Retrieving an ArrayList object in a JSP page and loop it

i have these statements in the java servlet class:
request.setAttribute("searchresults",searchResults);
request.getRequestDispatcher("/searchStaff.jsp").forward(request, response);
return;the searchResults is the ArrayList object.
i would very much like to know how i can retrieve this object in a JSP page and iterate through this ArrayList using JSTL. I know i will need to use the <c:forEach> tag but i don't know what i should include in the body of this tag.
thanks a lot~~~~~

<c:forEach var="columnName" items="${requestScope.searchResults}">
...

Similar Messages

How to retrieve the parameter names from a JSP page ? Urgent Please

Hello,
Can anybody tell me how to retrieve the parameter names from the JSP
page. (without using getParameterNames() method.)
The problem with the getParameterNames() method is I get the Jumbled output.
I need it very badly
With regards
Ananth R
email:[email protected]
[email protected]

Dear duffymo,
My primary intention is to convert the JSP form information into a XML file.
If I do not get the Parameter names in the correct order how can I maintain
tag order in XML file.
For ex: (JSP PAGE VIEW)
Name--
FirstName
MiddleName
LastName
Address--
Street1
Street2
City
Country
&so on
(XML File to be generated)
<Name>
<FirstName>Value</FirstName>
</Name>
<Address>
<street1>value</street1>
</Address>
& so on
If I use getParameterNames() to get all the parameter names(Which form the tag names in the XML file ) the Enumeration object it returns will not be in the same order as the text fields in JSP.From this I can not construct a meaningful XML file.
order means: Order of entry on the page, from top to bottom
That's it
Waiting for your responses

Creating a File object in a JSP page

Hi,
I am trying to create a File object in my JSP page by passing it a relative path. The jsp page is in 'website/testfolder/index.jsp' and the File is in 'website/photos/1.jpg'. In my jsp page i do the following:
<% File f = new File("../photos/1.jpg");
boolean test = f.isFile(); %>
The value returned is false. I am trying to figure out why it can't locate the file.
Thanks

You have to use absolute paths. You can get the absolute path for the given relative path by ServletContext#getRealPath().

Using Java Objects in my JSP page... objects are in a different directory

Hi,
I would like to call and use an object from a JSP page. The java object is in one directory, the jsp is in another. When I call my object, I get a JSP error that says it can't find the object and lists the directory name as part of the file.
For example, here are my two files:
/java/MyObject.class
/web/page.jsp
When I make the call to new MyObject(), I get an error message saying _web.MyObject cannot be found. Any ideas on this?
Thanks!

Okay, I figured it out. In case anyone else needs it, here is what I needed to do.
1) I created my object in a package. The JSP page was looking for the object in _dir directory because a package wasn't specified. I created a subdirectory in one of the directories in my classpath and named it the same thing that the package was named.
2) Import the package
3) Make sure all methods in the classes are public, since only public methods can be accessed from outside the package.
Thanks for the help, it got me going in the right direction.

The content type for office excel 2007 in jsp page and the mime-type in we

Hi,
In my system MS Office 2007 is installed. I am trying to generating excel sheets from JSP page by setting the content type "application/vnd.ms-excel" in jsp page and as well as in web.xml file. I am getting the below message
The file you are trying to open, 'xxxxxxxx.xls', is in a different format than specified by the file extension. Verify that the file is not corrupted and is from a trusted source before opening the file. Do you want to open the file now?
Then finally the excel file is opening and displaying properly. If in my system MS Office 2003 is installed , then the above message is not coming.
I have changed the content type according to Excel 2007 <%@ page contentType= "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" %> and in web.xml file the mime type to
<mime-mapping>
<extension>xlsx</extension>
<mime-type>application/vnd.openxmlformats-officedocument.spreadsheetml.sheet</mime-type>
</mime-mapping>
even the content type is changed according to office excel 2007 , i am getting the same above message.
My client is asking not to display the above message. So how to prevent that message ?
It's very great if any body reply me as soon as possible.

