asp.net(c#)从url网络地址下载图片或文件到本地硬盘

ref http://hi.baidu.com/moremoretealy/blog/item/b58d3773e506261c8601b050.html

asp.net(c#)从url网络地址下载图片或文件到本地硬盘

2007-01-14 12:53

using System; using System.Net; using System.IO; namespace Com.Net { /// /// Image 的摘要说明。 /// public class Image {    public Image()    {     //     // TODO: 在此处添加构造函数逻辑     //    }    ///    /// 从图片地址下载图片到本地磁盘    ///    /// 图片本地磁盘地址    /// 图片网址    ///    public static bool SavePhotoFromUrl(string FileName,string Url)    {     bool Value=false;     WebResponse response = null;     Stream stream = null;     try     {      HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url);              response = request.GetResponse();      stream = response.GetResponseStream();      if( !response.ContentType.ToLower().StartsWith("text/") )      {       value="/Image.SaveBinaryFile(response,FileName);      }     }     catch(Exception" err)     {      string aa=err.ToString();     }     return Value;    }    ///    /// Save a binary file to disk.    ///    /// The response used to save the file    // 将二进制文件保存到磁盘    private static bool SaveBinaryFile(WebResponse response,string FileName)    {     bool Value=true;     byte []buffer = new byte[1024];     try     {      if(Com.File.FileUtil.FileExists(FileName))       Com.File.FileUtil.DeleteFile(FileName);      Stream outStream =System.IO.File.Create( FileName );      Stream inStream = response.GetResponseStream();          int l;      do      {       l = inStream.Read(buffer,0,buffer.Length);       if(l>0)        outStream.Write(buffer,0,l);      }      while(l>0);          outStream.Close();      inStream.Close();     }     catch     {      Value=false;     }     return Value;    } } }