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Mybatis查询实例,sql中的in在Mybatis中怎么写--以list为查询条件

时间:2021-07-01 10:21:17 帮助过:2人阅读

<String> list = new ArrayList<String>(); list.add("x"); list.add("y"); list.add("z"); String s = "A" Date d = new Date(); HashMap<String,Object> param = new HashMap<String,Object>(); param.put("list",list); param.put("s",s); param.put("d",d); XXXDao.queryXXX(param); 在Mybatis的Mapper中是这么写: <select id = "queryXXX",resultType = "XXX", paramterType = "java.lang.HashMap"> select * from tab where zi_duan1 = #{s} and zi_duan2 = #{d} and zi_duan3 in <foreach item="item" index="index" collection="list" open="(" separator="," close=")"> #{item} </foreach> </select>
在service中把参数放到HashMap中
List<String> list = new ArrayList<String>();
list.add("x");
list.add("y");
list.add("z");

String s = "A"

Date d = new Date();

HashMap<String,Object> param = new HashMap<String,Object>();

param.put("list",list);
param.put("s",s);
param.put("d",d);

XXXDao.queryXXX(param);

在Mybatis的Mapper中是这么写:
<select id = "queryXXX",resultType = "XXX", paramterType = "java.lang.HashMap">
select * from tab where zi_duan1 = #{s} and zi_duan2 = #{d}
and zi_duan3 in 
<foreach item="item" index="index" collection="list" open="("
            separator="," close=")">
            #{item}  
         </foreach>
</select>

Mybatis查询实例,sql中的in在Mybatis中怎么写--以list为查询条件

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