ajax post请求如何检查后台是否接受到数据

Answer 1

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Answer 2

在回调方法里检查返回的状态码，如果返回的是304说明后台已接收数据并且在处理请求中，当检查到返回200时说明已处理完成并发送到客户端，另外可以用浏览器的F12快捷键打开调试程序，监控网络请求

Answer 3

判断readyState的属性值是否为4，并且status状态码是否为200。

Answer 4

请求的url地址里面打印啊

Answer 5

后台查看有没有这条post的数据不就可以了吗？