java文件管道拷贝工具类

package com.wlkj.util;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.channels.FileChannel;

public class FileService {
	
	 public static void fileChannelCopy(File s, File t) {

	        FileInputStream fi = null;

	        FileOutputStream fo = null;

	        FileChannel in = null;

	        FileChannel out = null;

	        try {

	            fi = new FileInputStream(s);

	            fo = new FileOutputStream(t);

	            in = fi.getChannel();// 得到对应的文件通道

	            out = fo.getChannel();// 得到对应的文件通道

	            in.transferTo(0, in.size(), out);// 连接两个通道，并且从in通道读取，然后写入out通道

	        } catch (IOException e) {

	            e.printStackTrace();

	        } finally {

	            try {

	                fi.close();

	                in.close();

	                fo.close();

	                out.close();

	            } catch (IOException e) {

	                e.printStackTrace();

	            }

	        }

	    }
}