0b4b5cabc4
Gets rid of the nested try-with-resources blocks. Improves legibility slightly. ### Why are the changes needed? Make the example code just a bit nicer. ### How was this patch tested? It still compiles. I created a simple (maven) project using only these two java files. ### Was this patch authored or co-authored using generative AI tooling? No Closes #7160 from jagij/patch-1. Closes #7160 9d9624841 [Jan Willem] single try-with-resources blocks Authored-by: Jan Willem <jan.willem.ps@gmail.com> Signed-off-by: Cheng Pan <chengpan@apache.org>
3.2 KiB
3.2 KiB
Getting Started with Hive JDBC
How to get the Kyuubi JDBC driver
Kyuubi Thrift API is fully compatible with HiveServer2, so technically, it allows to use any Hive JDBC driver to connect Kyuubi Server. But it's recommended to use Kyuubi Hive JDBC driver, which is forked from Hive 3.1.x JDBC driver, aims to support some missing functionalities of the original Hive JDBC driver.
The driver is available from Maven Central:
<dependency>
<groupId>org.apache.kyuubi</groupId>
<artifactId>kyuubi-hive-jdbc-shaded</artifactId>
<version>1.7.0</version>
</dependency>
Connect to non-kerberized Kyuubi Server
The following java code connects directly to the Kyuubi Server by JDBC without using kerberos authentication.
package org.apache.kyuubi.examples;
import java.sql.*;
public class KyuubiJDBC {
private static String driverName = "org.apache.kyuubi.jdbc.KyuubiHiveDriver";
private static String kyuubiJdbcUrl = "jdbc:kyuubi://localhost:10009/default;";
public static void main(String[] args) throws SQLException {
try (
Connection conn = DriverManager.getConnection(kyuubiJdbcUrl);
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("show databases")) {
while (rs.next()) {
System.out.println(rs.getString(1));
}
}
}
}
Connect to Kerberized Kyuubi Server
The following Java code uses a keytab file to login and connect to Kyuubi Server by JDBC.
package org.apache.kyuubi.examples;
import java.sql.*;
public class KyuubiJDBCDemo {
private static String driverName = "org.apache.kyuubi.jdbc.KyuubiHiveDriver";
private static String kyuubiJdbcUrlTemplate = "jdbc:kyuubi://localhost:10009/default;" +
"kyuubiClientPrincipal=%s;kyuubiClientKeytab=%s;kyuubiServerPrincipal=%s";
public static void main(String[] args) throws SQLException {
String clientPrincipal = args[0]; // Kerberos principal
String clientKeytab = args[1]; // Keytab file location
String serverPrincipal = args[2]; // Kerberos principal used by Kyuubi Server
String kyuubiJdbcUrl = String.format(kyuubiJdbcUrlTemplate, clientPrincipal, clientKeytab, serverPrincipal);
try (
Connection conn = DriverManager.getConnection(kyuubiJdbcUrl);
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("show databases")) {
while (rs.next()) {
System.out.println(rs.getString(1));
}
}
}
}