@ page import="java.util.*" %>
    <%@ page import="java.sql.*" %>
    <%@ page import="java.text.*" %>
    <%@ page import="java.sql.Date" %>
    <%@ page import="java.io.*"%>
    <%@ page language = "java" %>
    <%
    try
    String ct="3";
    String path;
    File image=new File(request.getParameter("upload"));
    path=request.getParameter("upload");
    Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
    Connection con = DriverManager.getConnection("jdbc:odbc:itPlusElectronics","","");
    PreparedStatement pstmt=con.prepareStatement("insert into graphics values(?,?,?)");
    pstmt.setString(2,path);
    pstmt.setString(3,ct);
    InputStream is=new FileInputStream(path);
    pstmt.setBinaryStream(1, is, (int)(image.length()));
    int s=pstmt.executeUpdate();
    if(s>0)
    out.println("Uploaded");
    else
    %>
    unsucessfull
    <%}
    is.close();
    pstmt.close();
    catch(Exception e)
    }%>
    </p>
    <p><br>
    <img src="UploadedPicture.jsp">image</img>
    <p></p>
    </form>
    </body>
    </html>
    My database name is itPlusElectronics and the table name is "graphics".
    I have seen as a result of the above code that the image is stored in database as "Long binary data". and database table is look like as follows-------
    picture path id
    Long binary data D:\AMRIT\1-1-Picture.jpg 3
    To retrive and display i use this JSP code as--
    ------------------------UploadedPicture.jsp------------------------------
    <html>
    <head>
    </head>
    <body bgproperties="fixed" bgcolor="#CCFFFF">
    <%! int update=0; %>
    <%@ page import="java.util.*" %>
    <%@ page import="java.sql.*" %>
    <%@ page import="java.text.*" %>
    <%@ page import="java.io.*"%>
    <%@ page language = "java" %>
    <%@page import="javax.servlet.ServletOutputStream"%>
    <%
    try
    String path;
    path=request.getParameter("upload1");
    Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
    Connection con = DriverManager.getConnection("jdbc:odbc:itPlusElectronics","","");
    PreparedStatement pst = con.prepareStatement("SELECT * FROM graphics WHERE id ='3'");
    // pst.setString(3, id);
    ResultSet rs = pst.executeQuery();
    path=rs.getString("path");
    if(rs.next()) {
    byte[] bytearray = new byte[4096];
    int size=0;
    InputStream sImage;
    sImage = rs.getBinaryStream(1);
    response.reset();
    response.setContentType("image/jpeg");
    response.addHeader("Content-Disposition","filename=path");
    while((size=sImage.read(bytearray))!= -1 )
    response.getOutputStream().write(bytearray,0,size) ;
    response.flushBuffer();
    sImage.close();
    rs.close();
    catch(Exception e)
    %>
    </body>
    </html>
    Now after browsing a jpg image file from client side and pressing submit button ;
    I am unable display the image in the Upload.jsp file.Though I use
    <img src="UploadedPicture.jsp">image</img> HTML code in Upload.jsp
    file .
    Now I am unable to find out the mistakes which is needed for displaying the picture in the Upload.jsp page..
    If any one can help with the proper jsp code to retrive and display the image ,please please help me !!!!!!!!!!!!!!!!!!!!!!!!!!

    dketcham wrote:
    cotton.m wrote:
    >
    2) I'm looking at how you called stuff, and you're trying to call the jsp file as an image? That jsp isn't the source of the image, just a page linking to an image. I think if you really want to do things that way you're going to need to just include that jsp within the jsp you're calling it from (or you can do it the easy way, and if you have the information to get the path of the image you want, you could simply call the image from the first jsp you posted)This is incorrect.
    There are two JSPs. The second when called will (if it worked) return the source of an image as stored in the database.even when called with <img src=xx.jsp>??
    Yes.
    If any of what I say next seems obvious or otherwise negative I apologize, just trying to explain and I don't know what you know vs what you don't.
    The link in the src is just a URL not a filetype. So just because it ends with JSP does not mean it has to return HTML. The content type is determined by the browser using the Content-Type header returned by the server in the HTTP response. In this case the header is set to be a jpeg so that's what the browser will attempt to interpret the content part of the response as.
    So in fact one is not limited to just HTML or images but whatever content type you would like to return (that the browser can understand anyway). This could be HTML or it could be an image of some type or it could be a PDF or it could be an Excel spreadsheet. All you have to do in the JSP is set the header appropriately and then send content that is actually in that format.
    This does not just apply to JSP by the way but all other web programming languages. You can do similar things to produce the same results in PHP, Perl, ASP etc.
    The only JSP/Servlet complication is whether or not doing this in a JSP is a "good" idea but I am not an expert enough at that to make a definitive statement. Mostly though JDBC in a JSP is a no-no.

