MyBatis使用<foreach>标签like查询报错解决问题

    List<UserDO> getByIds(@Param("ids") List<Long> ids);


    <select id="getByIds" resultMap="BaseResultMap">
      SELECT * FROM t_user
      WHERE id IN
      <foreach collection="ids" item="id" separator="," open="(" close=")">
        #{id}
      </foreach>
    </select>

    @Test
    public void testGetByIds() {
        List<Long> ids = Arrays.asList(1L, 2L, 3L);
        List<UserDO> userDOList = userMapper.getByIds(ids);
        System.out.println(userDOList);
    }

  List<UserDO> getLikeByUsername(@Param("userNameList") List<String> userNameList);


  <select id="getLikeByUsername" resultMap="BaseResultMap">
    SELECT * FROM t_user
    WHERE
    <foreach collection="userNameList" item="userName" separator="OR" open="(" close=")">
      user_name LIKE concat('%', #{userName}, '%')
    </foreach>
  </select>

    @Test
    public void testGetLikeByUsername() {
        List<String> userNameList = Arrays.asList("赵", "后", "赵云");
        List<UserDO> userDOList = userMapper.getLikeByUsername(userNameList);

        System.out.println(userDOList);
    }

user_name LIKE concat('%',concat(#{userName},'%')) -- 个人比较推荐使用
user_name LIKE concat(‘%', #{userNameList[${idx}]}, ‘%')

<select id="getLikeByUsername" resultMap="BaseResultMap">
  SELECT * FROM t_user
  WHERE
  <foreach collection="userNameList" item="userName" separator="OR" open="(" close=")" index="idx">
    user_name LIKE concat('%',concat(#{userName},'%'))
    --       user_name LIKE concat('%', #{userNameList[${idx}]}, '%')
  </foreach>
</select>

    @Select({"<script>",
            "SELECT * FROM t_user\n" +
                    "    WHERE\n" +
                    "    <foreach collection=\"userNameList\" item=\"userName\" separator=\"OR\" open=\"(\" close=\")\">\n" +
                    "      user_name LIKE concat('%',concat(#{userName},'%'))\n" +
                    "    </foreach>",
            "</script>"})
    List<UserDO> getLikeByUsername2(@Param("userNameList") List<String> userNameList);