src/main/java/mapper/UserMapper.java

微信扫码关注公众号，代码整理好后第一时间通知你。

package mapper;

import java.util.List;
import model.User;
import model.UserExample;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;
import org.springframework.stereotype.Repository;

@Repository
public interface UserMapper {
    long countByExample(UserExample example);

    int deleteByExample(UserExample example);

    int deleteByPrimaryKey(Integer id);

    int insert(User record);

    int insertSelective(User record);

    List<User> selectByExample(UserExample example);

    @Select("select * from User")
    List<User> selectAll();

    User selectByPrimaryKey(Integer id);

    //使用注解方式执行查询代码
    @Select("select * from User where name = #{name}")
    User selectByName(String name);

    int updateByExampleSelective(@Param("record") User record, @Param("example") UserExample example);

    int updateByExample(@Param("record") User record, @Param("example") UserExample example);

    int updateByPrimaryKeySelective(User record);

    int updateByPrimaryKey(User record);
}