根据rowkey进行get
1 Configuration conf = HBaseConfiguration.create(); //创建配置实例
2 HTable table = new HTable(conf,"EVENT_LOG_YZ"); //初始化一个新的表引用
3 Get get = new Get(Bytes.toBytes("nz-NE02967280231-1")); //使用一个指定的行键（即rowkey）构建一个get实例
4 get.addColumn(Bytes.toBytes("f1"), Bytes.toBytes("YZYT_msg_type")); //向get实例中添加一个列，f1是列族，YZYT_msg_type是列名
5 Result result = table.get(get); //从hbase中获取指定行的列数据
6 byte [] val = result.getValue(Bytes.toBytes("f1"), Bytes.toBytes("YZYT_msg_type")); //从返回的结果中获取对应列的数据
7 System.out.println(Bytes.toString(val)); //将数据转化为字符串打印输出
根据rowkey的前缀进行get，也相当于scan，较慢
1 Scan scan = new Scan();
2 scan.setFilter(new PrefixFilter(Bytes.toBytes(express_nbr)));
3 ResultScanner resultScanner = null;
4 HTableInterface eventLogTable = null;
5 List<String> phone_list = new ArrayList<String>();
6 try {
7 eventLogTable = hbaseHelper.getConnection().getTable("CDPOST_YZYT");
8 resultScanner = eventLogTable.getScanner(scan);
9 Iterator<Result> it = resultScanner.iterator();
10 while (it.hasNext()) {
11 Result result = it.next();
12 String[] phone_num = Bytes.toString(result.getRow()).split("-");
13 if (!phone_list.contains(phone_num[phone_num.length - 1])) {
14 phone_list.add(phone_num[phone_num.length - 1]);
15 }
16 }
17 } catch (IOException e) {
18 logger.error("消息处理异常", e);
19 } finally {
20 if (resultScanner != null) {
21 resultScanner.close();
22 }
23 if (eventLogTable != null) {
24 try {
25 eventLogTable.close();
26 } catch (IOException e) {
27 }
28 }
29 }
hbase的put操作
1 Configuration conf_hbase = HBaseConfiguration.create(); //创建所需的配置
2 HTable table_express = new HTable(conf_hbase , "EXPRESS_YZYT"); //实例化一个新的客户端
3 String cloumn1 = "TelephoneNbr";
4 String cloumn2 = "ExpressNbr";
5 String cloumn3 = "CardNum";
6 String cloumn4 = "ExpressType";
7
8 Put put_express = new Put(ExpressNum.getBytes()); //指定一行来创建一个put
9 put_express.add("f1".getBytes(), cloumn1.getBytes(),TelephoneNum.getBytes()); //向put中添加一个column1(TelephoneNbr)的列，列簇为f1
10 put_express.add("f1".getBytes(), cloumn3.getBytes(), CardNo.getBytes());
11 put_express.add("f1".getBytes(), cloumn4.getBytes(),ExpressType.getBytes());
12
13 table_express.put(put_express); //将这一行存储到hbase表中
//根据时间戳进行扫描过滤
1 Configuration conf = HBaseConfiguration.create();
2 HTable table = new HTable(conf,"EVENT_LOG_YZ");
3 Scan scan = new Scan();
4 scan.setTimeRange(NumberUtils.toLong("1466646234237"), NumberUtils.toLong("1466646529902"));
5
6 ResultScanner resultScanner = null;
7
8 try {
9
10 resultScanner = table.getScanner(scan);
11 Iterator<Result> it = resultScanner.iterator();
12 while (it.hasNext()) {
13 Result result = it.next();
14 String phone_num = Bytes.toString(result.getRow());
15 System.out.println(phone_num);
16 }
17 } catch (IOException e) {
18
19 } finally {
20 if (resultScanner != null) {
21 resultScanner.close();
22 }
23 if (table != null) {
24 try {
25 table.close();
26 } catch (IOException e) {
27 }
28 }
29 }