How to pre-compile a JSP

Hi all,
I struckup with a doubt as fallows
How to pre-compile a JSP to Servlet(.class file) bfore the first request ,so that the first response takes same time as later responses.

Thanx Ram for ur response,
I know Tomcat is assembled with Jasper compiler.My actual doubt is I want to precompile the Jsp bfore the first request. Actually the compilation occurs at the time of first request.U said it is server specific ,can u plz s let me know the pre-compile option for WEBLOGIC Server.

Similar Messages

How to pre-compile JSP?

Does anyone know how to pre-compile JSP so as to get faster browsing response?

I know little about JSPs but from what I can remember, JSPs are compiled first time when they are being asked to be executed .Unless changes are made to those programs they would not be compiled, as a result of that, it would run faster. Correct me if I am wrong though

How to pre-compile jsp and deploy to tomcat

Hi All,
I wuld like to know how to pre-compile JSPs and deploy to tomcat. I am using ANT tool to build and deploy the war file.
Thanks in Advance.
Regards,
--Nagesh.

for Tomcat 5.0 (You'll need to edit to fit your needs)
    <path id="jsp.classpath">
        
        <fileset dir="C:\tomcat\common\lib">
            <include name="**/*.jar"/>
        </fileset>
        <fileset dir="C:/tomcat/common/endorsed">
            <include name="**/*.jar"/>
        </fileset>
    </path>
    <target name="jsp" >
    
    <taskdef name="jspc50" classname="org.apache.jasper.JspC">
        <classpath>
                <path refid="jsp.classpath"/>
        </classpath>
    </taskdef>
    <jspc50 outputDir="${build.classes}"
            package="jsp"
            uriroot="${project.dir}/web/webApp"
            webXmlFragment="c:/web.xml"
            verbose="9"
            validateXml="false">
    </jspc50>
    <javac srcdir="${build.classes}/jsp"
           destdir="${build.classes}"
           debug="true"
           optimize="false"
           includes="**/*.java"
           source="1.4">
            <classpath>
                <path refid="classpath"/>
                <path refid="jsp.classpath"/>
            </classpath>
    </javac>
</target>    More information can be found here :
http://www.onjava.com/pub/a/onjava/excerpt/AntTDG_chap8/index1.html?page=last

How to pre-compile JSF pages?

Hi,
I am new to JSF and would appriciate if any one can help me find out how to pre-compile JSF pages?
Thanks in advance
satsdn

The same way you pre-compile JSP pages: Set it up in your faces-config.xml file.
Here's how I do it:
     <servlet>
          <servlet-name>AcctID</servlet-name>
          <display-name>AcctID</display-name>
          <jsp-file>/AcctID.jsp</jsp-file>
          <load-on-startup>-1</load-on-startup>
     </servlet>Put one of these tags for each JSP you want to pre-compile. The -1 load-on-startup value is important.
CowKing

Pre compiling of jsp

HI,I am using weblogic5.1 and I am unable to pre compile the jsp file. I used java weblgoic.jsc command to compile the files, but I am unable to complie some of the jsp files. Can you suggest me a better way to pre comile files and directories.Thanks,Prakash Appani


If you can compile some, but not others, then it is more than likely that
          you have problems
          with your JSP's. You may want to use the regular javac to compile them.
          # WEBLOGIC JSP PROPERTIES
          # Sets up automatic page compilation for JSP. Adjust init args for
          # directory locations and uncomment to use.
          weblogic.httpd.register.*.jsp=\
          weblogic.servlet.JSPServlet
          weblogic.httpd.initArgs.*.jsp=\
          pageCheckSeconds=1,\
          compileCommand=c:/jdk1.2.2/bin/javac.exe,\
          workingDir=C:/weblogic/myserver/classfiles,\
          verbose=true
          "Mike Reiche" <[email protected]> wrote in message
          news:3b3b91cd$[email protected]..
          >
          > What errors are you getting? The command is
          >
          > java weblogic.jspc <file>
          >
          > Can't tell if you had the wrong command or just bad typing.
          >
          > Mike
          >
          > Prakash Appani <[email protected]> wrote:
          > >HI,I am using weblogic5.1 and I am unable to pre compile the jsp file.
          > >I used java weblgoic.jsc command to compile the files, but I am unable
          > >to complie some of the jsp files. Can you suggest me a better way to
          > >pre comile files and directories.Thanks,Prakash Appani
          >

