mybatis-plus初次引入

ruoyi-admin/pom.xml

@@ -53,6 +53,10 @@
             <artifactId>ruoyi-generator</artifactId>
         </dependency>
 
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+        </dependency>
     </dependencies>
 
     <build>

ruoyi-admin/src/main/java/com/ruoyi/RuoYiApplication.java

@@ -1,5 +1,6 @@
 package com.ruoyi;
 
+import org.mybatis.spring.annotation.MapperScan;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
@@ -10,6 +11,7 @@ import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
  * @author ruoyi
  */
 @SpringBootApplication(exclude = {DataSourceAutoConfiguration.class})
+@MapperScan("com.ruoyi.system.mapper")
 public class RuoYiApplication {
     public static void main (String[] args) {
         // System.setProperty("spring.devtools.restart.enabled", "false");

ruoyi-admin/src/main/java/com/ruoyi/web/controller/system/BookInfoController.java

@@ -0,0 +1,29 @@
+package com.ruoyi.web.controller.system;
+
+import com.ruoyi.common.core.domain.Result;
+import com.ruoyi.system.domain.BookInfo;
+import com.ruoyi.system.service.BookInfoService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * @author DongZl
+ * @description: 书籍请求控制
+ * @Date 2023-10-7 上午 09:37
+ */
+@RestController
+@RequestMapping("/book")
+public class BookInfoController {
+
+    @Autowired
+    private BookInfoService bookInfoService;
+
+    @PostMapping
+    public Result add(@RequestBody BookInfo bookInfo){
+        bookInfoService.save(bookInfo);
+        return Result.success();
+    }
+}

ruoyi-admin/src/main/resources/application.yml

@@ -82,6 +82,14 @@ mybatis:
   # 加载全局的配置文件
   configLocation: classpath:mybatis/mybatis-config.xml
 
+mybatis-plus:
+  # 搜索指定包别名
+  typeAliasesPackage: com.ruoyi.**.domain
+  # 配置mapper的扫描，找到所有的mapper.xml映射文件
+  mapperLocations: classpath*:mapper/**/*Mapper.xml
+  # 加载全局的配置文件
+  configLocation: classpath:mybatis/mybatis-config.xml
+
 # PageHelper分页插件
 pagehelper:
   helperDialect: mysql

ruoyi-admin/src/test/java/com/myplus/BookTestService.java

@@ -0,0 +1,39 @@
+package com.myplus;
+
+import com.ruoyi.RuoYiApplication;
+import com.ruoyi.system.domain.BookInfo;
+import com.ruoyi.system.mapper.BookInfoMapper;
+import com.ruoyi.system.service.BookInfoService;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+
+import java.math.BigDecimal;
+import java.util.Date;
+
+/**
+ * @author DongZl
+ * @description: 测试类
+ * @Date 2023-10-8 下午 04:39
+ */
+@SpringBootTest(classes = RuoYiApplication.class)
+public class BookTestService {
+
+    @Autowired
+    private BookInfoService bookInfoService;
+
+    @Autowired
+    private BookInfoMapper bookInfoMapper;
+
+    @Test
+    public void save(){
+        bookInfoMapper.insert(
+                BookInfo.builder()
+                        .name("水浒传")
+                        .price(new BigDecimal("65.36"))
+                        .create_by("zhangsan")
+                        .create_time(new Date())
+                        .build()
+        );
+    }
+}

ruoyi-common/pom.xml

@@ -41,6 +41,13 @@
             <artifactId>pagehelper-spring-boot-starter</artifactId>
         </dependency>
 
+        <!-- mybatis - plus 依赖 -->
+        <dependency>
+            <groupId>com.baomidou</groupId>
+            <artifactId>mybatis-plus-boot-starter</artifactId>
+            <version>3.5.3.1</version>
+        </dependency>
+
         <!-- 自定义验证注解 -->
         <dependency>
             <groupId>org.springframework.boot</groupId>

ruoyi-system/src/main/java/com/ruoyi/system/domain/BookInfo.java

@@ -0,0 +1,46 @@
+package com.ruoyi.system.domain;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.math.BigDecimal;
+import java.util.Date;
+
+/**
+ * @author DongZl
+ * @description: 书籍信息
+ * @Date 2023-10-7 上午 09:29
+ */
+@Data
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+@TableName("book_info")
+public class BookInfo {
+    /**
+     * 主键
+     */
+    @TableId(type = IdType.AUTO)
+    private Long id;
+    /**
+     * 名称
+     */
+    private String name;
+    /**
+     * 价格
+     */
+    private BigDecimal price;
+    /**
+     * 创建人
+     */
+    private String create_by;
+    /**
+     * 创建时间
+     */
+    private Date create_time;
+}

ruoyi-system/src/main/java/com/ruoyi/system/mapper/BookInfoMapper.java

@@ -0,0 +1,14 @@
+package com.ruoyi.system.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.ruoyi.system.domain.BookInfo;
+import org.apache.ibatis.annotations.Mapper;
+
+/**
+ * @author DongZl
+ * @description: 书籍mapper层
+ * @Date 2023-10-7 上午 09:31
+ */
+@Mapper
+public interface BookInfoMapper extends BaseMapper<BookInfo> {
+}

ruoyi-system/src/main/java/com/ruoyi/system/service/BookInfoService.java

@@ -0,0 +1,12 @@
+package com.ruoyi.system.service;
+
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.ruoyi.system.domain.BookInfo;
+
+/**
+ * @author DongZl
+ * @description: 书籍业务
+ * @Date 2023-10-7 上午 09:35
+ */
+public interface BookInfoService extends IService<BookInfo> {
+}

ruoyi-system/src/main/java/com/ruoyi/system/service/impl/BookInfoServiceImpl.java

@@ -0,0 +1,16 @@
+package com.ruoyi.system.service.impl;
+
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.ruoyi.system.domain.BookInfo;
+import com.ruoyi.system.mapper.BookInfoMapper;
+import com.ruoyi.system.service.BookInfoService;
+import org.springframework.stereotype.Service;
+
+/**
+ * @author DongZl
+ * @description:
+ * @Date 2023-10-7 下午 05:15
+ */
+@Service
+public class BookInfoServiceImpl extends ServiceImpl<BookInfoMapper, BookInfo> implements BookInfoService {
+}