springboot mybatis mapper.xml中sql in的入参是数组foreach写法总结

Mapper(本人没写dao层)接口类写法 

public List<Custom> seachCustoms(@Param("fzr") String[] fzr);
1     <select id="seachCustoms" resultMap="customs" parameterType="list">
2         select * from custom
3                     where fzr in
4                 <foreach collection="fzr" index="index" item="fzr" open="(" separator="," close=")" >
5                     #{fzr}
6                 </foreach>
7 
8     </select>

注意  parameterType="list" 一定不能写成list、java.util.List、java.util.ArrayList、java.lang.String

否则会报错:错误信息是sql格式问题:就是入参是问号的错误

posted @ 2019-09-06 10:39  Python5421  阅读(1979)  评论(0编辑  收藏  举报