c#POST请求和接收post请求

c# post请求发送数据

/// <summary>
/// POST请求
/// </summary>
/// <param name="url">请求地址</param>
/// <param name="val">请求值</param>
/// <param name="encoding">编码格式</param>
/// <returns></returns>
public string GetHttpPostResponse(string url, string val, Encoding encoding)
{
string strResult = string.Empty;
try
{
HttpWebRequest myReq = (HttpWebRequest)HttpWebRequest.Create(url);
myReq.Method = "Post";
myReq.ContentType = "application/x-www-form-urlencoded";
byte[] byteArray = encoding.GetBytes(val);
myReq.ContentLength = byteArray.Length;
Stream stream = myReq.GetRequestStream();
stream.Write(byteArray, 0, byteArray.Length);
stream.Close();
HttpWebResponse HttpWResp = (HttpWebResponse)myReq.GetResponse();
Stream myStream = HttpWResp.GetResponseStream();
StreamReader sr = new StreamReader(myStream, encoding);
strResult = sr.ReadToEnd();
}
catch{}
return strResult;
}

如果数据量过大，则建议使用流的方式

方法如下

byte[] bytes=null;
if(sType=="2")
{
bytes= Encoding.UTF8.GetBytes(sb.ToString());
}
else
{
bytes= Encoding.UTF8.GetBytes(sbd.ToString());
}
bool b =PostBaitourZrateModel(strurl,bytes);

/// <summary>
/// POST数据得到结果
/// </summary>
/// <param name="strUrl">URL</param>
/// <param name="strParm">参数</param>
/// <returns>string</returns>
private static bool PostBaitourZrateModel(string strUrl, byte[] strParm)
{
StringBuilder str = new StringBuilder();
bool isRec = false;
try
{
Encoding encode = System.Text.Encoding.UTF8;
HttpWebRequest myReq = (HttpWebRequest)WebRequest.Create(strUrl);
myReq.Timeout = 900000;
myReq.Method = "POST";
myReq.ContentType = "multipart/form-data";
myReq.ContentLength = strParm.Length;
myReq.AllowWriteStreamBuffering = false;
Stream outStream = myReq.GetRequestStream();
outStream.Write(strParm, 0, strParm.Length);
outStream.Close();
WebResponse myResp = null;
myResp = myReq.GetResponse();
Stream ReceiveStream = myResp.GetResponseStream();
StreamReader readStream = new StreamReader(ReceiveStream, encode);
Char[] read = new Char[256];
int count = readStream.Read(read, 0, 256);
while (count > 0)
{
str.Append(new String(read, 0, count));
count = readStream.Read(read, 0, 256);
}
readStream.Close();
myResp.Close();
if (str.ToString().ToUpper().IndexOf("SUCCESS") >= 0)
{
isRec = true;
}
}
catch (Exception ex)
{
isRec = false;
new Error().WriteFilesErrorLog(ex.Message,"12580消息通知");
}
return isRec;
}

C#接收post请求的数据

	private string PostInput()
        {
            try
            {
                System.IO.Stream s = Request.InputStream;
                int count = 0;
                byte[] buffer = new byte[1024];
                StringBuilder builder = new StringBuilder();
                while ((count = s.Read(buffer, 0, 1024)) > 0)
                {
                    builder.Append(Encoding.UTF8.GetString(buffer, 0, count));
                }
                s.Flush();
                s.Close();
                return builder.ToString();
            }
            catch (Exception ex)
            { throw ex; }
        }