Problem JSP and WebLogic 5.1

Hi!!!
I have a problem that I�m trying to show some results of a table of a DB with a JSP...but I don�t obtain nothing like result,....I don�t know why...I would hope to see the information of my table, like a select of SQL.
My code is:
<%
Connection conn = null;
try {
Class.forName("weblogic.jdbc.pool.Driver").newInstance();
conn = DriverManager.getConnection("jdbc:weblogic:pool:Mypool");
catch (Exception e) {
e.printStackTrace();
Statement stmt = conn.createStatement();
stmt.execute("select * from cat_employee");
ResultSet rs = stmt.getResultSet();
while (rs.next()) {
System.out.println(rs.getInt("key_1") + " - " + rs.getInt("key_2") + " - " + rs.getString("employee"));
stmt.close();
conn.close();
%>
Where cat_employee is the table name,
key_1, key_2 are fields of cat_employee table, of type numeric
employee is a field of cat_employee table, of type String
I think that with getInt() method, I obtain a number and with getString() method, I obtain a string....but I haven�t the complete API documentation, only the following API link:
http://www.weblogic.com/docs51/classdocs/javadocs/index.html
And the information about getString() ang getInt() is very incomplete there, if somebody have information about a API complete I would be very thankful with you. I�m using weblogic 5.1 in my development enviroment.
Thank you....

Hi!!!
(Your email direction doesn�t correct.....because my mail was returned to me....could you answer me to the following email: [email protected] please)
Thank you to answer me......I was really worried.....because nobady had done that.....
My problem is that I wish to do some queries to a table of a Municipalities DB, I have read about that....and according with the exemples....my JSP...should be running and executing very well....but I haven�t had success with that...:(
My JSP file is:
<!doctype html public "-//w3c//dtd html 3.2//en">
<html>

<head>
<title>Query of Municipalities</title>
</head>
<body bgcolor=#FFFFFF>
<font face="Helvetica">
<h1>
<font color=#DB1260>
Municipalities List
</font>
</h1>
<%@ page import="
weblogic.db.jdbc.*,
weblogic.html.*,
java.sql.*
" %>
<p>
<%
Connection conn = null;
try {
Class.forName("weblogic.jdbc.pool.Driver").newInstance();
conn = DriverManager.getConnection("jdbc:weblogic:pool:DESAPool");
catch (Exception e) {
e.printStackTrace();
Statement stmt = conn.createStatement();
stmt.execute("select * from cat_municipio");
ResultSet rs = stmt.getResultSet();
while (rs.next()) {
System.out.println(rs.getInt("cve_municipio") + " - " + rs.getInt("cve_sepomex") + " - " + rs.getString("desc_municipio"));
stmt.close();
conn.close();
%>
<p>Please call Mary with any updates ASAP!
<p>
<font size=-1>Copyright (c) 1999-2000 by BEA Systems, Inc. All Rights Reserved.
</font>
</font>
</body>
</html>
My result obtained is the following:
Municipalities List
Please call Mary with any updates ASAP!
Copyright (c) 1999-2000 by BEA Systems, Inc. All Rights Reserved.
I don�t obtain nothing.....is like DB table were without information......but in reality the DB table has information.....and I can obtain it with the following JSP:
<!doctype html public "-//w3c//dtd html 3.2//en">
<html>

