C#使用post发送和接收数据的方法

public partial class Post_Server : System.Web.UI.Page{ protected void Page_Load(object sender, EventArgs e) {  string type = "";  string Re = "";  Re += "数据传送方式：";  if (Request.RequestType.ToUpper() == "POST")  {   type = "POST";   Re += type + "<br/>参数分别是：<br/>";   SortedList table = Param();   if (table != null)   {    foreach (DictionaryEntry De in table) {     Re += "参数名：" + De.Key + " 值：" + De.Value + "<br/>";    }   }   else   { Re = "你没有传递任何参数过来！"; }  }  else  {   type = "GET";   Re += type + "<br/>参数分别是：<br/>";   NameValueCollection nvc = GETInput();   if (nvc.Count != 0)   {    for (int i = 0; i < nvc.Count; i++){    Re += "参数名："+nvc.GetKey(i)+"值："+nvc.GetValues(i)[0]+"<br/>"; }   }   else   { Re = "你没有传递任何参数过来！"; }  }  Response.Write(Re); } //获取GET返回来的数据 private NameValueCollection GETInput() { return Request.QueryString; } // 获取POST返回来的数据 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();   s.Dispose();   return builder.ToString();  }  catch (Exception ex)  { throw ex; } } private SortedList Param() {  string POSTStr = PostInput();  SortedList SortList = new SortedList();  int index = POSTStr.IndexOf("&");  string[] Arr = { };  if (index != -1) //参数传递不只一项  {   Arr = POSTStr.Split('&');   for (int i = 0; i < Arr.Length; i++)   {    int equalindex = Arr[i].IndexOf('=');    string paramN = Arr[i].Substring(0, equalindex);    string paramV = Arr[i].Substring(equalindex + 1);    if (!SortList.ContainsKey(paramN))    //避免用户传递相同参数    { SortList.Add(paramN, paramV); }    else //如果有相同的，一直删除取最后一个值为准    {     SortList.Remove(paramN); SortList.Add(paramN, paramV);    }   }  }  else //参数少于或等于1项  {   int equalindex = POSTStr.IndexOf('=');   if (equalindex != -1)   { //参数是1项    string paramN = POSTStr.Substring(0, equalindex);    string paramV = POSTStr.Substring(equalindex + 1);    SortList.Add(paramN, paramV);   }   else //没有传递参数过来   { SortList = null; }  }  return SortList; }}protected void Button1_Click(object sender, EventArgs e){  Encoding encode = System.Text.Encoding.GetEncoding("utf-8");  byte[] arrB = encode.GetBytes("aa=aa&bb=好飞");  HttpWebRequest myReq = (HttpWebRequest)WebRequest.Create("http://localhost:11626/MyTest/Post_Server.aspx");  myReq.Method = "POST";  myReq.ContentType = "application/x-www-form-urlencoded";  myReq.ContentLength = arrB.Length;  Stream outStream = myReq.GetRequestStream();  outStream.Write(arrB, 0, arrB.Length);  outStream.Close();  //接收HTTP做出的响应  WebResponse 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);  string str = null;  while (count > 0)  {   str += new String(read, 0, count);   count = readStream.Read(read, 0, 256);  }  readStream.Close();  myResp.Close();  Response.Write(str);}