springboot、mybatis根據Ids數組來刪除

今天學弟發qq給我說，參數爲數組的刪除不會。我整理一下，然後順便寫個博客隨便粘貼。
service：

 public boolean deleteEmpById(String ids) {
        String[] split = ids.split(",");
        return empMapper.deleteEmpById(split) == split.length;
    }

mapper接口：

    /**
     * 刪除employee
     *
     * @param ids
     * @return
     */
    int deleteEmpById(@Param("ids") String[] ids);

mapper.xml

    <delete id="deleteEmpById">
        DELETE FROM employee WHERE id IN
        <foreach collection="ids" separator="," open="(" close=")" item="id">
            #{id}
        </foreach>
    </delete>

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