org.apache.jasper.JasperException是什么错？

Question

我下载了compass包并调试他的例子petclinic，无错后部署到tomcat上，结果出错了，请高手指教我的环境： myeclipse 5。5
                eclipse3。2
                jdk 1。4。2
               tomcat5。5
以下是出错情况
  2009-01-06 13:10:46,906 ERROR org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/war].[jsp] - Servlet.service() for servlet jsp threw exception
org.apache.jasper.JasperException: /index.jsp(1,1) The absolute uri: http://www.springframework.org/tags cannot be resolved in either web.xml or the jar files deployed with this application
        at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:40)
        at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407)
        at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:88)
        at org.apache.jasper.compiler.Parser.processIncludeDirective(Parser.java:351)
        at org.apache.jasper.compiler.Parser.parseIncludeDirective(Parser.java:384)
        at org.apache.jasper.compiler.Parser.parseDirective(Parser.java:496)
        at org.apache.jasper.compiler.Parser.parseElements(Parser.java:1568)
        at org.apache.jasper.compiler.Parser.parse(Parser.java:132)
        at org.apache.jasper.compiler.ParserController.doParse(ParserController.java:212)
        at org.apache.jasper.compiler.ParserController.parse(ParserController.java:101)
        at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:156)
        at org.apache.jasper.compiler.Compiler.compile(Compiler.java:296)
        at org.apache.jasper.compiler.Compiler.compile(Compiler.java:277)
        at org.apache.jasper.compiler.Compiler.compile(Compiler.java:265)
        at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:564)
        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:302)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875)
        at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
        at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
        at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
        at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
        at java.lang.Thread.run(Thread.java:534)
2009-01-06 13:10:46,937 ERROR org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/war].[jsp] - Servlet.service() for servlet jsp threw exception
org.apache.jasper.JasperException: /WEB-INF/jsp/uncaughtException.jsp(1,1) The absolute uri: http://www.springframework.org/tags cannot be resolved in either web.xml or the jar files deployed with this application
        at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:40)
        at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407)
        at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:88)
        at org.apache.jasper.compiler.Parser.processIncludeDirective(Parser.java:351)
        at org.apache.jasper.compiler.Parser.parseIncludeDirective(Parser.java:384)
        at org.apache.jasper.compiler.Parser.parseDirective(Parser.java:496)
        at org.apache.jasper.compiler.Parser.parseElements(Parser.java:1568)
        at org.apache.jasper.compiler.Parser.parse(Parser.java:132)
        at org.apache.jasper.compiler.ParserController.doParse(ParserController.java:212)
        at org.apache.jasper.compiler.ParserController.parse(ParserController.java:101)
        at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:156)
        at org.apache.jasper.compiler.Compiler.compile(Compiler.java:296)
        at org.apache.jasper.compiler.Compiler.compile(Compiler.java:277)
        at org.apache.jasper.compiler.Compiler.compile(Compiler.java:265)
        at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:564)
        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:302)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
        at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:679)
        at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
        at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:399)
        at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
        at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:364)
        at org.apache.catalina.core.StandardHostValve.throwable(StandardHostValve.java:213)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875)
        at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
        at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
        at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
        at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
        at java.lang.Thread.run(Thread.java:534)

Answer 1

可能缺少jar包，看看spring的jar包是不是齐全了，如果齐全了，找个tools.jar文件拷贝到tomcat的lib文件夹里面

Answer 2

我将springmvc.jar增加进去之后又出来新问题了。问题如下，怎么办啊2009-01-06 14:04:18,421 ERROR org.springframework.web.context.ContextLoader - Context initialization failed
org.springframework.beans.factory.CannotLoadBeanClassException: Error loading class [org.compass.gps.device.jdbc.mapping.ResultSetToResourceMapping] for bean with name 'petMapping' defined in ServletContext resource [/WEB-INF/applicationContext-jdbc.xml]: problem with class file or dependent class; nested exception is java.lang.UnsupportedClassVersionError: org/compass/gps/device/jdbc/mapping/ResultSetToResourceMapping (Unsupported major.minor version 49.0)
at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1141)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:524)
at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1174)
at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:754)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:422)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:729)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:381)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)
at org.springframework.web.context.ContextLoaderServlet.init(ContextLoaderServlet.java:81)
at javax.servlet.GenericServlet.init(GenericServlet.java:212)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1139)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:966)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3956)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4230)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:760)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:740)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:544)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:927)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:890)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1150)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:120)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1022)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:448)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
Caused by: java.lang.UnsupportedClassVersionError: org/compass/gps/device/jdbc/mapping/ResultSetToResourceMapping (Unsupported major.minor version 49.0)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:539)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1876)
at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:889)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1353)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1232)
at org.springframework.util.ClassUtils.forName(ClassUtils.java:242)
at org.springframework.beans.factory.support.AbstractBeanDefinition.resolveBeanClass(AbstractBeanDefinition.java:383)
at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1135)
... 36 more

Answer 3

从MyEclipse里面加入
Spring 2.0 AOP Libraries
Spring 2.0 Core Libraries
Spring 2.0 Persistence Core Libraries
Spring 2.0 Persistence JDBC Libraries

Answer 4

我已经找到原因了，把方法公布出来：
其实就是jdk的版本问题，我用的jdk1。4不能做，更换了j2ee sdk 5之后就好了

Answer 5

java ee 5默认添加了JSTL的支持，而java ee 4没有

Answer 6

jar包版本出错了，重新换个jar包

Answer 7

呵呵。这个帖子的故事发生在那么久以前，我也发生了这个错误，不过都是我一不小心的。其实是少了Jar包的问题，它说是org.apache.jasper.JasperException:的问题，那就应该跟jasper-compiler.jar包有关的阿。不是少了这个包就是这个包有问题，包括版本之类的。我是加了这个包问题就解决了的。

