SpringBoot前后端数据传输加密

采用的算法为AES算法

1. 编写加密工具类

package com.pibigstar.utils;import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.spec.SecretKeySpec;
import org.apache.commons.codec.binary.Base64;/*** 前后端数据传输加密工具类* @author pibigstar**/
public class AesEncryptUtils {//可配置到Constant中，并读取配置文件注入private static final String KEY = "abcdef0123456789";//参数分别代表 算法名称/加密模式/数据填充方式private static final String ALGORITHMSTR = "AES/ECB/PKCS5Padding";/*** 加密* @param content 加密的字符串* @param encryptKey key值* @return* @throws Exception*/public static String encrypt(String content, String encryptKey) throws Exception {KeyGenerator kgen = KeyGenerator.getInstance("AES");kgen.init(128);Cipher cipher = Cipher.getInstance(ALGORITHMSTR);cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(encryptKey.getBytes(), "AES"));byte[] b = cipher.doFinal(content.getBytes("utf-8"));return Base64.encodeBase64String(b);}/*** 解密* @param encryptStr 解密的字符串* @param decryptKey 解密的key值* @return* @throws Exception*/public static String decrypt(String encryptStr, String decryptKey) throws Exception {KeyGenerator kgen = KeyGenerator.getInstance("AES");kgen.init(128);Cipher cipher = Cipher.getInstance(ALGORITHMSTR);cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(decryptKey.getBytes(), "AES"));byte[] encryptBytes = Base64.decodeBase64(encryptStr);byte[] decryptBytes = cipher.doFinal(encryptBytes);return new String(decryptBytes);}public static String encrypt(String content) throws Exception {return encrypt(content, KEY);}public static String decrypt(String encryptStr) throws Exception {return decrypt(encryptStr, KEY);}public static void main(String[] args) throws Exception {String content = "派大星";System.out.println("加密前：" + content);String encrypt = encrypt(content, KEY);System.out.println("加密后：" + encrypt);String decrypt = decrypt(encrypt, KEY);System.out.println("解密后：" + decrypt);}
}

2. 前端

js 文件下载：https://pan.baidu.com/s/11LnXUnsMtGW5C8sycf2SDQ

导入 js 文件

    <script type="text/javascript" src = "js/aes.js">script><script type="text/javascript" src = "js/pad-zeropadding.js">script><script type="text/javascript" src = "js/security.js">script>

发送数据

function sendData() {alert("发送的数据："+Encrypt(JSON.stringify({name:"派大星"})));$.ajax({type: "POST",url:"/save",data:Encrypt(JSON.stringify({name:"派大星"})),dataType:'json',contentType: "application/json",success: function(resData) {alert("返回的数据："+resData);alert("解密之后："+Decrypt(resData));alert("解密之后转json对象："+JSON.parse(Decrypt(resData)).name);}}); }

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