HTTP Status 500 - java.lang.reflect.InvocationTargetException

wen_文文 2017-04-28 09:55:48
type Exception report

message java.lang.reflect.InvocationTargetException

description The server encountered an internal error that prevented it from fulfilling this request.

exception
javax.servlet.ServletException: java.lang.reflect.InvocationTargetException
com.practice.action.BaseAction.doPost(BaseAction.java:31)
javax.servlet.http.HttpServlet.service(HttpServlet.java:650)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
com.practice.filter.EncoderFilter.doFilter(EncoderFilter.java:24)



root cause
java.lang.reflect.InvocationTargetException
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:597)
com.practice.action.BaseAction.doPost(BaseAction.java:29)
javax.servlet.http.HttpServlet.service(HttpServlet.java:650)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
com.practice.filter.EncoderFilter.doFilter(EncoderFilter.java:24)



root cause
javax.servlet.ServletException: java.lang.NullPointerException
com.practice.action.ProduceAction.add(ProduceAction.java:60)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:597)
com.practice.action.BaseAction.doPost(BaseAction.java:29)
javax.servlet.http.HttpServlet.service(HttpServlet.java:650)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
com.practice.filter.EncoderFilter.doFilter(EncoderFilter.java:24)



root cause
java.lang.NullPointerException
com.practice.biz.ProduceServImpl.create(ProduceServImpl.java:12)
com.practice.action.ProduceAction.add(ProduceAction.java:54)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:597)
com.practice.action.BaseAction.doPost(BaseAction.java:29)
javax.servlet.http.HttpServlet.service(HttpServlet.java:650)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
com.practice.filter.EncoderFilter.doFilter(EncoderFilter.java:24)



note The full stack trace of the root cause is available in the Apache Tomcat/7.0.67 logs.


Apache Tomcat/7.0.67
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java.lang.NullPointerException com.practice.biz.ProduceServImpl.create(ProduceServImpl.java:12)
podd 2017-04-28
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InvocationTargetException 是一种包装由调用方法或构造方法所抛出异常的受查异常 原因可能是一下几点:   1、包冲突、有重复包或者缺少包   2、项目jdk和部署jdk版本不一样,导致InvocationTargetException异常信息返回一个空值,没有调用invoc里的重写消息方法。   3、映射文件发生改变

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