使用ashx解決ajax跨域訪問的問題

由於跨域訪問是被IE的安全訪問拒絕掉的

需要使用web代理
建立一個proxy.ashx檔案

在proxy.ashx裡建一個webservice

代碼如下：

[WebService(Namespace="http://temouri.org//")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
public class Proxy:IHttpHandler
{
     public void ProcessRequest(HttpContext context)
     {
           string url = context.Request.QueryString["url"];
            WebRequest request = HttpWebRequest.Create(url);
           WebResponse response = request.GetResponse();
           Stream stream = response.GetResponseStream();
            StreamReader reader = new StreamReader(stream);

           context.Response.ContentType = response.ContentType;
           context.Response.Write(reader.ReadToEnd());

           reader.Close();
            stream.Close();
           response.Close();
           
     }
}

調用: window.location = "proxy.ashx?url=http://www.baidu.com";