Question

我从http://download.geonames.org/export/dump/下载3（2个zip 1 txt文件）文件，使用WebClient和一个大小为9 Mb的zip文件，当我下载它的大小为215 Mb并且损坏了..我尝试使用WebRequest和FileStream类但又有相同的结果..

我的备用WebClient下载方法：

private void MyDownloadFile(Uri url, string outputFilePath)
        {
            const int BUFFER_SIZE = 16 * 1024;
            using (var outputFileStream = File.Create(outputFilePath, BUFFER_SIZE))
            {
                var req = WebRequest.Create(url);
                using (var response = req.GetResponse())
                {
                    using (var responseStream = response.GetResponseStream())
                    {
                        var buffer = new byte[BUFFER_SIZE];
                        int bytesRead;
                        do
                        {
                            bytesRead = responseStream.Read(buffer, 0, BUFFER_SIZE);
                            outputFileStream.Write(buffer, 0, bytesRead);
                        } while (bytesRead > 0);
                    }
                }
            }
        }

private void DownloadFile(String Url, String ResultFileName)
        {
            HttpWebRequest wr = (HttpWebRequest)HttpWebRequest.Create(Url);
            HttpWebResponse ws = (HttpWebResponse)wr.GetResponse();
            Stream str = ws.GetResponseStream();

            byte[] inBuf = new byte[100000];
            int bytesReadTotal = 0;

            FileStream fstr = new FileStream(ResultFileName, FileMode.Create, FileAccess.Write);

            while (true)
            {
                int n = str.Read(inBuf, 0, 100000);
                if ((n == 0) || (n == -1))
                {
                    break;
                }

                fstr.Write(inBuf, 0, n);

                bytesReadTotal += n;
            }

            str.Close();
            fstr.Close();
        }

下载时损坏的文件网址：http://download.geonames.org/export/dump/allCountries.zip

任何人，有同样的问题或者可以编写正确上传此zip文件的方法吗？或者我可能做错了什么？

Answer 1

如何使用WebClient.DownloadFile方法（WebClient.DownloadFile）

using (var wc = new WebClient())
{
  wc.DownloadFile(Url, ResultFileName);
}

通过URL下载时损坏的zip文件

1 个答案: