C# Post 一般处理程序(ashx)并得到返回值

发布日期：2018-02-09    浏览次数：1500

var postUrl = "**/LoginInfo.ashx";

var postString = "method=CheckPW&id=4454556289&pwd=&checkword=8888&sign=";

HttpWebRequest httpRequset = null;

HttpWebResponse httpResponse = null;

try

{

//POST登录信息获取返回结果，结果为0是为登录成功

httpRequset = (HttpWebRequest)HttpWebRequest.Create(postUrl);//创建http 请求

httpRequset.Method = "POST";//POST 提交

httpRequset.ContentType = "application/x-www-form-urlencoded";//以上信息在监听请求的时候都有的直接复制过来

httpRequset.Headers.Add("X-Requested-With", "XMLHttpRequest");

httpRequset.Accept = "*/*";

httpRequset.Referer = "***";

httpRequset.Headers.Add("Accept-Language", "zh-Hans-CN,zh-Hans;q=0.7,ja;q=0.3");

httpRequset.Headers.Add("Accept-Encoding", "gzip, deflate");

httpRequset.UserAgent = "Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko";

httpRequset.KeepAlive = true;

httpRequset.Host = "xxx.com";

//httpRequset.Headers.Add("Access-Control-Allow-Origin", "*");//可跨域

httpRequset.Headers.Add("Pragma", "no-cache");

httpRequset.Headers.Add("DNT", "1");

httpRequset.ServicePoint.Expect100Continue = false;

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

httpRequset.ContentLength = bytes.Length;

Stream stream = httpRequset.GetRequestStream();

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

stream.Close();//以上是POST数据的写入

httpResponse = (HttpWebResponse)httpRequset.GetResponse();//获得 服务端响应

var s = string.Empty;

using (Stream responsestream = httpResponse.GetResponseStream())

{

using (StreamReader sr = new StreamReader(responsestream, System.Text.Encoding.UTF8))

{

content = sr.ReadToEnd(); //返回信息

}

//WebClient 写法

WebClient webClient = new WebClient();

NameValueCollection formData = new NameValueCollection();

formData["username"] = "testuser";

formData["password"] = "mypassword";

byte[] responseBytes = webClient.UploadValues(postUrl , "POST", formData);

string responsefromserver = Encoding.UTF8.GetString(responseBytes);

Console.WriteLine(responsefromserver);

webClient.Dispose();

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