mybatis多条件查询，动态sql，模糊查询

mapper.xml中：

        SELECT * FROM Diary
        
            
            
                and fileName LIKE CONCAT('%',#{arg0 },'%' )
            
            
                and username = #{arg1}
            
        
    

DAO层：

//多条件查询，动态sql
    public List selectShareByName(String fileName,String username){
        System.out.println(fileName+username);
        List list = new ArrayList<>();
        DiaryMapper diaryMapper = sqlSession.getMapper(DiaryMapper.class);
        list = diaryMapper.selectShareByName(fileName,username);
        return list;
    }

配置springboot+mybaits输出sql语句

在application.properties中加入：

logging.level.com.example.demo.map=debug

可以看到：