Hive的JDBC方式编程

原文 http://user.qzone.qq.com/165162897/blog/1276050795#!app=2&pos=1276050795 1.启动hiveServer ./hive  --service hiveserver 2.编写jdbc代码（hiveExample.java） import java.sql.SQLException; import java.sql.Connection; import java.sql.ResultSet; import java.sql.Statement; import java.sql.DriverManager; public class hiveExample {  private static String driverName = "org.apache.hadoop.hive.jdbc.HiveDriver";  /**   * @param args   */  public static void main(String[] args)throws SQLException {   try {        Class.forName(driverName);      } catch (ClassNotFoundException e) {       System.out.println("classForNameError");        System.exit(1);      }      Connection con = DriverManager.getConnection("jdbc:hive://hadoopJobTacker:10000/default", "", "");      Statement stmt = con.createStatement();           // select * query      String sql = "select * from dayrawlog limit 5" ;      System.out.println("Running: " + sql);      ResultSet res = stmt.executeQuery(sql);      while (res.next()) {       System.out.println(String.valueOf(res.getString(1)) + "\t" + res.getString(2));      }  } } 3.编译 javac hiveExample.java 4.编写执行脚本并设置classPath cat run.sh  #!/bin/bash HIVE_HOME=/usr/local/hive HADOOP_HOME=/usr/local/hadoop echo -e '1\x01foo' > /tmp/a.txt echo -e '2\x01bar' >> /tmp/a.txt HADOOP_CORE=`ls $HADOOP_HOME/hadoop-*-core.jar` CLASSPATH=.:$HADOOP_CORE:$HIVE_HOME/conf for i in ${HIVE_HOME}/lib/*.jar ; do     CLASSPATH=$CLASSPATH:$i done java -cp $CLASSPATH hiveExample   5.运行 ./run.sh 将会产生如下输出 Hive history file=/tmp/hadoop/hive_job_log_hadoop_201006091025_228147173.txt 10/06/09 10:25:53 INFO exec.HiveHistory: Hive history file=/tmp/hadoop/hive_job_log_hadoop_201006091025_228147173.txt Running: select * from dayrawlog limit 5 poderr1 /pod/201006070000.10.1.120.37.hash0 pod     /pod/201006070000.10.1.120.37.hash0 poderr1 /pod/201006070000.10.1.120.37.hash0 pod     /pod/201006070000.10.1.120.37.hash0 pod     /pod/201006070000.10.1.120.37.hash0