<head>
<title>Query of Municipalities</title>
</head>
<body bgcolor=#FFFFFF>
<font face="Helvetica">
<h1>
<font color=#DB1260>
Municipalities List
</font>
</h1>
<%@ page import="
weblogic.db.jdbc.*,
weblogic.html.*,
java.sql.*
" %>
<p>
<%
Connection conn = null;
try {
Class.forName("weblogic.jdbc.pool.Driver").newInstance();
conn = DriverManager.getConnection("jdbc:weblogic:pool:DESAPool");
// Fetch all records from the database in a TableDataSet
DataSet dSet = new TableDataSet(conn, "cat_municipio").fetchRecords();
TableElement tE = new TableElement(dSet);
tE.setBorder(1);
out.print(tE);
} catch (SQLException sqle) {
out.print("Sorry, the database is not available.");
out.print("Exception: " + sqle);
} catch (Exception e) {
out.print("Exception occured: " + e);
} finally {
if(conn != null)
try {
conn.close();
} catch(SQLException sqle) {}
%>
<p>Please call Mary with any updates ASAP!
<p>
<font size=-1>Copyright (c) 1999-2000 by BEA Systems, Inc. All Rights Reserved.
</font>
</font>
</body>
</html>
and with this JSP I obtain all the following information:
Municipalities List
CVE_MUNICIPIO CVE_SEPOMEX DESC_MUNICIPIO
1 1 ACAJETE
2 2 ACATENO
3 3 ACATLAN
4 4 ACATZINGO
5 5 ACTEOPAN
Now...I need that the first JSP work very well, because...with that way...I can do queries and obtain the needed results for showing them in the Browser......
So...I hope you understand me, and you could help me please, because I don�t have idea why I don�t obtain the results of a simple query that I am trying to do...thanks.....
Mary
P.D. I also attempted with the following JSP...but the result is the same....I don�t obtain none result...
<!doctype html public "-//w3c//dtd html 3.2//en">
<html>

<head>
<title>Query of Municipalities</title>
</head>
<body bgcolor=#FFFFFF>
<font face="Helvetica">
<h1>
<font color=#DB1260>
Municipalities List
</font>
</h1>
<%@ page import="
weblogic.db.jdbc.*,
weblogic.html.*,
java.sql.*
" %>
<p>
<%
Connection conn = null;
try {
Class.forName("weblogic.jdbc.pool.Driver").newInstance();
conn = DriverManager.getConnection("jdbc:weblogic:pool:DESAPool");
catch (Exception e) {
e.printStackTrace();
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("select CVE_MUNICIPIO, CVE_SEPOMEX, DESC_MUNICIPIO from cat_municipio");
while (rs.next()) {
System.out.println(rs.getInt(1) + " - " + rs.getInt(2) + " - " + rs.getString(3));
rs.close();
stmt.close();
conn.close();
%>
<p>Please call Mary with any updates ASAP!
<p>
<font size=-1>Copyright (c) 1999-2000 by BEA Systems, Inc. All Rights Reserved.
</font>
</font>
</body>
</html>

