Base64加密解密

一、Base64加密解密

一、前端加密

一、方法 一

const that = this;const copyruleForm = JSON.parse(JSON.stringify(that.ruleForm));const c_clus_content = window.btoa(unescape(encodeURIComponent(this.ruleForm.c_clus_content)));const c_clus_econtent = window.btoa(unescape(encodeURIComponent(this.ruleForm.c_clus_econtent)))注：unescape()方法已经被弃用，不建议使用

二、方法 二

注：深拷贝处理

const that = this;# 深拷贝const copyruleForm = JSON.parse(JSON.stringify(that.ruleForm));const c_clus_content = btoa(encodeURI(that.ruleForm.c_clus_content));const c_clus_econtent = btoa(encodeURI(that.ruleForm.c_clus_econtent));

二、后端解密

一、方法 一

public ProdCompDuty update(ProdCompDutyDTO prodCompDutyDTO) {ProdCompDuty field = prodCompDutyDTO.getField();//Base64解密 责任中文内容和责任英文内容if (StringUtil.isNotBlank(prodCompDutyDTO.getIsBase64()) && "true".equals(prodCompDutyDTO.getIsBase64())) {byte[] bytes1 = Base64.getDecoder().decode(field.getC_clus_content());String c_clus_content = new String(bytes1);field.setC_clus_content(c_clus_content);byte[] bytes2 = Base64.getDecoder().decode(field.getC_clus_econtent());String c_clus_econtent = new String(bytes2);field.setC_clus_econtent(c_clus_econtent);}ProdCompDutyDao.updateOne_odb_duty_no(field);return field;}

二、方法 二

public ProdCompDuty update(ProdCompDutyDTO prodCompDutyDTO) { ProdCompDuty field = prodCompDutyDTO.getField();//Base64解密 责任中文内容和责任英文内容if (StringUtil.isNotBlank(prodCompDutyDTO.getIsBase64()) && "true".equals(prodCompDutyDTO.getIsBase64())) {try {String c_clus_content = URLDecoder.decode(new String(Base64.getDecoder().decode(field.getC_clus_content()), "utf-8"), "utf-8");String c_clus_econtent = URLDecoder.decode(new String(Base64.getDecoder().decode(field.getC_clus_econtent()), "utf-8"), "utf-8");field.setC_clus_content(c_clus_content);field.setC_clus_econtent(c_clus_econtent);} catch (UnsupportedEncodingException e) {e.printStackTrace();}}ProdCompDutyDao.updateOne_odb_duty_no(field);return field;}

三、前端加密解密

一、window浏览器环境

1、window.btoa() 将ascii字符串或二进制数据转换成 base64 编码过的字符串

2、window.atob() 函数用来解码被 base64 编码过的数据

# 方法名就是 btoa和 atob ，具体语法如下：window.btoa('hellow World')// 编码 aGVsbG93IFdvcmxkwindow.atob('aGVsbG93IFdvcmxk')// 解码 hellow World

注意：不适用于带中文解密，即window.btoa 与 window.atob 不支持中文，且 IE9 以下不支持atob、btoa

解决：btoa 不支持 Unicode 字符编码的问题编码时，先用 encodeURIComponent 对字符串进行编码，再进行 btoa 进行 Base64 编码解码时，先用 atob 对 Base64 编码的串进行解码，再用 decodeURIComponent 对字符串进行解码

var str = "hello,中国";var encoded_str = btoa(encodeURIComponent(str));var decoded_str = decodeURIComponent(atob(encoded_str));console.log(encoded_str); // aGVsbG8lMkMlRTQlQjglQUQlRTUlOUIlQkQ=console.log(decoded_str); // hello,中国在这里插入代码片

