今天做一个Spring和Struts的融合,通过bean注入后,程序一跑起来,就报这个错误: java.lang.NullPointerException com.cb.action.LoginAction.execute(LoginAction.java:48) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodA…

java.lang.NullPointerException org.apache.jsp.index_jsp._jspInit(index_jsp.java:22) org.apache.jsp.index_jsp._jspInit(index_jsp.java:22) 出现这种问题,可能有多方面的原因,最主要的就是自己工程里的jar包和tomca中的jar包冲突导致,很多解决方案就是删除工程里的jsp- api.jar和servlet-api.jar两个jar包,这种解决方案是对的,但是删除…

转自:https://blog.csdn.net/koudailidexiaolong/article/details/9468857 HTTP Status 500 - type Exception report message description The server encountered an internal error () that prevented it from fulfilling this request. exception java.lang.NullPointe…

08-29 20:33:47.305 20636-20636/com.tongyan.subway.inspect D/AndroidRuntime: Shutting down VM 08-29 20:33:47.305 20636-20636/com.tongyan.subway.inspect W/dalvikvm: threadid=1: thread exiting with uncaught exception (group=0x41aeb2a0) 08-29 20:33:47.36…

java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.…

@Repository public class SysUerCDAO { @Autowired private Hibernate_Credit hibernate_credit; /** * 根据手机号码获取用户信息 * @param account * @return */ @Transactional//这里少写了 public SysUserC GetSysUser(String account) { Session session = hibernate_credit.getCurr…

JAVA错误:Exception in thread "main" java.lang.NullPointerException例如: Exception in thread "main" java.lang.NullPointerException at javax.swing.ImageIcon.<init>(Unknown Source) at chuangti.Example1.CreateJFrame(Example1.java:41) at…

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…

java.lang.NullPointerException at com.itheima.test.Test2.fun1(Test2.java:18) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMeth…

在用eclipse做struts1项目时,配置都ok了.可是一运行就报java.lang.NullPointerException: Module 'null' not found.错. 代码如下: web.xml <servlet> <servlet-name>action</servlet-name> <servlet-class>org.apache.struts.action.ActionServlet</servlet-class> &…