File converted to Base64

File converted to Base64, mainly for picture transmission. 

. 1  Import java.io.File;
 2  Import a java.io.FileInputStream;
 . 3  Import java.io.IOException;
 . 4  Import a java.io.InputStream;
 . 5  Import sun.misc.BASE64Encoder;
 . 6  
. 7  public  class Base64Util {
 . 8      
. 9      / * * 
10       * Base64 string into the file
 . 11       * @param file
 12 is       * @return 
13 is       * / 
14      public  static string getFileBase64 (file file) {        
 15         InputStream in = null;  
16         byte[] data = null;  
17         try{  
18             in = new FileInputStream(file);          
19             data = new byte[in.available()];  
20             in.read(data);  
21         }catch (IOException e){  
22             e.printStackTrace();  
23         }finally {
24             if (in != null) {
25                 try {    in.close();    } catch (IOException e) {    e.printStackTrace();    }  
26             }
28         }
29         //Base64编码  
30         BASE64Encoder encoder = new BASE64Encoder();  
31         return encoder.encode(data);
32     }  
3340 }