Hi Akash,
I am not using the POI. I am generating the excel sheet using the below code.
<jsp:directive.page import="java.util.Map" />
<jsp:directive.page import="lehman.ra.Report.ReportDefinition" />
<jsp:directive.page import="lehman.ra.RAUtilBean" />
<jsp:directive.page import="java.util.ArrayList" />
<jsp:directive.page import="lehman.util.GeneralUtil" />
<jsp:directive.page import="lehman.admin.report.AdminHtmlReportFormatter"/>
<jsp:directive.page import="lehman.helper.irprod.IRProdHelper"/>
<%@ page contentType= "application/vnd.ms-excel" %>
<jsp:directive.page import="java.util.Iterator"/>
<jsp:directive.page import="java.util.HashMap"/>
<%
     String strTradeDate = (String) session.getAttribute("TradingDate");
     String sContextPath = request.getContextPath();
     IRProdHelper irHelper     = new IRProdHelper();
     String sReportFormat = "E2E";
     String subtab1 = request.getParameter("subtab1");
     if (subtab1 == null)
          subtab1 ="";
     Map report_Ids    = (Map) session.getAttribute("ADMIN_E2E_REPORTS");
     AdminHtmlReportFormatter formatter = new AdminHtmlReportFormatter();
     ArrayList contentData = new ArrayList();
     ArrayList headerData = new ArrayList();
     ArrayList metaData    = new ArrayList();
     Map resultMap            = null;
     String headerString       = "";
     String contentString = "";
     String reportId            = "";
     int titleSpan         = 5;
     if( report_Ids!=null && report_Ids.size() > 0){
          Object oReportObj      = null;
          Iterator rowIter = report_Ids.keySet().iterator();
          RAUtilBean raUtilBean = new RAUtilBean();
          ReportDefinition rdef = new ReportDefinition();
          while ( rowIter.hasNext() ){
               oReportObj = rowIter.next();
               reportId = oReportObj.toString();
               System.out.println("**************reportId="+reportId);
               resultMap = (HashMap) report_Ids.get(oReportObj);
               if(resultMap == null )
                    continue;
               if(resultMap.size() > 0 ) {
                    contentData          = (ArrayList)resultMap.get(GeneralUtil.CONTENT_DATA);
                    headerData          = (ArrayList)resultMap.get(GeneralUtil.COL_METADATA);
                    metaData          = (ArrayList)resultMap.get(GeneralUtil.METADATA);
                    rdef = new ReportDefinition();
                    raUtilBean.setReportAttributes(rdef, headerData, metaData,reportId, sReportFormat);
                    titleSpan = raUtilBean.findMaxCol(contentData, rdef.getDisplayCols());
                    if("51031".equals(reportId)){
                         if(resultMap.get("HIDE_ETA")!=null){
                              boolean hideETA = ((Boolean)resultMap.get("HIDE_ETA")).booleanValue();
                              formatter.setHideETA(hideETA);
                              if(hideETA){
                                   titleSpan = titleSpan-1;
                    rdef.setMaxCol(titleSpan);
                    headerString = formatter.constructHeadingForE2E(rdef, headerData);
                    contentString = formatter.constructContentForE2E(rdef, contentData, strTradeDate, sReportFormat);
%>
<html xmlns:o="urn:schemas-microsoft-com:office:office"
     xmlns:x="urn:schemas-microsoft-com:office:excel"
     xmlns="http://www.w3.org/TR/REC-html40">
     <head>
     <meta http-equiv="Content-Type" content="text/html; charset=windows-1252"/>
     <meta name="ProgId" content="Excel.Sheet"/>
     <meta name="Generator" content="Microsoft Excel 9"/>
     <link rel="File-List" href="./Test33_files/filelist.xml"/>
     <link rel="Edit-Time-Data" href="./Test33_files/editdata.mso"/>