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+     at org.apache.myfaces.trinidad.context.ExternalContextDecorator.dispatch(ExternalContextDecorator.java:44)+
+     at org.apache.myfaces.trinidad.context.ExternalContextDecorator.dispatch(ExternalContextDecorator.java:44)+
+     at org.apache.myfaces.trinidadinternal.context.FacesContextFactoryImpl$OverrideDispatch.dispatch(FacesContextFactoryImpl.java:267)+
+     at com.sun.faces.application.ViewHandlerImpl.executePageToBuildView(ViewHandlerImpl.java:469)+
+     at com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:140)+
+     at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:189)+
+     at org.apache.myfaces.trinidadinternal.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:193)+
+     at oracle.sysman.emSDK.adfext.ctlr.EMViewHandlerImpl.renderView(EMViewHandlerImpl.java:149)+
+     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._renderResponse(LifecycleImpl.java:800)+
+     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:294)+
+     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:214)+
+     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:266)+
+     at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)+
+     at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)+
+     at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)+
+     at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.help.web.rich.OHWFilter.doFilter(Unknown Source)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.sysman.emSDK.license.LicenseFilter.doFilter(LicenseFilter.java:164)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:205)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:106)+
+     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:446)+
+     at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)+
+     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:446)+
+     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:271)+
+     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:177)+
+     at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.sysman.emas.fwk.MASConnectionFilter.doFilter(MASConnectionFilter.java:41)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.adf.library.webapp.LibraryFilter.doFilter(LibraryFilter.java:175)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.sysman.eml.app.AuditServletFilter.doFilter(AuditServletFilter.java:179)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.sysman.eml.app.EMRepLoginFilter.doFilter(EMRepLoginFilter.java:203)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.sysman.core.model.targetauth.EMLangPrefFilter.doFilter(EMLangPrefFilter.java:105)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.sysman.core.app.perf.PerfFilter.doFilter(PerfFilter.java:141)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.sysman.eml.app.ContextInitFilter.doFilter(ContextInitFilter.java:542)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:111)+
+     at java.security.AccessController.doPrivileged(Native Method)+
+     at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:313)+
+     at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:413)+
+     at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:94)+
+     at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:161)+
+     at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:136)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715)+
+     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)+
+     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)+
+     at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)+
+     at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)+
+     at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)+
+     at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)+
+     at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)+
+     at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)+
>
<Oct 27, 2011 10:05:14 AM ICT> <Error> <HTTP> <BEA-101020> <[ServletContext@333967374[app:em module:/em path:/em spec-version:2.5]] Servlet failed with Exception
java.lang.IllegalStateException: Cannot forward a response that is already committed
+     at weblogic.servlet.internal.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:122)+
+     at com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:410)+
+     at org.apache.myfaces.trinidad.context.ExternalContextDecorator.dispatch(ExternalContextDecorator.java:44)+
+     at org.apache.myfaces.trinidad.context.ExternalContextDecorator.dispatch(ExternalContextDecorator.java:44)+
+     at org.apache.myfaces.trinidad.context.ExternalContextDecorator.dispatch(ExternalContextDecorator.java:44)+
+     Truncated. see log file for complete stacktrace+
>
<Oct 27, 2011 10:05:14 AM ICT> <Notice> <Diagnostics> <BEA-320068> <Watch 'UncheckedException' with severity 'Notice' on server 'AdminServer' has triggered at Oct 27, 2011 10:05:14 AM ICT. Notification details:
WatchRuleType: Log
WatchRule: (SEVERITY = 'Error') AND ((MSGID = 'WL-101020') OR (MSGID = 'WL-101017') OR (MSGID = 'WL-000802') OR (MSGID = 'BEA-101020') OR (MSGID = 'BEA-101017') OR (MSGID = 'BEA-000802'))
WatchData: DATE = Oct 27, 2011 10:05:14 AM ICT SERVER = AdminServer MESSAGE = [ServletContext@333967374[app:em module:/em path:/em spec-version:2.5]] Servlet failed with Exception
java.lang.IllegalStateException: Cannot forward a response that is already committed
+     at weblogic.servlet.internal.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:122)+
+     at com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:410)+
+     at org.apache.myfaces.trinidad.context.ExternalContextDecorator.dispatch(ExternalContextDecorator.java:44)+
+     at org.apache.myfaces.trinidad.context.ExternalContextDecorator.dispatch(ExternalContextDecorator.java:44)+
+     at org.apache.myfaces.trinidad.context.ExternalContextDecorator.dispatch(ExternalContextDecorator.java:44)+
+     at org.apache.myfaces.trinidad.context.ExternalContextDecorator.dispatch(ExternalContextDecorator.java:44)+
+     at org.apache.myfaces.trinidadinternal.context.FacesContextFactoryImpl$OverrideDispatch.dispatch(FacesContextFactoryImpl.java:267)+
+     at com.sun.faces.application.ViewHandlerImpl.executePageToBuildView(ViewHandlerImpl.java:469)+
+     at com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:140)+
+     at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:189)+
+     at org.apache.myfaces.trinidadinternal.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:193)+
+     at oracle.sysman.emSDK.adfext.ctlr.EMViewHandlerImpl.renderView(EMViewHandlerImpl.java:149)+
+     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._renderResponse(LifecycleImpl.java:800)+
+     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:294)+
+     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:214)+
+     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:266)+
+     at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)+
+     at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)+
+     at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)+
+     at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.help.web.rich.OHWFilter.doFilter(Unknown Source)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.sysman.emSDK.license.LicenseFilter.doFilter(LicenseFilter.java:164)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:205)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:106)+
+     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:446)+
+     at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)+
+     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:446)+
+     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:271)+
+     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:177)+
+     at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.sysman.emas.fwk.MASConnectionFilter.doFilter(MASConnectionFilter.java:41)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.adf.library.webapp.LibraryFilter.doFilter(LibraryFilter.java:175)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.sysman.eml.app.AuditServletFilter.doFilter(AuditServletFilter.java:179)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.sysman.eml.app.EMRepLoginFilter.doFilter(EMRepLoginFilter.java:203)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.sysman.core.model.targetauth.EMLangPrefFilter.doFilter(EMLangPrefFilter.java:105)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.sysman.core.app.perf.PerfFilter.doFilter(PerfFilter.java:141)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.sysman.eml.app.ContextInitFilter.doFilter(ContextInitFilter.java:542)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:111)+
+     at java.security.AccessController.doPrivileged(Native Method)+
+     at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:313)+
+     at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:413)+
+     at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:94)+
+     at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:161)+
+     at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:136)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715)+
+     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)+
+     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)+
+     at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)+
+     at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)+
+     at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)+
+     at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)+
+     at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)+
+     at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)+
SUBSYSTEM = HTTP USERID = <WLS Kernel> SEVERITY = Error THREAD = [ACTIVE] ExecuteThread: '4' for queue: 'weblogic.kernel.Default (self-tuning)' MSGID = BEA-101020 MACHINE = IDM_APP TXID = CONTEXTID = 3ca8d5161a516ac2:7fbc50ed:1334350f599:-8000-0000000000000083 TIMESTAMP = 1319684714138
WatchAlarmType: AutomaticReset
WatchAlarmResetPeriod: 30000
>
<Oct 27, 2011 10:05:15 AM ICT> <Alert> <Diagnostics> <BEA-320016> <Creating diagnostic image in c:\oracle\middleware\user_projects\domains\base_domain\servers\adminserver\adr\diag\ofm\base_domain\adminserver\incident\incdir_18 with a lockout minute period of 1.>
But the weird thing is success when login to SOA (http:\\<host>:8001\soa-infra)
Can anyone help me why this problem occured and how to solve it?
Thank you,
Ivan P.

