Java操作Hbase进行建表、删表以及对数据进行增删改查，条件查询详解编程语言

1、搭建环境

新建JAVA项目，添加的包有:

有关Hadoop的hadoop-core-0.20.204.0.jar

有关Hbase的hbase-0.90.4.jar、hbase-0.90.4-tests.jar以及Hbase资源包中lib目录下的所有jar包

import java.io.IOException;  
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.HColumnDescriptor;  
import org.apache.hadoop.hbase.HTableDescriptor;  
import org.apache.hadoop.hbase.KeyValue;  
import org.apache.hadoop.hbase.MasterNotRunningException;  
import org.apache.hadoop.hbase.ZooKeeperConnectionException;  
import org.apache.hadoop.hbase.client.Delete;  
import org.apache.hadoop.hbase.client.Get;  
import org.apache.hadoop.hbase.client.HBaseAdmin;  
import org.apache.hadoop.hbase.client.HTable;  
import org.apache.hadoop.hbase.client.HTablePool;  
import org.apache.hadoop.hbase.client.Put;  
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.Filter;  
import org.apache.hadoop.hbase.filter.FilterList;  
import org.apache.hadoop.hbase.filter.SingleColumnValueFilter;  
import org.apache.hadoop.hbase.filter.CompareFilter.CompareOp;  
import org.apache.hadoop.hbase.util.Bytes;  
public class JinTaoTest {  
public static Configuration configuration;  
static {  
configuration = HBaseConfiguration.create();  
configuration.set("hbase.zookeeper.property.clientPort", "2181");  
configuration.set("hbase.zookeeper.quorum", "192.168.1.100");  
configuration.set("hbase.master", "192.168.1.100:600000");  
}  
public static void main(String[] args) {  
// createTable("wujintao");  
// insertData("wujintao");  
// QueryAll("wujintao");  
// QueryByCondition1("wujintao");  
// QueryByCondition2("wujintao");  
//QueryByCondition3("wujintao");  
//deleteRow("wujintao","abcdef");  
deleteByCondition("wujintao","abcdef");  
}  
public static void createTable(String tableName) {  
System.out.println("start create table ......");  
try {  
HBaseAdmin hBaseAdmin = new HBaseAdmin(configuration);  
if (hBaseAdmin.tableExists(tableName)) {// 如果存在要创建的表，那么先删除，再创建  
hBaseAdmin.disableTable(tableName);  
hBaseAdmin.deleteTable(tableName);  
System.out.println(tableName + " is exist,detele....");  
}  
HTableDescriptor tableDescriptor = new HTableDescriptor(tableName);  
tableDescriptor.addFamily(new HColumnDescriptor("column1"));  
tableDescriptor.addFamily(new HColumnDescriptor("column2"));  
tableDescriptor.addFamily(new HColumnDescriptor("column3"));  
hBaseAdmin.createTable(tableDescriptor);  
} catch (MasterNotRunningException e) {  
e.printStackTrace();  
} catch (ZooKeeperConnectionException e) {  
e.printStackTrace();  
} catch (IOException e) {  
e.printStackTrace();  
}  
System.out.println("end create table ......");  
}  
public static void insertData(String tableName) {  
System.out.println("start insert data ......");  
HTablePool pool = new HTablePool(configuration, 1000);  
HTable table = (HTable) pool.getTable(tableName);  
Put put = new Put("112233bbbcccc".getBytes());// 一个PUT代表一行数据，再NEW一个PUT表示第二行数据,每行一个唯一的ROWKEY，此处rowkey为put构造方法中传入的值  
put.add("column1".getBytes(), null, "aaa".getBytes());// 本行数据的第一列  
put.add("column2".getBytes(), null, "bbb".getBytes());// 本行数据的第三列  
put.add("column3".getBytes(), null, "ccc".getBytes());// 本行数据的第三列  
try {  
table.put(put);  
} catch (IOException e) {  
e.printStackTrace();  
}  
System.out.println("end insert data ......");  
}  
public static void dropTable(String tableName) {  
try {  
HBaseAdmin admin = new HBaseAdmin(configuration);  
admin.disableTable(tableName);  
admin.deleteTable(tableName);  
} catch (MasterNotRunningException e) {  
