JSTL can't resolve

when run the jsp file,there is error appear
org.apache.jasper.JasperException: The absolute uri: http://java.sun.com/jsp/jstl/core cannot be resolved in either web.xml or the jar files deployed with this application
     at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:94)
     at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:365)
     at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:151)
     at org.apache.jasper.compiler.TagLibraryInfoImpl.generateTLDLocation(TagLibraryInfoImpl.java:343)
     at org.apache.jasper.compiler.TagLibraryInfoImpl.(TagLibraryInfoImpl.java:170)
     at org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:456)
     at org.apache.jasper.compiler.Parser.parseDirective(Parser.java:517)
     at org.apache.jasper.compiler.Parser.parseElements(Parser.java:1567)
     at org.apache.jasper.compiler.Parser.parse(Parser.java:174)
     at org.apache.jasper.compiler.ParserController.parse(ParserController.java:254)
     at org.apache.jasper.compiler.ParserController.parse(ParserController.java:154)
     at org.apache.jasper.compiler.ParserController.parse(ParserController.java:140)
     at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:250)
     at org.apache.jasper.compiler.Compiler.compile(Compiler.java:458)
     at org.apache.jasper.compiler.Compiler.compile(Compiler.java:444)
     at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:603)
     at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:300)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:293)
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:240)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:286)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
     at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:562)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:974)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:205)
     at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:562)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:974)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:177)
     at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
     at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)
     at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:149)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
     at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:149)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:562)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:974)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:156)
     at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:562)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:974)
     at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:203)
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:637)
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:484)
     at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:568)
     at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:631)
     at java.lang.Thread.run(Thread.java:534)

you shouldn't need to specify the taglib stuff in
web.xml, but you do need to make sure the URI matches
the version of the JSTL you are using.
For JSTL 1.0 (Tomcat <5), you would use the URI you
have (http://java.sun.com/jsp/jstl/core), but for JSTL
1.1 (Tomcat 5+), use http://java.sun.com/jstl/core
instead.
that should do it.....er... you have those URIs around the wrong way:
1.0 = http://java.sun.com/jstl/core (JSP1.2)
1.1 = http://java.sun.com/jsp/jstl/core (JSP2.0 container = Tomcat 5)
When it was upgraded to 1.1 it was more closely integrated with JSP - and is actually part of the JSP2.0 spec. Hence the addition of the /jsp/ to the path.
You do have standard.jar and jstl.jar sitting in your web-inf/lib directory don't you?
Cheers,
evnafets

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JSTL can't resolve

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