Pre-Compiled JSP

Hi All,
Can anyone tell me, how to pre-compile jsp and deploy it in Tomcat and Websphere and also how stop the app server recompiling the JSP at runtime. Searched the net for but was not really that successful.

Read the documentation that come along the application server. For Tomcat it's for example this: [http://tomcat.apache.org/tomcat-6.0-doc/jasper-howto.html].

Pre-compile JSPs before deploying

Hi All,
what is the best way to pre-compile my JSPs and then bundle them together into
a .war file, then deploying it ???
I have like 100 jsps that i wanted to precompile and wanted to package them together
into a abc.war file, which i can further deploy to my WLS6.1 server ?
I have another instance of WLS8.1 that i wanted to do the same thing ?
can somebody please advise me something and how to do this ?
This is on Production environment.
-steve

Steve, you're correct, the output jsp .classes are insterted into the war
file if compilation is successful.
"steve" <[email protected]> wrote in message
news:404f7e99$[email protected]..
>
Hi Raja,
Thanks for your reply. does this ant task wlappc compiles the .war fileand then
repackage into the same .war file ?
am i correct ?
please advise .....thx, steve
"Raja" <[email protected]> wrote:
Both option are will work. I am using wlappc ant task to compile my war
file prior
to deployment.
<target name="appc">
<wlappc
source="C:\abc\abc.war"
/>
</target>
Coming to deployment you can either write ant task to deploy using
console.
Example
of ant task for deploying from a windows dev machine into remoteproduction
box.
Admin server need to be running for deploy to be successful.
<target name="sun-deploy">
<wldeploy action="deploy"
source="C:\projects\abc\abc.war"
name="myapp"
user="weblogic"
password="weblogic"
verbose="true"
adminurl="http://xyz:7001"
debug="true"
targets="myserver"
upload="true"
/>
</target>
"steve" <[email protected]> wrote:
Hi All,
what is the best way to pre-compile my JSPs and then bundle them
together
into
a .war file, then deploying it ???
I have like 100 jsps that i wanted to precompile and wanted to package
them together
into a abc.war file, which i can further deploy to my WLS6.1 server?
I have another instance of WLS8.1 that i wanted to do the same thing
can somebody please advise me something and how to do this ?
This is on Production environment.
-steve

Pre-Compile JSPs

I'm trying to pre-compile my JSPs before uploading my war to the app server.
I'm using JDeveloper 10.1.2 to compile my jsps into a .war file. However, when I deploy to the app server, with main_mode (When a JSP Changes) set to Do Nothing, it can't find my compiled JSPs.
The directory where the JSPs are compiled to in the war with Jdeveloper is a .jsps package under WEB-INF/classes.
Should they go elsewhere?

Welp....after some playing around, I found that if the jsps are compiled directly under WEB-INF/classes, it works great
However, I have no idea how to change JDeveloper to tell it not to put the JSPs in the .jsp package. Any ideas?

Pre-Compiling JSPs while deploying a .war file in OC4J instance

Hi,
Is there any way to inform the OC4J instance to pre-compile the jsps in a .war file, while deploying..
Thanks for your responses,
Eshwar

Click on the project.
Open the context menu (right mouse button).
Expand the General item in the left list.
Select the Deployment Profiles item.
Select the deployment profile you need from the right.
Follow the wizard.
--olaf

What is the Advantage and Disadvantage of Pre-Compiled JSP

Hi All,
What is the advantage and disadvantage of using pre-compiled JSP

Pro:
By pre-compiling your JSPs you don't need a java compiler on the server - just a jre.
The result? No java compiler on the server means a potential security hole patched - people can't just write and deploy jsp's willy nilly on the server.
You KNOW that all your JSPs compile before you visit them - because you have compiled them all :-). It won't fail because of a stupid spelling miskate that prevents compilation. That doesn't mean they will run without error of course...
Con:
Compiling the JSPs ties them to a particular server - unless you take the runtime along with them.

