如果你看到这篇文章，按下面方式解决把，请记住，返回的echostr一定要是text/plain类型的第一种方式@RequestMapping中添加produces= ["text/plain;charset=UTF-8"]参数第二中方式使用response.contentType...

把#改为mybaties可识别的变量${}就可以了如下：原注解@Select(SELECT * FROM users WHERE city = #{cityId} ORDER BY #{byName}) 修改后@Select(SELECT * FROM users WHERE city = #{ci...