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package ba; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.util.*; public class huancunTest { /** * @param args */ public static void main(String[] args) { Date d1=new Date(); Date d2=new Date(); long l1=d1.getTime(); copy("G:/a.png","G:/test/a.png"); long l2=d2.getTime(); System.out.println(l2-l1); } public static void copy(String str,String des){ File srcFile = new File(str); File desFile = new File(des); BufferedInputStream bis = null; BufferedOutputStream bos = null; try { bis = new BufferedInputStream(new FileInputStream(srcFile)); bos = new BufferedOutputStream(new FileOutputStream(desFile)); byte[]b=new byte[1024]; int len=0; try { while((len=bis.read(b))>0){ bos.write(b,0,len); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); }finally{ if(bis!=null){ try { bis.close(); bos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } } }
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原文地址:http://www.cnblogs.com/xiaoqisfzh/p/4703164.html