Hbase基本操作---idea连接hbase（shell脚本 springBoot整合Hbase）

编写自动化脚本

vim zhh.sh
=============================
#shell脚本判断参
if [ $1 == "start" ];then
    echo '开启zookeeper\hadoop\hbase'
    /opt/soft/zk345/bin/zkServer.sh start
    /opt/soft/hadoop260/sbin/start-all.sh
    /opt/soft/hbase120/bin/start-hbase.sh
else
    echo '关闭hbase\hadoop\zookeeper'
    /opt/soft/hbase120/bin/stop-hbase.sh
    /opt/soft/hadoop260/sbin/stop-all.sh
    /opt/soft/zk345/bin/zkServer.sh stop
fi  
​
=============================
#授权
chmod 700 zhh.sh
ls
#启动
./zhh.sh start
#关闭
./zhh.sh stop
​

 

 

 

 

一个表有n个列簇
一般建议不超过3个
​

 

进入数据库

hbase shell
#版本
version
#状态
status
#查看
whoami
list
desc 'mydemo:userinfos'
#插入数据（姓名张三  年纪40）
put 'mydemo:userinfos','1','base:name','zhangsan'
put 'mydemo:userinfos','1','base:age',40
#查询值
get 'mydemo:userinfos','1'
​

 

#批量插入

#首先退出数据库
exit
hdfs dfs -mkdir -p /opt
hdfs dfs -put /opt/hbase01.csv /opt
​
#这里最好一句一句粘贴 插入数据
hbase org.apache.hadoop.hbase.mapreduce.ImportTsv 
-Dimporttsv.separator=, 
-Dimporttsv.columns="HBASE_ROW_KEY,base:name,base:age"
'mydemo:userinfos' /opt/hbase01.csv
​
#进入数据库
hbase shell
#查看数据
count 'mydemo:userinfos'

hbase常用命令

#扫描
scan 'mydemo:userinfos'
#删除
get 'mydemo:userinfos','1'
delete 'mydemo:userinfos','1',"base:age"
#删除表
disable 'mydemo:userinfos'
drop 'mydemo:userinfos'
list
#创建表
create "mydemo:userinfos","base"
#分页扫描
scan 'mydemo:userinfos',{LIMIT=>3}
scan 'mydemo:userinfos',{FILTER=>"ValueFilter(=,'substring:a')"}
scan 'mydemo:userinfos',{FILTER=>"SingleColumnValueFilter('base','name',=,'binary:aahepo')"}
​

java编写代码

#1 导包
    
      org.apache.hbase
      hbase-client
      1.2.0
    

#2 编写连接设置
public class App 
{
    public static void main( String[] args ) throws Exception {
        //配置zookeeper地址
        Configuration cfg = HBaseConfiguration.create();
        cfg.set("hbase.zookeeper.quorum","192.168.64.210:2181");
        //获得数据库连接对象
        Connection connection = ConnectionFactory.createConnection(cfg);
        //获取数据表
        Table table = connection.getTable(TableName.valueOf("mydemo:userinfos"));
        //查询表中的数据
        ResultScanner re = table.getScanner(new Scan());
        //遍历循环数据
        for (Result result : re) {
            String name = new String(result.getValue("base".getBytes(),"name".getBytes()));
            String age = new String(result.getValue("base".getBytes(), "age".getBytes()));
            System.out.println(name+"<============>"+age);
        }
        connection.close();
    }
}
​

 

#插入一条数据
public class App 
{
    public static void main( String[] args ) throws Exception {
        //配置zookeeper地址
        Configuration cfg = HBaseConfiguration.create();
        cfg.set("hbase.zookeeper.quorum","192.168.64.210:2181");
        //获得数据库连接对象
        Connection connection = ConnectionFactory.createConnection(cfg);
        //获取数据表
        Table table = connection.getTable(TableName.valueOf("mydemo:userinfos"));
        //准备一个put命令
        Put put=new Put("10000".getBytes());
        put.addColumn("base".getBytes(),"name".getBytes(),"zhangsanfeng".getBytes());
        put.addColumn("base".getBytes(),"age".getBytes(),"200".getBytes());
        //插入一条数据
        table.put(put);
        connection.close();
    }

