在MyEclipse中使用spring-boot+mybatis+freemarker实现基本的增删改查

一、基本环境

二、创建实体类

　　1.User.java

package bjredcross.rainbowplans.model;

import bjredcross.rainbowplans.common.UUIDUtils;

public class User {

    private String id;

    private String nickname;

    private String loginpassword;

    private String email;

    public String getId() {

        return id;

    }

    public void setId(String id) {

        this.id = id;

    }

    public String getNickname() {

        return nickname;

    }

    public void setNickname(String nickname) {

        this.nickname = nickname;

    }

    public String getLoginpassword() {

        return loginpassword;

    }

    public void setLoginpassword(String loginpassword) {

        this.loginpassword = loginpassword;

    }

    public String getEmail() {

        return email;

    }

    public void setEmail(String email) {

        this.email = email;

    }

}

　　2.UserSex.java

package bjredcross.rainbowplans.model;

public class UserSex {

    private String id;

    private String sexname;

    private String sexcode;

    public String getId() {

        return id;

    }

    public void setId(String id) {

        this.id = id;

    }

    public String getSexname() {

        return sexname;

    }

    public void setSexname(String sexname) {

        this.sexname = sexname;

    }

    public String getSexcode() {

        return sexcode;

    }

    public void setSexcode(String sexcode) {

        this.sexcode = sexcode;

    }

}

三、创建映射文件

　　1.UserMapper.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="bjredcross.rainbowplans.dao.UserMapper">

 <resultMap id="BaseResultMap" type="bjredcross.rainbowplans.model.User">

    <result column="id" property="id" />

    <result column="nickname" property="nickname" />

    <result column="loginpassword" property="loginpassword" />

    <result column="email" property="email" />

 </resultMap>

 <parameterMap id="User" type="bjredcross.rainbowplans.model.User"/>

 <sql id="Base_User_List">

    id, nickname, loginpassword, email

 </sql>

 <select id="findAll" resultMap="BaseResultMap">

  select

  <include refid="Base_User_List" />

  from t_user

 </select>

 <select id="findById" resultMap="BaseResultMap" parameterType="java.lang.String">

  select

  <include refid="Base_User_List" />

  from t_user where id = #{id}

 </select>

 <update id="updateUser" parameterType="bjredcross.rainbowplans.model.User">

  update t_user set

  nickname = #{nickname}, loginpassword = #{loginpassword}, email = #{email}

  where id = #{id}

 </update>

 <insert id="insertUser" parameterType="bjredcross.rainbowplans.model.User">

  insert into t_user (id, nickname, loginpassword, email)

  values (#{id}, #{nickname}, #{loginpassword}, #{email})

 </insert>

 <delete id="deleteById" parameterType="java.lang.String">

  delete from t_user where id = #{id}

 </delete>

</mapper>

　　2.UserSexMapper.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="bjredcross.rainbowplans.dao.UserMapper">

 <resultMap id="BaseResultMap" type="bjredcross.rainbowplans.model.User">

    <result column="id" property="id" />

    <result column="nickname" property="nickname" />

    <result column="loginpassword" property="loginpassword" />

    <result column="email" property="email" />

 </resultMap>

 <parameterMap id="User" type="bjredcross.rainbowplans.model.User"/>

 <sql id="Base_User_List">

    id, nickname, loginpassword, email

 </sql>

 <select id="findAll" resultMap="BaseResultMap">

  select

  <include refid="Base_User_List" />

  from t_user

 </select>

 <select id="findById" resultMap="BaseResultMap" parameterType="java.lang.String">

  select

  <include refid="Base_User_List" />

  from t_user where id = #{id}

 </select>

 <update id="updateUser" parameterType="bjredcross.rainbowplans.model.User">

  update t_user set

  nickname = #{nickname}, loginpassword = #{loginpassword}, email = #{email}

  where id = #{id}

 </update>

 <insert id="insertUser" parameterType="bjredcross.rainbowplans.model.User">

  insert into t_user (id, nickname, loginpassword, email)

  values (#{id}, #{nickname}, #{loginpassword}, #{email})

