springboot集成通用mapper

1. 新建SpringBoot项目
2. pom配置如下

     <dependencies>
           <dependency>
               <groupId>org.springframework.boot</groupId>
               <artifactId>spring-boot-starter-web</artifactId>
           </dependency>
           <dependency>
               <groupId>org.mybatis.spring.boot</groupId>
               <artifactId>mybatis-spring-boot-starter</artifactId>
               <version>2.1.2</version>
           </dependency>
           <dependency>
               <groupId>tk.mybatis</groupId>
               <artifactId>mapper-spring-boot-starter</artifactId>
               <version>2.0.2</version>
           </dependency>
           <dependency>
               <groupId>mysql</groupId>
               <artifactId>mysql-connector-java</artifactId>
               <scope>runtime</scope>
           </dependency>
           <dependency>
               <groupId>org.springframework.boot</groupId>
               <artifactId>spring-boot-starter-test</artifactId>
               <scope>test</scope>
           </dependency>
   
           <dependency>
               <groupId>org.projectlombok</groupId>
               <artifactId>lombok</artifactId>
           </dependency>
   
       </dependencies>
   
   

3. 创建通用的接口继承Mapper和MySqlMapper（注意该文件不能和其他Dao放一起 springboot启动会配置扫描dao下的文件，扫描到该文件会报错）

   public interface IBaseDao<T> extends Mapper<T>,MySqlMapper<T> {
   }
   

4. aplication.yml配置

   #端口配置
   server:
     port: 8088
   #jdbc配置
   spring:
     datasource:
       driver-class-name: com.mysql.jdbc.Driver
       url: jdbc:mysql://localhost:3306/school?serverTimezone=UTC
       username: root
       password: 123456
   #mybatis配置
   mybatis:
     #实体类所在包名`
     type-aliases-package: com.lvqiang.mapper.entity
   #通用mapper配置
   
   #通用mapper配置
   mapper:
     #公用接口类路径
     mappers: com.lvqiang.mapper.base.IBaseDao
     identity: MYSQL
   
   

5. dao继承通用Dao

   public interface StudentDao extends IBaseDao<Student> {
   
   }
   

6. 主程序添加MapperScan即可

@SpringBootApplication
@MapperScan("com.lvqiang.mapper.dao")
public class MapperApplication {

    public static void main(String[] args) {
        SpringApplication.run(MapperApplication.class, args);
    }

}