HTTP get方式调用接口

//Url 地址

//postDataStr参数

public static string HttpGet(string Url, string postDataStr)

{

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url + (postDataStr == "" ? "" : "?") + postDataStr);

request.Method = "GET";

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

request.Credentials = CredentialCache.DefaultCredentials;

//SetHeaderValue(request.Headers, "Connection", "close");

//request.ContentLength = 2;

string retString = string.Empty;

try

{

HttpWebResponse response = (HttpWebResponse)request.GetResponse();

Stream myResponseStream = response.GetResponseStream();

StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));

retString = myStreamReader.ReadToEnd();

myStreamReader.Close();

myResponseStream.Close();

}

catch (Exception)

{

throw;

}

return retString;

}

try

{

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);

request.Method = "GET";

request.Timeout = 6000;

HttpWebResponse response = request.GetResponse() as HttpWebResponse;

Stream stream = response.GetResponseStream();

StreamReader reader = new StreamReader(stream, Encoding.UTF8);

string retring = reader.ReadToEnd();

retring = retring.Split(new char[] { ':', '{', '}', ',', '"' }, StringSplitOptions.RemoveEmptyEntries)[1];

reader.Close();

stream.Close();

return retring;

}

catch (Exception)

{

throw;

}