Mybatis 调用存储过程 并返回单/多结果集的情况

 返回单结果集的情况：

• 引用：

https://blog.youkuaiyun.com/a9529lty/article/details/24401423

https://blog.youkuaiyun.com/papalian/article/details/42973463

https://blog.youkuaiyun.com/qiaoshuai0920/article/details/16340361

https://blog.youkuaiyun.com/magicfoxhu/article/details/39592705

 

存储过程示例： 
create or replace procedure Fsp_Plan_CheckPrj(v_grantno  varchar2, v_deptcode number,  v_cursor   out sys_refcursor) is 
……………… 
    ---返回统计结果 
    open v_Cursor for 
      select s.plan_code, 
             s.plan_dept, 
             s.plan_amount, 
             s.exec_amount, 
             p.cname       as plan_name, 
             d.cname       as dept_name 
        from Snap_plan_checkprj s 
        left join v_plan p 
          on s.plan_code = p.plan_code 
        left join org_office d 
          on s.plan_dept = d.off_org_code 
       group by s.plan_code, 
                s.plan_dept, 
                s.plan_amount, 
                s.exec_amount, 
                p.cname, 
                d.cname; 
  end; 
end Fsp_Plan_CheckPrj;  

 

•  java层代码

Map<String, Object> params = new HashMap<String, Object>();
GrantSetting gs = this. grantSettingDao.get(grantCode);
params.put( "grantNo", StringUtils. substring(gs.getGrantNo(), 0, 2));
params.put( "offOrgCode", SecurityUtils.getPersonOffOrgCode());
 
params.put("v_cursor", new ArrayList<Map<String, Object>>());//传入一个jdbc游标，用于接收返回参数
this. batisDao. getSearchList("call_Fsp_Plan_CheckPrj", params);

 

•   mybatis xml配置

<resultMap type ="java.util.HashMap" id= "cursorMap"><！--配置返回游标中别名对应的resultMap -->
     <result column ="plan_code" property="plan_code" />
     <result column ="plan_dept" property="plan_dept"  />
     <result column ="plan_amount" property="plan_amount" />
     <result column ="exec_amount" property="exec_amount"  />
     <result column ="plan_name" property="plan_name" />
     <result column ="dept_name" property="dept_name" />
</resultMap >
<!--注明statementType="CALLABLE"表示调用存储过程-->
<select id ="call_Fsp_Plan_CheckPrj" parameterType= "map" statementType="CALLABLE"  resultMap="cursorMap">
                                                         
     {call Fsp_Plan_CheckPrj(#{grantNo, jdbcType=VARCHAR, mode=IN},
                                   #{offOrgCode, jdbcType=INTEGER, mode=IN},
     #{v_cursor, mode=OUT, jdbcType=CURSOR, resultMap=cursorMap})}

<!--传入传出参数要注明mode=IN/OUT 并要注明jdbcType（在网上可以查询mybatis支持哪些jdbcType类型），返回参数要注明对应的resultMap-->
</select >

 

• 最后，得到一个可遍历的list结果集 ,如service层调用

   Map<String,Object> map=new HashMap<String, Object>();
        map.put("id", "22333");
   //取得返回的结果集   
   List<List<?>> results = orderDao.getOrders(map);
   //第一条结果集 总数量
   System.out.println(((List<Integer>)results.get(0)).get(0));
   //第二条订单列表
   System.out.println((List<OrderForm>)results.get(1));

返回多结果集的情况：

•  引用：

https://blog.youkuaiyun.com/ge_zhiqiang/article/details/38065629

• 存储过程的定义

CREATE  PROCEDURE queryTotalNum(OUT totalNum INT , IN tableName varchar(40), IN conditions varchar(300))  
 
begin      
 
    declare stmt varchar(2000);     
 
    declare num int;  
 
    if LENGTH(conditions)>1 then    
 
    begin  
 
        set @sqlstr=concat('SELECT COUNT(*) INTO @num from ',tableName,' where ',conditions);  
 
    end;  
 
    else  
 
    begin  
 
         set @sqlstr=concat('SELECT COUNT(*) INTO @num from ',tableName);  
 
 
    end;  
 
    end if;    
 
    prepare stmt from @sqlstr;      
 
    execute stmt;    
 
    deallocate prepare stmt;  
 
    set totalNum = @num;  
 
	select * from hdx_order_info LIMIT 0, 10 ;
  	select * from hdx_proxy_distributor LIMIT 0, 10 ;
 
    end; 

• 配置mybatis文件

<!--Map作为存储过程输入输出参数	-->
  <select id="getNamesAndItems" statementType="CALLABLE" parameterType="Map"  resultMap="HdxOrderInfoMap,TestMap">  
    {call queryTotalNum(#{totalNum,jdbcType=INTEGER,mode=OUT},#{tableName,jdbcType=INTEGER,mode=IN},#{conditions,jdbcType=INTEGER,mode=IN})}  
  </select> 

• Mapper Dao接口
   

public interface IHdxOrderInfoDao {
	
	public List<List<?>> getNamesAndItems(Map<String,Object> map);
	
	
}

附带上MyBatis 通过包含的jdbcType类型

引用：

https://www.cnblogs.com/yucongblog/p/7388648.html