C# Image Download

 
    1 
   using 
    System;
 
    2 
    
   using 
    System.Collections.Generic;
 
    3 
    
   using 
    System.Text;
 
    4 
    
   using 
    System.Drawing;
 
    5 
    
   using 
    System.Drawing.Imaging;
 
    6 
    
   using 
    System.IO;
 
    7 
    
   using 
    System.Net;
 
    8 
   
 
    9 
   
 
   10 
    
   namespace 
    COMP
 
   11 
   {
 
   12 
     
   public 
     
   class 
    DownloadImage
 
   13 
    {
 
   14 
     
   private 
     
   string 
    imageUrl;
 
   15 
     
   private 
    Bitmap bitmap;
 
   16 
     
   /// 
     
   <summary> 
   
 
   17 
     
   /// 
    涂聚文 2011-05-05
 
   18 
     
   /// 
    
 
   19 
     
   /// 
     
   </summary> 
   
 
   20 
     
   /// 
     
   <param name="imageUrl"></param> 
   
 
   21 
    
     
   public 
    DownloadImage( 
   string 
    imageUrl)
 
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    {
 
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   this 
   .imageUrl  
   = 
    imageUrl;
 
   24 
    }
 
   25 
     
   /// 
     
   <summary> 
   
 
   26 
     
   /// 
    
 
   27 
     
   /// 
     
   </summary> 
   
 
   28 
    
     
   public 
     
   void 
    Download()
 
   29 
    {
 
   30 
     
   try 
   
 
   31 
    {
 
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    WebClient client  
   = 
     
   new 
    WebClient();
 
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    Stream stream  
   = 
    client.OpenRead(imageUrl);
 
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    bitmap  
   = 
     
   new 
    Bitmap(stream);
 
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    stream.Flush();
 
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    stream.Close();
 
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    }
 
   38 
     
   catch 
    (Exception e)
 
   39 
    {
 
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    Console.WriteLine(e.Message);
 
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    }
 
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    }
 
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   /// 
     
   <summary> 
   
 
   44 
     
   /// 
    
 
   45 
     
   /// 
     
   </summary> 
   
 
   46 
     
   /// 
     
   <returns></returns> 
   
 
   47 
    
     
   public 
    Bitmap GetImage()
 
   48 
    {
 
   49 
     
   return 
    bitmap;
 
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    }
 
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   /// 
     
   <summary> 
   
 
   52 
     
   /// 
    
 
   53 
     
   /// 
     
   </summary> 
   
 
   54 
     
   /// 
     
   <param name="filename"></param> 
   
 
   55 
     
   /// 
     
   <param name="format"></param> 
   
 
   56 
    
     
   public 
     
   void 
    SaveImage( 
   string 
    filename, ImageFormat format)
 
   57 
    {
 
   58 
     
   if 
    (bitmap  
   != 
     
   null 
   )
 
   59 
    {
 
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    bitmap.Save(filename, format);
 
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    }
 
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    }
 
   63 
   
 
   64 
    }
 
   65 
   }