Day5：基于SSM框架的管理系统 代码

代码

UserInfo.java

package com.zhongruan.bean;

public class UserInfo {
    private int id;
    private String username;
    private String password;

    public UserInfo() {
    }

    public UserInfo(int id, String username, String password) {
        this.id = id;
        this.username = username;
        this.password = password;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    @Override
    public String toString() {
        return "UserInfo{" +
                "id=" + id +
                ", username='" + username + '\'' +
                ", password='" + password + '\'' +
                '}';
    }
}

IUserInfoDao.java

package com.zhongruan.dao;

import com.zhongruan.bean.UserInfo;

import java.util.List;

public interface IUserInfoDao {
    public List<UserInfo> findAll();

    public void add(UserInfo userInfo);

    public void delete(int id);

    public void update(UserInfo userInfo);

    public UserInfo findUserById(int id);

}

UserInfoMapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.zhongruan.dao.IUserInfoDao">
    <select id="findAll" resultType="com.zhongruan.bean.UserInfo">
    	select * from userinfo;
    </select>

    <insert id="add" parameterType="com.zhongruan.bean.UserInfo">
        insert into userinfo(id,username,password)values (#{id},#{username},#{password});
    </insert>

    <update id="update" parameterType="com.zhongruan.bean.UserInfo">
        update userinfo set username=#{username},password=#{password} where id=#{id};
    </update>

    <delete id="delete" parameterType="int" >
        delete from userinfo where id=#{id};
    </delete>

    <select id="findUserById" parameterType="int" resultType="com.zhongruan.bean.UserInfo">
        select * from userinfo where id=#{id};
    </select>


</mapper>

IUserInfoService.java

package com.zhongruan.service;

import com.zhongruan.bean.UserInfo;

import java.util.List;

public interface IUserInfoService {
    public List<UserInfo> findAll();

    public void add(UserInfo userInfo);

    public void delete(int id);

    public void update(UserInfo userInfo);

    public UserInfo findUserById(int id);
}

UserInfoServiceImpl.java

package com.zhongruan.service.impl;

import com.zhongruan.bean.UserInfo;
import com.zhongruan.dao.IUserInfoDao;
import com.zhongruan.service.IUserInfoService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service("userInfoService")
public class UserInfoServiceImpl implements IUserInfoService {
    @Autowired
    IUserInfoDao userInfoDao;

    @Override
    public List<UserInfo> findAll() {
        return userInfoDao.findAll();
    }

    @Override
    public void add(UserInfo userInfo) {
        userInfoDao.add(userInfo);
    }

    @Override
    public void delete(int id) {
        userInfoDao.delete(id);
    }

    @Override
    public void update(UserInfo userInfo) {
        userInfoDao.update(userInfo);
    }

    @Override
    public UserInfo findUserById(int id) {
        return userInfoDao.findUserById(id);
    }
}

UserInfoController.java

package com.zhongruan.controller;

import com.zhongruan.bean.UserInfo;
import com.zhongruan.service.IUserInfoService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

import java.util.List;

@Controller
@RequestMapping("user")
public class UserInfoController {
    @Autowired
    IUserInfoService userInfoService;


    @RequestMapping("findAll.do")
    public ModelAndView findAll() {
        List<UserInfo> users = userInfoService.findAll();
        ModelAndView mv = new ModelAndView();
        mv.addObject("users", users);
        mv.setViewName("allUser");
        return mv;
    }

    @RequestMapping("toAddUser.do")
    public ModelAndView toAdd() {
        ModelAndView mv = new ModelAndView();
        mv.setViewName("addUser");
        return mv;
    }

    @RequestMapping("save.do")
    public ModelAndView save(int id, String username, String password) {
        UserInfo userInfo = new UserInfo(id, username, password);
        userInfoService.add(userInfo);
        return findAll();
    }

    @RequestMapping("delete.do")
    public ModelAndView delete(int id) {
        userInfoService.delete(id);
        List<UserInfo> users = userInfoService.findAll();
        ModelAndView mv = new ModelAndView();
        mv.addObject("users", users);
        mv.setViewName("allUser");
        return mv;
    }

    @RequestMapping("toUpdate.do")
    public ModelAndView toUpdate(int id) {
        UserInfo userInfo = userInfoService.findUserById(id);
        ModelAndView mv = new ModelAndView();
        mv.addObject("userInfo", userInfo);
        mv.setViewName("updateUser");
        return mv;
    }

    @RequestMapping("update.do")
    public ModelAndView updateUser(int id, String username, String password) {
        UserInfo userInfo = new UserInfo(id, username, password);
        userInfoService.update(userInfo);
        return findAll();
    }
}