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时间:2021-07-24
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1、StrutsProblemReportStrutshasdetectedanunhandledexception:Messages:File:com/chen/action/Left2Action.javaLinenumber:2,976Stacktracesjava.lang.NullPointerExceptioncom.chen.action.Left2Action.downloadFile(Left2Action.java:2976)sun.reflect.GeneratedMethodAcc
2、essor72.invoke(UnknownSource)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)java.lang.reflect.Method.invoke(Method.java:597)com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:4
3、53)com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:292)com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:255)org.apache.struts2.interceptor.debugging.DebuggingInterceptor.in
4、tercept(DebuggingInterceptor.java:256)com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249)com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:176)com.opensymphony
5、.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249)com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationI
6、nterceptor.java:265)org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)com.o
7、pensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249)com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:138)com.opensymphony.xwork2.DefaultActionInvocation.invoke(Defaul
8、tActionInvocation.java:249)com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:211)com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98
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