五月 04, 2018 11:53:24 上午 org.apache.catalina.core.ApplicationDispatcher invoke 严重: Servlet.service() for servlet [jsp] threw exception java.lang.NullPointerException at org.apache.jsp.tag.web.partyRoleId_tag.doTag(partyRoleId_tag.java:125) at org.apac…

错误: 严重: Servlet.service() for servlet jsp threw exception java.lang.IllegalStateException: getOutputStream() has already been called 输出验证码的类: package com.jxc.util; import java.awt.Color; import java.awt.Font; import java.awt.Graphics; import java.awt…

严重: Servlet.service() for servlet jsp threw exception    java.lang.IllegalStateException: getOutputStream() has already been called for this response .... 在网上搜索之后的解决方法是: 在生成验证码的jsp文件末尾添加两句话 out.clear();out = pageContext.pushBody(); ==================…

这个为什么报错啊~~ at com.hsp.basic.BasicService.executeQuery(BasicService.java:33) 这个对应的语句是   Query query =this.sessionFactory.getCurrentSession().createQuery(hql); Sep 24, 2017 11:39:50 PM org.apache.catalina.core.StandardWrapperValve invoke 严重: Servlet.se…

错误付现: 严重: Servlet.service() for servlet UserServlet threw exceptionjava.lang.NullPointerException at com.liuyang.servlet.UserServlet.doGet(UserServlet.java:17) at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) at javax.servlet.http.Http…

堆栈信息: 2014-6-17 10:33:58 org.apache.tomcat.util.digester.Digester endElement 严重: End event threw exception java.lang.IllegalArgumentException: Can't convert argument: null at org.apache.tomcat.util.IntrospectionUtils.convert(IntrospectionUtils.java:1…

1 详细信息 User class threw exception: java.lang.IllegalStateException: Cannot call methods on a stopped SparkContext. This stopped SparkContext was created at:   org.apache.spark.SparkContext.<init>(SparkContext.scala:76) com.wm.bigdata.spark.etl.RentO…

今天遇到了一个在servlet的service方法中获取ServletContext对象出现java.lang.NullPointerException(空指针)异常,代码如下: 1 //获取ServletContext对象 2 ServletContext servletContext = this.getServletContext(); 这个问题很奇怪,也是第一次遇到,因为以前在servlet的doGet/doPost方法中要获取ServletContext对象时都是这样写的,也没有出现过…

Servlet.service() for servlet jsp threw exceptionjava.lang.NullPointerExceptionat org.jaronsource.msneg.domain.SysUserExtend.getServiceExtend(SysUserExtend.java:216)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMe…

环境:myeclipse+tomcat6+jdk6 今天搭建了一个Java Web项目,访问index.jsp时报如下错误: 严重: Servlet.service() for servlet jsp threw exceptionjava.lang.NullPointerException    at org.apache.jsp.front.index_jsp._jspInit(index_jsp.java:30)    at org.apache.jasper.runtime.HttpJs…