ssh中action调用service层出现空指针异常
飞扬紫云 2014-02-23 09:30:59 spring代码:
<?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:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">
<bean id="userDao" class="com.zoutaotech.dao.impl.UserDaoImpl">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
<bean id="userService" class="com.zoutaotech.service.impl.UserServiceImpl">
<property name="userDao" ref="userDao"></property>
</bean>
<bean name="UserAction" class="com.zoutaotech.action.UserAction" scope="prototype">
<property name="userService">
<ref bean="userService"/>
</property>
</bean>
</beans>
Action代码:
package com.zoutaotech.action;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import com.opensymphony.xwork2.ActionSupport;
import com.zoutaotech.base.BaseAction;
import com.zoutaotech.bean.User;
import com.zoutaotech.service.UserService;
public class UserAction extends BaseAction{
private String loginName;
private String password;
private UserService userService;
private String result;
public UserService getUserService() {
return userService;
}
public void setUserService(UserService userService) {
this.userService = userService;
}
public String getLoginName() {
return loginName;
}
public void setLoginName(String loginName) {
this.loginName = loginName;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getResult() {
return result;
}
@Override
public String execute() throws Exception {
User user = userService.queryUserByName(loginName);
System.out.println("loginName="+loginName);
System.out.println("user="+user);
if (null != user) {
if (password.equals(user.getPassword())) {
result = "登陆成功!";
} else {
result = "密码不正确!";
}
} else {
result = "用户名不存在!";
}
System.out.println(result);
return SUCCESS;
}
}
action里打印的user一直为空,求大神指教!