将字节数组保存到文件

import java.io.IOException;

import java.nio.file.Files;

import java.nio.file.Path;
/*
n o w  j a v a  . c o m
*/

import java.nio.file.Paths;


public class Main {

  public static void main(String[] args) {

    Path ball_path = Paths.get("C:/folder1/photos", "ball.png");


    try {

      byte[] ballArray = Files.readAllBytes(ball_path);

      Files.write(ball_path.resolveSibling("bytes_to_ball.png"), ballArray);        

    } catch (IOException e) {

      System.out.println(e);

    }


  }

}