Debug JSP file

Hi,
Is there any tool to debug the JSP files? I want to debug my JSP how to do it? Please clarify.
Thanks.

gimbal2 wrote:
ramp wrote:
But then there are millions of already written jsps out there already and to debug those, I use MyEclipse. It needs a paid license though.A license that needs to be renewed yearly, right?
Yes, 30$ or thereabouts. I do not have to pay for it though ;)
I wouldn't pay for a tool just to be able to debug JSPs though ;) I'll just work with System.out or a logger to trace where stuff goes wrong.We used to do that before we convinced the management that we work for that it really saves huge time (money and productivity)
Its a life saver for us :). The jsps are sometimes 500 lines long (no dont kill me, I did not write those. Just have to maintain them :( ) and I shudder to think of those dark days where we kept adding incremental sysouts, then do a build and watch the stack trace. Sometimes the server did not pick up the jsp changes and a restart was needed ( more shudder :) )
ram.
Edit: Just wanted to add that it needs some setup and is not for the faint hearted

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Please check following MOS Document
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Rep-1247 error when starting jsp file on linux

I have a rather frustrating problem on our production servers...
We are trying to start jsp files on a linux report server (10Gr2).
The command is displayed below
[2007/10/8 10:57:59:853] Info 50132 (EngineImpl:setCommandLine): Get command line: baseUrl=http://xxxxx:7777/reports/rwservlet/getfile/ userid=reporting@SHARED_BE USER_AGENT=Java/1.5.0_07 SERVER_NAME=xxxxxxxxx jobname="/opt/ogreports/catalog/SMC/BE-Shared/xxxx.jsp" destpath="/var/data/og/dashboard/van/sgs/001/reports/xx" getFilestr=/no> imagekey=reports9i par_end_date="01-10-2007" desname=xxxxxxxxxxx.pdf REMOTE_ADDR=127.0.0.1 SERVER_PROTOCOL=HTTP/1.1 authid=RWUser par_start_date="01-09-2007" destype=rcpfile REMOTE_HOST=127.0.0.1 SERVER_PORT=7777 CONTENT_TYPE=application/x-www-form-urlencoded report="/opt/ogreports/catalog/SMC/BE-Shared/xxx.jsp" expiredays=0 baseimageurl=http://xxxxx:7777/reports/rwservlet/getfile/HW/YX+JkD0HSAcVLzaSGilrWNAn36ufghgStsvQqfNFC7w== schedule="00:00 Oct 08, 2007" scphost="lion" desformat=pdf SCRIPT_NAME=/rwservlet par_id_project="1750"
The after paramform does some major data manipulations, writing to temporary tables (on commit preserve rows), that are used in queries from the reports.
This seems to go allright. The setup of all queries, program units etc passes as well. But when the report has to start formatting, I get a "1247 Program Unit not compiled" error message. This is an excerpt from the engine trace
[2007/10/8 11:40:40:243] Debug 50103 (EngineImpl:getCacheData): Start
[2007/10/8 11:40:40:243] Debug 50103 (EngineImpl:getCacheData): m_jobId = 9182
[2007/10/8 11:40:40:244] Debug 50103 (EngineImpl:getCacheData): Quit
[2007/10/8 11:40:40:534] Error 50103 (C Engine): 10:40:40 ERR REP-1247: Report contains uncompiled PL/SQL.
[2007/10/8 11:40:40:535] Error 50103 (rwfdt:rwfdtprint): 10:40:40 ERR Error occurred sending Job output to cache
[2007/10/8 11:40:40:536] Error 50103 (rwfdt:rwfdtfl_FreeDistList): running
[2007/10/8 11:40:40:536] Error 50103 (rwfdt:rwfdtfl_FreeDistList): quit
[2007/10/8 11:40:40:580] Debug 50103 (EngineImpl:run): CRunReport returns: 1247
[2007/10/8 11:40:40:608] Debug 50103 (EngineImpl:run): Quit
[2007/10/8 11:40:40:699] Exception 1247 (): Report contains uncompiled PL/SQL.
oracle.reports.RWException: IDL:oracle/reports/RWException:1.0
at oracle.reports.engine.EngineImpl.run(EngineImpl.java:447)
at oracle.reports.engine._EngineClassImplBase._invoke(_EngineClassImplBase.java:90)
at com.sun.corba.se.internal.corba.ServerDelegate.dispatch(ServerDelegate.java:353)
at com.sun.corba.se.internal.iiop.ORB.process(ORB.java:280)
at com.sun.corba.se.internal.iiop.RequestProcessor.process(RequestProcessor.java:81)
at com.sun.corba.se.internal.orbutil.ThreadPool$PooledThread.run(ThreadPool.java:106)
I know that 1247 normally covers up another error, but I don't seem to get it....
Funny thing is, when copying the jsp's to another reports server, they do run (on the same DB).
Message was edited by:
user599601

