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import java.io.*;class copypic { public static void main(String[] args) { FileOutputStream fos = null; FileInputStream fis = null; try { fos = new FileOutputStream("d:\\1.jpg"); fis = new FileInputStream("d:\\2.jpg"); int len = 0; byte [] b = new byte[1024]; while((len = fis.read(b))!=-1) { fos.write(b,0,len); } } catch (IOException e) { throw new RuntimeException("复制文件失败"); } finally { try { if(fis!=null) fis.close(); } catch (IOException e) { throw new RuntimeException("读取关闭失败"); } try { if(fos!=null) fos.close(); } catch (IOException e) { throw new RuntimeException("写入关闭失败"); } } }} 转载地址：http://rcudl.baihongyu.com/