Hive1.3 JDBC连接-代码片段

package com.hive.jdbc;



import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.ResultSet;

import java.sql.SQLException;

import java.sql.Statement;



/**

 * 开启hive server服务

 * 

 * nohup bin/hive --service hiveserver >> hiveserver.log 2>&1 &

 *

 *

 */

public class HiveJDBCConnection {

    private static String dirvername = "org.apache.hadoop.hive.jdbc.HiveDriver";

    private static String url = "jdbc:hive://192.168.249.134:10000/default";

    private static String username = "";

    private static String password = "";



    public static void main(String[] args) {

        try {

            Class.forName(dirvername);

        } catch (ClassNotFoundException e) {

            e.printStackTrace();

        }



        try {

            Connection conn = DriverManager.getConnection(url, username,

                    password);



            Statement stmt = conn.createStatement();



            String tablename = "jdbc_table";

            String sql = "drop table " + tablename;



            stmt.execute(sql);



            // 创建表

            sql = "create table "

                    + tablename

                    + " (key String ,value String) ROW FORMAT DELIMITED FIELDS TERMINATED BY ','";



            stmt.execute(sql);



            // load数据到jdbc_table表中

            String filepath = "/lab/testdata/hive_1.txt";

            sql = "load data local inpath '" + filepath

                    + "' into table jdbc_table ";



            stmt.execute(sql);



            // 查询表数据



            sql = "select  * from jdbc_table"; 



            ResultSet res = stmt.executeQuery(sql);



            while (res.next()) {

                String key = res.getString(1);

                String value = res.getString(2);

                System.out.println(key + "\t" + value);

            }



            //System.out.println(stmt);



        } catch (SQLException e) {

            e.printStackTrace();

        }



    }

}