HTTP Status 500 - Request processing failed; nested exception is java.lang.NullPointerException

type Exception report

message Request processing failed; nested exception is java.lang.NullPointerException

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

exception

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.NullPointerException
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:965)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:844)
javax.servlet.http.HttpServlet.service(HttpServlet.java:620)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:829)
javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
com.auth.filter.AuthorizationFilter.doFilterInternal(AuthorizationFilter.java:77)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:106)
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:343)
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:260)
com.auth.filter.AuthenticationFilter.doFilterInternal(AuthenticationFilter.java:111)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:106)
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:343)
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:260)
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:106)
root cause

java.lang.NullPointerException
com.xinghe.base.action.NoticePublic.listNotice(NoticePublic.java:44)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:440)
org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:919)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:851)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:953)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:844)
javax.servlet.http.HttpServlet.service(HttpServlet.java:620)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:829)
javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
com.auth.filter.AuthorizationFilter.doFilterInternal(AuthorizationFilter.java:77)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:106)
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:343)
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:260)
com.auth.filter.AuthenticationFilter.doFilterInternal(AuthenticationFilter.java:111)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:106)
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:343)
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:260)
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:106)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.54 logs.

Apache Tomcat/7.0.54

NullPointerException，这个错误非常明显，就是没有对变量进行Null推断。

错误位置：com.xinghe.base.action.NoticePublic.listNotice(NoticePublic.java:44)

HTTP Status 500 - Request processing failed; nested exception is java.lang.NullPointerException的更多相关文章

  1. SSM框架报HTTP Status 500 - Request processing failed; nested exception is java.lang.NullPointerException错

    如下图 一番排查之后发现原来是server层写漏注释了 粗心大意,一天内出现两次写漏注释,SSM框架有意思.

  2. HTTP Status 500 - Request processing failed; nested exception is java.lang.IllegalArgumentException: Control character in cookie value or attribute.

    HTTP Status 500 - Request processing failed; nested exception is java.lang.IllegalArgumentException: ...

  3. HTTP Status 500 - Handler processing failed; nested exception is java.lang.NoClassDefFoundError: javax/servlet/jsp/jstl/core/Config

    今天在用idea搭建spring mvc时候报了这个错误,缺少jstl的依赖包.由于是使用的spring-core的依赖,而spring-core里面是有jstl的.这就郁闷了,最后是在自己的pom. ...

  4. HTTP Status 500 - Handler processing failed; nested exception is java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11GraphicsEnvironment

    解决方案:修改catalina.sh 文件加上-Djava.awt.headless=true JAVA_OPTS="$JAVA_OPTS $JSSE_OPTS -Djava.awt.hea ...

  5. error：org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.NullPointerException

    问题:调用的方法在一个接口类中,但我并没有注入那个被调用的类 解决:在UserEntity前加上@Autowired @Controller public class MainController { ...

  6. 报错：严重: Servlet.service() for servlet [springmvc] in context with path [ ] threw exception [Request processing failed; nested exception is java.lang.NullPointerException] with root cause

    解决:service类或dao类需要@Autowired

  7. 14- Servlet.service() for servlet [mvc-dispatcher] in context with path [/collegeservice] threw exception [Request processing failed; nested exception is java.lang.NullPointerException] with root caus

    有的service没有依赖注入:

  8. HTTP Status 500 - Request processing failed; nested exception is org.springframework.jdbc.BadSqlGram

    HTTP Status 500 - Request processing failed; nested exception is org.springframework.jdbc.BadSqlGram ...

  9. HTTP Status 500 - Request processing failed; nested exception is org.hibernate.exception.GenericJDBCException: could not execute statement

    1.什么操作出现:当我在项目中添加产品或者修改时,浏览器出现HTTP Status 500 - Request processing failed; nested exception is org.h ...

随机推荐

  1. 技术总结--android篇(一)--MVC模式

    先介绍下MVC模式:MVC全名是Model View Controller,是模型(model)-视图(view)-控制器(controller)的缩写,一种软件设计典范,用一种业务逻辑.数据.界面显 ...

  2. man pthread_mutex_init 或 man pthread_mutex_lock 没有结果的解决的方法

    问题: 在刚装好的 Mint/Ubuntu 可能会出现 man pthread_mutex 相关的函数没结果, 报No manual entry for pthread_mutex_init 的错误. ...

  3. Android持久化保存cookie

    在解析网页信息的时候,需要登录后才能访问,所以使用httpclient模拟登录,然后把cookie保存下来,以供下一次访问使用,这时就需要持久化cookie中的内容. 在之前先科普一下基础知识: 什么 ...

  4. python绘制caffe中网络模型

    caffe-master/python/draw_net.py 实现绘制caffe中定义的网络模型功能,将.prototxt文件可视化. 需要先安装pydot和protobuf工具 通过Anacond ...

  5. Oracle RMAN备份中catalog和nocatalog区别

    nocatalog方式:用control file作为catalog,每一次备份都要往控制文件里面写好多备份信息,控制文件里面会有越来越多的备份信息,即RMAN的备份信息写在本地控制文件里面. cat ...

  6. C# 遍历文件夹及子目录下所有图片.

    要求:取指定目录下面的所有图片,以表格的型式展示并显示该图片的相对路径. 服务端代码: public partial class ViewIcon : System.Web.UI.Page { JAr ...

  7. Windows系统安装MySQL5.5.21图解教程

    大家都知道MySQL是一款中.小型关系型数据库管理系统,很具有实用性,对于我们学习很多技术都有帮助 数据库是5.5.21这个版本的.以下是安装步骤: 1.首先单击MySQL5.5.21的安装文件,出现 ...

  8. springMVC、mybatis实现的登录页面（maven）

    首先项目结构 pom文件 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http:// ...

  9. SQL 数据库性能优化

    http://blog.csdn.net/yzllz001/article/details/54848513 1.  减少数据访问(减少磁盘访问) 2.  返回更少数据(减少网络传输或磁盘访问) 3. ...

  10. Mongo——C#操作

    自己练手写了一个MongoDb的泛型类,顺便把一些常用命令整理了一下,做个记录: /// <summary> /// Mongo操作类. /// </summary> /// ...