Hi
Try to increase socket limits
Normally you can do this within the admin console , Servers -> Configuration -> Tuning -> Socket Readers
For you, since you can't login, set the ThreadPoolPercentSocketReaders in the config.xml to a higher value than 5
kind regards
Michel

I want to make a chatroom using jsp, and have some problem, Help!

I want to build a chatroom using jsp and client using plain html, so i need every client could have a constant connection with the web server and will receive messages realtime. But i got 2 problems.
First, how can i turn my buffers off so that messages can get to the client the time it is meant to be. I added
<@page buffer="none">
but seems that it takes no effect, any tricks here? thx
Second, I want every user could have a constant conn. with server but i dont want my server to waste resources on those connection that has already been disconnected.so is it possible to stop executing JSP pages once client has diconnected.Since i found that it will throw no exception writing to the client even if the connection is disconnected in JSPs.
Thanks!!!!!

By theway, i'm using TOMCat 5.0 as my JSP container.

JSP and Tomcat Problem

Folks,
My apologies if this is off-topic for this forum, but I've been having this problem using Tomcat and JSP. I'm fairly new to Java.
Basically, I'm writing a webapp that uses servlets and JSP together. The servlet and backend classes all compile fine. Now, basic frontend page is called Console.jsp, and one of the commands that it runs is <%@ page import="DJUser">
Here's the problem: Console.jsp is in $CATALINA_HOME/webapp/
DJUser (and the rest of the classes I'm using) are in $CATALINA_HOME/webapp/WEB-INF/classes
When I attempt to run Console.jsp I get this error:
exception
org.apache.jasper.JasperException: Unable to compile class for JSP
Generated servlet error:
The import DJUser cannot be resolved
An error occurred at line: 9 in the jsp file: /Console.jsp
Generated servlet error:
DJUser cannot be resolved to a type
An error occurred at line: 11 in the jsp file: /Console.jsp
Generated servlet error:
user cannot be resolved
An error occurred at line: 11 in the jsp file: /Console.jsp
Generated servlet error:
DJUser cannot be resolved to a type
     org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:84)
     org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:328)
     org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:409)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:288)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:267)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:255)
     org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:563)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:293)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
The ROOT CAUSE is listed as:
java.lang.ClassNotFoundException: org.apache.jsp.Console_jsp
     java.net.URLClassLoader$1.run(URLClassLoader.java:200)
     java.security.AccessController.doPrivileged(Native Method)
     java.net.URLClassLoader.findClass(URLClassLoader.java:188)
     org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:133)
     org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:65)
     org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:596)
     org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:137)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:305)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
I'm running Tomcat 5.5.12 on Mac OS X 10.4. Could this be a permissions issue somehow? For right now (testing purposes only) I have tomcat running under my (non root) account.
I've been scouring the web for a while, and I can't really find anything on this. I'd appreciate any help you could give me.
Thanks!
Dylan

