一. shell命令
1. 进入hbase命令行 ./hbase shell
2. 显示hbase中的表 list
3. 创建user表，包括info、data两个列族
create ‘user‘, ‘info‘, ‘data‘
create ‘user‘, {NAME => ‘info‘, VERSIONS => ‘3‘}
4. 向表中插入信息：
向user表中插入信息。row key为rk0001。列族info中加入name列标示符，值为zhangsan
put ‘user‘, ‘rk0001‘, ‘info:name‘, ‘zhangsan‘
向user表中插入信息。row key为rk0001。列族info中加入gender列标示符，值为female
put ‘user‘, ‘rk0001‘, ‘info:gender‘, ‘female‘
向user表中插入信息。row key为rk0001，列族info中加入age列标示符。值为20
put ‘user‘, ‘rk0001‘, ‘info:age‘, 20
向user表中插入信息，row key为rk0001，列族data中加入pic列标示符，值为picture
put ‘user‘, ‘rk0001‘, ‘data:pic‘, ‘picture‘
5. 获取表中的信息：
获取user表中row key为rk0001的全部信息
get ‘user‘, ‘rk0001‘
获取user表中row key为rk0001，info列族的全部信息
get ‘user‘, ‘rk0001‘, ‘info‘
获取user表中row key为rk0001，info列族的name、age列标示符的信息
get ‘user‘, ‘rk0001‘, ‘info:name‘, ‘info:age‘
获取user表中row key为rk0001，info、data列族的信息
get ‘user‘, ‘rk0001‘, ‘info‘, ‘data‘
get ‘user‘, ‘rk0001‘, {COLUMN => [‘info‘, ‘data‘]}
get ‘user‘, ‘rk0001‘, {COLUMN => [‘info:name‘, ‘data:pic‘]}
获取user表中row key为rk0001，列族为info，版本最新5个的信息
get ‘people‘, ‘rk0002‘, {COLUMN => ‘info‘, VERSIONS => 2}
get ‘user‘, ‘rk0001‘, {COLUMN => ‘info:name‘, VERSIONS => 5}
get ‘user‘, ‘rk0001‘, {COLUMN => ‘info:name‘, VERSIONS => 5, TIMERANGE => [1392368783980, 1392380169184]}
获取user表中row key为rk0001。cell的值为zhangsan的信息
get ‘people‘, ‘rk0001‘, {FILTER => "ValueFilter(=, ‘binary:图片‘)"}
获取user表中row key为rk0001，列标示符中含有a的信息
get ‘people‘, ‘rk0001‘, {FILTER => "(QualifierFilter(=,‘substring:a‘))"}
put ‘user‘, ‘rk0002‘, ‘info:name‘, ‘fanbingbing‘
put ‘user‘, ‘rk0002‘, ‘info:gender‘, ‘female‘
put ‘user‘, ‘rk0002‘, ‘info:nationality‘, ‘中国‘
get ‘user‘, ‘rk0002‘, {FILTER => "ValueFilter(=, ‘binary:中国‘)"}
6. 查询表中信息：
查询user表中的全部信息
scan ‘user‘
查询user表中列族为info的信息
scan ‘people‘, {COLUMNS => ‘info‘}
scan ‘user‘, {COLUMNS => ‘info‘, RAW => true, VERSIONS => 5}
scan ‘persion‘, {COLUMNS => ‘info‘, RAW => true, VERSIONS => 3}
查询user表中列族为info和data的信息
scan ‘user‘, {COLUMNS => [‘info‘, ‘data‘]}
scan ‘user‘, {COLUMNS => [‘info:name‘, ‘data:pic‘]}
查询user表中列族为info、列标示符为name的信息
scan ‘user‘, {COLUMNS => ‘info:name‘}
查询user表中列族为info、列标示符为name的信息,而且版本号最新的5个
scan ‘user‘, {COLUMNS => ‘info:name‘, VERSIONS => 5}
查询user表中列族为info和data且列标示符中含有a字符的信息
scan ‘people‘, {COLUMNS => [‘info‘, ‘data‘], FILTER => "(QualifierFilter(=,‘substring:a‘))"}
查询user表中列族为info。rk范围是[rk0001, rk0003)的数据
scan ‘people‘, {COLUMNS => ‘info‘, STARTROW => ‘rk0001‘, ENDROW => ‘rk0003‘}
查询user表中row key以rk字符开头的
scan ‘user‘,{FILTER=>"PrefixFilter(‘rk‘)"}
查询user表中指定范围的数据