二、封装base64

/* *base64.js */;(function (global, factory) {typeof exports === 'object' && typeof module !== 'undefined'? module.exports = factory(global): typeof define === 'function' && define.amd? define(factory) : factory(global)}((typeof self !== 'undefined' ? self: typeof window !== 'undefined' ? window: typeof global !== 'undefined' ? global: this), function(global) {'use strict';// existing version for noConflict()global = global || {};var _Base64 = global.Base64;var version = "2.5.2";// if node.js and NOT React Native, we use Buffervar buffer;if (typeof module !== 'undefined' && module.exports) {try {buffer = eval("require('buffer').Buffer");} catch (err) {buffer = undefined;}}// constantsvar b64chars= 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';var b64tab = function(bin) {var t = {};for (var i = 0, l = bin.length; i < l; i++) t[bin.charAt(i)] = i;return t;}(b64chars);var fromCharCode = String.fromCharCode;// encoder stuffvar cb_utob = function(c) {if (c.length < 2) {var cc = c.charCodeAt(0);return cc < 0x80 ? c: cc < 0x800 ? (fromCharCode(0xc0 | (cc >>> 6))+ fromCharCode(0x80 | (cc & 0x3f))): (fromCharCode(0xe0 | ((cc >>> 12) & 0x0f))+ fromCharCode(0x80 | ((cc >>>6) & 0x3f))+ fromCharCode(0x80 | ( cc & 0x3f)));} else {var cc = 0x10000+ (c.charCodeAt(0) - 0xD800) * 0x400+ (c.charCodeAt(1) - 0xDC00);return (fromCharCode(0xf0 | ((cc >>> 18) & 0x07))+ fromCharCode(0x80 | ((cc >>> 12) & 0x3f))+ fromCharCode(0x80 | ((cc >>>6) & 0x3f))+ fromCharCode(0x80 | ( cc & 0x3f)));}};var re_utob = /[\uD800-\uDBFF][\uDC00-\uDFFFF]|[^\x00-\x7F]/g;var utob = function(u) {return u.replace(re_utob, cb_utob);};var cb_encode = function(ccc) {var padlen = [0, 2, 1][ccc.length % 3],ord = ccc.charCodeAt(0) << 16| ((ccc.length > 1 ? ccc.charCodeAt(1) : 0) << 8)| ((ccc.length > 2 ? ccc.charCodeAt(2) : 0)),chars = [b64chars.charAt( ord >>> 18),b64chars.charAt((ord >>> 12) & 63),padlen >= 2 ? '=' : b64chars.charAt((ord >>> 6) & 63),padlen >= 1 ? '=' : b64chars.charAt(ord & 63)];return chars.join('');};var btoa = global.btoa ? function(b) {return global.btoa(b);} : function(b) {return b.replace(/[\s\S]{1,3}/g, cb_encode);};var _encode = function(u) {var isUint8Array = Object.prototype.toString.call(u) === '[object Uint8Array]';return isUint8Array ? u.toString('base64'): btoa(utob(String(u)));}var encode = function(u, urisafe) {return !urisafe? _encode(u): _encode(String(u)).replace(/[+\/]/g, function(m0) {return m0 == '+' ? '-' : '_';}).replace(/=/g, '');};var encodeURI = function(u) { return encode(u, true) };// decoder stuffvar re_btou = /[\xC0-\xDF][\x80-\xBF]|[\xE0-\xEF][\x80-\xBF]{2}|[\xF0-\xF7][\x80-\xBF]{3}/g;var cb_btou = function(cccc) {switch(cccc.length) {case 4:var cp = ((0x07 & cccc.charCodeAt(0)) << 18)|((0x3f & cccc.charCodeAt(1)) << 12)|((0x3f & cccc.charCodeAt(2)) <<6)| (0x3f & cccc.charCodeAt(3)),offset = cp - 0x10000;return (fromCharCode((offset>>> 10) + 0xD800)+ fromCharCode((offset & 0x3FF) + 0xDC00));case 3:return fromCharCode(((0x0f & cccc.charCodeAt(0)) << 12)| ((0x3f & cccc.charCodeAt(1)) << 6)|(0x3f & cccc.charCodeAt(2)));default:returnfromCharCode(((0x1f & cccc.charCodeAt(0)) << 6)|(0x3f & cccc.charCodeAt(1)));}};var btou = function(b) {return b.replace(re_btou, cb_btou);};var cb_decode = function(cccc) {var len = cccc.length,padlen = len % 4,n = (len > 0 ? b64tab[cccc.charAt(0)] << 18 : 0)| (len > 1 ? b64tab[cccc.charAt(1)] << 12 : 0)| (len > 2 ? b64tab[cccc.charAt(2)] <<6 : 0)| (len > 3 ? b64tab[cccc.charAt(3)] : 0),chars = [fromCharCode( n >>> 16),fromCharCode((n >>>8) & 0xff),fromCharCode( n & 0xff)];chars.length -= [0, 0, 2, 1][padlen];return chars.join('');};var _atob = global.atob ? function(a) {return global.atob(a);} : function(a){return a.replace(/\S{1,4}/g, cb_decode);};var atob = function(a) {return _atob(String(a).replace(/[^A-Za-z0-9\+\/]/g, ''));};var _decode = buffer ?buffer.from && Uint8Array && buffer.from !== Uint8Array.from? function(a) {return (a.constructor === buffer.constructor? a : buffer.from(a, 'base64')).toString();}: function(a) {return (a.constructor === buffer.constructor? a : new buffer(a, 'base64')).toString();}: function(a) { return btou(_atob(a)) };var decode = function(a){return _decode(String(a).replace(/[-_]/g, function(m0) { return m0 == '-' ? '+' : '/' }).replace(/[^A-Za-z0-9\+\/]/g, ''));};var noConflict = function() {var Base64 = global.Base64;global.Base64 = _Base64;return Base64;};// export Base64global.Base64 = {VERSION: version,atob: atob,btoa: btoa,fromBase64: decode,toBase64: encode,utob: utob,encode: encode,encodeURI: encodeURI,btou: btou,decode: decode,noConflict: noConflict,__buffer__: buffer};// if ES5 is available, make Base64.extendString() availableif (typeof Object.defineProperty === 'function') {var noEnum = function(v){return {value:v,enumerable:false,writable:true,configurable:true};};global.Base64.extendString = function () {Object.defineProperty(String.prototype, 'fromBase64', noEnum(function () {return decode(this)}));Object.defineProperty(String.prototype, 'toBase64', noEnum(function (urisafe) {return encode(this, urisafe)}));Object.defineProperty(String.prototype, 'toBase64URI', noEnum(function () {return encode(this, true)}));};}//// export Base64 to the namespace//if (global['Meteor']) { // Meteor.jsBase64 = global.Base64;}// module.exports and AMD are mutually exclusive.// module.exports has precedence.if (typeof module !== 'undefined' && module.exports) {module.exports.Base64 = global.Base64;}else if (typeof define === 'function' && define.amd) {// AMD. Register as an anonymous module.define([], function(){ return global.Base64 });}// that's it!return {Base64: global.Base64}}));

