import jodd.util.PropertiesUtil;
import org.apache.hadoop.security.UserGroupInformation;
import java.io.IOException;
import java.io.InputStream;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Properties;
/**
* hive工具類
*/
public class hiveUtil {
private static Properties props=null;
static {
props=new Properties();
InputStream in = PropertiesUtil.class.getClassLoader().getResourceAsStream("cdhConfig.properties");
try {
props.load(in);
} catch (IOException e) {
e.printStackTrace();
}
}
// private static String hiveJDBCurl = "jdbc:hive2://**:10000/;principal=hive/**@DWSP.COM";// hive庫地址+庫名
// 認證kerberos
private static void authKrb5() throws IOException {
// 設置jvm啓動時krb5的讀取路徑參數
System.setProperty("java.security.krb5.conf", (String) props.get("java.security.krb5.conf"));
// 配置kerberos認證
org.apache.hadoop.conf.Configuration conf = new org.apache.hadoop.conf.Configuration();
// conf.setBoolean("hadoop.security.authorization", true);
conf.set("hadoop.security.authentication", (String) props.get("hadoop.security.authentication"));
//配置將要登陸kerberos的用戶,和其對應的keytab的所在路徑
UserGroupInformation.setConfiguration(conf);
try {
UserGroupInformation.loginUserFromKeytab(
(String) props.get("kerberos.principal"),
(String) props.get("kerberos.keytab"));
} catch (IOException e) {
e.printStackTrace();
}
}
public static Connection getConn() throws ClassNotFoundException,
SQLException, IOException {
//認證kerberos
authKrb5();
Class.forName("org.apache.hive.jdbc.HiveDriver");
Connection conn = DriverManager.getConnection((String) props.get("hive.JDBC.url"));
return conn;
}
}
Java通過Kerberos認證連接hiveServer2
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