Answer 8

jasper-compiler.jar包，加到哪？？？

Answer 9

jsp的问题。刚试过了。换了标签就OK了！

Answer 10

我也在JSP连接Derby数据库时遇到了org.apache.jasper.JasperException: java.lang.NullPointerException
错误，目前正在纠结中。

Answer 11

javax.servlet.jsp.JspException: Missing message for key "index.lable"
同样的问题，我也在纠结中。。

Answer 12

 我也遇到这个问题 只需要导入jasper-compiler.jar就可以解决

Answer 13

我也是这个错误，但我的问题原因是，不能访问外网环境，把http://www.springframework.org/tag下载下来，用相对路径访问就OK了！

Answer 14

在jsp页面中，引入jar包<%@ page import="" %>
我出错是因为没有带page

Answer 15

谁帮忙看一下这个错误type Exception reportmessage description The server encountered an internal error () that prevented it from fulfilling this request.exception org.apache.jasper.JasperException
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:372)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
com.bjsxt.shopping.util.filter.IPFilter.doFilter(IPFilter.java:31)
root cause java.lang.NullPointerException
com.bjsxt.shopping.category.CategoryService.getCategories(CategoryService.java:102)
org.apache.jsp.Index_jsp._jspService(Index_jsp.java:84)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
com.bjsxt.shopping.util.filter.IPFilter.doFilter(IPFilter.java:31)

Answer 16

我是因为在第一行language前面加了"content=text/html";charset="gb2312"

Answer 17

严重: Servlet.service() for servlet jsp threw exception
The Struts dispatcher cannot be found.  This is usually caused by using Struts tags without the associated filter. Struts tags are only usable when the request has passed through its servlet filter, which initializes the Struts dispatcher needed for this tag. - [unknown location]
at org.apache.struts2.views.jsp.TagUtils.getStack(TagUtils.java:60)
at org.apache.struts2.views.jsp.StrutsBodyTagSupport.getStack(StrutsBodyTagSupport.java:52)
at org.apache.struts2.views.jsp.ComponentTagSupport.doStartTag(ComponentTagSupport.java:49)
at org.apache.jsp.login.login_jsp._jspx_meth_s_005fform_005f0(login_jsp.java:129)
at org.apache.jsp.login.login_jsp._jspService(login_jsp.java:99)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:388)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:291)
at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:877)
at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:594)
at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1675)
at java.lang.Thread.run(Unknown Source)这是什么问题？请高手帮忙

Answer 18

请教一下7楼所说的java ee是指的从www.java.com首页上下载的那种JDK，还是从http://www.oracle.com/technetwork/cn/java/javaee/downloads/index.html上下载的Java EE 6 Development Kit ？

Answer 19

我用的是eclipse，重新建一个tomcat Server就OK了

Answer 20

我运行版本在windows下没问题，在linux下就报这个错很郁闷啊。

Answer 21

我也遇到了这个异常，
原因是我在import语句的“=”两边敲了空格键

Answer 22

Hibernate: select this_.id as id5_1_, this_.createTime as createTime5_1_, this_.email as email5_1_, this_.enable as enable5_1_, this_.password as password5_1_, this_.groupid as groupid5_1_, this_.username as username5_1_, usergroup2_.id as id6_0_, usergroup2_.createTime as createTime6_0_, usergroup2_.groupName as groupName6_0_ from t_user this_ left outer join t_usergroup usergroup2_ on this_.groupid=usergroup2_.id where this_.email=?
2012-8-13 0:27:56 org.apache.catalina.core.ApplicationDispatcher invoke
严重: Servlet.service() for servlet jsp threw exception
org.apache.jasper.JasperException: /WEB-INF/content/message/list-success.jsp(17,7) Expecting "jsp:param" standard action with "name" and "value" attributes
at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:41)
at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407)
at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:88)
at org.apache.jasper.compiler.Parser.parseParam(Parser.java:825)
at org.apache.jasper.compiler.Parser.parseBody(Parser.java:1670)
at org.apache.jasper.compiler.Parser.parseOptionalBody(Parser.java:1002)
at org.apache.jasper.compiler.Parser.parseInclude(Parser.java:854)
at org.apache.jasper.compiler.Parser.parseStandardAction(Parser.java:1116)
at org.apache.jasper.compiler.Parser.parseElements(Parser.java:1449)
at org.apache.jasper.compiler.Parser.parse(Parser.java:138)
at org.apache.jasper.compiler.ParserController.doParse(ParserController.java:239)
at org.apache.jasper.compiler.ParserController.parse(ParserController.java:102)
at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:197)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:372)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:352)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:339)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:594)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:344)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:391)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:471)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:402)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:329)
at org.apache.struts2.dispatcher.ServletDispatcherResult.doExecute(ServletDispatcherResult.java:157)
at org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:186)
at com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:374)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:278)
at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:256)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249)
at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:176)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249)
at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:265)
at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249)
at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:138)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249)
at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:211)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249)
at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:211)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249)
at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:190)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249)
at org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:75)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249)
at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:90)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249)
at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:243)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249)
at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)
哪位仁兄帮忙看下，以前用<jsp:include page="../include/top.jsp">
   <c:param name="tag" value="messages"></c:param>
   </jsp:include>还好好的呢。

Answer 23

<%@ page language="java" contentType="text/html; charset=GBK"
pageEncoding="UTF-8"%>配错了也会出现这个问题，我的就是这样的

Answer 24

我的是<%@ page import=java.io.* %>
没写双引号 所以报这个错误 应该是<%@ page import="java.io.*" %> 你试下是不是这个错误