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@@ -0,0 +1,102 @@
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+package com.project.common.utils;
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+
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+import lombok.SneakyThrows;
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+import lombok.extern.slf4j.Slf4j;
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+
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+import javax.crypto.BadPaddingException;
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+import javax.crypto.Cipher;
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+import javax.crypto.IllegalBlockSizeException;
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+import javax.crypto.NoSuchPaddingException;
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+import javax.crypto.spec.IvParameterSpec;
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+import javax.crypto.spec.SecretKeySpec;
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+import java.security.InvalidAlgorithmParameterException;
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+import java.security.InvalidKeyException;
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+import java.security.NoSuchAlgorithmException;
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+import java.util.Base64;
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+
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+@Slf4j
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+public class AESUtil {
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+
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+ /***
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+ * key和iv值可以随机生成
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+ */
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+ private static String KEY = "X4RjV51wQxSxZHHQ";
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+ private static String IV = "g49GarVwCTR6nBHQ";
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+
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+ /***
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+ * 加密
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+ * @param data 要加密的数据
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+ * @return encrypt
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+ */
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+ public static String encrypt(String data) {
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+ return encrypt(data, KEY, IV);
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+ }
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+
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+ /***
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+ * param data 需要解密的数据
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+ * 调用desEncrypt()方法
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+ */
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+ public static String decrypt(String data) {
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+ return decrypt(data, KEY, IV);
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+ }
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+
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+ /**
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+ * 加密方法
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+ * @param data 要加密的数据
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+ * @param key 加密key
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+ * @param iv 加密iv
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+ * @return 加密的结果
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+
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+ */
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+ @SneakyThrows
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+ private static String encrypt(String data, String key, String iv) {
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+ Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");
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+ int blockSize = cipher.getBlockSize();
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+
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+ byte[] dataBytes = data.getBytes();
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+ int plaintextLength = dataBytes.length;
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+ if (plaintextLength % blockSize != 0) {
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+ plaintextLength = plaintextLength + (blockSize - (plaintextLength % blockSize));
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+ }
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+
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+ byte[] plaintext = new byte[plaintextLength];
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+ System.arraycopy(dataBytes, 0, plaintext, 0, dataBytes.length);
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+
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+ SecretKeySpec keyspec = new SecretKeySpec(key.getBytes(), "AES");
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+ IvParameterSpec ivspec = new IvParameterSpec(iv.getBytes());
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+
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+ cipher.init(Cipher.ENCRYPT_MODE, keyspec, ivspec);
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+ byte[] encrypted = cipher.doFinal(plaintext);
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+
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+ return Base64.getEncoder().encodeToString(encrypted);
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+ }
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+
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+ /**
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+ * 解密方法
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+ * @param data 要解密的数据
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+ * @param key 解密key
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+ * @param iv 解密iv
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+ * @return 解密的结果
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+ * @throws NoSuchPaddingException
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+ * @throws NoSuchAlgorithmException
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+ * @throws InvalidAlgorithmParameterException
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+ * @throws InvalidKeyException
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+ * @throws BadPaddingException
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+ * @throws IllegalBlockSizeException
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+ */
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+ public static String decrypt(String data, String key, String iv) {
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+ byte[] encrypted1 = Base64.getDecoder().decode(data);
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+ try {
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+ Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");
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+ SecretKeySpec keySpec = new SecretKeySpec(key.getBytes(), "AES");
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+ IvParameterSpec ivSpec = new IvParameterSpec(iv.getBytes());
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+ cipher.init(Cipher.DECRYPT_MODE, keySpec, ivSpec);
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+ byte[] original = cipher.doFinal(encrypted1);
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+ return new String(original).trim();
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+ } catch (Exception e) {
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+ log.error("decrypt exception", e);
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+ }
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+ return "";
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+ }
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+
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+}
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