1、加密
public static void main(String[] args) { //String aa = GetImageStr1("D:/tttest/test.png"); //System.out.println(aa); //GenerateImage(aa); GenerateImage(path); } public static String GetImageStr1(String path) {//将图片文件转化为字节数组字符串,并对其进行Base64编码处理 byte[] data = null; try { //读取图片字节数组 InputStream in = new FileInputStream(path); //in = new FileInputStream(imgFile); data = new byte[in.available()]; in.read(data); in.close(); } catch (IOException e) { e.printStackTrace(); } return new String(Base64.encodeBase64(data)); }
2、解密
public static boolean GenerateImage(String imgStr) { //对字节数组字符串进行Base64解码并生成图片 if (imgStr == null) //图像数据为空 return false; //imgStr=imgStr.replace("data:image/png;base64,", ""); 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; } } //生成图片 String imgFilePath = "D:/tttest/copy.png";//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; } }