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Home Backend Development PHP Tutorial ajax select 不同步问题

ajax select 不同步问题

Jun 23, 2016 pm 01:54 PM
ajax select



有两个SELECT  当改变第一个SELECT 里的选项时 向服务器请求数据 加载到SELECT2里  
这个功能是实现了  但是有个BUG 就是返回数据太慢  当选择完第一个SELECT后 再点SELECT2时
不能同步  通常要等个1-2秒 请问这个问题该怎么解决 新手 一枚 求大神帮帮忙


回复讨论(解决方案)

测试下后端拿数据所用的时间

每次都需要?用后端?不可以把所有select1->select2的???成json?象在前端?

如果必??求後端的,可以??,??第一?select change?,把select2?的option清掉,再?用ajax。

不?要等1-2秒?真是慢。

 

js封装的东西,放在服务端,js直接填充,请求一次服务端,客户端就完成填充,不用每次循环。

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