如何使用Kerberos在hive UDF中获得HBase连接？

import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.client.Connection;
import org.apache.hadoop.hbase.client.ConnectionFactory;

public class HiveUDF {
  public static void main(String[] args) {
    try {
      // 创建Kerberos登录上下文
      UserGroupInformation.setConfiguration(new Configuration());
      UserGroupInformation.loginUserFromKeytab("username@REALM", "/path/to/keytab");

      // 创建HBase配置
      Configuration hbaseConfig = HBaseConfiguration.create();
      hbaseConfig.set("hbase.zookeeper.quorum", "zk1,zk2,zk3");
      hbaseConfig.set("hbase.zookeeper.property.clientPort", "2181");

      // 建立HBase连接
      Connection hbaseConnection = ConnectionFactory.createConnection(hbaseConfig);

      // 在这里进行HBase操作...

      // 关闭HBase连接
      hbaseConnection.close();
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
}