Problem with pre-compiling jsp's

          hi,
          we have an .ear running on wls 6.0 sp2.
          Our app has a web component(part of the .ear) as well which has tld's & jsp.We
          are following the struts framework.
          We configured the <jsp-descriptor> element in the weblogic.xml file to pre-compile
          the jsp's..but the server complains of the following
          any suggestions would be appreciated
          ==================================================================================================================================
          <Jan 9, 2002 4:00:06 PM EST> <Error> <HTTP> <[WebAppServletContext(3001228,ppp)]
          failure pre-compiling JSP's
          java.lang.NullPointerException
          at weblogic.servlet.jsp.Jsp2Java.makeReader(Jsp2Java.java:232)
          at weblogic.servlet.jsp.Jsp2Java.outputs(Jsp2Java.java:112)
          at weblogic.utils.compiler.CodeGenerator.generate(CodeGenerator.java:253)
          at weblogic.servlet.jsp.Precompiler.compileOne(Precompiler.java:124)
          at weblogic.servlet.jsp.Precompiler.compile(Precompiler.java:44)
          at weblogic.servlet.internal.WebAppServletContext.precompileJSPs(WebAppServletContext.java:2003)
          at weblogic.servlet.internal.dd.DescriptorLoader.initFromWebApp(DescriptorLoader.java:742)
          at weblogic.servlet.internal.dd.DescriptorLoader.createServletContext(DescriptorLoader.java:359)
          at weblogic.servlet.internal.HttpServer.loadWARContext(HttpServer.java:467)
          at weblogic.servlet.internal.HttpServer.loadWebApp(HttpServer.java:404)
          at weblogic.j2ee.WebAppComponent.deploy(WebAppComponent.java:74)
          at weblogic.j2ee.Application.addComponent(Application.java:133)
          at weblogic.j2ee.J2EEService.addDeployment(J2EEService.java:115)
          at weblogic.management.mbeans.custom.DeploymentTarget.addDeployment(DeploymentTarget.java:327)
          at weblogic.management.mbeans.custom.DeploymentTarget.addDeployment(DeploymentTarget.java:143)
          at weblogic.management.mbeans.custom.WebServer.addWebDeployment(WebServer.java:76)
          at java.lang.reflect.Method.invoke(Native Method)
          at weblogic.management.internal.DynamicMBeanImpl.invokeLocally(DynamicMBeanImpl.java:562)
          at weblogic.management.internal.DynamicMBeanImpl.invoke(DynamicMBeanImpl.java:548)
          at weblogic.management.internal.ConfigurationMBeanImpl.invoke(ConfigurationMBeanImpl.java:285)
          at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1555)
          at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1523)
          at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:439)
          at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:180)
          at $Proxy44.addWebDeployment(Unknown Source)
          at weblogic.management.configuration.WebServerMBean_CachingStub.addWebDeployment(WebServerMBean_CachingStub.java:1012)
          at weblogic.management.mbeans.custom.DeploymentTarget.addDeployment(DeploymentTarget.java:313)
          at weblogic.management.mbeans.custom.DeploymentTarget.addDeployments(DeploymentTarget.java:277)
          at weblogic.management.mbeans.custom.DeploymentTarget.updateServerDeployments(DeploymentTarget.java:232)
          at weblogic.management.mbeans.custom.DeploymentTarget.updateDeployments(DeploymentTarget.java:192)
          at java.lang.reflect.Method.invoke(Native Method)
          at weblogic.management.internal.DynamicMBeanImpl.invokeLocally(DynamicMBeanImpl.java:562)
          at weblogic.management.internal.DynamicMBeanImpl.invoke(DynamicMBeanImpl.java:548)
          at weblogic.management.internal.ConfigurationMBeanImpl.invoke(ConfigurationMBeanImpl.java:285)
          at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1555)
          at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1523)
          at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:439)
          at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:180)
          at $Proxy41.updateDeployments(Unknown Source)
          at weblogic.management.configuration.ServerMBean_CachingStub.updateDeployments(ServerMBean_CachingStub.java:2299)
          at weblogic.management.mbeans.custom.ApplicationManager.startConfigManager(ApplicationManager.java:240)
          at weblogic.management.mbeans.custom.ApplicationManager.start(ApplicationManager.java:122)
