Mybatis 呼叫儲存過程 並返回單/多結果集的情況
阿新 • • 發佈：2018-12-18
返回單結果集的情況：
- 引用：
https://blog.csdn.net/a9529lty/article/details/24401423
儲存過程示例： create or replace procedure Fsp_Plan_CheckPrj(v_grantno varchar2, v_deptcode number, v_cursor out sys_refcursor) is ……………… ---返回統計結果 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層程式碼
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>>());//傳入一個jdbc遊標，用於接收返回引數 this. batisDao. getSearchList("call_Fsp_Plan_CheckPrj", params);
- mybatis xml配置
<resultMap type ="java.util.HashMap" id= "cursorMap"><！--配置返回遊標中別名對應的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 > <!--註明statementType="CALLABLE"表示呼叫儲存過程--> <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})} <!--傳入傳出引數要註明mode=IN/OUT 並要註明jdbcType（在網上可以查詢mybatis支援哪些jdbcType型別），返回引數要註明對應的resultMap--> </select >
- 最後，得到一個可遍歷的list結果集 ,如service層呼叫
Map<String,Object> map=new HashMap<String, Object>();
map.put("id", "22333");
//取得返回的結果集
List<List<?>> results = orderDao.getOrders(map);
//第一條結果集 總數量
System.out.println(((List<Integer>)results.get(0)).get(0));
//第二條訂單列表
System.out.println((List<OrderForm>)results.get(1));
返回多結果集的情況：
- 引用：
- 儲存過程的定義
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檔案
<!--Map作為儲存過程輸入輸出引數 -->
<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介面
public interface IHdxOrderInfoDao {
public List<List<?>> getNamesAndItems(Map<String,Object> map);
}
附帶上MyBatis 通過包含的jdbcType型別
引用：
