1.    新建Maven项目  spring-boot

2.    pom.xml

  1. <project xmlns="http://maven.apache.org/POM/4.0.0"
  2.     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  3.     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
  4.         http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.  
  6.     <modelVersion>4.0.0</modelVersion>
  7.     <groupId>com.java</groupId>
  8.     <artifactId>spring-boot</artifactId>
  9.     <version>1.0.0</version>
  10.  
  11.     <parent>
  12.         <groupId>org.springframework.boot</groupId>
  13.         <artifactId>spring-boot-starter-parent</artifactId>
  14.         <version>2.0.5.RELEASE</version>
  15.     </parent>
  16.  
  17.     <dependencies>
  18.  
  19.         <!-- Spring Boot -->
  20.         <dependency>
  21.             <groupId>org.springframework.boot</groupId>
  22.             <artifactId>spring-boot-starter-web</artifactId>
  23.             <exclusions>
  24.                 <exclusion>
  25.                     <groupId>org.springframework.boot</groupId>
  26.                     <artifactId>spring-boot-starter-logging</artifactId>
  27.                 </exclusion>
  28.             </exclusions>
  29.         </dependency>
  30.         <dependency>
  31.             <groupId>org.springframework.boot</groupId>
  32.             <artifactId>spring-boot-starter-log4j</artifactId>
  33.             <version>1.3.8.RELEASE</version>
  34.         </dependency>
  35.         <dependency>
  36.             <groupId>org.springframework.boot</groupId>
  37.             <artifactId>spring-boot-starter-thymeleaf</artifactId>
  38.         </dependency>
  39.  
  40.         <dependency>
  41.             <groupId>org.mybatis.spring.boot</groupId>
  42.             <artifactId>mybatis-spring-boot-starter</artifactId>
  43.             <version>2.0.1</version>
  44.         </dependency>
  45.  
  46.         <!-- 数据库连接池 -->
  47.         <dependency>
  48.             <groupId>com.alibaba</groupId>
  49.             <artifactId>druid</artifactId>
  50.             <version>1.1.11</version>
  51.         </dependency>
  52.         <dependency>
  53.             <groupId>mysql</groupId>
  54.             <artifactId>mysql-connector-java</artifactId>
  55.         </dependency>
  56.  
  57.     </dependencies>
  58.  
  59.     <build>
  60.         <finalName>${project.artifactId}</finalName>
  61.         <plugins>
  62.             <plugin>
  63.                 <groupId>org.apache.maven.plugins</groupId>
  64.                 <artifactId>maven-compiler-plugin</artifactId>
  65.                 <configuration>
  66.                     <source>1.8</source>
  67.                     <target>1.8</target>
  68.                     <encoding>UTF-8</encoding>
  69.                 </configuration>
  70.             </plugin>
  71.  
  72.             <plugin>
  73.                 <groupId>org.springframework.boot</groupId>
  74.                 <artifactId>spring-boot-maven-plugin</artifactId>
  75.                 <executions>
  76.                     <execution>
  77.                         <goals>
  78.                             <goal>repackage</goal>
  79.                         </goals>
  80.                     </execution>
  81.                 </executions>
  82.             </plugin>
  83.         </plugins>
  84.     </build>
  85. </project>

3.   启动类 Starter.java

  1. package com.java.springboot;
  2.  
  3. import org.springframework.boot.SpringApplication;
  4. import org.springframework.boot.autoconfigure.SpringBootApplication;
  5. import org.springframework.boot.builder.SpringApplicationBuilder;
  6. import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
  7.  
  8. /**
  9.  * 启动类
  10.  *
  11.  * @author Logan
  12.  * @version 1.0.0
  13.  *
  14.  */
  15. @SpringBootApplication
  16. public class Starter extends SpringBootServletInitializer {
  17.  
  18.     public static void main(String[] args) {
  19.         SpringApplication.run(Starter.class, args);
  20.     }
  21.  
  22.     @Override
  23.     protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
  24.         return builder.sources(Starter.class);
  25.     }
  26.  
  27. }

