[Code-Updates]:1、完成数据库配置;2、完成Mapper映射文件和接口文件

SpringBoot_HLS/.mvn/wrapper/MavenWrapperDownloader.java

@@ -14,9 +14,6 @@
  * limitations under the License.
  */
 
-import java.net.*;
-import java.io.*;
-import java.nio.channels.*;
 import java.util.Properties;
 
 public class MavenWrapperDownloader {

SpringBoot_HLS/pom.xml

@@ -19,6 +19,11 @@
     </properties>
 
     <dependencies>
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <version>8.0.17</version>
+        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-data-jdbc</artifactId>
@@ -55,7 +60,6 @@
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>
-            <scope>test</scope>
             <exclusions>
                 <exclusion>
                     <groupId>org.junit.vintage</groupId>

SpringBoot_HLS/src/main/java/org/hand/train/springboot/springboot/SpringbootApplication.java

 package org.hand.train.springboot.springboot;
 
+import org.mybatis.spring.annotation.MapperScan;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 
 @SpringBootApplication
+@MapperScan("org.hand.train.springboot.springboot.mapper")
 public class SpringbootApplication {
 
     public static void main(String[] args) {

SpringBoot_HLS/src/main/java/org/hand/train/springboot/springboot/bean/UserInfo.java

+package org.hand.train.springboot.springboot.bean;
+
+import lombok.Data;
+
+import java.sql.Date;
+
+/**
+ * UserInfo
+ * <p>
+ * encoding:UTF-8
+ *
+ * @author Fcant
+ * @date 17:16 2019/12/3
+ */
+@Data
+public class UserInfo {
+    private int userId;
+    private String userName;
+    private int age;
+    private Date createTime;
+}

SpringBoot_HLS/src/main/java/org/hand/train/springboot/springboot/controller/UserController.java

+package org.hand.train.springboot.springboot.controller;
+
+import org.hand.train.springboot.springboot.bean.UserInfo;
+import org.hand.train.springboot.springboot.service.impl.UserServiceImpl;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+/**
+ * UserController
+ * <p>
+ * encoding:UTF-8
+ *
+ * @author Fcant
+ * @date 17:25 2019/12/3
+ */
+@RestController
+public class UserController {
+
+    @Autowired
+    UserServiceImpl userService;
+
+    /**
+     * 查询所有用户
+     *
+     * @return List<UserInfo>
+     * @author Fcant
+     * @date 18:39 2019/12/3
+     */
+    @GetMapping("/getall")
+    public List<UserInfo> selectAllUser() {
+        return userService.selectAllUser();
+    }
+
+    /**
+     * 根据用户ID查询用户信息
+     *
+     * @param id
+     * @return UserInfo
+     * @author Fcant
+     * @date 18:40 2019/12/3
+     */
+    @GetMapping("/get/{id}")
+    UserInfo selectUserById(@PathVariable int id) {
+        return userService.selectUserById(id);
+    }
+
+    /**
+     * 添加用户
+     *
+     * @param userInfo
+     * @return int
+     * @author Fcant
+     * @date 18:40 2019/12/3
+     */
+    @PostMapping("/add")
+    int addUser(@RequestBody UserInfo userInfo) {
+        return userService.addUser(userInfo);
+    }
+
+    /**
+     * 更新用户信息
+     *
+     * @param userInfo
+     * @return int
+     * @author Fcant
+     * @date 18:41 2019/12/3
+     */
+    @PutMapping("/update")
+    int updateUser(@RequestBody UserInfo userInfo) {
+        return userService.updateUser(userInfo);
+    }
+
+    /**
+     * 删除用户
+     *
+     * @param userInfo
+     * @return int
+     * @author Fcant
+     * @date 18:41 2019/12/3
+     */
+    @DeleteMapping("/del")
+    int delUser(@RequestBody UserInfo userInfo) {
+        return userService.delUser(userInfo);
+    }
+}

SpringBoot_HLS/src/main/java/org/hand/train/springboot/springboot/mapper/UserMapper.java

+package org.hand.train.springboot.springboot.mapper;
+
+import org.hand.train.springboot.springboot.bean.UserInfo;
+
+import java.util.List;
+
+/**
+ * UserMapper
+ * <p>
+ * encoding:UTF-8
+ *
+ * @author Fcant
+ * @date 17:20 2019/12/3
+ */
+public interface UserMapper {
+
+    /**
+     * 查询所有用户
+     *
+     * @return List<UserInfo>
+     * @author Fcant
+     * @date 18:39 2019/12/3
+     */
+    List<UserInfo> selectAllUser();
+
+    /**
+     * 根据用户ID查询用户信息
+     *
+     * @param id
+     * @return UserInfo
+     * @author Fcant
+     * @date 18:40 2019/12/3
+     */
+    UserInfo selectUserById(int id);
+
+    /**
+     * 添加用户
+     *
+     * @param userInfo
+     * @return int
+     * @author Fcant
+     * @date 18:40 2019/12/3
+     */
+    int addUser(UserInfo userInfo);
+
+    /**
+     * 更新用户信息
+     *
+     * @param userInfo
+     * @return int
+     * @author Fcant
+     * @date 18:41 2019/12/3
+     */
+    int updateUser(UserInfo userInfo);
+
+    /**
+     * 删除用户
+     *
+     * @param userInfo
+     * @return int
+     * @author Fcant
+     * @date 18:41 2019/12/3
+     */
+    int delUser(UserInfo userInfo);
+}