 </insert>

 <delete id="deleteById" parameterType="java.lang.String">

  delete from t_user where id = #{id}

 </delete>

</mapper>

四、创建数据层接口

　　1.UserMapper.java

package bjredcross.rainbowplans.dao;

import java.util.List;

import bjredcross.rainbowplans.model.User;

public interface UserMapper {

    List<User> findAll();

    User findById(String id);

    void updateUser(User user);

    void insertUser(User user);

    void deleteById(String id);

}

　　2.UserSexMapper.java

package bjredcross.rainbowplans.dao;

import java.util.List;

import bjredcross.rainbowplans.model.UserSex;

public interface UserSexMapper {

    List<UserSex> findAll();

}

五、创建服务层接口

　　1.UserService.java

package bjredcross.rainbowplans.service;

import java.util.List;

import bjredcross.rainbowplans.model.User;

public interface UserService {

    List<User> findAll();

    User findById(String id);

    void updateUser(User user);

    void insertUser(User user);

    void deleteById(String id);

}

　　2.UserSexService.java

package bjredcross.rainbowplans.service;

import java.util.List;

import bjredcross.rainbowplans.model.UserSex;

public interface UserSexService {

    List<UserSex> findAll();

}

六、创建服务层类

　　1.UserServiceImpl.java

package bjredcross.rainbowplans.service.impl;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Service;

import bjredcross.rainbowplans.dao.UserMapper;

import bjredcross.rainbowplans.model.User;

import bjredcross.rainbowplans.service.UserService;

@Service

public class UserServiceImpl implements UserService {

    @Autowired

    private UserMapper userMapper;

    @Override

    public List<User> findAll() {

        return userMapper.findAll();

    }

    public User findById(String id){

        return userMapper.findById(id);

    }

    public void updateUser(User user){

        userMapper.updateUser(user);

    }

    public void insertUser(User user)

    {

        userMapper.insertUser(user);

    }

    public void deleteById(String id)

    {

        userMapper.deleteById(id);

    }

}

　　2.UserSexServiceImpl.java

package bjredcross.rainbowplans.service.impl;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Service;

import bjredcross.rainbowplans.dao.UserSexMapper;

import bjredcross.rainbowplans.model.UserSex;

import bjredcross.rainbowplans.service.UserSexService;

@Service

public class UserSexServiceImpl implements UserSexService {

    @Autowired

    private UserSexMapper userSexMapper;

    @Override

    public List<UserSex> findAll() {

        return userSexMapper.findAll();

    }

}

七、创建控制文件

　　UserController.java

package bjredcross.rainbowplans.controller;

import java.util.List;

import java.util.Map;

import java.util.Set;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Controller;

import org.springframework.ui.ModelMap;

import org.springframework.util.StringUtils;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestMethod;

import org.springframework.web.bind.annotation.ResponseBody;

import org.springframework.web.servlet.ModelAndView;

import bjredcross.rainbowplans.common.ResultUtils;

import bjredcross.rainbowplans.common.UUIDUtils;

import bjredcross.rainbowplans.model.User;

import bjredcross.rainbowplans.model.UserSex;

import bjredcross.rainbowplans.service.UserService;

import bjredcross.rainbowplans.service.UserSexService;

@Controller

@RequestMapping("/user")

public class UserController {

    @Autowired

    private UserService userService;

    @Autowired

    private UserSexService userSexService;

    @RequestMapping(value = "list")

    public ModelAndView findAll(HttpServletRequest request, HttpServletResponse response){

        //String username = request.getParameter("username").trim();

        String getContextPath = request.getContextPath();

        String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+getContextPath+"/";

        String getRemoteAddress=request.getRemoteAddr();

        String getServletPath =request.getServletPath();

        String getRequestURL =request.getRequestURL().toString();

        String getRequestURI =request.getRequestURI();

        String getQueryString =request.getQueryString();

        String getRemoteUser =request.getRemoteUser();

        Map map = request.getParameterMap();

        Set<String> set = map.keySet();

        for(String name : set){

            //获得每个文本域所对应的值

            String[] vals = (String[]) map.get(name);

