- Java代码
import org.apache.hadoop.hive.ql.exec.Description;
import org.apache.hadoop.hive.ql.exec.UDF;
import org.apache.hadoop.io.Text;
import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import java.nio.charset.StandardCharsets;
import java.util.Base64;
@Description(name = “decrypt”, value = “Decrypts an encrypted string using AES decryption.”)
public class JieMi extends UDF {
private static final String ALGORITHM = “AES”;
private static final String KEY = “MySecretKey12345”; // 修改为您自己的密钥
public Text evaluate(Text input) {
if (input == null) {
return null;
}
try {
Cipher cipher = Cipher.getInstance(ALGORITHM);
SecretKeySpec secretKey = new SecretKeySpec(KEY.getBytes(StandardCharsets.UTF_8), ALGORITHM);
cipher.init(Cipher.DECRYPT_MODE, secretKey);
byte[] decryptedBytes = cipher.doFinal(Base64.getDecoder().decode(input.toString()));
String decryptedString = new String(decryptedBytes, StandardCharsets.UTF_8);
return new Text(decryptedString);
} catch (Exception e) {
// 处理解密异常，例如记录日志或抛出自定义异常
return null;
}
}
} - pom.xml
作者 admin
张宴银，大数据开发工程师