#查询一条消息
public class App 
{
    public static void main( String[] args ) throws Exception {
        //配置zookeeper地址
        Configuration cfg = HBaseConfiguration.create();
        cfg.set("hbase.zookeeper.quorum","192.168.64.210:2181");
        //获得数据库连接对象
        Connection connection = ConnectionFactory.createConnection(cfg);
        //获取数据表
        Table table = connection.getTable(TableName.valueOf("mydemo:userinfos"));
//        //准备一个put命令
//        Put put=new Put("10000".getBytes());
//        put.addColumn("base".getBytes(),"name".getBytes(),"zhangsanfeng".getBytes());
//        put.addColumn("base".getBytes(),"age".getBytes(),"200".getBytes());
//        //插入一条数据
//        table.put(put);
        //查询一条
        Get get = new Get("10000".getBytes());
        Result result = table.get(get);
        System.out.println(new String(result.getValue("base".getBytes(),"name".getBytes())));
        connection.close();
    }
}

#批量插入
数据库查看
scan 'mydemo:userinfos',{FILTER=>"PrefixFilter('101')"}
======================
​
public class App 
{
    public static void main( String[] args ) throws Exception {
        //配置zookeeper地址
        Configuration cfg = HBaseConfiguration.create();
        cfg.set("hbase.zookeeper.quorum","192.168.64.210:2181");
        //获得数据库连接对象
        Connection connection = ConnectionFactory.createConnection(cfg);
        //获取数据表
        Table table = connection.getTable(TableName.valueOf("mydemo:userinfos"));
​
        List puts = new ArrayList<>();
        for (int i = 1010; i < 1020; i++) {
            Put put = new Put((i + "").getBytes());
            put.addColumn("base".getBytes(),"name".getBytes(),("test"+i).getBytes());
            puts.add(put);
        }
        table.put(puts);
        connection.close();
    }
}

springboot整合hbase

#1 导包 pom
        
            org.apache.hbase
            hbase-shaded-client
            1.2.0
        

#2 config配置
@Configuration
public class HbaseConfig {
    @Value("${hbase.zookeeper.quorum}")
    private String zookeeper_url;
​
    @Bean
    public org.apache.hadoop.conf.Configuration hbaseConfiguration(){
        org.apache.hadoop.conf.Configuration cfg= HBaseConfiguration.create();
        cfg.set(HConstants.ZOOKEEPER_QUORUM,zookeeper_url);
        return cfg;
​
    }
​
    @Bean
    @Scope("prototype")
    public Connection getConnection() {
        Connection connection=null;
        try {
            connection = ConnectionFactory.createConnection(hbaseConfiguration());
        } catch (IOException e) {
            e.printStackTrace();
        }
        return connection;
    }
​
    @Bean
    public Supplier hbaseConSupplier(){
        return ()->{
            return getConnection();
        };
    }
}
​

#3 配置实体类
@Data
@AllArgsConstructor
@NoArgsConstructor
@Builder
public class Userinfos {
    private String rowkey;
    private String name;
    private String age;
}
​

#4 配置service层
@Service
public class HbaseService {
    @Resource
    private Connection hbasecon;
​
    public List findAll(){
        ArrayList users = new ArrayList<>();
        //获取表
        try {
            Table tab = hbasecon.getTable(TableName.valueOf("mydemo:userinfos".getBytes()));
            Scan scan = new Scan();
            ResultScanner results = tab.getScanner(scan);
            for (Result result : results) {
                String name="";
                String age="";
                if(result.containsColumn("base".getBytes(), "name".getBytes())){
                     name = new String(result.getValue("base".getBytes(), "name".getBytes()));
                }
                if(result.containsColumn("base".getBytes(), "age".getBytes())){
                     age = new String(result.getValue("base".getBytes(), "age".getBytes()));
                }
​
​
                Userinfos ui = Userinfos.builder().rowkey(new String(result.getRow()))
                        .name(name)
                        .age(age).build();
​
                users.add(ui);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return users;
    }
    
}

#5 配置 yml
server:
  port: 8081
spring:
  application:
    name: sbhbase
hbase:
  zookeeper:
    quorum: 192.168.64.210:2181

#6 测试
@SpringBootTest
class SbhbaseApplicationTests {
    @Resource
    private HbaseService hbaseService;
​
    @Test
    void contextLoads() {
​
        System.out.println(hbaseService.findAll());
    }
​
}
​

创建名空间

create_namespace 'towercrane'
​
create 'towercrane:tchandler','base'
​
exit

查看大数据

cd /opt/data
ls
cat event_attendees.csv | head -1
cat user_friends.csv  | head -1