在web.config中添加如下代码
< system.webServer> < httpProtocol> < customHeaders> < add name="Access-Control-Allow-Methods" value="OPTIONS,POST,GET"/> < add name="Access-Control-Allow-Headers" value="x-requested-with"/> < add name="Access-Control-Allow-Origin" value="*" /> < /customHeaders> < /httpProtocol> < /system.webServer>