package com.sandu.ximon.admin.security;

import sun.misc.BASE64Decoder;

import java.io.FileOutputStream;
import java.io.OutputStream;

public class base64_Img {

    public static void main(String[] args) {
        //str = GetImageStr();
        String s="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";
        GenerateImage(s);
    }

    // 图片转化成base64字符串
//    public static String GetImageStr() {
//        String imgFile = "D:\\tanbing.jpg";// 待处理的图片
//        InputStream in = null;
//        byte[] data = null;
//        // 读取图片字节数组
//        try {
//            in = new FileInputStream(imgFile);
//            data = new byte[in.available()];
//            in.read(data);
//            in.close();
//        } catch (IOException e) {
//            e.printStackTrace();
//        }
//        // 对字节数组Base64编码
//        BASE64Encoder encoder = new BASE64Encoder();
//        System.out.println(encoder.encode(data));
//        return encoder.encode(data);// 返回Base64编码过的字节数组字符串
//    }

    // 对字节数组字符串进行Base64解码并生成图片
    public static boolean GenerateImage(String imgStr) {
        if (imgStr == null) {
            // 图像数据为空
            return false;
        }
        BASE64Decoder decoder = new BASE64Decoder();
        try {
            // Base64解码
            byte[] b = decoder.decodeBuffer(imgStr);
            for (int i = 0; i < b.length; ++i) {
                if (b[i] < 0) {// 调整异常数据
                    b[i] += 256;
                }
            }
            // 生成jpeg图片
            String imgFilePath = "D:\\Download\\jieping.jpg";// 新生成的图片
            OutputStream out = new FileOutputStream(imgFilePath);
            out.write(b);
            out.flush();
            out.close();
            return true;
        } catch (Exception e) {
            return false;
        }
    }
}