通用Mapper的使用

1.导入依赖

      
          tk.mybatis
            mapper
            4.1.5
        

2.写通用接口

CommonMapper.java

import tk.mybatis.mapper.common.Mapper;
import tk.mybatis.mapper.common.MySqlMapper;

public interface CommonMapper extends Mapper,MySqlMapper {
}

3.mapper继承通用接口

比如UserMapper.java

public interface UserMapper extends CommonMapper {
 
}

4. 注意MapperSacn的import的更换

import tk.mybatis.spring.annotation.MapperScan;

import tk.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
//扫描mapper包
@MapperScan("com.msj.elearning.mapper")
public class ElearningApplication {

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