Java加密

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import org.apache.commons.codec.binary.Hex; import org.apache.commons.codec.digest.DigestUtils;   import javax.crypto.Cipher; import javax.crypto.KeyGenerator; import javax.crypto.spec.SecretKeySpec; import java.io.UnsupportedEncodingException; import java.security.MessageDigest; import java.util.Base64;   /**  * @author binfirechen  * @version 1.0  * @date 2022/8/10 10:44  */ public class EncryptTest {       private static final String ALGORITHMSTR = "AES/ECB/PKCS5Padding";       private String AESEncrypt(String source,String encrypKey) throws Exception{         byte[] sourceByptes=source.getBytes("utf-8");         Cipher cipher = Cipher.getInstance(ALGORITHMSTR);         cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(encrypKey.getBytes(), "AES"));         byte[] bytes = cipher.doFinal(sourceByptes);         return Base64.getEncoder().encodeToString(bytes);     }       private String AESDecrypt(String source,String deencrypKey) throws Exception{         byte[] bytes = decryptByBytes(Base64.getDecoder().decode(source), deencrypKey);         return new String(bytes,"utf-8");     }       private byte[] decryptByBytes(byte[] encryptBytes, String deencrypKey) throws Exception {         KeyGenerator keyGenerator = KeyGenerator.getInstance("AES");         keyGenerator.init(128);         Cipher cipher = Cipher.getInstance(ALGORITHMSTR);         cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(deencrypKey.getBytes(), "AES"));         byte[] decryptBytes = cipher.doFinal(encryptBytes);         return decryptBytes;     }       public static String getSHA256Str(String str) throws Exception {         MessageDigest messageDigest = MessageDigest.getInstance("SHA-256");         byte[] hash = messageDigest.digest(str.getBytes("UTF-8"));         return Hex.encodeHexString(hash);     }       public static String encrypt(String content) throws UnsupportedEncodingException {         String value =  DigestUtils.md5Hex(content.getBytes("UTF-8"));         return value.toUpperCase();       } }