hbase client api 例子-2

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原创最新推荐文章于 2026-05-19 09:46:59 发布 1.4k 阅读 AI 写同款· GEO 优化 ›

更新hbase client api 2.0.1记录今天更新hbase-client版本发现原本使用的utils类提示方法废弃，所以查询新的api文档发现确实做了变更，而且以前1.x用的方法将会在以后3.x版本删除；更新的版本maven： <dependency> <groupId>org.apache.hbase</groupId> <artifactId>hbase-... 阅读详情

发布一个k8s部署视频：https://edu.youkuaiyun.com/course/detail/26967

课程内容：各种k8s部署方式。包括minikube部署，kubeadm部署，kubeasz部署，rancher部署，k3s部署。包括开发测试环境部署k8s，和生产环境部署k8s。

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腾讯课堂连接地址https://ke.qq.com/course/484107?tuin=ba64518

介绍主要的k8s资源的使用配置和命令。包括configmap，pod，service，replicaset，namespace，deployment，daemonset，ingress，pv，pvc，sc，role，rolebinding，clusterrole，clusterrolebinding，secret，serviceaccount，statefulset，job，cronjob，podDisruptionbudget，podSecurityPolicy,networkPolicy,resourceQuota，limitrange，endpoint，event，conponentstatus，node，apiservice，controllerRevision等。

第三个视频发布：https://edu.youkuaiyun.com/course/detail/27574

详细介绍helm命令，学习helm chart语法，编写helm chart。深入分析各项目源码，学习编写helm插件
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package example;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.client.HBaseAdmin;
import org.apache.hadoop.hbase.client.HTable;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.hbase.util.Pair;

//Administrator
public class AdvancedCreateTableExample {
	public static void printRegion(String tableName)throws Exception{
		System.out.println("tableName:"+tableName);
		Configuration conf=HBaseConfiguration.create();
		HTable table=new HTable(conf,tableName);
		Pair<byte[][],byte[][]> pair=table.getStartEndKeys();
		byte[][]firsts=pair.getFirst();
		for(int i=0;i<firsts.length;i++){
			if(firsts[i].length==8){
				System.out.println(Bytes.toLong(firsts[i])+"--------"+Bytes.toLong(pair.getSecond()[i]));
			}else{
				System.out.println(Bytes.toStringBinary(firsts[i])+"--------"+Bytes.toStringBinary(pair.getSecond()[i]));
			}
			
		}
	}
	/**
	 * @param args
	 */
	public static void main(String[] args) throws Exception{
		Configuration conf=HBaseConfiguration.create();
		HBaseAdmin admin=new HBaseAdmin(conf);
		HTableDescriptor tabDesc=new HTableDescriptor(Bytes.toBytes("test13"));
		HColumnDescriptor colDesc=new HColumnDescriptor("fam1");
		tabDesc.addFamily(colDesc);
		admin.createTable(tabDesc,Bytes.toBytes(1L),Bytes.toBytes(100L),10);
		printRegion("test13");
		HTableDescriptor tabDesc2=new HTableDescriptor(Bytes.toBytes("test14"));
		HColumnDescriptor colDesc2=new HColumnDescriptor("fam1");
		tabDesc2.addFamily(colDesc2);
		byte [][]spilit=new byte[][]{
				Bytes.toBytes("A"),
				Bytes.toBytes("B"),
				Bytes.toBytes("C"),
				Bytes.toBytes("D")
		};
		admin.createTable(tabDesc2, spilit);
		printRegion("test14");

	}

}

package example;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.client.HBaseAdmin;

//Administrator
public class CreateTableExample {

	/**
	 * @param args
	 */
	public static void main(String[] args) throws Exception{
		Configuration conf=HBaseConfiguration.create();
		HBaseAdmin admin=new HBaseAdmin(conf);
		HTableDescriptor tableDesc=new HTableDescriptor("test2");
		HColumnDescriptor colDesc=new HColumnDescriptor("col1");
		tableDesc.addFamily(colDesc);
		admin.createTable(tableDesc);
		System.out.println(admin.isTableAvailable("test2"));
	}

}

package example;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.client.HBaseAdmin;

