feat(core): mybatis-plus 接入

pom.xml

@@ -26,12 +26,31 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
         </dependency>
+
+        <!--数据校验-->
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-validation</artifactId>
         </dependency>
+
+        <!--db-->
+        <dependency>
+            <groupId>com.baomidou</groupId>
+            <artifactId>mybatis-plus-spring-boot3-starter</artifactId>
+            <version>3.5.6</version>
+        </dependency>
+        <dependency>
+            <groupId>com.alibaba</groupId>
+            <artifactId>druid-spring-boot-3-starter</artifactId>
+            <version>1.2.21</version>
+        </dependency>
+        <dependency>
+            <groupId>com.mysql</groupId>
+            <artifactId>mysql-connector-j</artifactId>
+        </dependency>
     </dependencies>
 
+
     <build>
         <plugins>
             <plugin>

src/main/java/org/linker/springboot/SpringbootApplication.java

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

src/main/java/org/linker/springboot/config/SpringMVCConfiguration.java

@@ -32,11 +32,11 @@ public class SpringMVCConfiguration implements WebMvcConfigurer {
 
     @Override
     public void addInterceptors(InterceptorRegistry registry) {
-        // 拦截器一
-        registry.addInterceptor(this.firstInterceptor()).addPathPatterns("/**");
-        // 拦截器二
-        registry.addInterceptor(this.secondInterceptor()).addPathPatterns("/users/current_user");
-        // 拦截器三
-        registry.addInterceptor(this.thirdInterceptor()).addPathPatterns("/**");
+//        // 拦截器一
+//        registry.addInterceptor(this.firstInterceptor()).addPathPatterns("/**");
+//        // 拦截器二
+//        registry.addInterceptor(this.secondInterceptor()).addPathPatterns("/users/current_user");
+//        // 拦截器三
+//        registry.addInterceptor(this.thirdInterceptor()).addPathPatterns("/**");
     }
 }

src/main/java/org/linker/springboot/controller/UserController.java

@@ -8,6 +8,7 @@ import org.linker.springboot.core.exception.ServiceException;
 import org.linker.springboot.core.vo.CommonResult;
 import org.linker.springboot.dto.UserAddDTO;
 import org.linker.springboot.dto.UserUpdateDTO;
+import org.linker.springboot.pojo.User;
 import org.linker.springboot.service.UserService;
 import org.linker.springboot.vo.UserVO;
 import org.slf4j.Logger;
@@ -177,4 +178,14 @@ public class UserController {
         logger.info("[validate] userVO: {}", userVO.toString());
         return CommonResult.success(userVO);
     }
+
+    @GetMapping("/get_all_users")
+    public CommonResult<List<User>> getAllUsersFromDB() {
+        return CommonResult.success(userService.getAllUserFromDB());
+    }
+
+    @GetMapping("/get_user_by_id")
+    public CommonResult<User> getUserById(@Min(value = 1, message = "用户编号必须大于 0") Integer id) {
+        return CommonResult.success(userService.getUserById(id));
+    }
 }

src/main/java/org/linker/springboot/mapper/UserMapper.java

+package org.linker.springboot.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.linker.springboot.pojo.User;
+
+public interface UserMapper extends BaseMapper<User> {
+}

src/main/java/org/linker/springboot/pojo/User.java

+package org.linker.springboot.pojo;
+
+public class User {
+    private Long id;
+    private String username;
+    private Integer age;
+    private String email;
+
+    public User() {
+    }
+
+    public User(long id, String username, int age, String email) {
+        this.id = id;
+        this.username = username;
+        this.age = age;
+        this.email = email;
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getusername() {
+        return username;
+    }
+
+    public void setusername(String username) {
+        this.username = username;
+    }
+
+    public Integer getAge() {
+        return age;
+    }
+
+    public void setAge(Integer age) {
+        this.age = age;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    @Override
+    public String toString() {
+        return "User{" +
+                "id=" + id +
+                ", username='" + username + '\'' +
+                ", age=" + age +
+                ", email='" + email + '\'' +
+                '}';
+    }
+}
\ No newline at end of file

src/main/java/org/linker/springboot/service/UserService.java

 package org.linker.springboot.service;
 
+import org.linker.springboot.mapper.UserMapper;
+import org.linker.springboot.pojo.User;
 import org.linker.springboot.vo.UserVO;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
+import java.util.List;
+
 @Service
 public class UserService {
 
+    @Autowired
+    private UserMapper userMapper;
+
     public UserVO get(Integer id) {
         return new UserVO().setId(id).setUsername("test");
     }
 
+    public List<User> getAllUserFromDB() {
+        return userMapper.selectList(null);
+    }
+
+    public User getUserById(Integer id) {
+        return userMapper.selectById(id);
+    }
 }

src/main/resources/application.yml

 spring:
   application:
     name: springboot
+  # DataSource Config
+  datasource:
+    druid:
+      driver-class-name: com.mysql.cj.jdbc.Driver
+      url: jdbc:mysql://192.168.0.210:3306/springboot_study?useSSL=false&serverTimezone=Asia/Shanghai&allowPublicKeyRetrieval=true&nullCatalogMeansCurrent=true
+      username: root
+      password: lhr
+      initial-size: 1 # ?????
+      min-idle: 1 # ???????
+      max-active: 20 # ???????
+      max-wait: 600000 # ???????????????????
+      time-between-eviction-runs-millis: 60000 # ???????????????????????????????
+      min-evictable-idle-time-millis: 300000 # ??????????????????????
+      max-evictable-idle-time-millis: 900000 # ??????????????????????
+      validation-query: SELECT 1 FROM DUAL # ??????????
+      test-while-idle: true
+      test-on-borrow: false
+      test-on-return: false
+
+mybatis-plus:
+  configuration:
+    # MyBatis ??
+    map-underscore-to-camel-case: true
+  global-config:
+    # ????
+    db-config:
+      # ?????
+      id-type: auto
+
+logging:
+  level:
+    org.linker.springboot.mapper: debug