  • Error while running a Java Program

    Can anyone help me,
    I am getting the following error while running a Java program, Below is the exception thrown, please help.
    java.nio.BufferOverflowException
    at java.nio.Buffer.nextPutIndex(Buffer.java:425)
    at java.nio.DirectByteBuffer.putChar(DirectByteBuffer.java:463)
    at org.jetel.data.StringDataField.serialize(StringDataField.java:295)
    at org.jetel.data.DataRecord.serialize(DataRecord.java:283)
    at org.jetel.graph.DirectEdge.writeRecord(DirectEdge.java:216)
    at org.jetel.graph.Edge.writeRecord(Edge.java:288)
    at com.tcs.re.component.RESummer1.run(RESummer1.java:505)
    java.nio.BufferOverflowException
    at java.nio.Buffer.nextPutIndex(Buffer.java:425)
    at java.nio.DirectByteBuffer.putChar(DirectByteBuffer.java:463)
    at org.jetel.data.StringDataField.serialize(StringDataField.java:295)
    at org.jetel.data.DataRecord.serialize(DataRecord.java:283)
    at org.jetel.graph.DirectEdge.writeRecord(DirectEdge.java:216)
    at org.jetel.graph.Edge.writeRecord(Edge.java:288)
    at com.tcs.re.component.RECollectCont.run(RECollectCont.java:304)

    Ok, let's see. Write the following class:
    public class Grunt {
      public static void main(String[] args) {
        System.out.println("Hello Mars");
    }Save it as "C:\Grunt.java", compile by typing:
    javac c:\Grunt.javaRun by typing:
    java -classpath "C:\" GruntDoes it say "Hello Mars"? If yes, go back to your program and compare for differences (maybe you used the "package" statement?).
    Regards

  • Running a java program a set number of times

    This is a general question. Is it possible to make a java program run only 5 times for the sake of arguement.
    Basically I want to write a program that will give the user some flexibility when it will actually run another Java program, but I only want them to be able to say "not now' for a set number of times. When the last time comes the other program will launch. I was initially thinking of the Do Whilw loop, but this needs to work when the program is restarted.
    Program starts, it has 5 times it will run before it does something else(doesn't really matter now I think). User takes option "Not Now" and the program ends, but warns the user this will run 4 more times before you will need to do something.
    This process will repeat until the user takes the option "Ok install now" or the time limit expires and the install occurs anyway. Can someone point me in the right direction.

    ok I see so it's like one those programs that you download for free on the internet and they give you a set amount times to use it before you have to pay for it. but in this case when the number of times you use it equals 5 (or when the user clicks ok) a different java app will open automatically.
    My first thought would be to Write a Serialized object to disk using objectOutputStream that stores the number of times the application has been opened. and each time the program runs it checks for the serialized object and then you can do something like what I posted before. of course if were worried about security the user could always look for the object and erase it, if so then I guess we would have to come up with another plan of attack
    Hope this helps

  • Running a java program via a batch file

    I am unable to run a java program from a batch file that I created.
    spiderpackage.EntryPoint is a class file which I am trying to run with a -v option to output something.What should I do to get the output?
    echo ^<html^>^<body^>
    echo hello^<br^>
    call java spiderpackage.EntryPoint -v
    echo ^</body^>^</html^>

    This has nothing to do with java programming. Have a look at the windows help for the call command.
    The echo <html> stuff doesn't make sense. What's it for?
    The command in you batch file should be:
    java -cp . spiderpackage.EntryPoint -v
    assuming that java is in the system path, and the EntryPoint.class is in a directory called spiderpackage which is a subdirectory of your current working directory

  • Running a Java program at startup in Linux

    Hello
    How do I run a Java program at startup in Linux? I know in Windows I can put a .bat file in C:\Windows\Start Menu\Programs\StartUp\ directory, but in Linux I have no idea how it is done.
    Thank you,
    Mihai

    This is really a Linux question, not Java.
    And then it depends on the version of Linux you are using.
    Maybe this will help, otherwise you should try on a forum for your version of Linux.

  • Not able to run a java program on Sun Solaris

    Hi All,
    I am getting following error while running a java program. Can you help.
    Thanks,
    --Srini
    Error:
    Exception in thread "main" java.lang.NoClassDefFound

    Hi Sergi,
    Thanks for the info. I couldn't able to login because of my internet connection.
    Thanks,
    --Srini                                                                                                                                                                                                                           

  • How to set path to run a Java program?

    my pc os is win2000 service pack 3.
    cpu is celoron 667mhz
    256 pc133 sdram
    i have done the setting b4 run a java program but no any effect.
    setting as below:
    set path=c:\j2sdk1.4.1_01\bin
    set classpath=c:\j2sdk1.4.1_01\lib
    my java file is store in C:\Java, file name is HelloWorld.java, so when i type:
    C:\>
    C:\>Java\javac HelloWorld.java
    (the screen show me : java\javac not internal or external........")
    and i try again as follow:
    C:>
    C:>\Java>javac HelloWorld.java
    (the screen show : Exception in thread "main" java.lang.NoClassDefFoundError:HelloWorld/java)
    i cant do anymore, who can help me?

    you need to put the CLASSPATH to dir: c:\j2sdk1.4.1_01
    and also to the directory you are working
    For example, you are working in "C:\Myclasses". You need to put:
    set CLASSPATH = C:\j2sk1.4.1_01;C:\Myclasses;
    if you don't put your working directory, java doesn't find your classes
    Try it and luck!

