本文主要是介绍AES对称加密以及java同js互相加解密，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
1、JAVA后端代码
import lombok.extern.slf4j.Slf4j;import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import java.nio.charset.StandardCharsets;
import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.security.spec.AlgorithmParameterSpec;
import java.util.Base64;/*** AesUtil** @date 2019/8/14* @description AES加密工具类*/
@Slf4j
public class AesUtil {private static AesUtil instance = null;private Cipher cipher;SecretKeySpec key = null;AlgorithmParameterSpec iv = null;public static AesUtil getInstance() {String key = "539777c69fd1d0db113a1256866d69aa";String iv = "6bb9d4211b236bea79ba84c16107f333";return getInstance(key, iv);}public static AesUtil getInstance(String key, String iv) {if (instance == null) {instance = new AesUtil(key, iv);}return instance;}/*** 构造器** @param keyStr* @param ivStr*/private AesUtil(String keyStr, String ivStr) {try {iv = new IvParameterSpec(packHex(ivStr));key = new SecretKeySpec(packHex(keyStr), "AES");// 加解密功能由Cipher组件提供// 获取Cipher实例AES-128位-有向量 加密模式为CBC，填充模式为PKCS5Paddingcipher = Cipher.getInstance("AES/CBC/PKCS5Padding");} catch (NoSuchAlgorithmException e) {log.error("AesUtil Constructor NoSuchAlgorithmException", e);} catch (NoSuchPaddingException e) {log.error("AesUtil Constructor NoSuchPaddingException", e);}}/*** 将32bytes的16禁止串压缩成16bytes，充分利用128bits的密钥空间** @param hex* @return byte[]*/public static byte[] packHex(String hex) {int len = hex.length() >> 1;byte[] b = new byte[len];short k = 0;for (int i = 0, j = 0; i < len; i++, j = i << 1) {k = Short.parseShort(hex.substring(j, j + 2), 16);b[i] = (byte) (k & 0xff);}return b;}/*** 加密** @param txt 待加密文本字节数组* @return*/public byte[] encrypt(byte[] txt) {try {cipher.init(Cipher.ENCRYPT_MODE, key, iv);return cipher.doFinal(txt);} catch (IllegalBlockSizeException | BadPaddingException | InvalidKeyException | InvalidAlgorithmParameterException e) {log.error("encrypt" + "_" + e.getMessage(), e);}return new byte[0];}/*** 加密** @param txt 待加密文本字符串* @return*/public String encrypt(String txt) {byte[] b = this.encrypt(txt.getBytes(StandardCharsets.UTF_8));return Base64.getEncoder().encodeToString(b);}/*** 加密(去除特殊字符'+','/','=')* @param txt 加密字符* @return*/public String encryptNoSpecialSymbol(String txt) {byte[] b = this.encrypt(txt.getBytes(StandardCharsets.UTF_8));return Base64.getUrlEncoder().withoutPadding().encodeToString(b);}/*** 解密(去除特殊字符'+','/','=')* @param txt* @return*/public String decryptNoSpecialSymbol(String txt) {byte[] b = txt.getBytes();b = Base64.getUrlDecoder().decode(b);b = decrypt(b);return new String(b, StandardCharsets.UTF_8);}/*** 解密** @param txt 待解密文本字节数组* @return*/public byte[] decrypt(byte[] txt) {try {cipher.init(Cipher.DECRYPT_MODE, key, iv);return cipher.doFinal(txt);} catch (IllegalBlockSizeException | BadPaddingException | InvalidKeyException | InvalidAlgorithmParameterException e) {log.error("decrypt" + "_" + e.getMessage(), e);}return new byte[0];}/*** 解密** @param txt* @return*/public String decrypt(String txt) {byte[] b = txt.getBytes();b = Base64.getDecoder().decode(b);b = decrypt(b);return new String(b, StandardCharsets.UTF_8);}public static void main(String[] args) {AesUtil aesUtil = AesUtil.getInstance();String encryptString = aesUtil.encrypt("530302201210302749");log.info("encryptString:{},size:{}", encryptString, encryptString.length());String decryptString = aesUtil.decrypt(encryptString);log.info("decryptString:{}", decryptString);}
}
2、前端JS代码，引入CryptoJS-3.1.2包components中的aes-min.js
//加密var key = CryptoJS.enc.Hex.parse("539777c69fd1d0db113a1256866d69aa");var iv = CryptoJS.enc.Hex.parse("6bb9d4211b236bea79ba84c16107f333");var srcs = CryptoJS.enc.Utf8.parse("hello world 137 牛");var enc = CryptoJS.AES.encrypt(srcs, key, {mode:CryptoJS.mode.CBC,padding: CryptoJS.pad.Pkcs7,iv: iv});let value = enc.toString();console.log("encrypt aes:"+value);//解密var key = CryptoJS.enc.Hex.parse("539777c69fd1d0db113a1256866d69aa");var iv = CryptoJS.enc.Hex.parse("6bb9d4211b236bea79ba84c16107f333");var dec = CryptoJS.enc.Base64.stringify(CryptoJS.enc.Base64.parse(value));var decrypt = CryptoJS.AES.decrypt(dec,key,{mode:CryptoJS.mode.CBC,padding: CryptoJS.pad.Pkcs7,iv: iv});var word = decrypt.toString(CryptoJS.enc.Utf8)console.log("decrypt aes:"+word);
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