您好,登錄后才能下訂單哦!
本篇內容主要講解“impala jdbc怎么配置”,感興趣的朋友不妨來看看。本文介紹的方法操作簡單快捷,實用性強。下面就讓小編來帶大家學習“impala jdbc怎么配置”吧!
1 看官網jdbc 配置
需要的包,可以從CDH中組件拷貝
commons-logging-X.X.X.jar hadoop-common.jar hive-common-X.XX.X-cdhX.X.X.jar hive-jdbc-X.XX.X-cdhX.X.X.jar hive-metastore-X.XX.X-cdhX.X.X.jar hive-service-X.XX.X-cdhX.X.X.jar httpclient-X.X.X.jar httpcore-X.X.X.jar libfb303-X.X.X.jar libthrift-X.X.X.jar log4j-X.X.XX.jar slf4j-api-X.X.X.jar slf4j-logXjXX-X.X.X.jar
3 例子
import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; public class ClouderaImpalaJdbcExample { // here is an example query based on one of the Hue Beeswax sample tables private static final String SQL_STATEMENT = "SELECT a FROM test limit 10"; // set the impalad host private static final String IMPALAD_HOST = "192.168.1.106"; // port 21050 is the default impalad JDBC port private static final String IMPALAD_JDBC_PORT = "21050"; private static final String CONNECTION_URL = "jdbc:hive2://" + IMPALAD_HOST + ':' + IMPALAD_JDBC_PORT + "/;auth=noSasl"; private static final String JDBC_DRIVER_NAME = "org.apache.hive.jdbc.HiveDriver"; public static void main(String[] args) { System.out.println("\n============================================="); System.out.println("Cloudera Impala JDBC Example"); System.out.println("Using Connection URL: " + CONNECTION_URL); System.out.println("Running Query: " + SQL_STATEMENT); Connection con = null; try { Class.forName(JDBC_DRIVER_NAME); con = DriverManager.getConnection(CONNECTION_URL); Statement stmt = con.createStatement(); ResultSet rs = stmt.executeQuery(SQL_STATEMENT); System.out.println("\n== Begin Query Results ======================"); // print the results to the console while (rs.next()) { // the example query returns one String column System.out.println(rs.getString(1)); } System.out.println("== End Query Results =======================\n\n"); } catch (SQLException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } finally { try { con.close(); } catch (Exception e) { // swallow } } } }
到此,相信大家對“impala jdbc怎么配置”有了更深的了解,不妨來實際操作一番吧!這里是億速云網站,更多相關內容可以進入相關頻道進行查詢,關注我們,繼續學習!
免責聲明:本站發布的內容(圖片、視頻和文字)以原創、轉載和分享為主,文章觀點不代表本網站立場,如果涉及侵權請聯系站長郵箱:is@yisu.com進行舉報,并提供相關證據,一經查實,將立刻刪除涉嫌侵權內容。