          at java.lang.reflect.Method.invoke(Native Method)
          at weblogic.management.internal.DynamicMBeanImpl.invokeLocally(DynamicMBeanImpl.java:562)
          at weblogic.management.internal.DynamicMBeanImpl.invoke(DynamicMBeanImpl.java:548)
          at weblogic.management.internal.ConfigurationMBeanImpl.invoke(ConfigurationMBeanImpl.java:285)
          at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1555)
          at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1523)
          at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:439)
          at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:180)
          at $Proxy33.start(Unknown Source)
          at weblogic.management.configuration.ApplicationManagerMBean_CachingStub.start(ApplicationManagerMBean_CachingStub.java:435)
          at weblogic.management.Admin.startApplicationManager(Admin.java:1033)
          at weblogic.management.Admin.finish(Admin.java:493)
          at weblogic.t3.srvr.T3Srvr.start(T3Srvr.java:429)
          at weblogic.t3.srvr.T3Srvr.run(T3Srvr.java:170)
          at weblogic.Server.main(Server.java:35)
          >
          <Jan 9, 2002 4:00:06 PM EST> <Debug> <HTTP> <Exception thrown while loading ppp:
          weblogic.utils.NestedException: failure pre-compiling JSP's - with nested exception:
          [java.lang.NullPointerException]>
          <Jan 9, 2002 4:00:06 PM EST> <Error> <J2EE> <Error deploying application ppp:
          Could not load ppp>
          <Jan 9, 2002 4:00:06 PM EST> <Info> <HTTP> <[HTTP myserver] Loading web app: wl_management_internal2>
          <Jan 9, 2002 4:00:06 PM EST> <Info> <HTTP> <[HTTP myserver] Loading wl_management_internal2
          from WAR file: C:\engr\project\ppp\.\config\Synchronoss\applications\.wl_temp_do_not_delete\wl_local_comp45831.war>
          <Jan 9, 2002 4:00:06 PM EST> <Info> <HTTP> <[Default WebApp] extracting classfiles
          to C:\engr\project\ppp\.\config\Synchronoss\applications\.wl_temp_do_not_delete\WEB-INF\_tmp_war_myserver_myserver_wl_management_internal2:>
          <Jan 9, 2002 4:00:06 PM EST> <Info> <HTTP> <[Default WebApp] extracted classfiles
          successfully...>
          <Jan 9, 2002 4:00:06 PM EST> <Info> <HTTP> <[WebAppServletContext(6559849,wl_management_internal2)]
          registering JSPServlet with initArgs '[JspConfig: verbose=true,packagePrefix=jsp_servlet,-compiler=javac,compileFlags=,workingDir=C:\engr\project\ppp\.\config\Synchronoss\applications\.wl_temp_do_not_delete\WEB-INF\_tmp_war_myserver_myserver_wl_management_internal2,pageCheckSeconds=1,superclass=null,keepgenerated=false,encoding=null,defaultfilename=index.jsp,noTryBlocks=false]'>
          <Jan 9, 2002 4:00:06 PM EST> <Info> <HTTP> <[WebAppServletContext(6559849,wl_management_internal2)]
          registering classpath servlet with initArgs 'null'>
          <Jan 9, 2002 4:00:06 PM EST> <Info> <HTTP> <[WebAppServletContext(6559849,wl_management_internal2)]
          registering getior servlet with initArgs 'null'>
          <Jan 9, 2002 4:00:06 PM EST> <Info> <J2EE> <Deployed : wl_management_internal2>
          <Jan 9, 2002 4:00:06 PM EST> <Info> <J2EE> <Deployed MailSession named com.bea.wlpi.MailSession>
          <Jan 9, 2002 4:00:06 PM EST> <Info> <HTTP> <Initializing WEB server myserver>
          <Jan 9, 2002 4:00:06 PM EST> <Info> <HTTP> <[HTTP myserver] Loading web app: DefaultWebApp_myserver>
          <Jan 9, 2002 4:00:06 PM EST> <Info> <HTTP> <[HTTP myserver] Loading DefaultWebApp_myserver
          from directory: .\config\Synchronoss\applications\DefaultWebApp_myserver>
          <Jan 9, 2002 4:00:06 PM EST> <Info> <HTTP> <[WebAppServletContext(4157813,DefaultWebApp_myserver)]
          registering JSPServlet with initArgs '[JspConfig: verbose=true,packagePrefix=jsp_servlet,-compiler=javac,compileFlags=,workingDir=C:\engr\project\ppp\.\config\Synchronoss\applications\DefaultWebApp_myserver\WEB-INF\_tmp_war_myserver_myserver_DefaultWebApp_myserver,pageCheckSeconds=1,superclass=null,keepgenerated=false,encoding=null,defaultfilename=index.jsp,noTryBlocks=false]'>
          <Jan 9, 2002 4:00:06 PM EST> <Info> <HTTP> <[WebAppServletContext(4157813,DefaultWebApp_myserver)]
          registering classpath servlet with initArgs 'null'>
          <Jan 9, 2002 4:00:06 PM EST> <Info> <HTTP> <[WebAppServletContext(4157813,DefaultWebApp_myserver)]
          registering getior servlet with initArgs 'null'>


