第一步:配置Php 后台允许跨域

<?php
header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept');
//主要为跨域CORS配置的两大基本信息,Origin和headers

第二步:配置Apache web服务器跨域(httpd.conf中)

原代码

<Directory />
    AllowOverride none
    Require all denied
</Directory>

修改为：

<Directory />
    Options FollowSymLinks
    AllowOverride none
    Order deny,allow
    Allow from all
</Directory>