4.   User.java

  1. package com.java.springboot.pojo;
  2.  
  3. public class User {
  4.     private String id;
  5.  
  6.     private String username;
  7.  
  8.     private String password;
  9.  
  10.     private Integer age;
  11.  
  12.     public String getId() {
  13.         return id;
  14.     }
  15.  
  16.     public void setId(String id) {
  17.         this.id = id;
  18.     }
  19.  
  20.     public String getUsername() {
  21.         return username;
  22.     }
  23.  
  24.     public void setUsername(String username) {
  25.         this.username = username;
  26.     }
  27.  
  28.     public String getPassword() {
  29.         return password;
  30.     }
  31.  
  32.     public void setPassword(String password) {
  33.         this.password = password;
  34.     }
  35.  
  36.     public Integer getAge() {
  37.         return age;
  38.     }
  39.  
  40.     public void setAge(Integer age) {
  41.         this.age = age;
  42.     }
  43.  
  44.     @Override
  45.     public String toString() {
  46.         return "User [id=" + id + ", username=" + username + ", password=" + password + ", age=" + age + "]";
  47.     }
  48.  
  49. }

5.   UserMapper.java

  1. package com.java.springboot.mapper;
  2.  
  3. import java.util.List;
  4.  
  5. import com.java.springboot.pojo.User;
  6.  
  7. public interface UserMapper {
  8.  
  9.     Integer checkLogin(User user);
  10.  
  11.     List<User> findUserList(User user);
  12.  
  13.     void addUser(User user);
  14.  
  15.     void updateUser(User user);
  16.  
  17.     void deleteUser(User user);
  18.  
  19. }

6.   UserMapper.xml

  1. <?xml version="1.0" encoding="UTF-8" ?>
  2. <!DOCTYPE mapper
  3. PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
  4. "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
  5.  
  6. <mapper namespace="com.java.springboot.mapper.UserMapper">
  7.  
  8.     <!-- 配置数据库字段和实体类映射 -->
  9.     <resultMap id="userMap" type="com.java.springboot.pojo.User">
  10.         <id property="id" column="id" />
  11.         <result property="username" column="username" />
  12.         <result property="password" column="password" />
  13.         <result property="age" column="age" />
  14.     </resultMap>
  15.  
  16.     <!-- 检查登录 -->
  17.     <select id="checkLogin" parameterType="com.java.springboot.pojo.User" resultType="java.lang.Integer">
  18.         select 1 from user where username=#{username} and password=#{password}
  19.     </select>
  20.  
  21.     <!-- 查询用户列表 -->
  22.     <select id="findUserList" parameterType="com.java.springboot.pojo.User" resultType="com.java.springboot.pojo.User">
  23.         select id,username,password,age from user
  24.     </select>
  25.  
  26.     <!-- 新增用户 -->
  27.     <insert id="addUser" parameterType="com.java.springboot.pojo.User" >
  28.         <selectKey keyProperty="id" order="BEFORE" resultType="java.lang.String">
  29.             select replace(uuid(), '-', '') as id from dual
  30.         </selectKey>
  31.         insert into user(id,username,password,age) values(#{id},#{username},#{password},#{age});
  32.     </insert>
  33.  
  34.     <!-- 修改用户信息 -->
  35.     <update id="updateUser" parameterType="com.java.springboot.pojo.User" >
  36.         update user set username=#{username}, password=#{password}, age=#{age} where id=#{id}
  37.     </update>
  38.  
  39.     <!-- 根据id删除用户 -->
  40.     <delete id="deleteUser" parameterType="java.lang.String">
  41.         delete from user where id=#{id}
  42.     </delete>
  43.  
  44. </mapper>

