C#使用post发送和接收数据的方法

本文实例讲述了c#使用post发送和接收数据的方法。分享给大家供大家参考。具体实现方法如下：

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);
}

希望本文所述对大家的c#程序设计有所帮助。