scan ‘user‘, {TIMERANGE => [1392368783980, 1392380169184]}
7. 删除表中数据：
删除user表row key为rk0001，列标示符为info:name的数据
delete ‘people‘, ‘rk0001‘, ‘info:name‘
删除user表row key为rk0001，列标示符为info:name。timestamp为1392383705316的数据
delete ‘user‘, ‘rk0001‘, ‘info:name‘, 1392383705316
清空user表中的数据
truncate ‘people‘
8. 其它操作
改动表结构：
首先停用user表（新版本号不用）
disable ‘user‘
加入两个列族f1和f2
alter ‘people‘, NAME => ‘f1‘
alter ‘user‘, NAME => ‘f2‘
启用表enable ‘user‘
###disable ‘user‘(新版本号不用)
删除一个列族：
alter ‘user‘, NAME => ‘f1‘, METHOD => ‘delete‘ 或 alter ‘user‘, ‘delete‘ => ‘f1‘
加入列族f1同一时候删除列族f2
alter ‘user‘, {NAME => ‘f1‘}, {NAME => ‘f2‘, METHOD => ‘delete‘}
将user表的f1列族版本改为5
alter ‘people‘, NAME => ‘info‘, VERSIONS => 5
启用表
enable ‘user‘
删除表
disable ‘user‘
drop ‘user‘
二. java接口
public class HbaseDemo {
private Configuration conf = null;
@Before
public void init(){
conf = HBaseConfiguration.create();
conf.set("hbase.zookeeper.quorum", "hadoop01,hadoop02,hadoop03");
}
@Test
public void testDrop() throws Exception{
HBaseAdmin admin = new HBaseAdmin(conf);
admin.disableTable("account");
admin.deleteTable("account");
admin.close();
}
@Test
public void testPut() throws Exception{
HTable table = new HTable(conf, "user");
Put put = new Put(Bytes.toBytes("rk0003"));
put.add(Bytes.toBytes("info"), Bytes.toBytes("name"), Bytes.toBytes("liuyan"));
table.put(put);
table.close();
}
@Test
public void testGet() throws Exception{
HTable table = new HTable(conf, "user");
Get get = new Get(Bytes.toBytes("rk0001"));
get.setMaxVersions(5);
Result result = table.get(get);
for(KeyValue kv : result.list()){
String family = new String(kv.getFamily());
String qualifier = new String(kv.getQualifier());
String value = new String(kv.getValue());
System.out.println("family: " + ", qualifier: " + qualifier + ", value: " + value);
}
table.close();
}
@Test
public void testScan() throws Exception{
HTablePool pool = new HTablePool(conf, 10);
HTableInterface table = pool.getTable("user");
Scan scan = new Scan(Bytes.toBytes("rk0001"), Bytes.toBytes("rk0002"));
scan.addFamily(Bytes.toBytes("info"));
ResultScanner scanner = table.getScanner(scan);
for(Result r : scanner){
byte[] value = r.getValue(Bytes.toBytes("info"), Bytes.toBytes("name"));
System.out.println(new String(value));
}
pool.close();
}
@Test
public void testDel() throws Exception{
HTable table = new HTable(conf, "user");
Delete del = new Delete(Bytes.toBytes("rk0001"));
del.deleteColumn(Bytes.toBytes("data"), Bytes.toBytes("pic"));
table.delete(del);
table.close();
}
}
