C#请求远程服务器的资源

最新推荐文章于 2023-07-30 00:01:00 发布

转载最新推荐文章于 2023-07-30 00:01:00 发布 · 223 阅读

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原文链接：http://www.cnblogs.com/lei1217/archive/2008/12/25/1361938.html

本文介绍了两种实用的方法：一种是通过发送HEAD请求来获取远程服务器上文件的大小；另一种是使用GET请求来下载指定URL的文件，并保存到本地。

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using System.IO;

1、获取远程服务器文件的大小
public static long GetRemoteHTTPFileSize(string sURL)
{
     long size = 0L;
      try
      {
           System.Net.HttpWebRequest request = (System.Net.HttpWebRequest)System.Net.WebRequest.Create(sURL);
           request.Method = "HEAD";

System.Net.HttpWebResponse response = (System.Net.HttpWebResponse)request.GetResponse();

            size = response.ContentLength;
             response.Close();
        }
        catch
        {
             size = 0L;
        }
        return size;
}

2、下载远程服务器的文件
public static void GetRemoteHTTPFileDown(string sURL)
{
      Stream content = null;
      try
      {
               System.Net.HttpWebRequest request = (System.Net.HttpWebRequest)System.Net.WebRequest.Create(URL);
                request.Method = "GET";

System.Net.HttpWebResponse response = (System.Net.HttpWebResponse)request.GetResponse();

                content = response.GetResponseStream();
                StreamReader sr = new StreamReader(content, System.Text.Encoding.Default);
                string str = sr.ReadToEnd();
                StreamWriter sw = new StreamWriter(Server.MapPath("~/1.txt"), false, System.Text.Encoding.Unicode);
                sw.Write(str);
                sw.Flush();
                sw.Close();
                sr.Close();
                response.Close();
        }
       catch
       { }
}

转载于:https://www.cnblogs.com/lei1217/archive/2008/12/25/1361938.html