SpringBoot + Vue 实现 AES 加密和 AES 工具类总结

import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import java.util.Base64;
 
public class AESUtil {
 
    // AES加密
    public static String encryptAES(String content, String key) throws Exception {
        Cipher cipher = Cipher.getInstance("AES");
        byte[] keyBytes = new byte[16];
        System.arraycopy(key.getBytes(), 0, keyBytes, 0, key.getBytes().length);
        SecretKeySpec secretKeySpec = new SecretKeySpec(keyBytes, "AES");
        cipher.init(Cipher.ENCRYPT_MODE, secretKeySpec);
        byte[] encrypted = cipher.doFinal(content.getBytes());
        return Base64.getEncoder().encodeToString(encrypted);
    }
 
    // AES解密
    public static String decryptAES(String encryptedContent, String key) throws Exception {
        Cipher cipher = Cipher.getInstance("AES");
        byte[] keyBytes = new byte[16];
        System.arraycopy(key.getBytes(), 0, keyBytes, 0, key.getBytes().length);
        SecretKeySpec secretKeySpec = new SecretKeySpec(keyBytes, "AES");
        cipher.init(Cipher.DECRYPT_MODE, secretKeySpec);
        byte[] decrypted = cipher.doFinal(Base64.getDecoder().decode(encryptedContent));
        return new String(decrypted);
    }
}

这个简单的AES工具类提供了加密和解密的方法，使用时只需要传入需要加密或解密的内容和密钥即可。注意，密钥长度必须是16个字节。在实际应用中，密钥应当采用安全的方式管理和传输。