图像加解密工具类封装

加解密就是将图片转换：对字节进行异或操作，实现加解密

import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
import java.io.*;
@SpringBootTest
class DemoApplicationTests {
/**
     * 加密
     * @param decryptedFile 需要加密文件
     * @param newFile 加密后文件
     * @throws IOException
     */
    public static void decryptFile(File decryptedFile, File newFile) throws IOException {
        FileInputStream fileInputStream=new FileInputStream(decryptedFile);
        FileOutputStream fileOutputStream=new FileOutputStream(newFile);
        BufferedInputStream inputStream=new BufferedInputStream(fileInputStream);
        BufferedOutputStream outputStream=new BufferedOutputStream(fileOutputStream);
        int b;
        while ((b=inputStream.read())!=-1){
            //与5进行异或
            outputStream.write(b^5);
        }
        outputStream.flush();//刷新流
        //关闭流
        inputStream.close();
        outputStream.close();
    }

    /**
     * 解密
     * @param oldFile 需要解密文件
     * @param newFile 解密后文件
     * @throws IOException
     */
    public static void encryptedFile(File oldFile,File newFile) throws IOException {
        FileInputStream fileInputStream=new FileInputStream(oldFile);
        FileOutputStream fileOutputStream=new FileOutputStream(newFile);
        BufferedInputStream inputStream=new BufferedInputStream(fileInputStream);
        BufferedOutputStream outputStream=new BufferedOutputStream(fileOutputStream);
        int b;
        while ((b=inputStream.read())!=-1){
            //与5进行异或
            outputStream.write(b^5);
        }
        outputStream.flush();//刷新流
        //关闭流
        inputStream.close();
        outputStream.close();
    }
      @Test
    void test1() throws IOException {
//        decryptFile(new File("D:\\sxd-admin\\uploadPath\\avatar\\1.png"),new File("D:\\sxd-admin\\uploadPath\\avatar\\2.png"));
        encryptedFile(new File("D:\\sxd-admin\\uploadPath\\avatar\\2.png"),new File("D:\\sxd-admin\\uploadPath\\avatar\\3.png"));
    }
}