mybatis如何调用返回游标形式的结果集存储过程，java层如何把cursor转换为list呢？有代码吗？麻烦贴一下

Posted 2023-05-10

我按照网上的例子怎么弄都不对，搞了一天了。。晕死。麻烦大牛们贴个java层和xml里面的代码，谢谢了。。
http://bbs.csdn.net/topics/390866155这个地址里，有我的代码，还有报错信息。麻烦查看。。
回下面那个网友：
我写的跟你差不多，但java层：
Map<String, Object> params = new HashMap<String, Object>();
List<TActWintxnGroup> lists = new ArrayList<TActWintxnGroup>();
params.put("v_cursor", lists);//输出参数传入
reportWintxnGroupService.findListByParamExport(params);
List<TActWintxnGroup> depts = (ArrayList<TActWintxnGroup>)params.get("v_cursor");
最后报：java.lang.ClassCastException: oracle.jdbc.driver.OracleResultSetImpl cannot be cast to java.util.ArrayList

参考技术A call rebate_anlyse(#v_cursor, mode=OUT, jdbcType=CURSOR, resultMap=<具体返回的l类型>)

例如
定义resultMap
<resultMap type="test.Blog" id="blogResultMap">
.....................

</resultMap>

call rebate_anlyse(#v_cursor, mode=OUT, jdbcType=CURSOR, resultMap=blogResultMap)追问

我写的跟你差不多，java层调用出问题了，你看我上面问题的补充有4,5行代码，最后一行报错。

java使用mybatis 调用存储过程返回一个游标结果集

瀚高数据库
目录
环境
文档用途
详细信息

环境
系统平台：IBM:Linux on System z Red Hat Enterprise Linux 7
版本：6.0,4.5
文档用途
mybatis调用存储过程返回游标接收结果集。

详细信息
1.service实现类

@Override
@Transactional
public List<HighgoFunOneRefcursorEntity> getOneRefcursor(Integer id) 

    HashMap<String, Object> map = new HashMap<String, Object>();
    map.put("id", id);
    highgoFunOneRefcursorDao.getOneRefcursor(map);
    List<HighgoFunOneRefcursorEntity> list = (List<HighgoFunOneRefcursorEntity>)map.get("result");

    return list;

2.dao层

@Mapper
public interface HighgoProOneRefcursorDao extends BaseMapper<HighgoProOneRefcursorEntity> 
    ArrayList<Map<String, Object>> getProOneRefcursor(HashMap map);

3.mapper

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<mapper namespace="com.database.mybatisplus.modules.demo.dao.HighgoProOneRefcursorDao">

   <!-- 可根据自己的需求，是否要使用 -->
    <resultMap type="com.database.mybatisplus.modules.demo.entity.HighgoProOneRefcursorEntity" id="highgoProOneRefcursorMap">
        <result property="hanzi" column="hanzi"/>
        <result property="quanpin" column="quanpin"/>
        <result property="szm" column="szm"/>
        <result property="duyin" column="duyin"/>
        <result property="numbersd" column="numbersd"/>
        <result property="sd" column="sd"/>
        <result property="repsd" column="repsd"/>
        <result property="hzascii" column="hzascii"/>
    </resultMap>

    <!-- 调用存储过程返回一个游标 -->
    <select id="getProOneRefcursor" parameterType="map" statementType="CALLABLE" resultType="java.util.Map">
        call sp_one_refcursor(#id,mode=IN,null,#result,mode=OUT,jdbcType=OTHER,javaType=ResultSet,resultMap=highgoFunOneRefcursorMap)
    </select>

</mapper>

4.数据库过程

CREATE OR REPLACE PROCEDURE test.sp_one_refcursor(integer, INOUT refcursor)
 LANGUAGE plpgsql
AS $procedure$
begin
	if $1 = 1 then 
		open $2 for select * from hzpyszm limit 100;
	elseif $1 = 2 then
		open $2 for select hanzi,quanpin,szm,duyin from hzpyszm limit 100;
	else 
		open $2 for select hanzi,quanpin from hzpyszm limit 100;
	end if;
	exception when others then
		raise exception 'sql exception--%',sqlerrm;
end;
$procedure$
;

5.jdbc参数

url: jdbc:highgo://192.168.21.138:5870/test?escapeSyntaxCallMode=callIfNoReturn

6.数据库表

CREATE TABLE hzpyszm (
	hanzi varchar(4) NULL,
	quanpin varchar(10) NULL,
	szm varchar(5) NULL,
	duyin varchar(10) NULL,
	numbersd varchar(1) NULL,
	sd varchar(5) NULL,
	repsd varchar(5) NULL,
	hzascii int8 NULL
);
CREATE INDEX hzpyszm_hanzi_idx ON test.hzpyszm USING btree (hanzi varchar_pattern_ops);

INSERT INTO hzpyszm (hanzi, quanpin, szm, duyin, numbersd, sd, repsd, hzascii) VALUES('唔', 'ngn', 'n', 'ńgń', '2', NULL, NULL, 21780);
INSERT INTO hzpyszm (hanzi, quanpin, szm, duyin, numbersd, sd, repsd, hzascii) VALUES('匌', 'ge', 'g', 'gé', '2', 'é', 'e', 21260);
INSERT INTO hzpyszm (hanzi, quanpin, szm, duyin, numbersd, sd, repsd, hzascii) VALUES('匍', 'pu', 'p', 'pú', '2', 'ú', 'u', 21261);
INSERT INTO hzpyszm (hanzi, quanpin, szm, duyin, numbersd, sd, repsd, hzascii) VALUES('匎', 'e', 'e', 'è', '4', 'è', 'e', 21262);
INSERT INTO hzpyszm (hanzi, quanpin, szm, duyin, numbersd, sd, repsd, hzascii) VALUES('匏', 'pao', 'p', 'páo', '2', 'á', 'a', 21263);
INSERT INTO hzpyszm (hanzi, quanpin, szm, duyin, numbersd, sd, repsd, hzascii) VALUES('匐', 'fu', 'f', 'fú', '2', 'ú', 'u', 21264);
INSERT INTO hzpyszm (hanzi, quanpin, szm, duyin, numbersd, sd, repsd, hzascii) VALUES('匑', 'gong', 'g', 'gōng', '1', 'ō', 'o', 21265);
INSERT INTO hzpyszm (hanzi, quanpin, szm, duyin, numbersd, sd, repsd, hzascii) VALUES('匒', 'da', 'd', 'dá', '2', 'á', 'a', 21266);
INSERT INTO hzpyszm (hanzi, quanpin, szm, duyin, numbersd, sd, repsd, hzascii) VALUES('匓', 'jiu', 'j', 'jiù', '4', 'ù', 'u', 21267);
INSERT INTO hzpyszm (hanzi, quanpin, szm, duyin, numbersd, sd, repsd, hzascii) VALUES('匔', 'gong', 'g', 'gōng', '1', 'ō', 'o', 21268);