com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:190)

com.alibaba.fastjson.serializer.StringCodec.write(StringCodec.java:34)

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

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

com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:243)

com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)

com.alibaba.fastjson.JSON.toJSONString(JSON.java:418)

com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

com.alibaba.fastjson.serializer.SerializeWriter.writeString(SerializeWriter.java:1366)

<b>description</b> <u>The server encountered an internal error that prevented it from fulfilling this request.</u></p>\r

com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)