java copy 文件夹

/**
 * copy 文件夹
 */


import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

public class CopyFile {
	private void copyFile(File source, File target) {// copy 文件
		FileInputStream inFile = null;
		FileOutputStream outFile = null;
		try {
			inFile = new FileInputStream(source);
			outFile = new FileOutputStream(target);
			byte[] buffer = new byte[1024];
			int i = 0;
			while ((i = inFile.read(buffer)) != -1) {
				outFile.write(buffer, 0, i);
			}
			inFile.close();
			outFile.close();
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			try {
				if (inFile != null) {
					inFile.close();
				}
				if (outFile != null) {
					outFile.close();
				}
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
	}

	// 处理目录
	public void copyDict(File source, File target) {
		File[] file = source.listFiles();// 得到源文件下的文件项目
		for (int i = 0; i < file.length; i++) {
			if (file[i].isFile()) {// 判断是文件
				File sourceDemo = new File(source.getAbsolutePath() + "/"
						+ file[i].getName());
				File destDemo = new File(target.getAbsolutePath() + "/"
						+ file[i].getName());
				this.copyFile(sourceDemo, destDemo);
			}
			if (file[i].isDirectory()) {// 判断是文件夹
				File sourceDemo = new File(source.getAbsolutePath() + "/"
						+ file[i].getName());
				File destDemo = new File(target.getAbsolutePath() + "/"
						+ file[i].getName());
				destDemo.mkdir();// 建立文件夹
				this.copyDict(sourceDemo, destDemo);
			}
		}// end copyDict

	}
}