     <link rel="OLE-Object-Data" href="./Test33_files/oledata.mso"/>
     <link href="<%=sContextPath %>/llehman.css" rel="stylesheet" type="text/css">
     <link href="<%=sContextPath %>/llcontent.css" rel="stylesheet" type="text/css">
     <style>
     <xsl:comment>
     table
          {mso-displayed-decimal-separator:"\.";
          mso-displayed-thousand-separator:"\,";}
     .style0
          {mso-number-format:General;
          text-align:general;
          vertical-align:bottom;
          white-space:nowrap;
          mso-rotate:0;
          mso-background-source:auto;
          mso-pattern:auto;
          color:windowtext;
          font-size:10.0pt;
          font-weight:400;
          font-style:normal;
          text-decoration:none;
          font-family:Arial;
          mso-generic-font-family:auto;
          mso-font-charset:0;
          border:none;
          mso-protection:locked visible;
          mso-style-name:Normal;
          mso-style-id:0;}
     .xl21
     {mso-style-parent:style0;
     color:black;
     font-size:8.0pt;
     font-family:Arial, sans-serif;
     mso-font-charset:0;
     border-top:.5pt solid silver;
     border-right:.5pt solid silver;
     border-bottom:.5pt solid silver;
     border-left:none;}
     .xl24
          {mso-style-parent:style0;
          mso-number-format:"\#\,\#\#0\.00_\)\;\\$\#\,\#\#0\.00\\$";}
     .xl25
          {mso-style-parent:style0;
          mso-number-format:0%;}
     .xl26
          {mso-style-parent:style0;
          mso-number-format:"\#\,\#\#0_\)\;\\$\#\,\#\#0\\$";}
     .xl27
     {mso-style-parent:style0;
     background-color:#666666;
     color:#FFFFFF;
     font-size:9.0pt;
     font-family:Arial, sans-serif;
     mso-font-charset:0;
     text-align:left;
     vertical-align:middle;
     border-top:none;
     border-right:.5 pt solid silver;
     border-bottom:.5pt silver;
     border-left:none;
     mso-pattern:auto none;
     white-space:normal;
     .xl55
     color:black;
     font-size:8.0pt;
     font-weight:700;
     mso-style-parent:style0;
     mso-number-format:"\#\,\#\#0_\)\;\[Red\]\\$\#\,\#\#0\\$";
     mso-pattern:auto none;
     font-size:9.0pt;
     font-family:Arial, sans-serif;
     mso-font-charset:0;
     text-align:right;
     border-top:none;
     border-right:.5pt solid silver;
     border-bottom:.5pt solid silver;
     border-left:none;
     .xlDate{
     mso-style-parent:style0;
     mso-number-format:"yyyy\\-mm\\-dd";
     .xlDateTime{
     mso-style-parent:style0;
     mso-number-format:"yyyy\\-mm\\-dd\\ h\\:mm\\ AM\/PM";
     </xsl:comment>
     </style>
     <xml>
      <x:ExcelWorkbook>
       <x:ExcelWorksheets>
        <x:ExcelWorksheet>
          <x:Name><%=subtab1%></x:Name>
          <x:WorksheetOptions>
           <x:ProtectContents>False</x:ProtectContents>
           <x:ProtectObjects>False</x:ProtectObjects>
           <x:ProtectScenarios>False</x:ProtectScenarios>
          </x:WorksheetOptions>
        </x:ExcelWorksheet>
       </x:ExcelWorksheets>
      </x:ExcelWorkbook>
      </xml>
     </head>
<body text="#000000" style="margin-left:5px;margin-top:5px">
      <table border="0" cellpadding="0" cellspacing="0" width="100%">
          <tr>
              <td>
                   <table border='0' cellpadding="0" cellspacing='0' width="100%">
                         <tr class="xl21">
                              <td align="left" nowrap style='font-size:11px;' colspan="<%=titleSpan%>"><b><%=subtab1%></b> - COB  <%=irHelper.formatDate(strTradeDate)%>  </td>
                              </tr>
                     </table>
               </td>
          </tr>
          <tr>
               <td> </td>
          </tr>

