在d盘下的java.txt文件复制到javacop,需要的代码谢谢

发布网友发布时间：2022-04-29 13:38

共1个回答

热心网友时间：2022-06-29 01:46

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;

/**
* 2015年12月10日下午7:52:42
*
* @author hp TODO 文件的copy
*
*/
public class CopyFile {

    private static String fromFilePath = "D://java.txt";// 原文件
    private static String toFilePath = "D://javadoc.txt";// 拷贝文件

    /**
     * 拷贝文件
     */
    public static void copy() {
        try {
            File fromFile = new File(fromFilePath);
            if (fromFile.exists()) {// 文件存在

                FileInputStream fileInputStream = new FileInputStream(fromFile);
                BufferedInputStream bufferedInputStream = new BufferedInputStream(fileInputStream);

                FileOutputStream fileOutputStream = new FileOutputStream(toFilePath);
                BufferedOutputStream bufferedOutputStream = new BufferedOutputStream(fileOutputStream);

                byte[] bits = new byte[1024];

                while (-1 != (bufferedInputStream.read(bits))) {
                    bufferedOutputStream.write(bits);
                }

                bufferedInputStream.close();
                fileInputStream.close();

                bufferedOutputStream.flush();
                bufferedInputStream.close();
                fileOutputStream.close();
                System.out.println("----- Done ---------");

            } else {
                System.err.println("文件不存在");
            }

        } catch (Exception e) {
            // TODO: handle exception
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        copy();
    }

}