[att1.html]

Failure in pre-compiling JSP's

          Hi,
          I am getting the following error while pre-compiling a jsp (showcode.jsp).
          I am using weblogic 5.1 SP8.
          Wed Oct 24 12:03:09 MDT 2001:<E> <WebAppServletContext-quote> cannot make temp
          directory '/cemr2/dev1/app/examples/j
          sp/tagext/quote/WEB-INF/_tmp_war_quote', will not be able to compile JSPs
          Wed Oct 24 12:03:09 MDT 2001:<I> <WebAppServletContext-quote> checking /showcode.jsp:
          Wed Oct 24 12:03:11 MDT 2001:<E> <WebAppServletContext-quote> failure pre-compiling
          JSP's
          java.io.FileNotFoundException: /cemr2/dev1/app/examples/jsp/tagext/quote/WEB-INF/_tmp_war_quote/examples/jsp/tagext/
          sql/_showcode.java (No such file or directory)
          at java.io.FileOutputStream.open(Native Method)
          at java.io.FileOutputStream.<init>(FileOutputStream.java, Compiled Code)
          at java.io.FileOutputStream.<init>(FileOutputStream.java, Compiled Code)
          at java.io.FileOutputStream.<init>(FileOutputStream.java, Compiled Code)
          at java.io.FileWriter.<init>(FileWriter.java, Compiled Code)
          at weblogic.servlet.jsp.Jsp2Java.makeOutputStream(Jsp2Java.java, Compiled Code)
          at weblogic.utils.compiler.CodeGenerator.generateCode(CodeGenerator.java, Compiled
          Code)
          at weblogic.utils.compiler.CodeGenerator.generate(CodeGenerator.java, Compiled
          Code)
          at weblogic.servlet.jsp.Precompiler.compileOne(Precompiler.java, Compiled Code)
          at weblogic.servlet.jsp.Precompiler.compile(Precompiler.java, Compiled Code)
          at weblogic.servlet.internal.ServletContextImpl.precompileJSPs(ServletContextImpl.java,
          Compiled Code)
          at weblogic.servlet.internal.dd.DescriptorLoader.createServletContext(DescriptorLoader.java,
          Compiled Code)
          at weblogic.t3.srvr.HttpServer.loadWARContext(HttpServer.java, Compiled Code)
          at weblogic.t3.srvr.HttpServer.initServletContexts(HttpServer.java, Compiled
          Code)
          at weblogic.t3.srvr.HttpServer.start(HttpServer.java, Compiled Code)
          at weblogic.t3.srvr.T3Srvr.start(T3Srvr.java, Compiled Code)
          at weblogic.t3.srvr.T3Srvr.main(T3Srvr.java, Compiled Code)
          at java.lang.reflect.Method.invoke(Native Method)
          at weblogic.Server.startServerDynamically(Server.java, Compiled Code)
          at weblogic.Server.main(Server.java, Compiled Code)
          at weblogic.Server.main(Server.java, Compiled Code)