I have a rather frustrating problem on our production servers...
We are trying to start jsp files on a linux report server (10Gr2).
The command is displayed below
[2007/10/8 10:57:59:853] Info 50132 (EngineImpl:setCommandLine): Get command line: baseUrl=http://xxxxx:7777/reports/rwservlet/getfile/ userid=reporting@SHARED_BE USER_AGENT=Java/1.5.0_07 SERVER_NAME=xxxxxxxxx jobname="/opt/ogreports/catalog/SMC/BE-Shared/xxxx.jsp" destpath="/var/data/og/dashboard/van/sgs/001/reports/xx" getFilestr=/no> imagekey=reports9i par_end_date="01-10-2007" desname=xxxxxxxxxxx.pdf REMOTE_ADDR=127.0.0.1 SERVER_PROTOCOL=HTTP/1.1 authid=RWUser par_start_date="01-09-2007" destype=rcpfile REMOTE_HOST=127.0.0.1 SERVER_PORT=7777 CONTENT_TYPE=application/x-www-form-urlencoded report="/opt/ogreports/catalog/SMC/BE-Shared/xxx.jsp" expiredays=0 baseimageurl=http://xxxxx:7777/reports/rwservlet/getfile/HW/YX+JkD0HSAcVLzaSGilrWNAn36ufghgStsvQqfNFC7w== schedule="00:00 Oct 08, 2007" scphost="lion" desformat=pdf SCRIPT_NAME=/rwservlet par_id_project="1750"
The after paramform does some major data manipulations, writing to temporary tables (on commit preserve rows), that are used in queries from the reports.
This seems to go allright. The setup of all queries, program units etc passes as well. But when the report has to start formatting, I get a "1247 Program Unit not compiled" error message. This is an excerpt from the engine trace
[2007/10/8 11:40:40:243] Debug 50103 (EngineImpl:getCacheData): Start
[2007/10/8 11:40:40:243] Debug 50103 (EngineImpl:getCacheData): m_jobId = 9182
[2007/10/8 11:40:40:244] Debug 50103 (EngineImpl:getCacheData): Quit
[2007/10/8 11:40:40:534] Error 50103 (C Engine): 10:40:40 ERR REP-1247: Report contains uncompiled PL/SQL.
[2007/10/8 11:40:40:535] Error 50103 (rwfdt:rwfdtprint): 10:40:40 ERR Error occurred sending Job output to cache
[2007/10/8 11:40:40:536] Error 50103 (rwfdt:rwfdtfl_FreeDistList): running
[2007/10/8 11:40:40:536] Error 50103 (rwfdt:rwfdtfl_FreeDistList): quit
[2007/10/8 11:40:40:580] Debug 50103 (EngineImpl:run): CRunReport returns: 1247
[2007/10/8 11:40:40:608] Debug 50103 (EngineImpl:run): Quit
[2007/10/8 11:40:40:699] Exception 1247 (): Report contains uncompiled PL/SQL.
oracle.reports.RWException: IDL:oracle/reports/RWException:1.0
at oracle.reports.engine.EngineImpl.run(EngineImpl.java:447)
at oracle.reports.engine._EngineClassImplBase._invoke(_EngineClassImplBase.java:90)
at com.sun.corba.se.internal.corba.ServerDelegate.dispatch(ServerDelegate.java:353)
at com.sun.corba.se.internal.iiop.ORB.process(ORB.java:280)
at com.sun.corba.se.internal.iiop.RequestProcessor.process(RequestProcessor.java:81)
at com.sun.corba.se.internal.orbutil.ThreadPool$PooledThread.run(ThreadPool.java:106)
I know that 1247 normally covers up another error, but I don't seem to get it....
Funny thing is, when copying the jsp's to another reports server, they do run (on the same DB).
Message was edited by:
user599601

