不多说,直接上代码,大家都懂得

package hbase;

import java.io.IOException;

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.TableDescriptors;
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.Put;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.client.ResultScanner;
import org.apache.hadoop.hbase.client.Scan;
/**
* Java操作HBase
* @author liuyazhuang
*/
public class HBaseApp {
//创建表、插入记录、查询一条记录、遍历所有的记录、删除表
public static final String TABLE_NAME = "table1";
public static final String FAMILY_NAME = "family1";
public static final String ROW_KEY = "rowkey1";
public static void main(String[] args) throws Exception {
Configuration conf = HBaseConfiguration.create();
conf.set("hbase.rootdir", "hdfs://hadoop0:9000/hbase");
//使用eclipse时必须添加这个,否则无法定位
conf.set("hbase.zookeeper.quorum", "hadoop0");
//创建表、删除表使用HBaseAdmin
final HBaseAdmin hBaseAdmin = new HBaseAdmin(conf);
createTable(hBaseAdmin);

//插入记录、查询一条记录、遍历所有的记录HTable
final HTable hTable = new HTable(conf, TABLE_NAME);
//putRecord(hTable);
//getRecord(hTable);
//scanTable(hTable);
hTable.close();

//deleteTable(hBaseAdmin);
}
//扫描表记录
private static void scanTable(final HTable hTable) throws IOException {
Scan scan = new Scan();
final ResultScanner scanner = hTable.getScanner(scan);
for (Result result : scanner) {
final byte[] value = result.getValue(FAMILY_NAME.getBytes(), "age".getBytes());
System.out.println(result+"\t"+new String(value));
}
}
//获取记录
private static void getRecord(final HTable hTable) throws IOException {
Get get = new Get(ROW_KEY.getBytes());
final Result result = hTable.get(get);
final byte[] value = result.getValue(FAMILY_NAME.getBytes(), "age".getBytes());
System.out.println(result+"\t"+new String(value));
}
//插入记录
private static void putRecord(final HTable hTable) throws IOException {
Put put = new Put(ROW_KEY.getBytes());
put.add(FAMILY_NAME.getBytes(), "age".getBytes(), "25".getBytes());
hTable.put(put);
}
//删除表
private static void deleteTable(final HBaseAdmin hBaseAdmin)
throws IOException {
hBaseAdmin.disableTable(TABLE_NAME);
hBaseAdmin.deleteTable(TABLE_NAME);
}
//创建表
private static void createTable(final HBaseAdmin hBaseAdmin)
throws IOException {
if(!hBaseAdmin.tableExists(TABLE_NAME)){
HTableDescriptor tableDescriptor = new HTableDescriptor(TABLE_NAME);
HColumnDescriptor family = new HColumnDescriptor(FAMILY_NAME);
tableDescriptor.addFamily(family);
hBaseAdmin.createTable(tableDescriptor);
}
}
}