7、UserService.java

  1. package com.java.springboot.service;
  2.  
  3. import java.util.List;
  4.  
  5. import com.java.springboot.pojo.User;
  6.  
  7. public interface UserService {
  8.  
  9.     Integer checkLogin(User user);
  10.  
  11.     List<User> findUserList(User user);
  12.  
  13.     void addOrUpdateUser(User user);
  14.  
  15.     void deleteUser(User user);
  16.  
  17. }

8、UserServiceImpl.java

  1. package com.java.springboot.service.impl;
  2.  
  3. import java.util.List;
  4.  
  5. import org.springframework.beans.factory.annotation.Autowired;
  6. import org.springframework.stereotype.Service;
  7. import org.springframework.transaction.annotation.Transactional;
  8.  
  9. import com.java.springboot.mapper.UserMapper;
  10. import com.java.springboot.pojo.User;
  11. import com.java.springboot.service.UserService;
  12.  
  13. @Service("userService")
  14. public class UserServiceImpl implements UserService {
  15.  
  16.     @Autowired
  17.     private UserMapper userMapper;
  18.  
  19.     @Override
  20.     public Integer checkLogin(User user) {
  21.         return userMapper.checkLogin(user);
  22.     }
  23.  
  24.     @Override
  25.     public List<User> findUserList(User user) {
  26.         return userMapper.findUserList(user);
  27.     }
  28.  
  29.     @Override
  30.     @Transactional
  31.     public void addOrUpdateUser(User user) {
  32.         if (null == user.getId() || user.getId().isEmpty()) {
  33.             userMapper.addUser(user);
  34.         } else {
  35.             userMapper.updateUser(user);
  36.         }
  37.     }
  38.  
  39.     @Override
  40.     @Transactional
  41.     public void deleteUser(User user) {
  42.         userMapper.deleteUser(user);
  43.     }
  44.  
  45. }

9、UserController.java

  1. package com.java.springboot.controller;
  2.  
  3. import java.util.List;
  4.  
  5. import org.apache.commons.logging.Log;
  6. import org.apache.commons.logging.LogFactory;
  7. import org.springframework.beans.factory.annotation.Autowired;
  8. import org.springframework.stereotype.Controller;
  9. import org.springframework.ui.Model;
  10. import org.springframework.web.bind.annotation.RequestMapping;
  11. import org.springframework.web.bind.annotation.ResponseBody;
  12.  
  13. import com.java.springboot.pojo.User;
  14. import com.java.springboot.service.UserService;
  15.  
  16. @Controller
  17. @RequestMapping("/user")
  18. public class UserController {
  19.  
  20.     private static final Log LOG = LogFactory.getLog(UserController.class);
  21.  
  22.     @Autowired
  23.     private UserService userService;
  24.  
  25.     @RequestMapping("/login")
  26.     public String login() {
  27.         return "user/login";
  28.     }
  29.  
  30.     @RequestMapping("/checkLogin")
  31.     public String checkLogin(User user, Model model) {
  32.         LOG.info("Into checkLogin");
  33.         System.out.println(user);
  34.  
  35.         String responseUrl = null;
  36.  
  37.         // 检查用户名密码是否存在
  38.         Integer result = userService.checkLogin(user);
  39.         System.out.println("result: " + result);
  40.         LOG.info("result: " + result);
  41.  
  42.         // 绑定用户名密码输出返回
  43.         if (null == result) {
  44.             model.addAttribute("username", user.getUsername());
  45.             model.addAttribute("password", user.getPassword());
  46.             responseUrl = "user/login";
  47.         }
  48.  
  49.         // 登录成功，访问主页
  50.         else {
  51.             responseUrl = "user/main";
  52.         }
  53.  
  54.         LOG.info("Exit checkLogin");
  55.         return responseUrl;
  56.  
  57.     }
  58.  
  59.     @ResponseBody
  60.     @RequestMapping("/findUserList")
  61.     public List<User> findUserList(User user) {
  62.         LOG.info("Into findUserList");
  63.         System.out.println(user);
  64.  
  65.         List<User> list = userService.findUserList(user);
  66.  
  67.         LOG.info("Exit findUserList");
  68.         return list;
  69.     }
  70.  
  71.     @RequestMapping("/toAddOrUpdateUser")
  72.     public String toAddOrUpdateUser(User user, Model model) {
  73.         LOG.info("Into toAddOrUpdateUser");
  74.         System.out.println("user: " + user);
  75.  
  76.         // 输出id，根据id是否为空，判断是新增还是修改
  77.         model.addAttribute("user", user);
  78.         LOG.info("Exit toAddOrUpdateUser");
  79.         return "user/addOrUpdateUser";
  80.     }
  81.  
  82.     @RequestMapping("/addOrUpdate")
  83.     public String addOrUpdate(User user) {
  84.         LOG.info("Into addOrUpdate");
  85.         System.out.println("user: " + user);
  86.  
  87.         userService.addOrUpdateUser(user);
  88.  
  89.         System.out.println(user);
  90.         LOG.info("Exit addOrUpdate");
  91.  
  92.         return "user/main";
  93.  
  94.     }
  95.  
  96.     @ResponseBody
  97.     @RequestMapping("/deleteUser")
  98.     public String deleteUser(User user) {
  99.         System.out.println(user);
  100.         LOG.info("Into deleteUser");
  101.  
  102.         userService.deleteUser(user);
  103.  
  104.         LOG.info("Exit deleteUser");
  105.         return "删除成功！";
  106.     }
  107.  
  108. }

