服务端启动

配置文件是Hive的配置文件

服务端启动

hiveserver2

客户端启动

1. 进入后连接

$ beeline
beeline> !connect jdbc:hive2://node2:10000
Connecting to jdbc:hive2://node2:10000
Enter username for jdbc:hive2://node2:10000: root
Enter password for jdbc:hive2://node2:10000:

默认端口号为10000，用户名使用root，无密码

1. 直接连接

beeline -u jdbc:hive2://node2:10000 -u root

JDBC

pom.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.avcdata</groupId>
    <artifactId>boot2hive2</artifactId>
    <version>1.0-SNAPSHOT</version>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-assembly-plugin</artifactId>
                <version>2.4</version>
                <configuration>
                    <descriptorRefs>
                        <descriptorRef>jar-with-dependencies</descriptorRef>
                    </descriptorRefs>
                    <archive>
                        <manifest>
                            <mainClass>com.avcdata.Main</mainClass>
                        </manifest>
                    </archive>
                </configuration>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>single</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>8</source>
                    <target>8</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
    <dependencies>
        <!-- https://mvnrepository.com/artifact/org.apache.hive/hive-jdbc -->
        <dependency>
            <groupId>org.apache.hive</groupId>
            <artifactId>hive-jdbc</artifactId>
            <version>1.2.1</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.apache.hadoop/hadoop-common -->
        <dependency>
            <groupId>org.apache.hadoop</groupId>
            <artifactId>hadoop-common</artifactId>
            <version>2.6.0</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/com.alibaba/fastjson -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.49</version>
        </dependency>


    </dependencies>
    <repositories>
        <repository>
            <id>central</id>
            <name>Central Repository</name>
            <url>http://repo.maven.apache.org/maven2</url>
            <layout>default</layout>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </repository>
    </repositories>

</project>

Java代码

package com.avcdata;


import com.alibaba.fastjson.JSONObject;

import java.sql.*;
import java.util.List;
import java.util.Map;

public class Main {

    public static void main(String[] args) throws SQLException {
        try {
            String driverName = "org.apache.hive.jdbc.HiveDriver";
            Class.forName(driverName);
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }

        Connection conn = DriverManager.getConnection("jdbc:hive2://node2:10000", "root", "");
        Statement stmt = conn.createStatement();
        String sql = "SELECT * FROM psn7";
        ResultSet rs = stmt.executeQuery(sql);


        while (rs.next()) {
            List<String> likes = JSONObject.parseArray(rs.getString(3), String.class);
            Map address = JSONObject.parseObject(rs.getString(4), Map.class);
            System.out.println(rs.getString(1) + "\t" + rs.getString(2));
            System.out.println(likes);
            System.out.println(address);
        }
    }
}