我在asp.net上有一个Web应用程序,它使用Jquery-ajax调用 GET 来自restful服务的一些数据。这个WCF服务工作正常,我可以在我的浏览器中使用它的' UriTemplate '调用它,接下来我的数据将被显示。
但是,当我使用ajax调用来获取内容时,将记录 Access-Control-Allow-Origin 错误。考虑到我已经在我的web.config文件中设置了Access-Control-Allow-Origin和Header参数,但没有得到结果。
错误内容:
XMLHttpRequest cannot load http://localhost:8000/MonitorDataProviderService/MonitorData. Origin http://localhost:2265 is not allowed by Access-Control-Allow-Origin.
我的 ajax调用位于ascx脚本块中:
function FillDataA()
{
console.log("Address is : " + address);
$.ajax({
type: "GET",
url: address,//Address is valid
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (r) {
alert("WIN");
},
error: function (msg) { console.log("ERROR"); }
});
setTimeout(function () { FillDataA(); }, 2000);//The method is calling continuously
}
配置文件标签:
<system.webServer>
<httpProtocol>
<customHeaders>
<add name="Access-Control-Allow-Origin" value="http://localhost:2265" />
<add name="Access-Control-Allow-Headers" value="Content-Type, Accept" />
</customHeaders>
</httpProtocol>
</system.webServer>
另外,在 Global.asax 上添加它没有帮助:
protected void Application_BeginRequest(object sender, EventArgs e)
{
HttpContext.Current.Response.AddHeader("Access-Control-Allow-Origin",
"*");
// I've Tested fixed url in place of '*' too
if (HttpContext.Current.Request.HttpMethod == "OPTIONS")
{
HttpContext.Current.Response.AddHeader("Access-Control-Allow-Methods",
"GET, POST");
HttpContext.Current.Response.AddHeader("Access-Control-Allow-Headers",
"Content-Type, Accept");
HttpContext.Current.Response.AddHeader("Access-Control-Max-Age",
"1728000");
HttpContext.Current.Response.End();
}
}
浏览器已使用: - Chrome 28 - Firefox 22.0
任何有用的想法将不胜感激
最好的问候