Put the DJUser java file in a package (say com.myClasses) and recompile. Then put the DJUser class file under the WEB-INF/classes directory in the proper package structure (WEB-INF/classes/com/myClasses/DJUser). Stop and restart the server to pick up the new classes. Make sure to change the jsp import statement ( <%@ page import="com.myClasses.DJUser">)

Jsp and javascript problem

I have a JSP page with a table of n rows. Each row has the option of having
          a dropdown list appear on that particular row. The user should have the
          ability to make a selection from the drop down list and have the page change
          to the correct page automatically or it can allow the user to change and
          have them click on a link that passes the value of the select box as a
          parameter to the proper page.
          The problem is that each row CAN NOT be in it's own form. The action for
          the current form is NOT the action I want the select box to use.
          I can't seem to figure out how to get the value of the select box in
          javascript passed as a parameter using a JSP variable.
          Example code:
          <form method="post" action="/index.jsp">
          <table>
          <tr>
          <td> Remove Row? </td>
          <td> View Options? </td>
          <td> Name </td>
          </tr>
          <tr>
          <td> <input type=checkbox name='<%=rowNumber %>' value='<%=
          someCheckboxValue %>'> </td>
          <td> <select name=selectOptions>
          <option value="option 1">option1</option>
          <option value="option 2">option2</option>
          <option value="option 3">option 3</option>
          </select>
            View Option
          </td>
          <td> <%= rowName %> </td>
          </tr>
          <tr>
          <td colspan="3"> <input type=button name='UpdateExampleForm'
          value='Submit'> </td>
          </tr>
          </table>
          </form>


actually i am taking menus from database in file ourmenu.jsp
and i have another file called menu.js which displays the menus on browser
menu.js is the file which i have downloaded from net
and i want to use at it is but with a difference that it should display the menus which r coming from database
in file ourmenu.jsp i have saved the menus in array so can anyone tell me how to refer them in my .js file.
i have tried with foll. code::
var aUsername =new array();
<% i=0;
while (padtemp[i] != null)
%>
aUsername[<%= ++i%>] = "<%= padtemp[i] %>";
in .js file but i am getting no o/p on browser
i have tried with runat=server while including the .js file in .jsp file but its not working too.
can anyone help please
thanks in advance

Jsp and JavaBean problem

Hi All,
I need UR help
Problem:
I have a javaBean and a jsp page say test.class and test.jsp respectively.
Now the problem is when i run my jsp in web browser with path
http://localhost:8080/mypackage/test.jsp and use test.class in it. It give me an error Class test.class Not Found but when i give the path http://localhost:8080/examples/jsp/parentpackage/mypackage/test.jsp
it works fine.
I am using Tomcat 3.2 and i have already made changes in server.xml for my jsp files thats why i can run my programs with the earlier path but dont know why its giving the error when i use javabean,
Also i have put my javabean class in---parentpackage/mypackage/test.class
Thanks
Amit

