post&get请求总结

1.将get获取的数据，UrlDecode后返回

public static string SendGet(string url)

{

　　HttpWebRequest httpWebRequest = (HttpWebRequest)HttpWebRequest.Create(url);

　　httpWebRequest.Method = "GET";

　　HttpWebResponse httpWebResponse = httpWebRequest.GetResponse() as HttpWebResponse;

　　Stream stream = httpWebResponse.GetResponseStream();

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

　　string strOut = streamReader.ReadToEnd();

　　httpWebResponse.Close();

　　strOut = HttpUtility.UrlDecode(strOut);

　　return strOut;

}

2.post请求，StreamReader方法获取ResponseStream中的信息

public static string SendPost(string data, string url, string contentType)

{

　　string content = string.Empty;

　　HttpWebRequest httpWebRequest = WebRequest.Create(url) as HttpWebRequest;

　　httpWebRequest.AllowAutoRedirect = true;

　　httpWebRequest.Method = "POST";

　　httpWebRequest.ContentType = contentType;

　　using (StreamWriter sw = new StreamWriter(httpWebRequest.GetRequestStream()))

　　{

　　　　sw.Write(data);

　　}

　　HttpWebResponse httpWebResponse = httpWebRequest.GetResponse() as HttpWebResponse;

　　using (StreamReader sr = new StreamReader(httpWebResponse.GetResponseStream()))

　　{

　　　　content = sr.ReadToEnd();

　　}

　　return content;

}

3.post请求，通过Stream.Read方法获取ResponseStream中的信息

 public static String RequestUrl(String url, byte[] data, String method = "POST")

 {

     try

     { 

     　　WebRequest request = WebRequest.Create(url);

        request.Method = method;

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

        if (data != null && data.Length > 0)

        {

            request.ContentLength = data.Length;

            Stream newStream = request.GetRequestStream();

            newStream.Write(data, 0, data.Length);

            newStream.Close();

        }

        else

        {

            request.ContentLength = 0;

        }

        WebResponse response = request.GetResponse();

        Stream stream = response.GetResponseStream();

        MemoryStream ms = new MemoryStream();

        long ChunkSize = 1024;

        byte[] buffer = new byte[ChunkSize];

        long dataLengthToRead = response.ContentLength;//获取响应数据的总大小

        while (dataLengthToRead > 0) { int lengthRead = stream.Read(buffer, 0, Convert.ToInt32(ChunkSize));//读取的大小

            ms.Write(buffer, 0, lengthRead); dataLengthToRead = dataLengthToRead - lengthRead; }

        stream.Close();

        response.Close(); 

        string responseText = Encoding.UTF8.GetString(ms.ToArray());

        return responseText; 

    }

    catch (Exception ex)

    {

        return ex.Message;

    }

}