mybatis 过滤空字符串无效问题

<if test="name != null and name!=''">
  and NAME like concat('%',#{name,jdbcType=VARCHAR},'%')
</if>

set截取前后空格，不然过滤不到 this.name = name ==null?null:name.trim();

public String getName() {
    return name;
}

public void setName(String name) {
    this.name = name ==null?null:name.trim();
}