JS跨域代码片段

　　public string GetInfo(HttpContext context)

　　{

　　string post = "a=XX&b=XX";

　　return CreateHttpRequest("https://www.XXXX.com", post, "POST");

　　}

　　#region 构造请求

　　/// <summary>

　　/// 构造请求

　　/// </summary>

　　/// <param name="requestUrl">请求地址</param>

　　/// <param name="requestParam">请求参数</param>

　　/// <param name="requestMethod">请求方式</param>

　　/// <returns></returns>

　　public string CreateHttpRequest(string requestUrl, string requestParam, string requestMethod)

　　{

　　try

　　{

　　System.Net.HttpWebRequest request = System.Net.HttpWebRequest.Create(requestUrl) as System.Net.HttpWebRequest;

　　request.Method = requestMethod;

　　string post = requestParam;

　　byte[] bytes = System.Text.Encoding.UTF8.GetBytes(post);

　　request.ContentType = "application/x-www-form-urlencoded";

　　request.ContentLength = bytes.Length;

　　System.IO.Stream stream = request.GetRequestStream();

　　stream.Write(bytes, 0, bytes.Length);

　　System.Net.HttpWebResponse response = request.GetResponse() as System.Net.HttpWebResponse;

　　System.IO.StreamReader sr = new System.IO.StreamReader(response.GetResponseStream(), System.Text.Encoding.UTF8);

　　return sr.ReadToEnd();

　　}

　　catch (Exception)

　　{

　　return "";

　　}

　　}

　　#endregion