          << cannot make temp directory '/cemr2/dev1/app/examples/j sp/tagext/quote/WEB-INF/_tmp_war_quote',
          will not be >>
          You don't have sufficiend permission to crease directory.
          Thnaks
          Jignesh Patel
          "Sreenivas Kotapati" <[email protected]> wrote:
          >
          >Hi,
          >
          >I am getting the following error while pre-compiling a jsp (showcode.jsp).
          >
          >I am using weblogic 5.1 SP8.
          >
          >Wed Oct 24 12:03:09 MDT 2001:<E> <WebAppServletContext-quote> cannot
          >make temp
          >directory '/cemr2/dev1/app/examples/j
          >sp/tagext/quote/WEB-INF/_tmp_war_quote', will not be able to compile
          >JSPs
          >Wed Oct 24 12:03:09 MDT 2001:<I> <WebAppServletContext-quote> checking
          >/showcode.jsp:
          >Wed Oct 24 12:03:11 MDT 2001:<E> <WebAppServletContext-quote> failure
          >pre-compiling
          >JSP's
          >java.io.FileNotFoundException: /cemr2/dev1/app/examples/jsp/tagext/quote/WEB-INF/_tmp_war_quote/examples/jsp/tagext/
          >sql/_showcode.java (No such file or directory)
          > at java.io.FileOutputStream.open(Native Method)
          > at java.io.FileOutputStream.<init>(FileOutputStream.java, Compiled
          >Code)
          > at java.io.FileOutputStream.<init>(FileOutputStream.java, Compiled
          >Code)
          > at java.io.FileOutputStream.<init>(FileOutputStream.java, Compiled
          >Code)
          > at java.io.FileWriter.<init>(FileWriter.java, Compiled Code)
          > at weblogic.servlet.jsp.Jsp2Java.makeOutputStream(Jsp2Java.java, Compiled
          >Code)
          > at weblogic.utils.compiler.CodeGenerator.generateCode(CodeGenerator.java,
          >Compiled
          >Code)
          > at weblogic.utils.compiler.CodeGenerator.generate(CodeGenerator.java,
          >Compiled
          >Code)
          > at weblogic.servlet.jsp.Precompiler.compileOne(Precompiler.java, Compiled
          >Code)
          > at weblogic.servlet.jsp.Precompiler.compile(Precompiler.java, Compiled
          >Code)
          > at weblogic.servlet.internal.ServletContextImpl.precompileJSPs(ServletContextImpl.java,
          >Compiled Code)
          > at weblogic.servlet.internal.dd.DescriptorLoader.createServletContext(DescriptorLoader.java,
          >Compiled Code)
          > at weblogic.t3.srvr.HttpServer.loadWARContext(HttpServer.java, Compiled
          >Code)
          > at weblogic.t3.srvr.HttpServer.initServletContexts(HttpServer.java,
          >Compiled
          >Code)
          > at weblogic.t3.srvr.HttpServer.start(HttpServer.java, Compiled Code)
          > at weblogic.t3.srvr.T3Srvr.start(T3Srvr.java, Compiled Code)
          > at weblogic.t3.srvr.T3Srvr.main(T3Srvr.java, Compiled Code)
          > at java.lang.reflect.Method.invoke(Native Method)
          > at weblogic.Server.startServerDynamically(Server.java, Compiled Code)
          > at weblogic.Server.main(Server.java, Compiled Code)
          > at weblogic.Server.main(Server.java, Compiled Code)
          >

