5，idea 操作 hive ：

1 ，pom 文件 ：

<dependencies>
    <dependency>
        <groupId>lifecycle_commons</groupId>
        <artifactId>commons</artifactId>
        <version>1.0-SNAPSHOT</version>
    </dependency>

    <!-- 本地测试 -->
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
        <scope>test</scope>
    </dependency>
    <!-- 本地使用 hive -->
    <dependency>
        <groupId>org.apache.hive</groupId>
        <artifactId>hive-exec</artifactId>
        <version>1.2.1</version>
    </dependency>
    <dependency>
        <groupId>org.apache.hive</groupId>
        <artifactId>hive-jdbc</artifactId>
        <version>1.1.0</version>
    </dependency>
</dependencies>

2 ，java 代码连接 hive

package com.lifecycle.myTest;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;

public class TestHive {

    private static String ip = "ec2-161-189-165-115.cn-northwest-1.compute.amazonaws.com.cn";
    private static String driverName = "org.apache.hive.jdbc.HiveDriver";
    private static String url = "jdbc:hive2://"+ip+":10000/da";
    private static String user = "root";
    private static String password = "root";

    private static Connection conn = null;
    private static Statement stmt = null;
    private static ResultSet rs = null;


    //  测试
    public static void main(String[] args) throws Exception {
        //  初始化
        init();
        //  执行逻辑
        selectData();
        //  释放资源
        finish();
    }

    //  初始化
    public static void init() throws Exception {
        Class.forName(driverName);
        conn = DriverManager.getConnection(url, user, password);
        stmt = conn.createStatement();
    }

    //  建库
    public static void createDatabase() throws Exception {
        String sql = "create database hive_jdbc_test";
        System.out.println("Running: " + sql);
        stmt.executeQuery(sql);
    }

    //  删库
    public static void dropDatabase() throws Exception {
        String sql = "drop database if exists hive_jdbc_test";
        System.out.println("Running: " + sql);
        stmt.execute(sql);
    }

    //  查看所有库
    public static void showDatabases() throws Exception {
        String sql = "show databases";
        System.out.println("Running: " + sql + "\n");
        rs = stmt.executeQuery(sql);
        while (rs.next()) {
            System.out.println(rs.getString(1));
        }
    }

    //  建表
    public static void createTable() throws Exception {
        String sql = "create table t2(id int ,name String) row format delimited fields terminated by ',';";
        System.out.println("Running: " + sql);
        stmt.execute(sql);
    }

    //  导入数据
    public static void loadData() throws Exception {
        String filePath = "s3://";
        String sql = "load data local inpath '" + filePath + "' overwrite into table t2";
        System.out.println("Running: " + sql);
        stmt.execute(sql);
    }

    //  查询
    public static void selectData() throws Exception {
        String sql = "select * from saleseason";
        System.out.println("Running: " + sql);
        stmt.execute("use da");
        rs = stmt.executeQuery(sql);
        while (rs.next()) {
            System.out.println(rs.getString(1) + "\t" + rs.getString(2));
        }
    }

    //  删除表
    public static void drop(Statement stmt) throws Exception {
        String dropSQL = "drop table t2";
        boolean bool = stmt.execute(dropSQL);
        System.out.println("删除表是否成功:" + bool);
    }

    //  释放资源
    public static void finish() throws Exception {
        if (rs != null) {
            rs.close();
        }
        if (stmt != null) {
            stmt.close();
        }
        if (conn != null) {
            conn.close();
        }
    }
}