Struts Problem Report

Struts has detected an unhandled exception:

Messages:
  • com.liuyang.action.UserAction.add()
File: java/lang/Class.java
Line number: 1,678

Stacktraces

java.lang.NoSuchMethodException: com.liuyang.action.UserAction.add()

    java.lang.Class.getMethod(Class.java:1678)

    org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.getActionMethod(AnnotationValidationInterceptor.java:75)

    org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:47)

    com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)

    com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:122)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)

    com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195)

    com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)

    com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195)

    com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)

    com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:179)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)

    org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:75)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)

    org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:94)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)

    org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:235)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)

    com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:89)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)

    com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:130)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)

    org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:267)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)

    com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:126)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)

    com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:138)

    com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)

    com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:165)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)

    org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)

    com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:179)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)

    com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:176)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)

    org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)

    org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:488)

    org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)

    org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)

    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)

    org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

    org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:218)

    org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)

    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)

    org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)

    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)

    org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)

    org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)

    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:442)

    org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1082)

    org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:623)

    org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2517)

    org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2506)

    java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)

    java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)

    org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

    java.lang.Thread.run(Thread.java:745)

发现有两种错误可能引起上述异常:

（1）Action 类的方法被定义成 private 类型.

如下 Action 中被访问的方法被定义成 private 类型.程序在访问其方法时,会抛出以上异常。（我的就是方法设置成了私有的）

（2）Action类没有继承structs里面的DispatchAction或者其它的类

java.lang.NoSuchMethodException这个异常的根本原因有两个：

第一，缺少某些jar文件；

第二，某些jar文件有重复。

 

最新文章

  1. 微信小程序定时器组件（输入时间字符串即可倒计时）
  2. URL传递中文字符，特殊危险字符的解决方案（仅供参考）urldecode、base64_encode
  3. html初学者了解的笔记02
  4. C#的初始化器
  5. plsql基础
  6. 常用公共的css的样式
  7. OpenJudge计算概论-最长平台
  8. jquery实现表格行的动态增加和删除
  9. 对tomcat来说，每一个进来的请求(request)都需要一个线程，直到该请求结束。
  10. JS 同源策略
  11. C# 数学运算符
  12. B/S和C/S【转载Jane的博客 http://blog.sina.com.cn/liaojane】
  13. Android非常有用的开源库介绍整理
  14. Three ways to throw exception in C#. Which is your preference?
  15. Python中将函数作为另一个函数的参数传入并调用
  16. 51 nod 1023 石子归并 V3(GarsiaWachs算法)
  17. Spring多数据源解决方案
  18. Access Token 与 Refresh Token【转载哒科普啊】
  19. iTOP-4418开发板Ubuntu系统烧写方法分享
  20. 删去k个数字后的最小值

热门文章

  1. python中时间差中seconds和total_seconds
  2. js原生实现 无缝滚动图片
  3. 是否需要主动调用Bitmap的recycle方法
  4. 吴裕雄 python 数据处理（2）
  5. MongoDB 数据库命令
  6. sdc docker连接
  7. 使用js获取伪元素的content
  8. Our Journey of Xian Ends
  9. mongo远程登录
  10. django做form表单的数据验证