hi there,
Thanks for you time, here i have placed the source for jsp and javabean
Please excuse me if you find the code unproper
Code for JSP:
<%
response.setHeader("Pragma","No-cache");
response.setDateHeader("Expires",0);
response.setHeader("Cache-control","No-cache");
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Internal Clarification-Agent View</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body background="images/c.jpg" bgproperties="fixed">
<%@ page language="java" import="java.sql.*" %>
<%@ page import="javax.servlet.*" %>
<%@ page import="java.io.*" %>
<%@ page import="java.util.*" session="true"%>
<%@ page import="java.util.Date" %>
<%@ page import="java.sql.Timestamp" %>
<%@ page import="java.text.*" %>
<%@ page import="java.lang.*" %>
<%@ page import="javax.servlet.http.*"%>
<jsp:useBean id="navi" class="arvato.interclarification.rqchunk" scope="session" />
<%
try{
Connection con = null;
PreparedStatement ps = null;
PreparedStatement ps1 = null;
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
con = DriverManager.getConnection("jdbc:odbc:interdsn","","");
String qrno = request.getParameter("qrno");
String rdb = request.getParameter("rb");
String key = request.getParameter("key");
String cname = request.getParameter("cname");
//out.print(key);
//if(st.equals("All")){
String sql="";
if(rdb!=null){
if(rdb.equals("1")){
if(qrno==null||qrno.equals("")){
sql = "SELECT * FROM crequired ORDER BY adate DESC";
else if(qrno!=null){
sql = "SELECT * FROM crequired WHERE queryno LIKE '"+qrno+"%'";
}else if(rdb.equals("2")){
if(key==null||key.equals("")){
sql = "SELECT * FROM crequired ORDER BY adate DESC";
else if(key!=null){
sql = "SELECT * FROM crequired WHERE clarification LIKE '"+key+"%'";
else if(rdb.equals("3")){
if(cname==null||cname.equals("")){
sql = "SELECT * FROM crequired ORDER BY adate DESC";
else if(cname!=null){
sql = "SELECT * FROM crequired WHERE fname LIKE '"+cname+"%'";
if(rdb==null)
sql = "SELECT * FROM crequired ORDER BY adate DESC";
ps = con.prepareStatement(sql,ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);
//ps.setString(1,space);
/*}else{
sql = "SELECT * FROM crequired WHERE status=? AND space=?";
ps = con.prepareStatement(sql);
ps.setString(1,st);
ps.setString(2,space);
ResultSet rs = ps.executeQuery();
%>
<table width="100%" border="0" cellspacing="0">
<tr>
<td width="50%"><strong><img src="images/microsoftlogo1.jpg" width="288" height="94"></strong></td>
<td width="50%"><div align="right"><strong><img src="images/logo2.jpg" width="177" height="77"></strong></div></td>
</tr>
</table><br>
<hr noshade color="#000000">
<div align="center"><font color="#990000" size="4" face="Verdana, Arial, Helvetica, sans-serif"><strong>CSR
VIEW</strong></font>
</div>
<form name="form" method="post" action="agentview1.jsp">
<table width="59%" border="1" align="center" cellpadding="2" cellspacing="0">
<tr>
<td width="49%"><font size="2" face="Verdana, Arial, Helvetica, sans-serif"><strong>
<input name="rb" type="radio" value="1" <%if(rdb!=null){if(rdb.equals("1")){out.print("checked");}}%>>
<font size="1">SEARCH BY QUERY NUMBER:</font></strong></font></td>
<td width="51%"><input name="qrno" type="text" id="qrno"></td>
</tr>
<tr>
<td><strong><font size="2" face="Verdana, Arial, Helvetica, sans-serif">
<input type="radio" name="rb" value="2" <%if(rdb!=null){if(rdb.equals("2")){out.print("checked");}}%>>
<font size="1"> SEARCH BY KEY WORD:</font></font></strong></td>
<td><input name="key" type="text" id="key"></td>
</tr>
<tr>
<td><input type="radio" name="rb" value="3" <%if(rdb!=null){if(rdb.equals("3")){out.print("checked");}}%>>
<strong><font size="1" face="Verdana, Arial, Helvetica, sans-serif">SEARCH
BY CSR NAME:</font></strong></td>
<td><input name="cname" type="text" id="cname"></td>
</tr>
<tr>
<td colspan="2"><div align="center">
<input type="submit" name="Submit" value="Submit">
</div></td>
</tr>
</table>
</form><br>
Back
<%
navi.setchunk(10);
navi.setRS(rs);
String v="";
String vv=request.getParameter("off");
if(vv==null){v="1";}
else{
v=vv;
int i=Integer.parseInt(v);
navi.setcursor(i);
ResultSet rs2=navi.getRS();
int h1=1;
if(request.getParameter("off")!=null) h1=Integer.parseInt(request.getParameter("off"));
int h2= navi.getchunk();
int h3= navi.getcount();
int offset=(h3-h1)<h2?h3:(h1+h2-1);
%>