10、ApplicationConfig.java

  1. package com.java.springboot.config;
  2.  
  3. import org.mybatis.spring.annotation.MapperScan;
  4. import org.springframework.context.annotation.Configuration;
  5.  
  6. /**
  7.  * 配置类
  8.  *
  9.  * @author Logan
  10.  * @version 1.0.0
  11.  *
  12.  */
  13. @Configuration
  14. @MapperScan({ "com.java.springboot.mapper" })
  15. public class ApplicationConfig {
  16.  
  17. }

11、src/main/resources 下配置文件

12、application.properties

  1. server.port=8080
  2.  
  3. #数据库自动配置
  4. spring.datasource.driver-class-name=com.mysql.jdbc.Driver
  5. spring.datasource.url=jdbc:mysql://192.168.32.10:3306/springboot?useUnicode=true&characterEncoding=UTF-8
  6. spring.datasource.username=root
  7. spring.datasource.password=123456
  8. spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
  9.  
  10. #Thymeleaf 参见org.springframework.boot.autoconfigure.thymeleaf.ThymeleafProperties
  11. spring.thymeleaf.prefix=classpath:/views/
  12. spring.thymeleaf.suffix=.html

13、log4j.properties

  1. log4j.rootLogger= INFO, stdout,logfile
  2. log4j.logger.INFO=INFO,logfile
  3.  
  4. log4j.appender.stdout=org.apache.log4j.ConsoleAppender
  5. log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
  6. log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH\:mm\:ss.SSS} [%5p] [%c] - %m%n
  7.  
  8. log4j.appender.logfile=org.apache.log4j.DailyRollingFileAppender
  9. log4j.appender.logfile.File=G:/Java/logs/springboot/LogFile.log
  10. log4j.appender.logfile.DatePattern='_'yyyy-MM-dd'.log'
  11. log4j.appender.logfile.Threshold=INFO
  12. log4j.appender.logfile.layout=org.apache.log4j.PatternLayout
  13. log4j.appender.logfile.layout.ConversionPattern=%d{yyyy-MM-dd HH\:mm\:ss} [%5p] - %m%n
  14. log4j.appender.logfile.Append=true

