【发布时间】：2014-07-22 09:33:47
【问题描述】：
Struts2 与 JSP
我有一个带有Struts2、JSP 和Tomcat 6.0 的项目
我是Struts2 的新手
当我尝试通过 Struts2 检查 JSP 中的消息时，服务器跟踪中出现错误消息，但我不知道为什么会出现以下错误
SEVERE: Servlet.service() for servlet jsp threw exception
java.lang.ClassNotFoundException: com.opensymphony.xwork2.util.ValueStack
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1680)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526)
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2531)
at java.lang.Class.privateGetPublicMethods(Class.java:2651)
at java.lang.Class.getMethods(Class.java:1467)
at java.beans.Introspector.getPublicDeclaredMethods(Introspector.java:1280)
at java.beans.Introspector.getTargetMethodInfo(Introspector.java:1141)
at java.beans.Introspector.getBeanInfo(Introspector.java:416)
at java.beans.Introspector.getBeanInfo(Introspector.java:163)
at java.beans.Introspector.getBeanInfo(Introspector.java:250)
at java.beans.Introspector.<init>(Introspector.java:397)
at java.beans.Introspector.getBeanInfo(Introspector.java:163)
at org.apache.jasper.compiler.Generator$TagHandlerInfo.<init>(Generator.java:3924)
at org.apache.jasper.compiler.Generator$GenerateVisitor.getTagHandlerInfo(Generator.java:2187)
at org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:1643)
at org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1530)
at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2361)
at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2411)
at org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2417)
at org.apache.jasper.compiler.Node$Root.accept(Node.java:495)
at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2361)
at org.apache.jasper.compiler.Generator.generate(Generator.java:3474)
at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:231)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:354)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:334)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:321)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:592)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:328)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:744)
罐子如下：
asm-3.3
asm-commons-3.3
asm-tree-3.3
struts2-api-2.0.1
struts2-convention-plugin-2.3.16.3
struts2-core-2.3.16.3
【问题讨论】：
标签： struts2