SpringBoot_HLS/src/main/java/org/hand/train/springboot/springboot/service/UserService.java

+package org.hand.train.springboot.springboot.service;
+
+import org.hand.train.springboot.springboot.bean.UserInfo;
+
+import java.util.List;
+
+/**
+ * UserService
+ * <p>
+ * encoding:UTF-8
+ *
+ * @author Fcant
+ * @date 17:25 2019/12/3
+ */
+public interface UserService {
+
+    /**
+     * 查询所有用户
+     *
+     * @return List<UserInfo>
+     * @author Fcant
+     * @date 18:39 2019/12/3
+     */
+    List<UserInfo> selectAllUser();
+
+    /**
+     * 根据用户ID查询用户信息
+     *
+     * @param id
+     * @return UserInfo
+     * @author Fcant
+     * @date 18:40 2019/12/3
+     */
+    UserInfo selectUserById(int id);
+
+    /**
+     * 添加用户
+     *
+     * @param userInfo
+     * @return int
+     * @author Fcant
+     * @date 18:40 2019/12/3
+     */
+    int addUser(UserInfo userInfo);
+
+    /**
+     * 更新用户信息
+     *
+     * @param userInfo
+     * @return int
+     * @author Fcant
+     * @date 18:41 2019/12/3
+     */
+    int updateUser(UserInfo userInfo);
+
+    /**
+     * 删除用户
+     *
+     * @param userInfo
+     * @return int
+     * @author Fcant
+     * @date 18:41 2019/12/3
+     */
+    int delUser(UserInfo userInfo);
+}

SpringBoot_HLS/src/main/java/org/hand/train/springboot/springboot/service/impl/UserServiceImpl.java

+package org.hand.train.springboot.springboot.service.impl;
+
+import org.hand.train.springboot.springboot.bean.UserInfo;
+import org.hand.train.springboot.springboot.mapper.UserMapper;
+import org.hand.train.springboot.springboot.service.UserService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+/**
+ * UserServiceImpl
+ * <p>
+ * encoding:UTF-8
+ *
+ * @author Fcant
+ * @date 17:27 2019/12/3
+ */
+@Service
+public class UserServiceImpl implements UserService {
+
+    @Autowired
+    UserMapper userMapper;
+
+    @Override
+    public List<UserInfo> selectAllUser() {
+        return userMapper.selectAllUser();
+    }
+
+    @Override
+    public UserInfo selectUserById(int id) {
+        return userMapper.selectUserById(id);
+    }
+
+    @Override
+    public int addUser(UserInfo userInfo) {
+        return userMapper.addUser(userInfo);
+    }
+
+    @Override
+    public int updateUser(UserInfo userInfo) {
+        return userMapper.updateUser(userInfo);
+    }
+
+    @Override
+    public int delUser(UserInfo userInfo) {
+        return userMapper.delUser(userInfo);
+    }
+}

SpringBoot_HLS/src/main/resources/application.yml

+spring:
+  datasource:
+    url: jdbc:mysql:///hls_train?serverTimezone=UTC
+    username: root
+    password: 123456
+    driver-class-name: com.mysql.cj.jdbc.Driver
+mybatis:
+  mapper-locations: classpath:mapper/*.xml
\ No newline at end of file

SpringBoot_HLS/src/main/resources/mapper/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="org.hand.train.springboot.springboot.mapper.UserMapper">
+
+    <resultMap id="BaseResult" type="org.hand.train.springboot.springboot.bean.UserInfo">
+        <id column="user_id" javaType="int" property="userId"></id>
+        <result column="user_name" javaType="String" property="userName"/>
+        <result column="age" javaType="int" property="age"/>
+        <result column="create_time" javaType="java.sql.Date" property="createTime"/>
+    </resultMap>
+
+    <select id="selectAllUser" resultMap="BaseResult">
+        SELECT
+            user_id,
+            user_name,
+            age,
+            create_time
+        FROM
+	        user_info
+    </select>
+
+    <select id="selectUserById" parameterType="int" resultMap="BaseResult">
+        SELECT
+            user_id,
+            user_name,
+            age,
+            create_time
+        FROM
+            user_info
+        WHERE
+            user_id =#{id}
+    </select>
+
+    <insert id="addUser" keyProperty="userId" useGeneratedKeys="true" parameterType="org.hand.train.springboot.springboot.bean.UserInfo">
+        INSERT INTO user_info(user_id, user_name, age, create_time)
+        VALUES (#{userId}, #{userName}, #{age}, #{createTime})
+    </insert>
+
+    <update id="updateUser" parameterType="org.hand.train.springboot.springboot.bean.UserInfo">
+        UPDATE
+        user_info
+        set
+        user_name = #{userName},
+        age= #{age}
+        WHERE user_id= #{userId}
+    </update>
+
+    <delete id="delUser" parameterType="org.hand.train.springboot.springboot.bean.UserInfo">
+        DELETE FROM
+        user_info
+        WHERE user_id=#{userId}
+    </delete>
+</mapper>
\ No newline at end of file