java base64加密文件 及解密到文件

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import javafx.scene.control.ButtonType;
import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;


public class Base64Tools {

    /**
     * 将文件转成base64 字符串
     *
     * @param path 文件路径
     * @return
     */
    public static String encodeBase64File(String path) {
        try {
//将文件 转换为字符串
            File file = new File(path);
            FileInputStream inputFile = new FileInputStream(file);
            byte[] buffer = new byte[(int) file.length()];
            inputFile.read(buffer);
            inputFile.close();
            System.err.println("加密");
//字符串加密
            return new BASE64Encoder().encode(buffer);
        } catch (Exception e) {
      
            e.printStackTrace();

        }
        return “ok”;
    }

    /**
     * 将base64字符解码保存文件
     *
     * @param base64Code  加密的base64
     * @param targetPath 保存的文件夹路径名
     */
    public static void decoderBase64File(String base64Code, String targetPath) {
        try {
            byte[] buffer = new BASE64Decoder().decodeBuffer(base64Code);
            FileOutputStream out = new FileOutputStream(targetPath);
            out.write(buffer);
            out.close();
            System.err.println("解码");
        } catch (Exception e) {
           
            e.printStackTrace();
        }
    }
}