How to pass an Integer Array to IN clause in MyBatis

Question

There is a query in my Mybatis containing an IN clause which is basically a set of Id\'s ( Integers)

I am now stuck on how can I pass an Integer array to this IN cla

Answer 1

YES, you can do that using annotations.

If you're using postgresql, you can do like in this post.

If you're using MySQL try this changes in your code sample:

Mybatis Method using Annotations

@Select(SEL_QUERY)
    @Results(value = {@Result(property="id",column="ID")})
    List getIds(@Param("usrIds") String usrIds);

Query (using MySQL)

select distinct ID from table a where FIND_IN_SET( a.id, #{usrIds}) <> 0

Method call

Integer[] arr = new Integer[2];
arr[0] = 1;
arr[1] = 2;

String usrIds= "";
for (int id : ids) {
    usrIds += id + ",";
}

mapper.getIds(usrIds)