java.lang.NoClassDefFoundError

Question

项目运行的时候没有错误，登陆是则后台提示ava.lang.NoClassDefFoundError: org/apache/commons/lang/StringUtils

Answer 1

[13-7-26 16:59:07:462 CST] 7bf60b66 WebGroup      E SRVE0026E: ［Servlet 错误］－［Filter [CsrfFilter]: filter is unavailable.］：java.lang.NoClassDefFoundError: org/apache/commons/lang/StringUtils
at com.unisure.security.patch.CsrfFilter.doFilter(CsrfFilter.java:70)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:132)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:71)
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.handleWebAppDispatch(WebAppRequestDispatcher.java:939)
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java:530)
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:176)
at com.ibm.ws.webcontainer.srt.WebAppInvoker.doForward(WebAppInvoker.java:79)
at com.ibm.ws.webcontainer.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:201)
at com.ibm.ws.webcontainer.cache.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:71)
at com.ibm.ws.webcontainer.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:182)
at com.ibm.ws.webcontainer.oselistener.OSEListenerDispatcher.service(OSEListener.java:334)
at com.ibm.ws.webcontainer.http.HttpConnection.handleRequest(HttpConnection.java:56)
at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:610)
at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:431)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:593)

Answer 2

看看你应用服务器的commom/lib下是否有jar包冲突等等，基本上就是没有引用到你想用的那个包

Answer 3

commons-lang-2.3.jar中的StringUtils是在org/apache/commons/lang2/StringUtilsLZ应该用commons-lang-1.x的jar包

Answer 4

看一下你jar包部署到服务器了没有.
 

Answer 5

谢谢各位，原因是我这个项目是新到导入的，两个项目没做关联，这个jar另外一个项目中没找到，重新引用下这个项目就没问题了