解决Ajax跨域请求问题

使用webservice后台跨域访问获取数据

//处理内容  
            string html = "";
            string url = "";
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
            request.Accept = "*/*"; //接受任意文件
            request.AllowAutoRedirect = true;//是否允许302
            //request.CookieContainer = new CookieContainer();//cookie容器，
            request.Referer = url; //当前页面的引用


            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            Stream stream = response.GetResponseStream();
            StreamReader reader = new StreamReader(stream, Encoding.UTF8);
            html = reader.ReadToEnd();
            stream.Close();

            Context.Response.Charset = "UTF-8";
            Context.Response.ContentEncoding = System.Text.Encoding.GetEncoding("UTF-8");
            Context.Response.Write(html);
            Context.Response.End();

前台ajax请求

<script>
        $(function () {

            $("#getData").click(function () {
                $.post("http://localhost:2279/WebService1.asmx/GetData", {}, function (data) {
                }, "json");

            });

        })
    </script>