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C#中用HttpWebRequest/HttpWebResponse来发送/接收数据

2011-12-14 15:16 549 查看

//获取方法httPost请求URL发送过来的数据

public ActionResult ToUrl()

{

string result = "";

string jsonStr = "", line;

try

{

Stream streamResponse = Request.InputStream;

StreamReader streamRead = new StreamReader(streamResponse, Encoding.Default);

while ((line = streamRead.ReadLine()) != null)

{

jsonStr += line;

}

streamResponse.Close();

streamRead.Close();

result = jsonStr;

}

catch (Exception ex)

{

result = "msg-数据发布（In）异常：" + ex.Message;

}

return Content(jsonStr);

}

/*向网页发送数据并接收返回信息：

假设URL为：http://locahost/home/ToUrl (请求方法：ToUrl）

*/

private string httpPost(string URL, string Parameters)

{

byte[] bytes = Encoding.Default.GetBytes(Parameters);

HttpWebRequest req = (HttpWebRequest)WebRequest.Create(URL);

req.Proxy = new WebProxy(ProxyString, true);

req.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8) Gecko/20051111 Firefox/1.5";

req.Accept = "text/xml,application/xml,application/xhtml+xml,text/html";

req.KeepAlive = true;

req.Referer = string.Format("https://www.XXX.com/"; //修改为自己的referer

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

req.Method = "POST";

req.ContentLength = bytes.Length;

Stream os = req.GetRequestStream();

os.Write(bytes, 0, bytes.Length); //Push it out there

os.Close();

HttpWebResponse resp = (HttpWebResponse)req.GetResponse();

if (resp == null) return null;

StreamReader sr = new StreamReader(resp.GetResponseStream(), Encoding.UTF8);

string sReturn = sr.ReadToEnd().Trim();

resp.Close(); sr.Close();

return sReturn;

}

//接收网页数据

private string httpGet(string URL)

{

HttpWebRequest req = (HttpWebRequest)WebRequest.Create(URL);

//req.Proxy = new WebProxy(ProxyString, true); //true means no proxy

WebResponse resp = req.GetResponse();

StreamReader sr = new StreamReader(resp.GetResponseStream(), Encoding.Default);

string sReturn = sr.ReadToEnd().Trim();

resp.Close(); sr.Close();

return sReturn;

}

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