14、/static/index.html

  1. <!DOCTYPE html>
  2. <html>
  3.  
  4.     <head>
  5.  
  6.         <title>登录</title>
  7.         <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
  8.         <script type="text/javascript">
  9.             function addUser() {
  10.                 location.href = "/user/toAddOrUpdateUser";
  11.             }
  12.         </script>
  13.     </head>
  14.  
  15.     <body>
  16.         <form action="/user/checkLogin" method="post">
  17.             <table>
  18.                 <tr>
  19.                     <td>用户名：</td>
  20.                     <td><input name="username" /><br /></td>
  21.                 </tr>
  22.                 <tr>
  23.                     <td>密码：</td>
  24.                     <td><input type="password" name="password" /><br /></td>
  25.                 </tr>
  26.                 <tr>
  27.                     <td><input type="submit" value="登录" /></td>
  28.                     <td><input type="button" value="注册" onclick="addUser();" /></td>
  29.                 </tr>
  30.             </table>
  31.  
  32.         </form>
  33.  
  34.     </body>
  35.  
  36. </html>

15、/views/user/login.html

  1. <!DOCTYPE html>
  2. <html xmlns:th="http://www.thymeleaf.org">
  3.  
  4.     <head>
  5.  
  6.         <title>登录</title>
  7.         <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
  8.         <script type="text/javascript">
  9.             function addUser() {
  10.                 location.href = "/user/toAddOrUpdateUser";
  11.             }
  12.         </script>
  13.     </head>
  14.  
  15.     <body>
  16.         <form action="/user/checkLogin" method="post">
  17.             <table>
  18.                 <tr>
  19.                     <td>用户名：</td>
  20.                     <td><input name="username" th:value="${username}" /><br /></td>
  21.                 </tr>
  22.                 <tr>
  23.                     <td>密码：</td>
  24.                     <td><input type="password" name="password" th:value="${password}" /><br /></td>
  25.                 </tr>
  26.                 <tr>
  27.                     <td><input type="submit" value="登录" /></td>
  28.                     <td><input type="button" value="注册" onclick="addUser();" /></td>
  29.                 </tr>
  30.             </table>
  31.  
  32.         </form>
  33.  
  34.     </body>
  35.  
  36. </html>

16、/views/user/main.html

  1. <!DOCTYPE html>
  2. <html>
  3.  
  4.     <head>
  5.  
  6.         <title>主页</title>
  7.         <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
  8.         <script src="/js/jquery-3.3.1.min.js"></script>
  9.         <style type="text/css">
  10.             td,
  11.             th {
  12.                 border: 1px solid #AAA;
  13.             }
  14.         </style>
  15.         <script type="text/jscript">
  16.             $(function() {
  17.                 queryUserList();
  18.             });
  19.  
  20.             function queryUserList() {
  21.                 $.post("/user/findUserList", {
  22.                     id: 1
  23.                 }, function(data) {
  24.                     var userList = data;
  25.                     var line = null;
  26.                     $("#list").empty();
  27.                     for(var i in userList) {
  28.                         line = tr(td(userList[i].id) + td(userList[i].username) + td(userList[i].password) + td(userList[i].age) + td(addBtn() + delBtn()));
  29.                         $("#list").append(line);
  30.                     }
  31.                 });
  32.             }
  33.  
  34.             function tr(text) {
  35.                 return "<tr>" + text + "</tr>";
  36.             }
  37.  
  38.             function td(text) {
  39.                 if(!text) {
  40.                     text = "";
  41.                 }
  42.                 return "<td>" + text + "</td>";
  43.             }
  44.  
  45.             function addBtn() {
  46.                 return "<button onClick='update(this);'>修改</button>";
  47.             }
  48.  
  49.             function delBtn() {
  50.                 return "<button onClick='deleteUser(this);'>删除</button>";
  51.             }
  52.  
  53.             function update(obj) {
  54.                 var row = getRow(obj);
  55.  
  56.                 var user = {
  57.                     id: row.eq(0).text(),
  58.                     username: row.eq(1).text(),
  59.                     password: row.eq(2).text(),
  60.                     age: row.eq(3).text()
  61.                 }
  62.  
  63.                 var form = document.createElement("form");
  64.                 form.action = "/user/toAddOrUpdateUser";
  65.                 form.method = "post";
  66.  
  67.                 var input = null;
  68.                 for(var key in user) {
  69.                     input = document.createElement("input");
  70.  
  71.                     input.type = "hidden";
  72.                     input.name = key;
  73.                     input.value = user[key];
  74.                     form.appendChild(input)
  75.                 }
  76.                 document.body.appendChild(form);
  77.                 form.submit();
  78.  
  79.             }
  80.  
  81.             function deleteUser(obj) {
  82.                 var row = getRow(obj);
  83.  
  84.                 var id = row.eq(0).text();
  85.                 $.post("/user/deleteUser", {
  86.                     id: id
  87.                 }, function(data) {
  88.                     alert(data);
  89.                     queryUserList();
  90.                 });
  91.             }
  92.  
  93.             function getRow(obj) {
  94.                 return $(obj).parent().parent().children();
  95.             }
  96.         </script>
  97.     </head>
  98.  
  99.     <body>
  100.         <button onClick="location.href='/user/toAddOrUpdateUser'">新增</button>
  101.         <div>
  102.             <table style="border-collapse: collapse; width: 800px;">
  103.                 <thead>
  104.                     <tr>
  105.                         <th>ID</th>
  106.                         <th>用户名</th>
  107.                         <th>密码</th>
  108.                         <th>年龄</th>
  109.                         <th>操作</th>
  110.                     </tr>
  111.                 </thead>
  112.                 <tbody id="list">
  113.                 </tbody>
  114.             </table>
  115.         </div>
  116.  
  117.     </body>
  118.  
  119. </html>