//Administrator
public class DDEExample {

	/**
	 * @param args
	 */
	public static void main(String[] args) throws Exception{
		Configuration conf=HBaseConfiguration.create();
		HBaseAdmin admin=new HBaseAdmin(conf);
		System.out.println("available:"+admin.isTableAvailable("test9"));
		System.out.println("enalbe:"+admin.isTableEnabled("test9"));
		System.out.println("disable:"+admin.isTableDisabled("test9"));
		System.out.println("------------");
		admin.disableTable("test9");
		System.out.println("available:"+admin.isTableAvailable("test9"));
		System.out.println("enalbe:"+admin.isTableEnabled("test9"));
		System.out.println("disable:"+admin.isTableDisabled("test9"));
		System.out.println("------------");
		admin.deleteTable("test9");
		System.out.println("available:"+admin.isTableAvailable("test9"));
		System.out.println("------------");
		System.out.println("exist:"+admin.tableExists("test9"));

	}

}

package example;
import java.util.ArrayList;
import java.util.List;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.client.HTable;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.client.ResultScanner;
import org.apache.hadoop.hbase.client.Scan;
import org.apache.hadoop.hbase.filter.BinaryComparator;
import org.apache.hadoop.hbase.filter.CompareFilter.CompareOp;
import org.apache.hadoop.hbase.filter.Filter;
import org.apache.hadoop.hbase.filter.FilterList;
import org.apache.hadoop.hbase.filter.FilterList.Operator;
import org.apache.hadoop.hbase.filter.QualifierFilter;
import org.apache.hadoop.hbase.filter.RowFilter;
import org.apache.hadoop.hbase.filter.SubstringComparator;
import org.apache.hadoop.hbase.filter.ValueFilter;
import org.apache.hadoop.hbase.util.Bytes;

//Administrator
public class FilterListExample {

	/**
	 * @param args
	 */
	public static void main(String[] args) throws Exception{
		Configuration conf=HBaseConfiguration.create();
		HTable table=new HTable(conf,"testtable");
		List<Filter> filterList=new ArrayList<Filter>();
		Filter rowFilter=new RowFilter(CompareOp.EQUAL, new SubstringComparator("6"));
		filterList.add(rowFilter);
		Filter columnFilter=new QualifierFilter(CompareOp.NOT_EQUAL,  new SubstringComparator("6"));
		filterList.add(columnFilter);
		Filter valueFilter=new ValueFilter(CompareOp.LESS, new BinaryComparator(Bytes.toBytes("value8")));
		filterList.add(valueFilter);
		FilterList filters=new FilterList(filterList);
		Scan scan=new Scan();
		scan.setFilter(filters);
		ResultScanner resultScanner=table.getScanner(scan);
		for(Result result:resultScanner){
			for(KeyValue kv:result.raw()){
				System.out.println(kv+"--------"+Bytes.toString(kv.getValue()));
			}
		}
		resultScanner.close();
		System.out.println("------------");
		filters=new FilterList(Operator.MUST_PASS_ONE,filterList);
		scan.setFilter(filters);
		 resultScanner=table.getScanner(scan);
		for(Result result:resultScanner){
			for(KeyValue kv:result.raw()){
				System.out.println(kv+"--------"+Bytes.toString(kv.getValue()));
			}
		}
		resultScanner.close();

	}

}

package example;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.client.HTable;
import org.apache.hadoop.hbase.util.Bytes;

//Administrator
public class IncrementExample {

	/**
	 * @param args
	 */
	public static void main(String[] args) throws Exception{
		Configuration conf=HBaseConfiguration.create();
		HTable table=new HTable(conf,"testtable");
		long l=table.incrementColumnValue(Bytes.toBytes("row9"), Bytes.toBytes("family1"), Bytes.toBytes("inc"), 1);
		System.out.println(l);
		 l=table.incrementColumnValue(Bytes.toBytes("row9"), Bytes.toBytes("family1"), Bytes.toBytes("inc"), 0);
		System.out.println(l);
		l=table.incrementColumnValue(Bytes.toBytes("row9"), Bytes.toBytes("family1"), Bytes.toBytes("inc"), -1);
		System.out.println(l);

