标签：mapper 个人 log div mat text encoding com cts
entity 对应表中字段,如不对应,在xml中起别名/**
* MH管理实体
*
* @author 金聖聰
* @version 1.0
* @className Excel4MH
* @date 2020/7/21 12:19
*/
@Data
@NoArgsConstructor
@AllArgsConstructor
public class Excel4MH implements Serializable {
private static final long serialVersionUID = 8925979180415560488L;
/** 管理机构名 */
private String orgName;
/** 执行值1 */
private Double zxz01;
/** 执行值2 */
private Double zxz02;
/** 业务时间 */
private String ywsj;
}
map Interface/**
* MH管理实体
*
* @author 金聖聰
* @version 1.0
* @className Excel4MHMapper
* @date 2020/7/21 12:20
*/
public interface Excel4MHMapper {
void save(List<Excel4MH> list);
}
map xml<?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.bsoft.mapper.Excel4MHMapper">
<insert id="save" parameterType="list">
merge into EXCEL_EHR_ZFBC_006 t1
using (
<foreach collection="list" item="item" index="index" separator="union all">
-- 给实体类中的字段起别名,与数据库中一致
select #{item.orgName} ORGNAME,
#{item.zxz01} ZXZ_01,
#{item.zxz02} ZXZ_02,
-- 字符串转日期函数
to_date(#{item.ywsj}, ‘yyyy-mm-dd‘) YWSJ
-- Oracle中的dual表是一个单行单列的虚拟表 不懂想懂的 出门谷歌或百度,不想懂的这里不用改
from dual
</foreach>) t2
on (
--这里是判断条件 根据name和ywsj判读是否是同一条记录
t1.ORGNAME = t2.ORGNAME and t1.YWSJ = t2.YWSJ
)
-- 如果相等
when matched then
update
-- 这里注意: 在on中的判断条件中出现的字段这里不能出现
set t1.ZXZ_01 = t2.ZXZ_01,
t1.ZXZ_02 = t2.ZXZ_02
--如果不相等
when not matched then
insert ( ORGNAME
, ZXZ_01
, ZXZ_02
, YWSJ)
values ( t2.ORGNAME
, t2.ZXZ_01
, t2.ZXZ_02
, t2.YWSJ)
</insert>
</mapper>
entity@Data
@NoArgsConstructor
@AllArgsConstructor
public class CheckValue4EvaluationIndex implements Serializable {
private static final long serialVersionUID = 222790624982912873L;
/** 上传条数 */
private Integer scts;
/** 抽样机构代码 */
private String cyjgdm;
/** 抽样机构综合评价指数 */
private Double cyjgzhpjzs;
/** 年份 格式 yyyy */
private String nf;
/** 修改标志 */
private String xgbz;
}
map interface/**
* 评价指数mapper
*
* @author 金聖聰
* @version 1.0
* @className CheckValue4EvaluationIndexMapper
* @date 2020/7/13 10:19
*/
public interface CheckValue4EvaluationIndexMapper {
/**
* 根据传入的年份查询
*
* @param time 需要查询的年份 yyyy
* @return com.bsoft.pojo.vo.CheckValue4EvaluationIndex
* @author 金聖聰
* @email jinshengcong@163.com
* @version v1.0
* @date 2020/7/13 10:21
*/
CheckValue4EvaluationIndex queryByTime(@Param("time") String time);
}
map xml<?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.bsoft.mapper.CheckValue4EvaluationIndexMapper">
<select id="queryByTime" resultType="CheckValue4EvaluationIndex">
select (select count(1) from EXCEL_EVALUATIONINDEX where TIME = #{time}) "scts",
jgdm "cyjgdm",
zhpjzs "cyjgzhpjzs",
#{time} "nf",
‘1‘ "xgbz"
from (
select *
from EXCEL_EVALUATIONINDEX
where TIME = #{time}
order by dbms_random.value
)
where rownum = 1
group by jgdm, zhpjzs, JGM
</select>
</mapper>
Oracle整合Mybatis实现list数据插入时,存在就更新,不存在就插入以及随机抽取一条记录
标签：mapper 个人 log div mat text encoding com cts
原文地址：https://www.cnblogs.com/jsccc520/p/13371761.html
