欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  web前端

怎样使用AngularJS实现base64编码与解码

程序员文章站 2022-03-25 10:04:52
...
这次给大家带来怎样使用AngularJS实现base64编码与解码,使用AngularJS实现base64编码与解码的注意事项有哪些,下面就是实战案例,一起来看一下。
<!DOCTYPE HTML>
<html>
<head>
 <meta charset="utf-8">
 <title>base64加密</title>
 <script src="http://apps.bdimg.com/libs/angular.js/1.4.6/angular.min.js"></script>
 <script>
  function Base64() {
   // private property
   _keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
   // public method for encoding
   this.encode = function (input) {
    var output = "";
    var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
    var i = 0;
    input = _utf8_encode(input);
    while (i < input.length) {
     chr1 = input.charCodeAt(i++);
     chr2 = input.charCodeAt(i++);
     chr3 = input.charCodeAt(i++);
     enc1 = chr1 >> 2;
     enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
     enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
     enc4 = chr3 & 63;
     if (isNaN(chr2)) {
      enc3 = enc4 = 64;
     } else if (isNaN(chr3)) {
      enc4 = 64;
     }
     output = output +
       _keyStr.charAt(enc1) + _keyStr.charAt(enc2) +
       _keyStr.charAt(enc3) + _keyStr.charAt(enc4);
    }
    return output;
   }
   // public method for decoding
   this.decode = function (input) {
    var output = "";
    var chr1, chr2, chr3;
    var enc1, enc2, enc3, enc4;
    var i = 0;
    input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
    while (i < input.length) {
     enc1 = _keyStr.indexOf(input.charAt(i++));
     enc2 = _keyStr.indexOf(input.charAt(i++));
     enc3 = _keyStr.indexOf(input.charAt(i++));
     enc4 = _keyStr.indexOf(input.charAt(i++));
     chr1 = (enc1 << 2) | (enc2 >> 4);
     chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
     chr3 = ((enc3 & 3) << 6) | enc4;
     output = output + String.fromCharCode(chr1);
     if (enc3 != 64) {
      output = output + String.fromCharCode(chr2);
     }
     if (enc4 != 64) {
      output = output + String.fromCharCode(chr3);
     }
    }
    output = _utf8_decode(output);
    return output;
   }
   // private method for UTF-8 encoding
   _utf8_encode = function (string) {
    string = string.replace(/\r\n/g, "\n");
    var utftext = "";
    for (var n = 0; n < string.length; n++) {
     var c = string.charCodeAt(n);
     if (c < 128) {
      utftext += String.fromCharCode(c);
     } else if ((c > 127) && (c < 2048)) {
      utftext += String.fromCharCode((c >> 6) | 192);
      utftext += String.fromCharCode((c & 63) | 128);
     } else {
      utftext += String.fromCharCode((c >> 12) | 224);
      utftext += String.fromCharCode(((c >> 6) & 63) | 128);
      utftext += String.fromCharCode((c & 63) | 128);
     }
    }
    return utftext;
   }
   // private method for UTF-8 decoding
   _utf8_decode = function (utftext) {
    var string = "";
    var i = 0;
    var c = c1 = c2 = 0;
    while (i < utftext.length) {
     c = utftext.charCodeAt(i);
     if (c < 128) {
      string += String.fromCharCode(c);
      i++;
     } else if ((c > 191) && (c < 224)) {
      c2 = utftext.charCodeAt(i + 1);
      string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
      i += 2;
     } else {
      c2 = utftext.charCodeAt(i + 1);
      c3 = utftext.charCodeAt(i + 2);
      string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
      i += 3;
     }
    }
    return string;
   }
  }
 </script>
</head>
<body>
<p id="p1">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</p>
<script>
 var b = new Base64();
 str = document.getElementById("p1").innerHTML;
 //解密
 str = b.decode(str);
 document.getElementById("p1").innerHTML = str;
</script>
</body>
</html>

相信看了本文案例你已经掌握了方法,更多精彩请关注其它相关文章!

推荐阅读:

在不使用select的情况下vue怎么实现下拉框功能

webpack-dev-server配置与使用步奏详解

以上就是怎样使用AngularJS实现base64编码与解码的详细内容,更多请关注其它相关文章!