基于字节流和字符流实现的文件复制

import java.io.*;

 

import java.io.File;

 

/**

 * @author 极致书生 基于字节流实现的文件的拷贝

 *

 */

public class ByteCopy {

 

    public static void main(String[] args) {

        File f_s = new File("g:/wjl/jizhishusheng.txt"); // 要拷贝的文件对象

        File f_d = new File("D:/yxm"); // 要拷贝到的路径

        if (!f_d.exists()) { // 判断要拷贝到的路径是否存在，不存在就创建

            f_d.mkdirs();

 

        }

        File f_dd = new File(f_d, "7s.txt");

        FileInputStream fis = null;

        FileOutputStream fos = null;

        try {

            fis = new FileInputStream(f_s);

            fos = new FileOutputStream(f_dd);

            byte[] byteTemp = new byte[1024];

            while(fis.read(byteTemp) != -1){

                int size =byteTemp.length;

                fos.write(byteTemp,0,size);

                 

            }

        } catch (FileNotFoundException e) {

            e.printStackTrace();

        } catch (IOException e) {

            e.printStackTrace();

        }

        finally {

            try {

                if (fis != null) {

                    fos.close();

 

                }

                if (fos != null) {

                    fis.close();

 

                }

            } catch (IOException e) {

                e.printStackTrace();

            }

 

        }

 

    }

 

}

 

 

package com.neusoft.mytest.myproj;

 

import java.io.*;

 

import java.io.File;

 

/**

 * @author 极致书生 基于字符流实现的文件的拷贝

 *

 */

public class CharCopy {

 

    public static void main(String[] args) {

        File f_s = new File("g:/wjl/jizhishusheng.txt"); // 要拷贝的文件对象

        File f_d = new File("D:/yxm"); // 要拷贝到的路径

        if (!f_d.exists()) { // 判断要拷贝到的路径是否存在，不存在就创建

            f_d.mkdirs();

 

        }

        File f_dd = new File(f_d, "7s.txt");

        FileReader fis = null;

        FileWriter fos = null;

        try {

            fis = new FileReader(f_s);

            fos = new FileWriter(f_dd);

            char[] charTemp = new char[1];

            while (fis.read(charTemp) != -1) {

                int size = charTemp.length;

                fos.write(charTemp, 0, size);

            }

        } catch (FileNotFoundException e) {

            e.printStackTrace();

        } catch (IOException e) {

            e.printStackTrace();

        } finally {

            try {

                if (fis != null) {

                    fos.close();

 

                }

                if (fos != null) {

                    fis.close();

 

                }

            } catch (IOException e) {

                e.printStackTrace();

            }

 

        }

 

    }

 

}