a76c344042
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99 lines
3.3 KiB
Markdown
99 lines
3.3 KiB
Markdown
<!--
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- Licensed to the Apache Software Foundation (ASF) under one or more
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- contributor license agreements. See the NOTICE file distributed with
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- this work for additional information regarding copyright ownership.
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- The ASF licenses this file to You under the Apache License, Version 2.0
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- (the "License"); you may not use this file except in compliance with
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- the License. You may obtain a copy of the License at
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-
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- http://www.apache.org/licenses/LICENSE-2.0
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-
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- Unless required by applicable law or agreed to in writing, software
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- distributed under the License is distributed on an "AS IS" BASIS,
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- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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- See the License for the specific language governing permissions and
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- limitations under the License.
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-->
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<div align=center>
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</div>
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# Getting Started With Hive JDBC
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## How to install JDBC driver
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Kyuubi JDBC driver is fully compatible with the 2.3.* version of hive JDBC driver, so we reuse hive JDBC driver to connect to Kyuubi server.
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Add repository to your maven configuration file which may reside in `$MAVEN_HOME/conf/settings.xml`.
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```xml
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<repositories>
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<repository>
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<id>central maven repo</id>
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<name>central maven repo https</name>
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<url>https://repo.maven.apache.org/maven2</url>
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</repository>
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<repositories>
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```
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You can add below dependency to your `pom.xml` file in your application.
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```xml
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<!-- https://mvnrepository.com/artifact/org.apache.hive/hive-jdbc -->
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<dependency>
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<groupId>org.apache.hive</groupId>
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<artifactId>hive-jdbc</artifactId>
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<version>2.3.7</version>
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</dependency>
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<dependency>
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<groupId>org.apache.hadoop</groupId>
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<artifactId>hadoop-common</artifactId>
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<!-- keep consistent with the build hadoop version -->
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<version>2.7.4</version>
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</dependency>
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```
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## Use JDBC driver with kerberos
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The below java code is using a keytab file to login and connect to Kyuubi server by JDBC.
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```java
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package org.apache.kyuubi.examples;
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import java.io.IOException;
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import java.security.PrivilegedExceptionAction;
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import java.sql.*;
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import org.apache.hadoop.security.UserGroupInformation;
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public class JDBCTest {
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private static String driverName = "org.apache.hive.jdbc.HiveDriver";
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private static String kyuubiJdbcUrl = "jdbc:hive2://localhost:10009/default;";
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public static void main(String[] args) throws ClassNotFoundException, SQLException {
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String principal = args[0]; // kerberos principal
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String keytab = args[1]; // keytab file location
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Configuration configuration = new Configuration();
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configuration.set(HADOOP_SECURITY_AUTHENTICATION, "kerberos");
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UserGroupInformation.setConfiguration(configuration);
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UserGroupInformation ugi = UserGroupInformation.loginUserFromKeytabAndReturnUGI(principal, keytab);
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Class.forName(driverName);
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Connection conn = ugi.doAs(new PrivilegedExceptionAction<Connection>(){
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public Connection run() throws SQLException {
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return DriverManager.getConnection(kyuubiJdbcUrl);
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}
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});
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Statement st = conn.createStatement();
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ResultSet res = st.executeQuery("show databases");
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while (res.next()) {
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System.out.println(res.getString(1));
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}
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res.close();
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st.close();
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conn.close();
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}
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}
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```
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