1.在utils中封装js方法,代码如下:
var Base64 = {
// private property
_keyStr: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=", //密钥(不能修改)
// public method for encoding
encode: function(input) {
var output = "";
var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
var i = 0;
input = Base64._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 + this._keyStr.charAt(enc1) + this._keyStr.charAt(enc2) + this._keyStr.charAt(enc3) + this._keyStr.charAt(enc4);
}
return output;
},
// public method for decoding
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 = this._keyStr.indexOf(input.charAt(i++));
enc2 = this._keyStr.indexOf(input.charAt(i++));
enc3 = this._keyStr.indexOf(input.charAt(i++));
enc4 = this._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 = Base64._utf8_decode(output);
return output;
},
// private method for UTF-8 encoding
_utf8_encode: function(string) {
string = string.replace(/ /g, " ");
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,c3 = 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;
}
}
export default Base64
2.在main.js中引入并挂载到vue原型对象上
//Base64加密
import Base64 from '@/utils/base64.js'
Vue.prototype.$Base64 = Base64
3.在vue文件中使用
this.$Base64.encode(str) //加密
this.$Base64.decode(str) //解密
拓展:编码解码的其他方式
1.md5
常用于加密,可以暴力反向破解但是难度很大,一般来说,对md5加密的要求是现代算力最高的计算机需要花百年才能进行解密
2.window对象自带的编码解码
window.btoa(str) //对str进行编码
- binary to ascii,用于将
ascii字符串
或二进制数据
转换成一个base64编码过的字符串
表示,即Base64的编码过程
,常用于编码字符串
。btoa不能编辑Unicode字符
window.atob(str) //对str进行解码
- ascii to binary,用于
解码一个已经被base-64编码过的数据
,即解码Base64编码的字符串
。
3.Unicode字符编码
encodeURI(str) //将URL地址编码转变成ASCII字符序列
decodeURI(str) //将ASCII字符序列解码转变成UTL地址
encodeURIComponent(str) //将中文字符编码转变成ASCII字符序列
decodeURIComponent(str) //将ASCII字符序列解码转变成中文字符
4.使用JS函数的escape()和unescape()
var escape1 =escape("我的名字是:");//编码
console.log(escape1);
var unescape1 = unescape(escape1); //解码
console.log(unescape1);