The best way to solve problem with the site containing JSP Files java co

I am getting NullPointerException pointing at some java file but I have the same JSP file of that name.
and which line it is pointing it is not there in that file means file has 500 lines and it ponting to 700.
I got this information from log file but I cannot get the exact line where the error is coming from.
Can I arrange all code of site according to Netbeans, so that I can complile and run everything to get the problems solved.
I don't know how to proceed?
And one more thing the results on web sites are comimg very slow , any suggetions to improve the performance
I am working on a undocumented code left inbetween by some one and new in real time coding.

JSP pages compile dynamically into Servlets when requested. The error line number you got corresponds to line number of this dynamically generated Servlet not the jsp page. If you are using Apache Tomcat, these dynamically generated files should be located somewhere inside Work Folder. Anyway, you need to debug your jsp page. some line in this particular jsp page is throwing NullPointerException.

Jsp files displaying a blank page

Hi I have integrated tomcat5 and Apache 2 using mod_jk in Fedora 7.
I had no problem starting Tomcat5 and Apache 2 server. The problem is when I tried to browse my
jsp file.. it display a blank page. I try to see the log files but there is no error related to this.
here is my jsp file..
<%@ page contentType="text/html; charset=iso-8859-1" language="java" errorPage="" %>
<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>Hello World JSP</title>
</head>
<body>
<h1><% out.println(" Hello world JSP!"); %></h1>
</body>
</html>please help me.. Thanks in advance for your help..

here is my new HelloWorld.jsp..
<%@ page contentType="text/html; charset=iso-8859-1" language="java" errorPage="" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>Hello World JSP</title>
</head>
<body>
<h1><% out.println(" Hello world JSP!"); %></h1>
</body>
</html>
it still display a blank page.
here is my context path..declared in server.xml
<Context path="" docBase="/var/www/myweb" debug="0" reloadable="true"/>
My HelloWorld.jsp is save in /var/www/myweb
what is the problem? thanks..

Debugging JSPs using Visual Cafe

          I am using WL 5.1 and trying to figure out how to debug JSPs using Visual Cafe 4.0.(Enterprise Edition). The JSP file is running fine if I use plain "javac" for compilation. If I change the compiler to include -g option (for debug), I get the following error.
          Thu Aug 31 15:46:37 CDT 2000:<E> <ServletContext-General> Servlet failed with Exception
          java.lang.NumberFormatException: error=2
          at java.lang.Integer.parseInt(Integer.java:409)
          at java.lang.Integer.parseInt(Integer.java:458)
          at weblogic.servlet.jsp.JspStub.compilePage JspStub.java:303)
          at weblogic.servlet.jsp.JspStub.prepareServlet(JspStub.java:174)
          at weblogic.servlet.jsp.JspStub.checkForReload(JspStub.java:92)
          at weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.
          java:168)
          at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
          pl.java:99)
          at weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
          textImpl.java:742)
          at weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
          textImpl.java:686)
          at weblogic.servlet.internal.ServletContextManager.invokeServlet(Servlet
          ContextManager.java:247)
          at weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.jav
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          at weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:261)
          at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
          weblogic.properties
          weblogic.httpd.initArgs.*.jsp=\
                    pageCheckSeconds=1,\
                    compileCommand=C:/VisualCafeEE/java2/bin/javac.exe -g,\
                    workingDir=C:/weblogic/myserver/classfiles,\
                    verbose=true
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          Thanks
          Sree Pillai


