private static void DownloadFile(string url)
{
WebRequest WebRequestObject = HttpWebRequest.Create(url);
WebResponse ResponseObject = WebRequestObject.GetResponse();
HttpContext.Current.Response.Clear();
HttpContext.Current.Response.Headers.Add(ResponseObject.Headers);
Stream stream = ResponseObject.GetResponseStream();
MemoryStream stmMemory = new MemoryStream();
byte[] buffer = new byte[64 * 1024];
int i;
while ((i = stream.Read(buffer, 0, buffer.Length)) > 0)
{
stmMemory.Write(buffer, 0, i);
}
byte[] arraryByte = stmMemory.ToArray();
stmMemory.Close();
if (ResponseObject.ContentType.Contains("application/json"))
{
MediaFile.DownloadReturnValue retValue = JsonConvert.DeserializeObject <MediaFile.DownloadReturnValue>(System.Text.Encoding.UTF8.GetString(arraryByte));
if (retValue.ErrorCode != 0)
{
throw new Exception("获取媒体文件异常。ErrorCode=" + retValue.ErrorCode + ",ErrorMessage=" + retValue.ErrorMessage);
}
}
HttpContext.Current.Response.OutputStream.Write(arraryByte, 0, arraryByte.Length);
}
public static MediaFile.DownloadReturnValue DownloadData(string mediaId)
{
string url = ServiceUrl.DownloadMediaFile_Temp + "?access_token=" + AccessToken.Value + "&media_id=" + mediaId;
WebRequest WebRequestObject = HttpWebRequest.Create(url);
WebResponse ResponseObject = WebRequestObject.GetResponse();
MediaFile.DownloadReturnValue retValue = new MediaFile.DownloadReturnValue();
retValue.FileSize = ResponseObject.ContentLength;
foreach (var key in ResponseObject.Headers.AllKeys)
{
switch (key.ToLower())
{
case "content-disposition":
int index = ResponseObject.Headers[key].IndexOf("filename=");
string[] a = ResponseObject.Headers[key].Remove(0, index + 9).Split(new char[] { '"' }, StringSplitOptions.RemoveEmptyEntries);
if (a.Length > 0)
{
retValue.FileName = a[0];
}
break;
case "content-type":
retValue.ContentType = ResponseObject.Headers[key];
break;
default:
break;
}
}
retValue.FileStream = ResponseObject.GetResponseStream();
MemoryStream stmMemory = new MemoryStream();
byte[] buffer = new byte[64 * 1024];
int i;
while ((i = retValue.FileStream.Read(buffer, 0, buffer.Length)) > 0)
{
stmMemory.Write(buffer, 0, i);
}
retValue.FileData = stmMemory.ToArray();
stmMemory.Close();
if (ResponseObject.ContentType.Contains("application/json"))
{
MediaFile.DownloadReturnValue retValue2 = JsonConvert.DeserializeObject <MediaFile.DownloadReturnValue>(System.Text.Encoding.UTF8.GetString(retValue.FileData));
if (retValue2.ErrorCode != 0)
{
retValue = retValue2;
}
}
return(retValue);
}
