java_IO读写模版

		InputStream in = null;
		OutputStream out = null;
		
		try{
			in = new FileInputStream();
			int len=0;
			byte buffer[] = new byte[1024];
			out = new FileOutputStream();
			while((len=in.read(buffer))>0){
				out.write(buffer,0,len);
			}
		}finally{
			if(in!=null){
				try{
					in.close();
				}catch(Exception e){
					e.printStackTrace();
				}
				
			}
			if(out!=null){
				try{
					out.close();
				}catch(Exception e){
					e.printStackTrace();
				}
				
			}
		}