SpringBoot08

.idea/dataSources.xml

@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="DataSourceManagerImpl" format="xml" multifile-model="true">
-    <data-source source="LOCAL" name="mysql@192.168.0.2" uuid="ecc94c92-1fe7-4051-b991-974101f0fd33">
+    <data-source source="LOCAL" name="SpringBoot@localhost" uuid="ecc94c92-1fe7-4051-b991-974101f0fd33">
       <driver-ref>mysql.8</driver-ref>
       <synchronize>true</synchronize>
       <jdbc-driver>com.mysql.cj.jdbc.Driver</jdbc-driver>
-      <jdbc-url>jdbc:mysql://192.168.0.2:3306/mysql</jdbc-url>
+      <jdbc-url>jdbc:mysql://localhost:3306/SpringBoot?useSSL=false&amp;useUnicode=true&amp;characterEncoding=UTF-8&amp;serverTimezone=Asia/Shanghai</jdbc-url>
       <working-dir>$ProjectFileDir$</working-dir>
     </data-source>
   </component>

SpringBoot03/src/main/java/com/msb/springboot03/SpringBoot03Application.java

@@ -2,6 +2,8 @@ package com.msb.springboot03;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.ComponentScan;
+
 
 @SpringBootApplication
 public class SpringBoot03Application {

SpringBoot03/src/main/java/com/msb/springboot03/controller/UserController.java

@@ -0,0 +1,23 @@
+package com.msb.springboot03.controller;
+
+import com.msb.springboot03.pojo.User;
+import com.msb.springboot03.service.UserService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+import java.util.List;
+
+@Controller
+@RequestMapping("/user")
+public class UserController {
+
+    @Autowired
+    private UserService userService;
+    @RequestMapping("findAllUser")
+    @ResponseBody
+    public List<User> findAllUser(){
+        return userService.findAllUser();
+    }
+}

SpringBoot03/src/main/java/com/msb/springboot03/mapper/UserMapper.java

@@ -0,0 +1,11 @@
+package com.msb.springboot03.mapper;
+
+import com.msb.springboot03.pojo.User;
+import org.apache.ibatis.annotations.Mapper;
+
+import java.util.List;
+
+@Mapper
+public interface UserMapper {
+    List<User> selectAll();
+}

SpringBoot03/src/main/java/com/msb/springboot03/pojo/User.java

@@ -0,0 +1,16 @@
+package com.msb.springboot03.pojo;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.io.Serializable;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class User implements Serializable {
+    private Integer userId;
+    private String userName;
+    private String password;
+}

SpringBoot03/src/main/java/com/msb/springboot03/service/UserService.java

@@ -0,0 +1,11 @@
+package com.msb.springboot03.service;
+
+import com.msb.springboot03.pojo.User;
+import org.springframework.stereotype.Component;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+public interface UserService {
+    List<User> findAllUser();
+}

SpringBoot03/src/main/java/com/msb/springboot03/service/impl/UserServiceImpl.java

@@ -0,0 +1,21 @@
+package com.msb.springboot03.service.impl;
+
+import com.msb.springboot03.mapper.UserMapper;
+import com.msb.springboot03.pojo.User;
+import com.msb.springboot03.service.UserService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+public class UserServiceImpl implements UserService {
+
+    @Autowired
+    private UserMapper userMapper;
+
+    @Override
+    public List<User> findAllUser() {
+        return userMapper.selectAll();
+    }
+}

SpringBoot03/src/main/resources/application.yml

@@ -5,6 +5,9 @@ server:
 spring:
   datasource:
     driver-class-name: com.mysql.cj.jdbc.Driver
-    password:
+    username: root
-    hikari:
+    password: Nakamino
-      jdbc-url:
+    url: jdbc:mysql://localhost:3306/SpringBoot?useSSL=false&useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai
+mybatis:
+  type-aliases-package: com.msb.springboot03.pojo
+  mapper-locations: classpath:mapper/*.xml

SpringBoot03/src/main/resources/mapper/UserMapper.xml

@@ -0,0 +1,7 @@
+<?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.msb.springboot03.mapper.UserMapper">
+    <select id="selectAll" resultType="User">
+        SELECT * FROM USER
+    </select>
+</mapper>