fuxueliang

import  java.io.BufferedInputStream;
import  java.io.BufferedOutputStream;
import  java.io.File;
import  java.io.FileOutputStream;
import  java.io.IOException;
import  java.net.URL;
import  java.net.URLConnection;

public   class  DownloadFormURL {

     public   static   void  main(String[] args) {
         try  {
             new  DownloadFormURL().downloadFile( " http://127.0.0.1:8080/image/f.jpg " ,  new  File( " F:/image.jpg " ));
        }  catch  (IOException e) {
            e.printStackTrace();
        }
    }

     public   void  downloadFile(String sourceURL, File targetFile)  throws  IOException {

        URL url  =   new  URL(sourceURL);
        URLConnection connection  =  url.openConnection();
        java.io.InputStream inputStream  =  connection.getInputStream();
        FileOutputStream outputStream  =   new  FileOutputStream(targetFile);
        BufferedInputStream in  =   null ;
        BufferedOutputStream out  =   null ;
         byte  buffer[]  =   new   byte [ 8192 ];
         try  {
            in  =   new  BufferedInputStream(inputStream, buffer.length);
            out  =   new  BufferedOutputStream(outputStream, buffer.length);
             int  total  =   0 ;
             for  ( int  bytesRead  =   0 ; (bytesRead  =  in.read(buffer))  !=   - 1 ;) {
                out.write(buffer,  0 , bytesRead);
                total  +=  bytesRead;
            }

        }  finally  {
            in.close();
            out.close();
        }
         return ;
    }
}