e.printStackTrace();  
} catch (ZooKeeperConnectionException e) {  
e.printStackTrace();  
} catch (IOException e) {  
e.printStackTrace();  
}  
}  
public static void deleteRow(String tablename, String rowkey)  {  
try {  
HTable table = new HTable(configuration, tablename);  
List list = new ArrayList();  
Delete d1 = new Delete(rowkey.getBytes());  
list.add(d1);  
table.delete(list);  
System.out.println("删除行成功!");  
} catch (IOException e) {  
e.printStackTrace();  
}  
}  
public static void deleteByCondition(String tablename, String rowkey)  {  
//目前还没有发现有效的API能够实现根据非rowkey的条件删除这个功能能，还有清空表全部数据的API操作  
}  
public static void QueryAll(String tableName) {  
HTablePool pool = new HTablePool(configuration, 1000);  
HTable table = (HTable) pool.getTable(tableName);  
try {  
ResultScanner rs = table.getScanner(new Scan());  
for (Result r : rs) {  
System.out.println("获得到rowkey:" + new String(r.getRow()));  
for (KeyValue keyValue : r.raw()) {  
System.out.println("列：" + new String(keyValue.getFamily())  
+ "====值:" + new String(keyValue.getValue()));  
}  
}  
} catch (IOException e) {  
e.printStackTrace();  
}  
}  
public static void QueryByCondition1(String tableName) {  
HTablePool pool = new HTablePool(configuration, 1000);  
HTable table = (HTable) pool.getTable(tableName);  
try {  
Get scan = new Get("abcdef".getBytes());// 根据rowkey查询  
Result r = table.get(scan);  
System.out.println("获得到rowkey:" + new String(r.getRow()));  
for (KeyValue keyValue : r.raw()) {  
System.out.println("列：" + new String(keyValue.getFamily())  
+ "====值:" + new String(keyValue.getValue()));  
}  
} catch (IOException e) {  
e.printStackTrace();  
}  
}  
public static void QueryByCondition2(String tableName) {  
try {  
HTablePool pool = new HTablePool(configuration, 1000);  
HTable table = (HTable) pool.getTable(tableName);  
Filter filter = new SingleColumnValueFilter(Bytes  
.toBytes("column1"), null, CompareOp.EQUAL, Bytes  
.toBytes("aaa")); // 当列column1的值为aaa时进行查询  
Scan s = new Scan();  
s.setFilter(filter);  
ResultScanner rs = table.getScanner(s);  
for (Result r : rs) {  
System.out.println("获得到rowkey:" + new String(r.getRow()));  
for (KeyValue keyValue : r.raw()) {  
System.out.println("列：" + new String(keyValue.getFamily())  
+ "====值:" + new String(keyValue.getValue()));  
}  
}  
} catch (Exception e) {  
e.printStackTrace();  
}  
}  
public static void QueryByCondition3(String tableName) {  
try {  
HTablePool pool = new HTablePool(configuration, 1000);  
HTable table = (HTable) pool.getTable(tableName);  
List<Filter> filters = new ArrayList<Filter>();  
Filter filter1 = new SingleColumnValueFilter(Bytes  
.toBytes("column1"), null, CompareOp.EQUAL, Bytes  
.toBytes("aaa"));  
filters.add(filter1);  
Filter filter2 = new SingleColumnValueFilter(Bytes  
.toBytes("column2"), null, CompareOp.EQUAL, Bytes  
.toBytes("bbb"));  
filters.add(filter2);  
Filter filter3 = new SingleColumnValueFilter(Bytes  
.toBytes("column3"), null, CompareOp.EQUAL, Bytes  
.toBytes("ccc"));  
filters.add(filter3);  
FilterList filterList1 = new FilterList(filters);  
Scan scan = new Scan();  
scan.setFilter(filterList1);  
ResultScanner rs = table.getScanner(scan);  
for (Result r : rs) {  
System.out.println("获得到rowkey:" + new String(r.getRow()));  
for (KeyValue keyValue : r.raw()) {  
System.out.println("列：" + new String(keyValue.getFamily())  
+ "====值:" + new String(keyValue.getValue()));  
}  
}  
rs.close();  
} catch (Exception e) {  
e.printStackTrace();  
}  
}  
}