src/com/itbaizhan/action/UserAction.java

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package com.itbaizhan.action;

import javax.annotation.Resource;

import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.Namespace;
import org.apache.struts2.convention.annotation.Result;
import org.apache.struts2.convention.annotation.Results;

import com.itbaizhan.entity.Users;
import com.itbaizhan.service.UserService;

@Action("user")
@Namespace("/index")
@Results({
	@Result(name="login",location="/index/login.jsp"),
	@Result(name="register",location="/index/register.jsp"),
	@Result(name="index",location="index.action",type="redirect"),
})
public class UserAction extends BaseAction{
	private static final long serialVersionUID = 1L;
	
	private Users user;
	
	@Resource
	private UserService userService;

	
	/**
	 * 注册用户
	 * @return
	 */
	public String register(){
		if (user.getUsername().isEmpty()) {
			addActionMessage("用户名不能为空!");
			return "register";
		}else if (userService.isExist(user.getUsername())) {
			addActionMessage("用户名已存在!");
			return "register";
		}else {
			userService.add(user);
			addActionMessage("注册成功, 请登录!");
			return "login";
		}
	}
	
	/**
	 * 用户登录
	 * @return
	 * @throws Exception
	 */
	public String login() {
		if(userService.checkUser(user.getUsername(), user.getPassword())){
			getSession().put("username", user.getUsername());
			return "index";
		} else {
			addActionMessage("用户名或密码错误!");
			return "login";
		}
	}