	}

}

package example;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.client.HBaseAdmin;
import org.apache.hadoop.hbase.util.Bytes;

//Administrator
public class ListTableExample {

	/**
	 * @param args
	 */
	public static void main(String[] args)throws Exception {
		Configuration conf=HBaseConfiguration.create();
		HBaseAdmin admin=new HBaseAdmin(conf);
		HTableDescriptor[] descList=admin.listTables();
		for(HTableDescriptor desc:descList){
			System.out.println(Bytes.toString(desc.getName()));
		}
		HTableDescriptor desc=admin.getTableDescriptor(Bytes.toBytes("testtable"));
		System.out.println(Bytes.toString(desc.getName()));
	}

}

package example;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.client.HBaseAdmin;
import org.apache.hadoop.hbase.util.Bytes;

//Administrator
public class ModifyTableExample {

	/**
	 * @param args
	 */
	public static void main(String[] args)throws Exception {
		Configuration conf=HBaseConfiguration.create();
		HBaseAdmin admin=new HBaseAdmin(conf);
		HTableDescriptor desc=new HTableDescriptor("modify");
		HColumnDescriptor colDesc=new HColumnDescriptor("fam1");
		desc.addFamily(colDesc);
		admin.createTable(desc);
		HTableDescriptor desc2=admin.getTableDescriptor(Bytes.toBytes("modify"));
		HColumnDescriptor colDesc2=new HColumnDescriptor("fami2");
		desc2.addFamily(colDesc2);
		admin.disableTable("modify");
		admin.modifyTable("modify", desc2);
		admin.enableTable("modify");
		HTableDescriptor desc3=admin.getTableDescriptor(Bytes.toBytes("modify"));
		System.out.println("is equal:"+desc2.equals(desc3));
		System.out.println(desc3);
	}

}

package example;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.client.HBaseAdmin;
import org.apache.hadoop.hbase.util.Bytes;

//Administrator
public class ModifyTableExample2 {

	/**
	 * @param args
	 */
	public static void main(String[] args)throws Exception {
		Configuration conf=HBaseConfiguration.create();
		HBaseAdmin admin=new HBaseAdmin(conf);
		admin.enableTable("test8");
		admin.disableTable("test8");
		admin.deleteColumn("test8", "fam1");
		admin.enableTable("test8");
		System.out.println(admin.getTableDescriptor(Bytes.toBytes("test8")));
		admin.disableTable("test8");
		admin.addColumn("test8", new HColumnDescriptor("fam1"));
		System.out.println(admin.getTableDescriptor(Bytes.toBytes("test8")));

	}

}

package example;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.client.HTable;
import org.apache.hadoop.hbase.client.Increment;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.util.Bytes;

//Administrator
public class MultiIncrementExample {

	/**
	 * @param args
	 */
	public static void main(String[] args)throws Exception {
		Configuration conf=HBaseConfiguration.create();
		HTable table=new HTable(conf,"testtable");
		Increment increment=new Increment(Bytes.toBytes("row9"));
		increment.addColumn(Bytes.toBytes("family1"), Bytes.toBytes("inc"), 0);
		increment.addColumn(Bytes.toBytes("family1"), Bytes.toBytes("inc1"), -1);
		increment.addColumn(Bytes.toBytes("family1"), Bytes.toBytes("inc2"), 2);
		
		Result result=table.increment(increment);
		for(KeyValue kv:result.raw()){
			System.out.println(kv+"-----"+Bytes.toLong(kv.getValue()));
		}

	}

}

package example;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.client.HTableInterface;
import org.apache.hadoop.hbase.client.HTablePool;

//Administrator
public class TablePoolExample {

	/**
	 * @param args
	 */
	public static void main(String[] args) throws Exception{
		Configuration conf=HBaseConfiguration.create();
		HTablePool pool=new HTablePool(conf,5);
		HTableInterface [] inter=new HTableInterface[10];
		for(int i=0;i<inter.length;i++){
			inter[i]=pool.getTable("testtable");
		}
		for(int i=0;i<inter.length;i++){
			pool.putTable(inter[i]);
		}
		
		pool.closeTablePool("testtable");

	}

}

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