MyBatis - 两种查询树形数据（最多三级结构）

@Data
@JsonInclude(value = JsonInclude.Include.NON_EMPTY)
public class OrgTree implements Serializable {

    private String id;

    private String label;

    private List children;

}

        
        
        
            
            
            
                
                
            
        
    
    

        select
            m1.org_code as id,
            m1.org_name as label,
            m2.org_code as id2,
            m2.org_name as label2,
            m3.org_code as id3,
            m3.org_name as label3
        from org_table m1,org_table m2,org_table m3
        where
			m1.org_code=m2.parent_org_code
			and
		    m2.org_code=m3.parent_org_code

        
        
            and m1.org_code=#{firstCode}
        
        
            and m2.org_code=#{secondCode}
        
        
            and m3.org_code=#{thirdCode}
        


	  order by id,id2,id3
    
	

MyBatis - 两种查询树形数据的方法详解（嵌套结果集、递归查询）

参考连接