<table width=100%><tr><td width=33%> </td><td align=center width=34%><font face="verdana, arial" size=2 color=#000000>Displaying <%=h1%> to <%=offset%> of <font size=4><%=h3 %></font></font></td><td width=33%> </td></tr></table>
<%
int c1=navi.getcount(),c2=navi.getchunk();
int c3=navi.getcursor();
int c4=c3+c2;
int c5=c3-c2;
%>
<table width=100% ><tr><td align=left width=100% >
<%
if(c3>c2 && c3<=c1){
out.print("<a href=\"agentview1.jsp?n=y&off="+c5+"\">Previous</a>");
%></td><td align=right width=100%>
<%
if(c1>c2 && (c1-c3)>=c2){
out.print("<a href=\"agentview1.jsp?n=y&off="+c4+"\">Next</a>");}
%>
</td></tr></table>
<table width="1359" border="0" cellspacing="1">
<tr bgcolor="#3C6C84">
<th width="2%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">S.No.</font></th>
     <th width="5%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">Query No</font></th>
<th width="5%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">Clarification
Posting Date & Time</font></th>
     <th width="3%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">Posted
By</font></th>
<th width="6%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">Received
By</font></th>
<th width="3%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">Sub
Process </font></th>
     <th width="4%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">Region</font></th>
<th width="5%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">Status</font></th>
<th width="15%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">Clarification
Required OnQuery </font></th>
<th width="18%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">Solution</font></th>
<th width="8%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">Date
& Time Visited On</font></th>
<th width="7%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">Date
& Time Closed On</font></th>
<th width="5%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">Remarks</font></th>
</tr>
<%
int m = 0;
for(int l=0;l<c2 && i<=c1;l++,i++){
//while(rs.next()){
m = m+1;
String queryno = rs.getString("queryno");
//out.print(queryno);
%>
<tr>
<td bgcolor="#FFFFCC"><font face="Verdana, Arial, Helvetica, sans-serif" size="1"><b><%=m%></b></font></td>
     <td width="5%" bgcolor="#FFE4CA"><font face="Verdana, Arial, Helvetica, sans-serif" size="1"><b><%=queryno%></b></font></td>
<td bgcolor="#FFFFCC"><font face="Verdana, Arial, Helvetica, sans-serif" size="1">
<%Date d1 = rs.getDate("adate");
     String dd1="";
     SimpleDateFormat sddf = new SimpleDateFormat("MM/dd/yyyy");
     dd1 = sddf.format(d1);
     Date t1 = rs.getTime("atime");
     String tt1="";
     SimpleDateFormat stdf = new SimpleDateFormat("HH:mm");
     tt1 = stdf.format(t1);
     String ttm = dd1+" "+tt1;
     out.print(ttm);
     %></font>
</td>
     <td bgcolor="#FFE4CA"><font face="Verdana, Arial, Helvetica, sans-serif" size="1">
<b><%String fnm = rs.getString("fname");
String lnm = rs.getString("lname");
String nm = fnm+" "+lnm;
out.print(nm);
%></b></font></td>
<td width="6%" bgcolor="#FFFFCC"><font face="Verdana, Arial, Helvetica, sans-serif" size="1"><%
     String tnm = rs.getString("tname");
     if(tnm.equals("null")||tnm.equals("-")){}else{out.print(tnm);}
     %></font></td>
     <td bgcolor="#FFE4CA"><font face="Verdana, Arial, Helvetica, sans-serif" size="1"><b><%=rs.getString("space")%></b></font></td>
     <td bgcolor="#FFFFCC"><font face="Verdana, Arial, Helvetica, sans-serif" size="1"><b><%String rg = rs.getString("region");
     if(rg==null||rg.equals("null")){}else{out.print(rg);}%></b></font></td>
     <%String status = rs.getString("status");
     if(status.equalsIgnoreCase("New")){%><td bgcolor="#FF0000"><font face="Verdana, Arial, Helvetica, sans-serif" size="1" color="#FFFFFF"><b><%=status%></b></font></td>
     <%}else if(status.equalsIgnoreCase("Open")||status.equalsIgnoreCase("Awaiting MS Reply")){%><td bgcolor="#FFCC33"><font face="Verdana, Arial, Helvetica, sans-serif" size="1" color="#FFFFFF"><b><%=status%></b></font></td><%}else{%><td bgcolor="#00CC00"><font face="Verdana, Arial, Helvetica, sans-serif" size="1" color="#FFFFFF"><b><%=status%></b></font></td><%}%>
<td bgcolor="#FFE4CA"><font face="Verdana, Arial, Helvetica, sans-serif" size="1" color="#0000CC"><%=rs.getString("clarification")%></font></td>
     <%