          <tr>
               <td>
                    <%=headerString%>
                    <%=contentString%>
               </td>
          </tr>
<%
               }//end of if
          }//end of while
     }//end of if report_Ids
%>
     </table>
</body>
</html>

How can I stop the execution on a JSP page and start it again

Hi
I am making a program that simulates how to manage transactions when accessing a database by using locks. I have run into a problem and I hope someone has the time to help me.
When a user does an update the transaction commits and releases its locks when the program executes
<%stmt.executeUpdate("commit!"); %>
I need to put a break in to stop the program executing this statement, to illustrate the lock is set correctly.
I have tried to put in an alert box but this does not prevent the rest of the java code being executed.
I have tried to use prompt boxes, JavaScript functions, but these functions cannot have any java code in them.
I have tried using the java.swing JOptionPane boxes but this didn?t work either
I have tried to get input from the user but I don?t know how to retrieve this data on the same page. (As far as I know you have to use submit and even refresh the page or retrieve it on the next page).
Does anyone know how I can stop the execution on a JSP page and start it again (on same page)
Mette

I already have another client (Tomcat jsp application) running and it throws a SQLException correctly when I don�t put in a commit=true statement and don't close the database connection.
But the problem is how to get the code above to stop to illustrate I have set this lock.
I have tried to use the JOptionPane but because my program is running in a web browser I cannot use the JOptionPane dialog box.
I have tired using an alert box but it executes the commit statement before the alert box is dispayed. So this does not work
While (i < 2)
if( i==1)
%>alert(�The transactions commits when you press Ok�); <% //what it to stop execution here
else
stmt.executeUpdate(�commit�);
I am not using threads so I cannot use the sleep function.
I am using mysql and have already configured it to detect deadlocks and how long to wait for locks.
Thanks for your help
Mette

I'm trying to run a .jsp page and all I get is the following error. Thoughts?

Running Coldfusion 8 / JRun 4 updater 7 / Coldfusion 8 hotfix
2.
I'm trying to run a .jsp page and all I get is the following
error. Thoughts?
Could not invoke Java compiler, please make sure jikesw is in
I:\JRun4/bin or put a JDK bin directory in your path.
jrunx.compiler.JavaCompiler$NoCompilerFoundException: Could
not invoke Java compiler, please make sure jikesw is in
I:\JRun4/bin or put a JDK bin directory in your path.
at
jrunx.compiler.JavaCompiler.outProcessCompile(JavaCompiler.java:474)
at
jrunx.compiler.JavaCompiler.compile(JavaCompiler.java:132)
at
jrunx.compiler.JavaCompiler.compile(JavaCompiler.java:100)
at jrun.jsp.Translator.compilePage(Translator.java:176)
at jrun.jsp.Translator.translate(Translator.java:254)
at jrun.jsp.Translator.translate(Translator.java:101)
at jrun.jsp.JSPEngine.translateJSP(JSPEngine.java:707)
at jrun.jsp.JSPServlet.translate(JSPServlet.java:125)
at jrun.jsp.JSPServlet.service(JSPServlet.java:113)
at
jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:106)
at
jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42)
at
jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java:286)
at
jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java:543)
at
jrun.servlet.jrpp.JRunProxyService.invokeRunnable(JRunProxyService.java:203)
at
jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.java:428)
at jrunx.scheduler.WorkerThread.run(WorkerThread.java:66)

