S2SH整合出现空指针异常，求解！！！
public class loginDao extends HibernateDaoSupport implements IloginDao{
public List login(user user) {
try{String hql="from java_test where name='"+user.getUserName()+"' and pwd='"+user.getPassWord()+"'";
System.out.print("------"+hql);
List list =this.getHibernateTemplate().find(hql);
if(list.size()>0){
System.out.println(list);
return list;
}else return null;
}catch (Exception e){
e.printStackTrace();
return null;
}
}
}
public class LoginService implements ILoginService{
private IloginDao loginDao;
public IloginDao getLoginDao() {
return loginDao;
}
public void setLoginDao(IloginDao loginDao) {
this.loginDao = loginDao;
}
public List login(user user) {
return this.getLoginDao().login(user);
}
}
public class LoginAction {
private ILoginService loginservice;
private user user;
public ILoginService getLoginservice() {
return loginservice;
}
public void setLoginservice(ILoginService loginservice) {
this.loginservice = loginservice;
}
public user getUser() {
return user;
}
public void setUser(user user) {
this.user = user;
}
public String execute() throws Exception {
user.setUserName(user.getUserName());
System.out.println(user.getUserName());
user.setPassWord(user.getPassWord());
System.out.println(user.getPassWord());
List list=loginservice.login(user);
if (list!=null&&list.size()>0) {
System.out.println("登陆成功");
ServletActionContext.getRequest().setAttribute("list", list);
return "success";}
else {
return "error";
}
}
}
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
<package name="Struts2" extends="struts-default">
<action name="LoginAction" class="com.test.action.LoginAction" method="execute">
<result name="error">/index.jsp</result>
<result name="success">/success.jsp</result>
</action>
</package>
<constant name="struts.objectFactory" value="spring" />
</struts>
<?xml version="1.0" encoding="UTF-8"?>
<beans
xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="configLocation"
value="classpath:hibernate.cfg.xml">
</property>
</bean>
<!-- dao___sessionFactory -->
<bean id="loginDao" class="com.test.dao.loginDao">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
<bean id="loginService" class="com.test.service.LoginService">
<property name="loginDao" ref="loginDao"></property>
</bean>
<bean id="loginAction" class="com.test.action.LoginAction">
<property name="loginservice" ref="loginService"></property>
</bean>
</beans>
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>*.action</url-pattern>
</filter-mapping>
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
</web-app>
求解，为什么都没调用到hql语句？？？？是注入错误吗？？？
[解决办法]
哎，我最近也遇到和你一样的问题，到现在都没有解决
[解决办法]
execute方法中
user.setUserName(user.getUserName());
System.out.println(user.getUserName());
user.setPassWord(user.getPassWord());
System.out.println(user.getPassWord());
两个输出的值是什么？
另：这代码跟没写一样...
建议新new一个user1进行set，然后
List list=loginservice.login(user1);
[解决办法]
action里面的service名称跟application.xml中的bean--》service名称不一致……
[解决办法]
user.getUserName();
user是你定义的一个对象，没有实例化吧，必然空指针