17、/views/user/addOrUpdateUser.html

  1. <!DOCTYPE html>
  2. <html xmlns:th="http://www.thymeleaf.org">
  3.  
  4.     <head>
  5.  
  6.         <title>新增用户</title>
  7.         <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
  8.     </head>
  9.  
  10.     <body>
  11.         <form action="/user/addOrUpdate" method="post">
  12.             <input name="id" th:value="${user.id}" type="hidden" />
  13.             <table>
  14.                 <tr>
  15.                     <td>用户名：</td>
  16.                     <td><input type="text" name="username" th:value="${user.username}" /><br /></td>
  17.                 </tr>
  18.                 <tr>
  19.                     <td>密码：</td>
  20.                     <td><input type="password" name="password" th:value="${user.password}" /><br /></td>
  21.                 </tr>
  22.                 <tr>
  23.                     <td>年龄：</td>
  24.                     <td><input type="text" name="age" th:value="${user.age}" /><br /></td>
  25.                 </tr>
  26.                 <tr>
  27.                     <td colspan="2"><input type="submit" value="提交" /></td>
  28.                 </tr>
  29.             </table>
  30.  
  31.         </form>
  32.  
  33.     </body>
  34.  
  35. </html>

18.    创建数据库

  1. DROP DATABASE IF EXISTS springboot;
  2. CREATE DATABASE springboot;
  3. USE springboot;
  4. DROP TABLE IF EXISTS `user`;
  5. CREATE TABLE `user` (
  6.   `id` varchar(32) NOT NULL,
  7.   `username` varchar(32) NOT NULL,
  8.   `password` varchar(32) NOT NULL,
  9.   `age` int(3) DEFAULT NULL,
  10.   PRIMARY KEY (`id`)
  11. ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
  12.  
  13. ;

注意：

jquery-3.3.1.min.js 请自行下载，配置到Main.jsp文件中

https://code.jquery.com/jquery-3.3.1.min.js
    http://code.jquery.com/jquery-3.3.1.min.js

打开网址，Ctrl + S 保存文件

配置完成！

运行   Starter.java   ，在浏览器输入下面地址访问

http://127.0.0.1:8080

.

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