//String queryno = rs.getString("queryno");
String qry1 = "select * from csolution where queryno=?";
ps1 = con.prepareStatement(qry1);
ps1.setString(1,queryno);
ResultSet rs1 = ps1.executeQuery();
while(rs1.next()){%>
<td bgcolor="#FFFFCC"><font face="Verdana, Arial, Helvetica, sans-serif" size="1"><%=rs1.getString("solution")%></font></td>
     <td bgcolor="#FFE4CA"><font face="Verdana, Arial, Helvetica, sans-serif" size="1"><%
     Date dp = rs1.getDate("dateofopen");
     String dp1="";
     SimpleDateFormat spdf = new SimpleDateFormat("MM/dd/yyyy");
     dp1 = spdf.format(dp);
     Date tp = rs1.getTime("timeofopen");
     String tp1="";
     SimpleDateFormat stpf = new SimpleDateFormat("HH:mm");
     tp1 = stpf.format(tp);
     String tpm = dp1+" "+tp1;
     out.print(tpm);
     %></font>
</td>
     <td width="5%" bgcolor="#FFFFCC"><font face="Verdana, Arial, Helvetica, sans-serif" size="1"><%
     Date dc = rs1.getDate("dateofclose");
     String dc1="";
     SimpleDateFormat scdf = new SimpleDateFormat("MM/dd/yyyy");
     dc1 = scdf.format(dc);
     Date tc = rs1.getTime("timeofclose");
     String tc1="";
     SimpleDateFormat stcf = new SimpleDateFormat("HH:mm");
     tc1 = stcf.format(tc);
     String tcm = dc1+" "+tc1;
     out.print(tcm);
     %></font>
</td>
     <td width="16%" bgcolor="#FFE4CA"><font face="Verdana, Arial, Helvetica, sans-serif" size="1"><%String remarks = rs1.getString("remarks");
     if(remarks==null){}else{out.print(remarks);}
     %></font></td>
<%}navi.setcursor();
}con.close();}catch(Exception e){out.print(e);}%>
</tr>
</table><br>
<font size="2" face="Verdana, Arial, Helvetica, sans-serif">Back to
Main Menu</font>
</body>
</html>
Code for javaBean:
package arvato.interclarification;
import javax.servlet.http.*;
import java.sql.*;
public class rqchunk
          ResultSet rs=null;
          int chunk=5;
          int count=0;
          int cursor=1;
          public rqchunk(){}
          public void setRS(ResultSet rset) throws SQLException
               rs = rset;
               int cnt=0;
               while(rs.next())
                    cnt++;
               rs.absolute(1);
               count=cnt;
          public void setcursor()throws SQLException
               cursor++;
               rs.absolute(cursor);
          public void setcursor(int i)throws SQLException
               cursor=i;
               rs.absolute(cursor);
          public int getcursor()
               return cursor;
          public int getchunk()
               return chunk;
          public void setchunk(int i)
               chunk=i;
          public void setcount(int j)
               count=j;
          public int getcount()
               return count;
          public ResultSet getRS()
               return rs;
          public void clearRS()
               cursor=0;
               rs=null;
Please excuse me if my codes are not understandable enough
Thanks
Amit

COMMIT problem in TopLink, Struts, JSP and ADF Databinding sample

In the sample Developing a J2EE Application using TopLink, Struts, JSP and ADF Databinding,
I followed all the steps to build a department browse page and a edit page.
But when I get to Step number 23 in "Create a JSP to Edit Departments" I have a problem with the commit.
Only after I make a change in the form and click the sumbit button, the commit and rollback buttons become active. And After I click the commit button the data gets commited to the database but the page inofmation changes to the very first department record, not the current one.
How do I make those buttons active with out the extra click on the submit?
After I click the commit button, how do I keep the current data on the screen?
Thanks for you help.

Shay,
Thanks for the reply.
For #1, I was able to do the following and get away with not having to press submit first. I just removed the bindings for disable. I hope that does not cause any problems?
<input type="submit" name="event_Commit" value="Commit" />
<input type="submit" name="event_Rollback" value="Rollback" />
For #2, How I add an action on an HTML button? My UIModel.xml for the edit department page currently has two actions on it. Commit and RollBack. Is it linked through the "name" attribute of the input tag?

Problem JSP and WebLogic 5.1

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