You're right, that ws another fix I tried. There is no fix fo
rthe issue described, but it still seems like an old issue. My
class paths are short. Here is my jvm.config (pretty standard):
# VM configuration
# Where to find JVM, if {java.home}/jre exists then that JVM
is used
# if not then it must be the path to the JRE itself
java.home=I:/JRun4/jre
# If no java.home is specified a VM is located by looking in
these places in this
# order:
# 1) bin directory for java.dll (windows) or
lib/<ARCH>/libjava.so (unix)
# 2) ../jre
# 3) registry (windows only)
# 4) JAVA_HOME env var plus jre (ie $JAVA_HOME/jre)
# Arguments to VM
java.args=-server -Xmx1000m -Dsun.io.useCanonCaches=false
-XX:MaxPermSize=256m -XX:+UseParallelGC
-Dcoldfusion.rootDir={application.home}/
# commas will be converted to platform specific separator and
the result will be passed
# as -Djava.ext.dirs= to the VM
java.ext.dirs={jre.home}/lib/ext
# where to find shared libraries
java.library.path={application.home}/lib,{application.home}/servers/cfusion/cfusion-ear/cf usion-war/WEB-INF/cfusion/lib,{application.home}/servers/cfusion/cfusion-ear/cfusion-war/W EB-INF/cfusion/jintegra/bin,{application.home}/servers/cfusion/cfusion-ear/cfusion-war/WEB -INF/cfusion/jintegra/bin/international
system.path.first=false
# set the current working directory - useful for Windows to
control
# the default search path used when loading DLLs since it
comes
# before system directory, windows directory and PATH
java.user.dir={application.home}/../lib
# JVM classpath
java.class.path={application.home}/servers/lib,{application.home}/lib

Calling Java code inside JSP page and sending toString on object to Servlet

Hi.
I am trying to setup a way to make testing my application easier. Using a web-based method will work best. Here is what I am trying to accomplish:
- Have a web page that will prompt the user to enter data, fill in text fields, make choices, etc. When done, they press the Submit button. I don't need to keep info between sessions. Just open browser, execute, view results, close browser, repeat.
- I then want to take this data and use some Java Classes I have to create a Java object.
- I then want to send the toString() results of this Java object to a known Java servlet. The result of the servlet's actions should be displayed as a response on the screen.
This is what I currently have (Ignore the
's - I don't know why they are showing up - its not important):
Web page:
<html>
<head><title>TestGroup</title></head>
<body>
<form name=f method=post action=http://localhost:100/Servlet>
Name: <br>
Group: <input name=group type=text><br>
<br>
<input type=submit value=Submit>
<input type=reset value=Reset>
</form>
</body>
</html>The Java code in the JSP (where to put it?):
<%
Group g = new Group();
g.setGroupName(request.getParameter("group"));
String output = g.toString(); // I want this to go to the Servlet.
%>But, now I am stuck as to how to piece these together. I have some JSP experience, but not quite like this.
As I said, when the user presses the Submit button, I want to perform the Java code above, and have the results of the toString method sent to the Servlet, plus clear all other parameters (so they are not sent to the servlet).
Does anyone have any advice/comments? I am open to alternative designs too, this is just the simplest one I could think of. If another JSP page is needed, that's fine too.
Thanks.

Hi.
I am trying to setup a way to make testing my application easier. Using a web-based method will work best. Here is what I am trying to accomplish:
- Have a web page that will prompt the user to enter data, fill in text fields, make choices, etc. When done, they press the Submit button. I don't need to keep info between sessions. Just open browser, execute, view results, close browser, repeat.
- I then want to take this data and use some Java Classes I have to create a Java object.
- I then want to send the toString() results of this Java object to a known Java servlet. The result of the servlet's actions should be displayed as a response on the screen.
This is what I currently have (Ignore the
's - I don't know why they are showing up - its not important):
Web page:
<html>
<head><title>TestGroup</title></head>
<body>
<form name=f method=post action=http://localhost:100/Servlet>
Name: <br>
Group: <input name=group type=text><br>
<br>
<input type=submit value=Submit>
<input type=reset value=Reset>
</form>
</body>
</html>The Java code in the JSP (where to put it?):
<%
Group g = new Group();
g.setGroupName(request.getParameter("group"));
String output = g.toString(); // I want this to go to the Servlet.
%>But, now I am stuck as to how to piece these together. I have some JSP experience, but not quite like this.
As I said, when the user presses the Submit button, I want to perform the Java code above, and have the results of the toString method sent to the Servlet, plus clear all other parameters (so they are not sent to the servlet).
Does anyone have any advice/comments? I am open to alternative designs too, this is just the simplest one I could think of. If another JSP page is needed, that's fine too.
Thanks.