assuming you are running on Windows, you can use a .cmd file with the
          following command in it
          javac -g %*
          if you name it c:/java/bin/javac.cmd, then replace the line with
          compileCommand=C:/java/bin/javac.cmd,\
          Barry
          Sree <[email protected]> wrote in message
          news:[email protected]...
          >
          > I am using WL 5.1 and trying to figure out how to debug JSPs using Visual
          Cafe 4.0.(Enterprise Edition). The JSP file is running fine if I use plain
          "javac" for compilation. If I change the compiler to include -g option (for
          debug), I get the following error.
          >
          > Thu Aug 31 15:46:37 CDT 2000:<E> <ServletContext-General> Servlet failed
          with Exception
          > java.lang.NumberFormatException: error=2
          > at java.lang.Integer.parseInt(Integer.java:409)
          > at java.lang.Integer.parseInt(Integer.java:458)
          > at weblogic.servlet.jsp.JspStub.compilePage JspStub.java:303)
          > at weblogic.servlet.jsp.JspStub.prepareServlet(JspStub.java:174)
          > at weblogic.servlet.jsp.JspStub.checkForReload(JspStub.java:92)
          > at
          weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.
          > java:168)
          > at
          weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
          > pl.java:99)
          > at
          weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
          > textImpl.java:742)
          > at
          weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
          > textImpl.java:686)
          > at
          weblogic.servlet.internal.ServletContextManager.invokeServlet(Servlet
          > ContextManager.java:247)
          > at
          weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.jav
          > a:361)
          > at
          weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:261)
          >
          > at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
          >
          >
          >
          > weblogic.properties
          > -------
          > weblogic.httpd.initArgs.*.jsp=\
          > pageCheckSeconds=1,\
          > compileCommand=C:/VisualCafeEE/java2/bin/javac.exe -g,\
          > workingDir=C:/weblogic/myserver/classfiles,\
          > verbose=true
          > --------------
          >
          >
          > If I don't use -g option, the page gets displayed correctly. Any help
          would be appreciated.
          >
          > Thanks
          > Sree Pillai

Debugging JSPs and inspecting variables

I've got the debugger running in a jsp, the breakpoints trigger but I can't inspect/watch/view any variables - it just prints up a question mark. This makes the debugger a bit pointless.
I used to be able to see them, and I've looked all through the project properties - run debug settings but nothing stands out. I'm putting the breakpoint in the .jsp file - I've tried it in the _java file and it doesn't trigger.
I'm on jdeveloper 10.1.3.1.0.3984 /windows xp sp2/jdk 1.5
Anyone know how to get this back working? It works fine in normal java files

Same problem I've been hoping for an answer to in my thread at http://technet.oracle.com:89/ubb/Forum2/HTML/006620.html -- I'd really like to see someone from Oracle comment on this as these problems developing jsps in JDeveloper are a huge problem. That's what's keeping me using JBuilder right now.

Can I debug jsp in eclipse ?

I am using wtp eclipse and I want to debug jsp please guide me how to ?

Yes, just the same way as you do with normal Java classes. Run the server in debug modus and put breakpoints in the source file.
But do you have business logic (scriptlets?) in your JSP then? I'd to put them in separate Java classes (Servlet, Bean, DAO, Utility, etc). It will greatly ease unit testing and debugging (and also maintenance!).

IDE for debugging JSPs?...

Please help, anyone know of a good IDE for debugging JSPs? are there any
          that may be freeware?


Try converting the .jsp files to Java files then compiling to .class files
          and deploying as Servlets. Then you can easily debug with any debugger
          supporting WL.
          Peace,
          Cameron Purdy
          Tangosol, Inc.
          http://www.tangosol.com
          +1.617.623.5782
          WebLogic Consulting Available
          "Manoj" <[email protected]> wrote in message
          news:3b02fe33$[email protected]..
          > Please help, anyone know of a good IDE for debugging JSPs? are there
          any
          > that may be freeware?
          >
          >