            System.out.print(name+":");

            for(String val : vals){

                System.out.print(val+" ");

            }

            System.out.println();

        }

        ModelAndView model = new ModelAndView("user/list");

        model.addObject("userList",userService.findAll());

        return model;

    }

    @RequestMapping(value = "findById")

    public ModelAndView findById(String id){

        ModelAndView model = new ModelAndView("user/edit");

        if (id != null && !id.equals("") ) {

            model.addObject("user", userService.findById(id));

            List<UserSex> sexList=userSexService.findAll();

            model.addObject("usersex", sexList);

        }

        return model;

    }

    @RequestMapping(value = "editUser")

    @ResponseBody

    public Object editUser(User user){

        ResultUtils res = new ResultUtils();

        try{

            if (!user.getId().equals("")){

                userService.updateUser(user);

            } else {

                user.setId(UUIDUtils.getUUID());

                userService.insertUser(user);

            }

        }catch (Exception e){

            return res.errorResult();

        }

        return res.successResult();

    }

    @RequestMapping(value = "deleteById")

    @ResponseBody

    public Object deleteById(String id){

        ResultUtils res = new ResultUtils();

        try{

            userService.deleteById(id);

        }catch (Exception e){

            res.errorResult();

        }

        return res.successResult();

    }

}

八、创建页面文件

　　1.common.ftl

<link rel="icon" type="image/x-icon" href="${request.contextPath}/favicon/favicon.ico">

<link rel="stylesheet" href="${request.contextPath}/css/bootstrap.min.css">

<link rel="stylesheet" href="${request.contextPath}/css/bootstrap-theme.min.css">

<link rel="stylesheet" href="${request.contextPath}/css/fontAwesome.css">

<link rel="stylesheet" href="${request.contextPath}/css/light-box.css">

<link rel="stylesheet" href="${request.contextPath}/css/owl-carousel.css">

<link rel="stylesheet" href="${request.contextPath}/css/templatemo-style.css">

<link rel="stylesheet" href="${request.contextPath}/layer/skin/layer.css">

<script src="${request.contextPath}/js/jquery-3.3.1.min.js"></script>

<script src="${request.contextPath}/js/vendor/modernizr-2.8.3-respond-1.4.2.min.js"></script>

<script src="${request.contextPath}/js/vendor/jquery-1.11.2.min.js">

<script src="${request.contextPath}/js/vendor/bootstrap.min.js"></script>

<script src="${request.contextPath}/js/plugins.js"></script>

<script src="${request.contextPath}/layer/layer.js"></script>

<script src="${request.contextPath}/js/main.js"></script>

<script src="${request.contextPath}/js/my.js"></script>

　　2.list.ftl

<!DOCTYPE html>

<html lang="en">

<head>

  <meta charset="UTF-8">

  <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">

  <title>用户列表</title>

  <meta name="description" content="">

  <meta name="viewport" content="width=device-width, initial-scale=1">

  <#include "/common/common.ftl" />

</head>

<body>

    <header class="nav-down responsive-nav hidden-lg hidden-md">

        <button type="button" id="nav-toggle" class="navbar-toggle" data-toggle="collapse" data-target="#main-nav">

            <span class="sr-only">Toggle navigation</span>

            <span class="icon-bar"></span>

            <span class="icon-bar"></span>

            <span class="icon-bar"></span>

        </button>

        <div id="main-nav" class="collapse navbar-collapse">

            <nav>

                <ul class="nav navbar-nav">

                    <li><a href="#top">Home</a></li>

                </ul>

            </nav>

        </div>

    </header>

    <div class="sidebar-navigation hidde-sm hidden-xs">

        <div class="logo">

            <a href="#">Sen<em>tra</em></a>

        </div>

        <nav>

            <ul>

                <li>

                    <a href="#featured">

                        <span class="rect"></span>

                        <span class="circle"></span>

                            用户列表

                    </a>

                </li>

            </ul>

        </nav>

    </div>

    <div class="page-content">

        <section id="featured" class="content-section">

            <div class="section-heading">

                <h1>商品<br><em>列表</em></h1>

            </div>

            <div class="section-content">

                <div>

                    <button type="button" onclick="edit(0);" class="btn btn-info" style="position: relative;float: left;margin-bottom: 10px;">