How to instantiate an object in a JSP page???

I want from a JSP page instantiate an object from a client class, for example, and call its methods; one of these methods return me a RecordSet.
But I don't having success on it. What am I doing wrong??? What would I do??? Have anybody a code sample????
Regards.

Hi,
There's the code that I'm using, they are divided in 3 parts, and I really don't know what is causing this error.
********** CLASS conn ******************
* IT'S THE CLASS THAT DO THE CONNECTION
* AND EXECUTE THE SQL QUERIES
import java.sql.*;
import java.io.*;
public class conn {
public static Connection conn;
public static Statement stmt;
public static void openConn() throws SQLException {
    DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
    conn = DriverManager.getConnection("jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.24.8)(PORT = 1521)))(CONNECT_DATA =(SERVICE_NAME = ora_aula)))", "grupo6", "grupo6");
    stmt = conn.createStatement();
public boolean getConectionState() throws SQLException {
    if (conn.isClosed())
      return false;
    else
      return true;
public static void closeConn() throws SQLException {
    stmt.close();
    conn.close();
public static void postSql(String command) throws SQLException {
    stmt.executeQuery(command);
    stmt.executeQuery("COMMIT");
public ResultSet returnSql(String command) throws SQLException {
    return stmt.executeQuery(command);
********** CLASS materia ***************
* IT'S THE CLASS THAT INSTANTIATE THE
* conn CLASS AND PASS TO IT THE SQL
* THAT WILL BE EXECUTED AND RETURN THE
* RECORDSET
import java.sql.*;
public class materia{
   public Integer materia_code;
   public String materia_description;
   private conn myConn = new conn();
   private ResultSet materia_data;
   ResultSet showData(comandosql){
     try {
       myConn.openConn();
       ResultSet data = myConn.retornaSql(sql);
       myConn.closeConn();
       return data;
     catch (SQLException sqlexc) {
       System.out.print(sqlexc);
       return null;
********** jsp PAGE******************
* IT'S THE PAGE THAT INSTANTIATE THE
* materia CLASS AND EXECUTE THE
* STATEMENT, AND WHERE THE ERROR
* IS OCURRING
<%@ page import="java.sql.*" %>
<%@ page import="materia" %>
<HTML>
<TITLE> Products</TITLE>
<%
    out.println("<B> TEST </B>");
    ResultSet rs;
    materia mat = new materia();
   rs = mat.showData("SELECT * FROM PRODUCTS");
// THE ERROR OCURR IN THE STATEMENT ABOVE
// WHAT AM I DOING OF WRONG????
// ... REST OF CODE
%>
</HTML>Thanks for your help.
Regards.
Clayton

Problems with JSP pages and BC objects

Hi all. I have a new problem. I'm creating an application based on a database, using BC and JSP pages. I created entity objects from tables and then view objects. I put these view objects in an Application Module. When I test my view objects from This Application Module all works, but when I create a new JSP, I can't drag and drop any view objects in it. I'm using Jdev 10.1.2.
Is there any one who can help me?
Thank you,
Caterina.

I'm using the MVC pattern, so I have a Model directory that contains my BC, and a ViewController directory in which I want to create JSP pages with a Struts page flow.

How to test the JSP pages and sevlets using JUnit. ?

How to test the JSP pages using JUnit. How to configure what are all the steps to execute the JUnit test cases.

