[开发工具]IO之文件的拷贝

package com.qiang.IO;

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

public class FileCopy {

    public static void main(String[] args) {
        copy("D:/Ideal wrok space/aa.txt","D:/Ideal wrok space/bb.txt");
    }
    /**
     * 文件拷贝
     * @param sourcePath 源文件的绝对为止
     * @param targetPath 目标文件的绝对位置
     */
    public  static void  copy(String sourcePath, String targetPath){
        FileInputStream fileInputStream = null;
        FileOutputStream fileOutputStream = null;


        try {
            fileInputStream = new FileInputStream(sourcePath);
            fileOutputStream = new FileOutputStream(targetPath);
            byte[] bytes = new byte[1024];
            int len = 0;
            while ((len= fileInputStream.read(bytes))>=0){
                fileOutputStream.write(bytes, 0,len);
            }

        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {

            if (fileInputStream!= null){
                try {
                    fileInputStream.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }

            }

            if (fileOutputStream != null){
                try {
                    fileOutputStream.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }

    }
}