Can't find the imported java class when run .jsp file

Hi,
I want to run a jsp web application using tomcat. I put all my .jsp files under "TOMCAT_HOME/webapps/junmin" directory, and put all .class files under "TOMCAT_HOME/webapps/junmin/WEB-INF/classes" directory. I set up TOMCAT_HOME AND JAVA_HOME already. But when I type in the address like below:
http://db1.acad.emich.edu:8080/junmin/login.jsp
The IE will give me error msg indicating that it can't find all the .class files which I imported them in login.jsp file.
So, does anyone know that if I miss some configuration in order to let the .jsp file recognize the .class files. Thanks a lot!
Sincerely, Junmin

Ha, this might be the reason.
Can I add sth like this:
<Context path="/junmin" docbase="junmin" debug=0 reloadable=true>
</Context>
But in my local computer, I didn't add this <Context> either. It works well.
Thanks a lot! I will ask the administrator to try this.
And will write down the reason.
Sincerely, Junmin

Exception-Error when excecuting JSP-File in Crystal reports for Eclipse

Hi,
I have created a jsp-File from an rpt-File in Crystal report for Eclipse. When I start the jsp-File on Apache Tomact 5.5 then only errors occurs.
Coud anyone help me?
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 6 in the generated java file
Only a type can be imported. com.crystaldecisions.report.web.viewer.CrystalReportViewer resolves to a package
An error occurred at line: 7 in the generated java file
Only a type can be imported. com.crystaldecisions.reports.sdk.ReportClientDocument resolves to a package
An error occurred at line: 8 in the generated java file
Only a type can be imported. com.crystaldecisions.sdk.occa.report.application.OpenReportOptions resolves to a package
An error occurred at line: 9 in the generated java file
Only a type can be imported. com.crystaldecisions.sdk.occa.report.lib.ReportSDKExceptionBase resolves to a package
An error occurred at line: 10 in the generated java file
Only a type can be imported. com.crystaldecisions.sdk.occa.report.reportsource.IReportSource resolves to a package
An error occurred at line: 13 in the jsp file: /Bericht1-viewer.jsp
ReportClientDocument cannot be resolved to a type
10:      try catch (ReportSDKExceptionBase e)
60:
An error occurred at line: 58 in the jsp file: /Bericht1-viewer.jsp
e cannot be resolved
55:
56:
57:      } catch (ReportSDKExceptionBase e)
60:
61: %>
Stacktrace:
     org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:93)
     org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)
     org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:435)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:298)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:277)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:265)
     org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:564)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:302)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
note The full stack trace of the root cause is available in the Apache Tomcat/5.5.26 logs.
Apache Tomcat/5.5.26
Bericht1.jsp:
<%@page import="com.crystaldecisions.report.web.viewer.CrystalReportViewer,
com.crystaldecisions.reports.sdk.ReportClientDocument,
com.crystaldecisions.sdk.occa.report.application.OpenReportOptions,
com.crystaldecisions.sdk.occa.report.lib.ReportSDKExceptionBase,
com.crystaldecisions.sdk.occa.report.reportsource.IReportSource"%><%
     // This sample code calls methods from the JRCHelperSample class, which
     // contains examples of how to use the BusinessObjects APIs. You are free to
     // modify and distribute the source code contained in the JRCHelperSample class.
     try {
          String reportName = "Bericht1.rpt";
          ReportClientDocument clientDoc = (ReportClientDocument) session.getAttribute(reportName);
          if (clientDoc == null) {
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               // tag can be removed to open the reports as Java resources or using an absolute path
               // (absolute path not recommended for Web applications).
               clientDoc = new ReportClientDocument();
               // Open report
               clientDoc.open(reportName, OpenReportOptions._openAsReadOnly);
               // Store the report document in session
               session.setAttribute(reportName, clientDoc);
               // ****** BEGIN CONNECT CRYSTALREPORTPAGEVIEWER SNIPPET ****************
                    // Create the CrystalReportViewer object
                    CrystalReportViewer crystalReportPageViewer = new CrystalReportViewer();
                    //     set the reportsource property of the viewer
                    IReportSource reportSource = clientDoc.getReportSource();
                    crystalReportPageViewer.setReportSource(reportSource);
                    // set viewer attributes
                    crystalReportPageViewer.setOwnPage(true);
                    crystalReportPageViewer.setOwnForm(true);
                    // Apply the viewer preference attributes
                    // Process the report
                    crystalReportPageViewer.processHttpRequest(request, response, application, null);
               // ****** END CONNECT CRYSTALREPORTPAGEVIEWER SNIPPET ****************
     } catch (ReportSDKExceptionBase e) {
         out.println(e);
%>
Thanks
Arnold