Hi xiepei,
since you are using modbus, a simple error checking is implicit in the protocol and is the comparison between returned checksum and the calculated one on the received message: checksum errors, if any, are an effect of communications errors (you should have at least 2 bits changed and on particular patterns to have the checksum be calculated correctly!). You won't be able to calculate BER on them, but you can calculate PER (Packet Error Rate).
Another flag for communication errors, on the other direction, is to intercept error messages from the device: if it fully implements modbus protocol, it should return some warning in case of error (I seem to remember that in some cases it returns the reveived message with some error bits added: please check in modbus documentation).
Proud to use LW/CVI from 3.1 on.
My contributions to the Developer Zone Community
If I have helped you, why not giving me a kudos?

Capturing the output of a jsp page and save that output in a WORD .doc file

Hi,
This is Naveen. I got stuck up with a problem/doubt. URGENT ! URGENT !
My doubt is how to capture the output of a jsp page(the content is dynamic generated) and save that output to a MS-Word doc file.
I know that therez an option of using Servlets Filters, but this concept is supported by Servlet 2.3 spec. and not earlier. And we are working on previous spec. and our web-servers also supports the prev. version and not the 2.3 version.
If incase, therez a third-party utility for free usage, suggestions are appreciated.
Hope most of them came across this kind of functional requirement. If anyone of them succeeded in this, please express ur bitter experience if any, faced during the coding.
Thanks in Advance for help.
Naveen

You can set the MIME content type as .doc and try to open the Page.
res.setContentType("application/vnd.ms-excel"); to generate the Page output as Excel
res.setContentType("application/vnd.ms-word"); to generate the Page output as MS Word doc
Hope this helps..

Applet loads in one jsp page and doesn't in the other

Hi,
I've got a strange problem. I've written an applet which I want to embed in a jsp page in a web application. I've created a very small web application to simplify testing the applet, and all works well in it. But when I try to embed the applet in my real web application (exactly the same way) it fails to init, firefox hangs, and in java console I get;
java.lang.ClassFormatError: Incompatible magic value 168430090 in class file pl/cardq/applet/GameApplet1
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
at sun.applet.AppletClassLoader.findClass(AppletClassLoader.java:178)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.applet.AppletClassLoader.loadClass(AppletClassLoader.java:127)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at sun.applet.AppletClassLoader.loadCode(AppletClassLoader.java:618)
at sun.applet.AppletPanel.createApplet(AppletPanel.java:778)
at sun.plugin.AppletViewer.createApplet(AppletViewer.java:2045)
at sun.applet.AppletPanel.runLoader(AppletPanel.java:707)
at sun.applet.AppletPanel.run(AppletPanel.java:361)
at java.lang.Thread.run(Thread.java:619)
Any idea what that means?
Thanks in advance

Once the print window is open, click on "PDF", in the list of options you will find "open PDF in Preview".
(I hope my translation is good because I am using French...)

How the hell does a person share session data between JSP page and a Servle

1. How the hell does one share session data between a servlet and a JSP page without using a bean but rather using a normal string variable.
2. When using session scope to access a bean the application complains about not finding the bean on the specified scope, however when I use an application scope the save the same bean, the application does find it.
Please help!!!!!!!
SERVLET:
HttpSession session = request.getSession(true);
ServletContext servletContext = session.getServletContext();
customerID = result.getString("CustomerID");
userName = result.getString("UserName");
session.setAttribute("UserName",userName);
session.setAttribute("CustomerID",customerID);
System.out.println("Customer UserName = " + session.getAttribute("UserName"));
response.sendRedirect("/economics/subscriptions/default.jsp");
JSP PAGE:
<?xml version="1.0" encoding="UTF-8"?>
<jsp:root xmlns:jsp=http://java.sun.com/JSP/Page mlns:c="http://java.sun.com/jsp/jstl/core" xmlns:sql="http://java.sun.com/jsp/jstl/sql" version="2.0">
<jsp:directive.page isThreadSafe="true" session="true" contentType="text/xml"/><jsp:output omit-xml-declaration="false"/><jsp:scriptlet>response.addHeader("x-xslt-nocache", "true");</jsp:scriptlet><pml>
<page type="web" search="y">
     <pageName>Commercial Banking</pageName>
     <jsp:directive.include file="/economics/header.inc"/>
     <jsp:directive.include file="/login.inc"/>
     <jsp:directive.include file="/economics/leftMenu.inc"/>
     
