java.lang.ClassNotFoundException: com.opensymphony.xwork2.util.ValueStack

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struts2突然报错，原先运行好好的，求高手解答！ [问题点数：40分，结帖人sqs201]

: sqs201; 七彩邪云; 本版等级：; 结帖率：100%

楼主发表于： 2011-12-01 17:48:02

严重: Servlet.service() for servlet jsp threw exception
java.lang.ClassNotFoundException: com.opensymphony.xwork2.util.ValueStack
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1516)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1361)
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
at java.lang.Class.getDeclaredMethods(Unknown Source)
at org.apache.catalina.util.DefaultAnnotationProcessor.processAnnotations(DefaultAnnotationProcessor.java:226)
at org.apache.jasper.runtime.AnnotationHelper.postConstruct(AnnotationHelper.java:44)
at org.apache.jasper.runtime.TagHandlerPool.get(TagHandlerPool.java:127)
at org.apache.jsp.index_jsp._jspx_meth_s_005fif_005f0(index_jsp.java:103)
at org.apache.jsp.index_jsp._jspService(index_jsp.java:73)
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:377)
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:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Unknown Source)

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回复次数：7

: im110; im110; 本版等级：

#1 得分：0回复于： 2011-12-01 17:54:05

你把xwork.jar拷贝过来。如果已经有了，就升级一下，把最新的拷贝过来。

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