zoukankan      html  css  js  c++  java
  • getHibernateTemplate 抛出NullPointer 异常 其中一个容易被忽略的原因

    2012-1-31 16:15:45 org.apache.catalina.core.StandardWrapperValve invoke 严重: Servlet.service() for servlet [action] in context with path [/address] threw exception [java.lang.NullPointerException] with root cause java.lang.NullPointerException at com.wl.addr.hibernate.dao.AddressDAO.delete(AddressDAO.java:104) at com.wl.addr.struts.actions.AddressAction.delete(AddressAction.java:171) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at


    action里new了两个DAO,可能是直接new的,也可能是调用其他方法时又new了一次 , 导致错误

  • 相关阅读:
    Linux file命令详解
    Linux stat命令详解
    Linux cut命令详解
    Linux tr命令详解
    Linux grep/egrep命令详解
    Linux awk命令详解
    Linux xargs命令详解
    MVC设计模式
    qt博客
    android
  • 原文地址:https://www.cnblogs.com/huzefeng/p/2426026.html
Copyright © 2011-2022 走看看