Pre-compilation

Is it with WLS 4.5.1 possible to automatically pre-compile all JSP pages without having to do it manually for each one of them from the command line?


thank´s a lot for the information. i guess i try out some script some day. in
          case it works just fine i send it over to BEA.
          Martin
          Steve Hoffman wrote:
          > Michael Girdley wrote:
          > > Not out-of-the-box. But, it should be pretty reasonable to read a script
          > > that would think.
          > >
          > > If you do such a thing, I suggest submitting it to our developer site:
          > > developer.BEA.com.
          >
          > This is possible as I did it once when I worked at another company
          > (and therefore don't have access to the work anymore to post to the developer
          > site). However, one thing I want to note if you do try this. The compiled
          > pages contain a check for the .jsp file having changed. This means
          > that the compiled version of the page contains both the full path
          > to the original jsp file as well as the timestamp of the original
          > jsp file. So if you are going to pre-compile pages to move to
          > another server you'll have to make sure the full path is the
          > same on the destination server as where you originally compiled it.
          > You'll also have to preserve the timestamps (assuming both machines
          > are running clocks that are even close) when you tar/mv the files.
          > If either of these don't jive, then the page will re-compile itself
          > because it thinks it's stale (or can't determine for sure if it's stale
          > and err's on the side of caution).
          >
          > Just my $0.02 if you do try this.
          >
          > Steve

Compile & run JSP programm

Salam
How can i Compile & run JSP program?
Slam

You don't directly.
A JSP page runs on a java enabled webserver (eg Tomcat)
You need one of those to run JSP pages.
When you ask for a jsp page from the server, (eg http://localhost:8080/mySite/myjsp.jsp) the webserver translates and compiles it into a servlet and then runs it for you.
Cheers,
evnafets

WAR - how to continue compiling even when compile fails for some jsp's

i am trying to pre-compile all my jsp's and find out all the compilation
          errors in all the jsp's..
          i am defining a war app and i am making the weblogic server to precompile
          the jsp's.. i control this from web.xml
          the problem is
          weblogic starts compiling the jsp's and when it hits the first error it
          bails out.. i doesn't precompile the rest of the jsp's..
          how do i make weblogic server to continue compiling the rest of the jsp's??
          anyone??


You sure can run a Windows Form and while it is visible, run code in the Powershell script, and communicate the information from the 'main' script to the form.
To do this you need create a separate Powershell runspace and dependent on situation either use shared memory and timer in the form or delegates to directly call form elements
Please check my article at codeproject for extensive journey of using all core Windows Forms, WPF, Selenium with Powershell for tasks which often require various option prompts.
http://www.codeproject.com/Articles/799161/Dealing-with-Powershell-Inputs-via-Basic-Windows-F
You find there over 40 common Windows form patterns ( prompts, grids, check/radio boxes, progress bars of many forms, tree views, item lists, passwords, tool tips, system tray widgets, browser controls, examples of using p/invoke, hosting custom controls,
dealing with selenium webdriver, dealing with selenium-unfriendly file upload dialogs etc. ) all covered there - working code for every example is provided, and the code is hosted on github.
Routine daily devops tasks of executing Powershell scripts in a complex environment suddenly become a less challenging task. Web scraping becomes more fun

How to pre-compile a JSP

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