     <content>
     <searchSum>Commercial - Main Content</searchSum>
     Value = <c:out value="${request.session.getAttribute("UserName")}"/>
     </content>
     <jsp:directive.include file="/economics/rightNav.inc"/>
     <jsp:directive.include file="/footer.inc"/>
</page></pml></jsp:root>

For a start, just "session" instead of "request.session" would work better. But why did you post this here and not in the JSP forum? Doesn't seem to have anything to do with Java programming.

Single signon between JSP page and Net.Data page

I am trying to setup a single signon between a JSP page hosted on a tomcat server, and a Net.Data page hosted on an IBM HTTP server. Both of these servers are running on an AS400. The JSP page (www.jsppage.com/menu) contains a link to the Net.Data page (www.netData.com/page2). In order to access www.jsppage.com/menu the user needs to login. Once this happens I want them to be able to go back and forth between the two pages without having to log in when they switch servers. Page navigation is handled through myServlet.java so that when a user clicks on a link the request is forwarded on to myServlet.java where the servlet determines where to redirect the user to. The servlet uses
RequestDispatcher requestDispatcher = getServletContex().getRequestDispatcher(url);
requestDispatcher.forward(request, response);
to forward the user to the correct page. This works fine for the JSP pages but when I forward to www.netData.com/page2 I get an error telling me the address doesn't start with a /. I also need to send the user name and password for the net.data pages to avoid the second login window to popup.
I understand that the requestDsipatcher.forward() method directs the browser to a page that is relative to the current root directory. If I try to use response.sendRedirect(url) I get sent to the right page but the signon window pops up. I would appreciate any help.

I am trying to setup a single signon between a JSP
page hosted on a tomcat server, and a Net.Data page
hosted on an IBM HTTP server. Both of these servers
are running on an AS400. The JSP page
(www.jsppage.com/menu) contains a link to the Net.Data
page (www.netData.com/page2). In order to access
www.jsppage.com/menu the user needs to login. Once
this happens I want them to be able to go back and
forth between the two pages without having to log in
when they switch servers. Page navigation is handled
through myServlet.java so that when a user clicks on a
link the request is forwarded on to myServlet.java
where the servlet determines where to redirect the
user to. The servlet uses
RequestDispatcher requestDispatcher =
getServletContex().getRequestDispatcher(url);
requestDispatcher.forward(request, response);
to forward the user to the correct page. This works
fine for the JSP pages but when I forward to
www.netData.com/page2 I get an error telling me the
address doesn't start with a /. I also need to send
the user name and password for the net.data pages to
avoid the second login window to popup.
I understand that the requestDsipatcher.forward()
method directs the browser to a page that is relative
to the current root directory. If I try to use
response.sendRedirect(url) I get sent to the right
page but the signon window pops up. I would
appreciate any help.You can't do that without passing username and password.
The servers keep track of the user by storing a cookie on the clients computer. The cookie is only valid for the domain that created it.
So, to make this work you need to send the username and password as part of the sendRedirect. the forward() method won't work.
What you could do is create some code on the .net machine that accepts username, password and target URL as input. Once it receives those parameters it should perform the .net login procedure and redirect to the correct page.
In your servlet you should pass those parameters on to the .net machine and the user should get the correct page without ever seeing any login windows.
Make sure to use https if you decide to follow this scheme since http will transmit the username/password in cleartext.
/Christopher

Retrieving an ArrayList object in a JSP page and loop it

Similar Messages

Maybe you are looking for