2014.11.19超级复制

<h2><span style="font-size:18px;color:#ff0000;"><strong>1.</strong></span></h2><pre name="code" class="java"><span style="font-size:18px;">package com.hechao;import java.io.ByteArrayInputStream;import java.io.ByteArrayOutputStream;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.ObjectInputStream;import java.io.ObjectOutputStream;import java.io.Serializable;import java.nio.channels.FileChannel;public class SuperCopy {/** * IO文件拷贝 * @param o需拷贝对象 * @return拷贝的新对象 * @throws Exception拷贝异常 */@SuppressWarnings("unchecked")public static <T extends Serializable> T deepClone(T o) throws Exception {// 将对象序列化到内存中ByteArrayOutputStream out = new ByteArrayOutputStream();ObjectOutputStream oos = new ObjectOutputStream(out);oos.writeObject(o);// 从内存中反序列化对象ByteArrayInputStream in = new ByteArrayInputStream(out.toByteArray());ObjectInputStream ois = new ObjectInputStream(in);return (T) ois.readObject();}/** * NIO拷贝文件 * @param in需拷贝的目标文件 * @param out拷贝后的新文件 * @throws Exception拷贝异常 */public static void copyFile(File in, File out) throws Exception {//创建输出通道@SuppressWarnings("resource")FileChannel sourceChannel = new FileInputStream(in).getChannel();//创建输入通道@SuppressWarnings("resource")FileChannel destinationChannel = new FileOutputStream(out).getChannel();//将输入通道的数据传输到输出通道sourceChannel.transferTo(0, sourceChannel.size(), destinationChannel);//关闭通道sourceChannel.close();destinationChannel.close();sourceChannel = null;destinationChannel = null;}}</span>

2.

<span style="font-size:18px;">package com.hechao;import java.io.File;/** * NIO文件拷贝测试 * @author hechao * */public class Test01 {public static void main(String[] args) {File in = new File("C:/Users/hechao/Desktop/JavaIO-9.wmv");File out = new File("D:/javasp.wmv");try {SuperCopy.copyFile(in, out);} catch (Exception e) {e.printStackTrace();}}}</span>