According to the release notes, for the JRCHelperSample to compile, you must set the target runtime for the project.
To do this, either create a project from scratch that uses the Tomcat 5.5 target runtime, or go to the properties menu and ensure that the target runtime is set to the application server you will be using.

Import statement in .java files and .jsp files

Guys I have few mysteries about this import statement.
Please correct me if I am wrong.
1)Suppose if I have a folder c:\SourceFolder it has one.java and two.java files.If I compile one.java then one.class files is created in c:\ClassFolder .Now two.java uses one of the method of one.java,and without using import statement I am able to compile two.java, and two.class file is created in c:\ClassFolder.I assume that the path of one.class was taken from the CLASSPATH environment variable,hence I there was no need for import statement .........am i right ?
BUT... in My.jsp,which is in C:\JspFolder, if I want to use one.class,then I have to specifically import the class I want to use.That is i have to say
<%@page import="one"%>
and since the classpath is C:\ClassFolder ,it finds one.class in the C:\ClassFolder.(Note that My.class is created in a folder different from c:\ClassFolder )
But I am wondering why was there no need for me to import one.class in two.java.
(Note I am using JDeveloper and Apache server)
Please help.
In this case the pSo I am wondering in JSP why it doesn't take the class I am looking for from the classpath .
Help.

You have to understand Java scoping rules. In the 1st scenario with the two Java files I am guessing neither one of them begins with a package statement. This means that they belong to the default package. When you compile the compiler uses the classpath to resolve method calls looking in the default package since there was no import statement specified in two.java. JSP is a little different. Now I just read this here in these forums a couple of days ago. Since the classfiles generated from the JSP files are not in the CLASSPATH they are loaded by a different classloader. This is why you have to import all references to all classes in the default package.

Java class bean can not access to DB in JSP file

Hi, I wrote a java class bean in order to access to MySql database ,and this bean is used in a JSP file,so that the bean can query from DB and then display the queried information on the JSP file,but it can not work correctly,the following is the source code and error message popup by the system,
does anybody has experience in solving thus question,Please reply ,Thank you for your help.
%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ page import = "java.sql.*" %>
<jsp:useBean id="conn" scope="page" class="news.conn"/>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>1</title>
<style>

</style>
</head>
<body>
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse" bordercolor="#111111" width="100%" id="AutoNumber1">
<tr>
<td width="100%">
<img border="0" src="images/ruanjian.jpg" width="770" height="154"></td>
</tr>
<tr>
<td width="100%">@</td>
</tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse" bordercolor="#111111" width="100%" id="AutoNumber2">
<tr>
<td width="13%">@</td>
<td width="87%">
<img border="0" src="images/mid-rdxw2.gif" width="101" height="18"><p>
<%
          ResultSet rs,rsNest;
String strSql=null;
strSql = "select * from news where TYPE=1";
          rs = conn.executeQuery(strSql);
          while (rs.next()){
%>
<span class="s"> <a href="newsContent.jsp?newsId=<%=rs.getInt(id")%">"><%=rs.getString("Title")%></a><br>
<%
%>
<p>
<img border="0" src="images/mid-hyxw2.gif" width="94" height="19"></p>
<%
strSql="select * from news where TYPE=2";
          rs = conn.executeQuery(strSql);
          while (rs.next()){
%>
<span class="s"> <a href="newsContent.jsp?newsId=<%=rs.getInt("id")%>"><%=rs.getString("Title")%></a><br>
<%
%>
<p>@</td>
</tr>
</table>
<p align="center">Study Online</p>
<p align="center">@</p>
</body>
</html>
Error message:
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Exception in JSP: /newsMain.jsp:47
44: strSql = "select * from news where TYPE=1";
45:           rs = conn.executeQuery(strSql);
46:
47:           while (rs.next()){
48:
49: %>
50:
Stacktrace:
     org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:451)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:373)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
root cause
java.lang.NullPointerException
     org.apache.jsp.newsMain_jsp._jspService(newsMain_jsp.java:98)
     org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
note The full stack trace of the root cause is available in the Apache Tomcat/5.5.27 l</a>