  • How to run a java program without Java Compiler

    I have a small project and I want share it with my friends but my friend'pc have not
    Java compiler.
    for example, I writen a application like YM, then 2cp can sent,receive messege. My cumputer run as Server, and my frien PC run as client.
    How can my friend run it? or how to create an icon in dektop tu run a java program..??..
    (sorry about my English but U still understand what i mean (:-:)) )

    To run a program you don't need a Java compiler. Just the Java Runtime Engine. That can be downloaded from the Sun website and comes with an installer.
    You could then turn your application into an executable jar file and start it somehow like jar myYM.
    There is also software that packs a Java program into an executable file. I've never used that but one that comes to my mind is JexePack. It's for free if you can live with a copyright message popping up every time you start the program.
    http://www.duckware.com/jexepack/index.html

  • How to run a java program in command prompt

    hi i want to run a java program from in command prompt from another directory
    i want to run a file named First in C:\Program Files\Java\jdk1.6.0_07\bin
    so when i give the command
    java "C:\Program Files\Java\jdk1.6.0_07\bin\First"
    it doesnt works it shows
    C:\>java "C:\Program Files\Java\jdk1.6.0_07\bin\First"
    Exception in thread "main" java.lang.NoClassDefFoundError: C:\Program Files\Java
    \jdk1/6/0_07\bin\First
    Caused by: java.lang.ClassNotFoundException: C:\Program Files\Java\jdk1.6.0_07\b
    in\First
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClassInternal(Unknown Source)
    Could not find the main class: C:\Program Files\Java\jdk1.6.0_07\bin\First. Pro
    gram will exit.

    but it prints
    C:\>java -cp "C:\Program Files\Java\jdk1.6.0_07\bin\" First
    Usage: java [-options] class [args...]
    (to execute a class)
    or java [-options] -jar jarfile [args...]
    (to execute a jar file)
    where options include:
    -client to select the "client" VM
    -server to select the "server" VM
    -hotspot is a synonym for the "client" VM [deprecated]
    The default VM is client.
    -cp <class search path of directories and zip/jar files>
    -classpath <class search path of directories and zip/jar files>
    A ; separated list of directories, JAR archives,
    and ZIP archives to search for class files.
    -D<name>=<value>
    set a system property
    -verbose[:class|gc|jni]
    enable verbose output
    -version print product version and exit
    -version:<value>
    require the specified version to run
    -showversion print product version and continue
    -jre-restrict-search | -jre-no-restrict-search
    include/exclude user private JREs in the version search
    -? -help print this help message
    -X print help on non-standard options
    -ea[:<packagename>...|:<classname>]
    -enableassertions[:<packagename>...|:<classname>]
    enable assertions
    -da[:<packagename>...|:<classname>]
    -disableassertions[:<packagename>...|:<classname>]
    disable assertions
    -esa | -enablesystemassertions
    enable system assertions
    -dsa | -disablesystemassertions
    disable system assertions
    -agentlib:<libname>[=<options>]
    load native agent library <libname>, e.g. -agentlib:hprof
    see also, -agentlib:jdwp=help and -agentlib:hprof=help
    -agentpath:<pathname>[=<options>]
    load native agent library by full pathname
    -javaagent:<jarpath>[=<options>]
    load Java programming language agent, see java.lang.instrument
    -splash:<imagepath>
    show splash screen with specified image
    C:\>

Maybe you are looking for

  • Error when opening files in KM Navigation Iview / Web-Dynpro

    Hello, i've created a navigation iview to browse through my km server, and also created a web dynpro application which allows me to do the same thing. I can browse through folders without any probles, but when I try to open a file,  I get a java.lang

  • New Bank Import Format

    Hi Experts We have a situation where we had to create a "new bank import format" for a customer through the "SDK". The new import format was created in our "partner" test system. We have tested the new bank import format all seem to be working fine.

  • Outlook contacts sync problem !!!

    I exported all my phone numbers from my old phone to Outlook but when Itunes try to sync with Outlook I got the following message and nothing (none of my phone contacts) is transfered to my Iphone. Erros message: "error occurred remapping record iden

  • OS thinks my downloads folder is an application and asks me to select one

    I can't open my downloads folder as the OS thinks it's an application and directs me to find one to open it.

  • Big Problem Downgrading From Leaopard!

    Greetings, I was having big problems with iPhoto 6.06 in 10.5.1 and so decided to Archive and Install back to Tiger. After the installer finished I was asked to create a new user instead of seeing my usual log-in screen with all the users listed. Aft


HashFlare