介绍
怎么在AngularJS中实现一个base64编码与解码功能?相信很多没有经验的人对此束手无策,为此本文总结了问题出现的原因和解决方法,通过这篇文章希望你能解决这个问题。
具体如下:
& lt; ! DOCTYPE HTML>
& lt; html>
& lt; head>
,& lt; meta charset=皍tf-8"比;
,& lt; title> base64加密& lt;/title>
,& lt; https://www.yisu.com/zixun/script src=" http://apps.bdimg.com/libs/angular.js/1.4.6/angular.min.js ">
<脚本>
函数Base64 () {//私有财产
_keyStr=" ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789 +/=";//公共编码方法
这一点。编码=function(输入){
var输出=" ";
var chr1、chr2 chr3、enc1 enc2, enc3, enc4;
var=0;
输入=_utf8_encode(输入);
虽然(我 2;
enc2=((chr1 & 3) <4) | (chr2> 4);
enc3=((chr2 & 15) <2) | (chr3> 6);
enc4=chr3 & 63;
如果(isNaN (chr2)) {
enc3=enc4=64;
}else if (isNaN (chr3)) {
enc4=64;
}
输出=输出+
_keyStr.charAt (enc1) + _keyStr.charAt (enc2) +
_keyStr.charAt (enc3) + _keyStr.charAt (enc4);
}
返回输出;
}//解码的公共方法
this.decode=function(输入){
var输出=" ";
var chr1, chr2 chr3;
var enc1、enc2 enc3 enc4;
var=0;
输入=Ｌ婊?/[^ A-Za-z0-9/+/=]/g, " ");
虽然(我 4);
chr2=((enc2 & 15) <4) | (enc3> 2);
chr3=((enc3 & 3) <6) | enc4;
输出=输出+ String.fromCharCode (chr1);
如果(enc3 !=64) {
输出=输出+ String.fromCharCode (chr2);
}
如果(enc4 !=64) {
输出=输出+ String.fromCharCode (chr3);
}
}=_utf8_decode输出(输出);
返回输出;
}//私有方法为utf - 8编码
_utf8_encode=function(字符串){
琴弦=Ｌ婊?g/r/n/,/n);
var utftext=" ";
(var n=0;n 127) & & (c <2048)) {
utftext +=String.fromCharCode (c> 6) | (192);
utftext +=String.fromCharCode ((c & 63) | 128);
其他}{
utftext +=String.fromCharCode (c> 12) | (224);
utftext +=String.fromCharCode (((c> 6) & 63) | 128);
utftext +=String.fromCharCode ((c & 63) | 128);
}
}
返回utftext;
}//私有方法为utf - 8解码
_utf8_decode=函数(utftext) {
字符串var=" ";
var=0;
c1=c2 var c==0;
虽然(我 191) & & (c <224)) {
c2=utftext。charCodeAt (i + 1);
字符串+=String.fromCharCode (((c & 31) <6) | (c2 & 63));
我+=2;
其他}{
c2=utftext。charCodeAt (i + 1);
c3=utftext。charCodeAt (+ 2);
字符串+=String.fromCharCode (((c & 15) <12) | ((c2 & 63) <6) | (c3 & 63));
我+=3;
}
}
返回字符串;
}
}>
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