方法使用

1、引用import {Base64} from './utils/base64'2、使用Base64.encode('hellow world'); // 编码aGVsbG93IFdvcmxkBase64.decode('aGVsbG93IFdvcmxk'); // 解码hellow World

三、开源的base64.js

1、下载依赖$ npm install --save js-base642、使用方法：import {Base64} from 'js-base64'Base64.encode('hellow world'); // 编码aGVsbG93IFdvcmxkBase64.decode('aGVsbG93IFdvcmxk'); // 解码hellow World

四、后端Base64工具类

一、base64加密解密（apache）

import org.apache.commons.net.util.Base64;import java.io.UnsupportedEncodingException;@SuppressWarnings("restriction")public class BaseEncodeAndDecode {//加密public static String getBase64(String str){byte[] b=null;String s=null;try {b = str.getBytes("utf-8");} catch (UnsupportedEncodingException e) {e.printStackTrace();}if(b!=null){s=Base64.encodeBase64String(b);}return s;}// 解密public static String getFromBase64(String s) {byte[] b = null;String result = null;if (s != null) {try {b = Base64.decodeBase64(s);result = new String(b, "utf-8");} catch (Exception e) {e.printStackTrace();}}return result;} } 

二、base64加密解密（util）

import java.util.Base64;public class BaseEncodeAndDecode {//加密private static String BaseEncodeAndDecode(String str) {//String encodedString = Base64.getEncoder().encodeToString(str.getBytes());String encodedString = Base64.getEncoder().withoutPadding().encodeToString(str.getBytes());return encodedString;}//解密private static String getFromBase64(String str) {byte[] decodedBytes = Base64.getDecoder().decode(str);String decodedString = new String(decodedBytes);return decodedString;}}