                        添加

                    </button>

                </div>

                <table class="table table-striped">

                    <tr>

                        <td>商品名称</td>

                        <td>商品规格</td>

                        <td>温度</td>

                        <td>价格</td>

                        <td>商品描述</td>

                        <td>操作一</td>

                        <td>操作二</td>

                    </tr>

                    <#list userList as user>

                        <tr>

                            <td>${user.id}</td>

                            <td>${user.nickname}</td>

                            <td>${user.loginpassword}</td>

                            <td>${user.email}</td>

                            <td>商品描述</td>

                            <td>

                                <button type="button" class="btn btn-warning" onclick="edit('${(user.id)}');">

                                        修改

                                </button>

                            </td>

                            <td>

                                <button type="button" class="btn btn-danger" onclick="deleteById('${(user.id)!}')">

                                        删除

                                </button>

                            </td>

                        </tr>

                    </#list>

                </table>

            </div>

        </section>

        <section id="contact" class="content-section">

           </section>

    </div>

    <script>

        function edit(id) {

            var title = "新增商品";

            if (id != 0) {

                title = "编辑商品";

            }

            var ob = {

                title: "<label>"+title+"</label>",

                width: "800",

                height: "400",

                url: "findById?id="+id

            };

            my.open(ob);

        }

        function reload(){

            window.location.reload();

        }

        function deleteById(id) {

            my.confirm('是否确认删除?','是否确认删除?',function(){

                $.get("deleteById", {id: id}, function(data) {

                    if (data.success) {

                        layer.msg("删除成功!",

                                {icon:6,time:1000},

                                function(){

                                    reload();

                                })

                    } else {

                        my.alert('删除失败!');

                    }

                });

            });

        }

    </script>

</body>

</html>

　　3.edit.ftl

<!DOCTYPE html>

<html lang="en">

<#include "/common/common.ftl" />

<body>

<form class="form-horizontal" id="editForm" enctype="multipart/form-data">

    <input  type="hidden" name="id" value="${(user.id)!}" size=85/>

    <input  type="hidden" name="email" id="email" value="${(user.email)!}" size=85/>

    <div class="form-group">

        <label class="col-sm-2 control-label">商品名称</label>

        <div class="col-sm-4">

            <input type="text" class="form-control" name="nickname" value="${(user.nickname)!}">

        </div>

    </div>

    <div class="form-group">

        <label class="col-sm-2 control-label">商品规格</label>

        <div class="col-sm-4">

            <input type="text" class="form-control" name="loginpassword" value="${(user.loginpassword)!}">

        </div>

    </div>

    <div class="form-group">

        <label class="col-sm-2 control-label">温度</label>

        <div class="col-sm-4">

            <select class="form-control" id="selemail">

                <#list usersex as sex>

                    <#if sex.sexcode==user.email>

                        <option value="${sex.sexcode}" selected="selected">${sex.sexname}</option>

                    <#else>

                        <option value="${sex.sexcode}">${sex.sexname}</option>

                    </#if>

                </#list>

            </select>

        </div>

    </div>

    <div class="form-group">

        <div class="col-sm-offset-2 col-sm-10">

            <input onclick="submitForm();" class="btn btn-default" value="提交">

        </div>

    </div>

</form>

<script>

    $("#selemail").change(function(){

        $("#email").val($("#selemail").val());

    });

    function submitForm() {

        $.ajax({

            type: "POST",//方法类型

            dataType: "json",//预期服务器返回的数据类型

            url: "/user/editUser",

            data: $('#editForm').serialize(),

            success: function (data) {

                if (data.success) {

                    layer.msg("提交成功!",

                            {icon:6,time:1000},

                            function(){

                                parent.reload();

                            })

                }

            },

            error: function () {

                my.alert("提交失败！");

            }

        });

    }

</script>

</body>

</html>

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