delphi實現post請求

delphi實現post請求，前提頭部先引用IDHttp組件

var
fhttpRequest: TIdHTTP;
PostData : TStringStream;
tmpStr : String;

begin

fhttpRequest := TIdHTTP.Create(nil);
  fhttpRequest.HandleRedirects := True;//允許頭轉向
  fhttpRequest.ReadTimeout := 5000;//請求超時設置
  fhttpRequest.Request.ContentType := 'application/x-www-form-urlencoded';//設置內容類型為json
  PostData := TStringStream.Create('');
  //PostData.Position := 0;//將流位置置為0
  PostData.WriteString('encode=773130f7236b15405c9497c19bf24a038ba04197f017bfb0dd66d455bcb75e9e580');
  PostData.WriteString('302a5d177cae445ae6c97be24a74344c2cade3dee0015cda9e3ef05a71a9b32409f7d026e633a8125d8d62298aa1a5d35c50e40dc316a07b355d4f70b712b73f37befe911824a78ec556556951d2bf76ec4944e73cbc3b2b88ada31a85b09');
  tmpStr := fhttpRequest.Post('http://10.32.8.34:8081/phis/EncodeServlet',PostData); //tmpStr是提交后返回的數據
  fhttpRequest.free;
  PostData.Free;
  Result:=tmpStr;
end;