加解密部分代码

这部分和命令行实现方式无异。

AESDecoder.java

package com.xgcd;
import org.apache.commons.codec.binary.Base64;
import org.apache.commons.lang.StringUtils;
import sun.misc.BASE64Decoder;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.spec.SecretKeySpec;
import java.math.BigInteger;
import java.security.SecureRandom;
public class AESDecoder {
    //密钥 (需要前端和后端保持一致)
    public static final String KEY = "NARI@KD_123@Help";
    //算法
    private static final String ALGORITHMSTR = "AES/ECB/PKCS5Padding";
     * 随机生成指定长度的字符串
    public static String getRandomString(int length) { //length表示生成字符串的长度
        String base = "abcdef#ghi$jkl!mno&pqrstu%vwxyz0_@123456789";
        SecureRandom random = new SecureRandom();
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < length; i++) {
            int number = random.nextInt(base.length());
            sb.append(base.charAt(number));
        return sb.toString();
     * aes解密
     * @param encrypt 内容
     * @return
     * @throws Exception
    public static String aesDecrypt(String encrypt) throws Exception {
        return aesDecrypt(encrypt, KEY);
//        try {
//            return aesDecrypt(encrypt, KEY);
//        } catch (Exception e) {
//            e.printStackTrace();
//            return e.getMessage();
     * aes加密
     * @param content
     * @return
     * @throws Exception
    public static String aesEncrypt(String content) throws Exception {
        return aesEncrypt(content, KEY);
//        try {
//            return aesEncrypt(content, KEY);
//        } catch (Exception e) {
//            e.printStackTrace();
//            return e.getMessage();
     * 将byte[]转为各种进制的字符串
     * @param bytes byte[]
     * @param radix 可以转换进制的范围，从Character.MIN_RADIX到Character.MAX_RADIX，超出范围后变为10进制
     * @return 转换后的字符串
    public static String binary(byte[] bytes, int radix) {
        return new BigInteger(1, bytes).toString(radix);// 这里的1代表正数
     * base 64 encode
     * @param bytes 待编码的byte[]
     * @return 编码后的base 64 code
    public static String base64Encode(byte[] bytes) {
        return Base64.encodeBase64String(bytes);
     * base 64 decode
     * @param base64Code 待解码的base 64 code
     * @return 解码后的byte[]
     * @throws Exception
    public static byte[] base64Decode(String base64Code) throws Exception {
        return StringUtils.isEmpty(base64Code) ? null : new BASE64Decoder().decodeBuffer(base64Code);
     * AES加密
     * @param content    待加密的内容
     * @param encryptKey 加密密钥
     * @return 加密后的byte[]
     * @throws Exception
    public static byte[] aesEncryptToBytes(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"));
        return cipher.doFinal(content.getBytes("utf-8"));
     * AES加密为base 64 code
     * @param content    待加密的内容
     * @param encryptKey 加密密钥
     * @return 加密后的base 64 code
     * @throws Exception
    public static String aesEncrypt(String content, String encryptKey) throws Exception {
        return base64Encode(aesEncryptToBytes(content, encryptKey));
     * AES解密
     * @param encryptBytes 待解密的byte[]
     * @param decryptKey   解密密钥
     * @return 解密后的String
     * @throws Exception
    public static String aesDecryptByBytes(byte[] encryptBytes, 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[] decryptBytes = cipher.doFinal(encryptBytes);
        return new String(decryptBytes);
     * 将base 64 code AES解密
     * @param encryptStr 待解密的base 64 code
     * @param decryptKey 解密密钥
     * @return 解密后的string
     * @throws Exception
    public static String aesDecrypt(String encryptStr, String decryptKey) throws Exception {
        return StringUtils.isEmpty(encryptStr) ? null : aesDecryptByBytes(base64Decode(encryptStr), decryptKey);
    public static String decrypt(String encryptStr) {
        try {
            return aesDecrypt(encryptStr, KEY);
        } catch (Exception e) {
            return null;
    public static void main(String[] args) {
        String encryCont = "";
        try {
            System.out.println(encryCont = AESDecoder.aesEncrypt("Welcome@19"));
            System.out.println(AESDecoder.aesDecrypt(encryCont));
        } catch (Exception e) {
            e.printStackTrace();
将项目打成可执行jar包，不再赘述。
GitHub代码
https://github.com/xiguanchendian/Swing
http://c.biancheng.net/swing/
https://blog.csdn.net/yangymy/article/details/71172589?utm_source=blogxgwz3
https://blog.csdn.net/qq_42276808/article/details/91492254