nogoodatcoding wrote:
Tolls wrote:
Is that Jasper Exception telling us where the problem is in the jsp, though?
If it is, then "rs" is null in the call rs.next()...which means conn.executeQuery() is returning null. Which means that whatever class conn is (news.conn?) has a problem maybe?That's possible. Though, it may just be the case that the 'conn' object itself is null! That line is the first place where it's being used and there are no checks that I can see...we'll have to wait for the OP to investigate and reply I guess.That's what I originally thought, then I noticed it was saying line 47, which is the rs.next() line. Assuming Jasper is correct in its choice of line, then it's the rs that's null. Which means the conn is doing strange things.
Edit: Now that I think about it, going by the previous thread the OP posted, I'm wondering whether news.conn class is their attempt to move the JDBC stuff out of the JSP page, and it's grabbing the "real" connection (java.sql.Connection) and getting the result set and returning it...or getting something wrong and returning null.
Edited by: Tolls on 11-Jun-2009 12:24

Relative Path for JSP Files

I use Liferay Portal. It has a defined directory structure for all portlets and expects files to be in their proper locations. One of these is that it expects all .jsp files to be in the /webroot/html directory.
The problem is that all references in the struts-config.xml to .jsp files are assumed to be relative to the /html directory. So if, for instance, I set the path as /test/test.jsp then Liferay looks for the file in /html/test/test.jsp. But NitroX requires the full path, including the /html.
I've gotten this to work on another competing product - in that product I set the Web Root to be the /html directory and it works great. That product allows you to set the path of the struts-config.xml separately. Is there any way to do something similar with NitroX? I tried changing the webroot in the .m7project file manually but it doesn't like it. It seems to insist that the struts-config.xml file is in the webroot.
Thanks.

NitroX currently supports only a war directory structure. When a project is created, the Web Application Root directory is computed as the directory containing the WEB-INF folder (which should contain the web.xml file).
All web app resources (JSP files, image, css files, etc) are expected to be under the Web Application Root directory (at any nested directory level).
We will enhance this behavior in the future to support arbitrary directory structures.

Need help in using SQL in a jsp file to compare date and time

hi every one,
Actually I am doing a project using JSP. I need to compare a date field in the database (MS Acess) to the current system date and time. I have to do this in a select statement.
I have alredy defined a variable of type Date in the JSP file and I am comparing this variable to the date in the database through a select statemant.
Here is what I am doing
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-mm-dd hh:mm:ss");
java.util.Date today = new java.util.Date();
String myDate=sdf.format(today);
query = "SELECT Car_ID, Model_ID, Year, Ext_Color, Price from Cars where EDate <= "+myDate+" ;";
EDate is the feild in the database and it's format is (5/12/2008 5:29:47 PM) it is of type Date/Time in MS Acess.
when I execute the query it gives the following error
SQL error:java.sql.SQLException: [Microsoft][ODBC Microsoft Access Driver] Syntax error (missing operator) in query expression 'EDate <= 2008-10-16 08:10:07'.
I hope any one can help me with that error and answer my question, I've tried too many things but nothing helps
Thanks in advance :-)

Hi,
When the comparision is needed to be done with the current date , we don't need to send in Java
Date then format it and compare with MS Acess Date.
In MS Access we have Date() function which will give you the current date.
So you can try rewriting your query as following :
query = "SELECT Car_ID, Model_ID, Year, Ext_Color, Price from Cars where EDate <= Date() ;"; ---------------------
Hope this helps.
Thanks

Debug JSP file

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