WPF 从服务器下载文件

1、

 1  string serverFilePath ="http://192.168.1.222:9111/Doc/Test.docx";
 2             string serverFileName = string.Empty;
 3             int nameIndex = serverFilePath.LastIndexOf("/");
 4             if (nameIndex > 0)
 5             {
 6                 serverFileName = serverFilePath.Substring(nameIndex + 1);
 7             }
 8             string dirPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Test");
 9             if (!Directory.Exists(dirPath))
10             {
11                 DirectoryInfo directoryInfo = new DirectoryInfo(dirPath);
12                 directoryInfo.Create();
13             }
14             string localPath = Path.Combine(dirPath,serverFileName);

2、

 1  public void DownloadFile(string serverFilePath, string localPath)
 2         {
 3             HttpWebRequest request = (HttpWebRequest)WebRequest.Create(serverFilePath);
 4             WebResponse respone = request.GetResponse();
 5             Stream netStream = respone.GetResponseStream();
 6             using (Stream fileStream = new FileStream(localPath, FileMode.Create))
 7             {
 8                 byte[] read = new byte[1024];
 9                 int realReadLen = netStream.Read(read, 0, read.Length);
10                 while (realReadLen > 0)
11                 {
12                     fileStream.Write(read, 0, realReadLen);
13                     realReadLen = netStream.Read(read, 0, read.Length);
14                 }
15                 netStream.Close();
16                 fileStream.Close();
17             }
18 
19         }