HTTP (httpwebrequest)

1.GET请求：

public static string Get(string url)
        {
            string buffer = "";
            try
            {
                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
                request.Proxy = new WebProxy();
                request.Method = "GET";
                HttpWebResponse response = (HttpWebResponse)request.GetResponse();
                Stream stream = response.GetResponseStream();
                StreamReader reader = new StreamReader(stream, System.Text.Encoding.UTF8);
                buffer = reader.ReadToEnd();
                reader.Close();
                response.Close();

            }
            catch (Exception ex)
            {
                MessageBox.Show("网络异常");
                return "";
            }
            return buffer;
        }

2.POST请求：

public static string Send(string url, byte[] data)
        {
            string buffer = "";
            try
            {
                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
                request.Proxy = new WebProxy();
                request.Timeout =  * ;
                request.Method = "POST";
                request.ContentType = "application/x-www-form-urlencoded";
                request.ContentLength = data.Length;

                Stream newStream = request.GetRequestStream();
                newStream.Write(data, , data.Length);
                newStream.Close();

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

                Stream stream = response.GetResponseStream();
                StreamReader reader = new StreamReader(stream, System.Text.Encoding.UTF8);
                buffer = reader.ReadToEnd();

                reader.Close();
                response.Close();

            }
            catch (Exception ex)
            {
                MessageBox.Show("网络异常");
                return "";
            }
            return buffer;
        }