Java中如何进行文件复制呢？

实现思路:
    借助FileInputStream对象和
	    FileOutPutStream对象即可进行文件的复制操作，如下所示:

package com.java265.other;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.channels.FileChannel;
public class test {
	/*
	 * java265.com 复制文件的示例分享
	 */
	public static void main(String[] args) throws Exception {

		File a = new File("D:\\test.txt");
		File b = new File("D:\\test2.txt");
		copyFile(a, b);
	}

	public static void copyFile(File sourceFile, File destFile) throws IOException {
		if (!destfile.exists()) {
			destFile.createNewFile();
		}

		FileChannel source = null;
		FileChannel destination = null;

		try {
			source = new FileInputStream(sourceFile).getChannel();
			destination = new FileOutputStream(destFile).getChannel();
			destination.transferFrom(source, 0, source.size());
		} finally {
			if (source != null) {
				source.close();
			}
			if (destination != null) {
				destination.close();
			}
		}
	}
}