hbase基本操作

首先:            conf = HBaseConfiguration.create();            conf.set("hbase.zookeeper.property.clientPort", "2181");            conf.set("hbase.zookeeper.quorum", "集群地址");            conf.set("hbase.master", "地址+端口");            conn = HConnectionManager.createConnection(conf);            admin = new HBaseAdmin(conf);插入  Put (更新同理)------------------------------------------------------插入单条记录String tablename = "proreply";            String row = rowFixd;            String columnFamily = "data";            String[] columns = new String[] { "content", "rusername", "ctime" };            String[] values = new String[] { "回复内容:........", "lxk",                    DateFormatUtils.format(new Date(), "yyyy-mm-dd HH:mm:ss.ms") };            HTableInterface table = null;try {                table = conn.getTable(tablename);                Put put = new Put(Bytes.toBytes(row));                for (int i = 0; i < columns.length; i++) {                    put.add(Bytes.toBytes(columnFamily), Bytes.toBytes(String.valueOf(columns[i])),                            values[i] == null ? null : values[i].getBytes("utf-8"));                    table.put(put);                }                System.out.println("======插入记录完成======");插入多条记录//             table.setAutoFlush(false);//             table.setWriteBufferSize(6 * 1024 * 1024);            if (null != rowDatas && rowDatas.size() > 0) {                for (RowData rowData : rowDatas) {                    String row = rowData.getRow();                    String[] columns = rowData.getColumns();                    String columnFamily = rowData.getColumnFamily();                    String[] values = rowData.getValues();                    Put put = new Put(Bytes.toBytes(row));                    for (int i = 0; i < columns.length; i++) {                        put.add(Bytes.toBytes(columnFamily),                                Bytes.toBytes(String.valueOf(columns[i])),                                values[i] == null ? null : values[i]                                        .getBytes("utf-8"));                        put.setDurability(Durability.SKIP_WAL);                        table.put(put);//                         puts.add(put);                    }                }//                 table.put(puts);                // table.batch(puts);//                 table.flushCommits();删除-----------------------------------------------------------------------        HTableInterface htable = conn.getTable("reguser".getBytes());        Delete del = new Delete(Bytes.toBytes("chenzhenjian1448850414722"));        del.compareTo(del);        htable.delete(del);查询-----------------------------------------------------------------------查询所有记录    HTableInterface htable = conn.getTable("表名".getBytes());            Scan scan = new Scan();            ResultScanner scanner = htable.getScanner(scan);            for (Result result : scanner) {                byte[] row = result.getRow();                List<KeyValue> list = result.list();                for (KeyValue keyValue : list) {                    System.out.print("行键：" + new String(row));                    System.out.print("\t列簇:" + new String(keyValue.getFamily()));                    System.out.print("\t列名:" + new String(keyValue.getQualifier()));                    System.out.print("\t时间:" + keyValue.getTimestamp());                    System.out.println("\t列值:" + new String(keyValue.getValue()));                }            }查询一行记录Get g = new Get(rowKey.getBytes());Result rs = table.get(g);KeyValue[] raw = rs.raw();Map<String, String> result = new HashMap<String, String>();for (int i = 0; i < raw.length; i++) {                byte[] row = raw[i].getRow();                result.put("row", new String(row));                byte[] family = raw[i].getFamily();                byte[] qualifier = raw[i].getQualifier();                byte[] value = raw[i].getValue();                result.put(new String(family) + ":" + new String(qualifier),                        new String(value));            }            return result;查询过滤条件---------------------------------------------------------------------------提取rowkey以[prefix]前缀开头Filter filter=new RowFilter(CompareFilter.CompareOp.EQUAL, new BinaryPrefixComparator(prefix.getBytes()));Scan s=new Scan();        s.setFilter(filter);提取rowkey以[endfix]结尾Filter filter=new RowFilter(CompareFilter.CompareOp.EQUAL,  new RegexStringComparator(".*"+endfix+"$"));Scan s=new Scan();        s.setFilter(filter);提取rowkey以包含[value]Filter filter=new RowFilter(CompareFilter.CompareOp.EQUAL,  new SubstringComparator(value));Scan s=new Scan();        s.setFilter(filter);提取rowkey以[prefix]前缀开头、并且只包含rowkey、Filter filter1=new RowFilter(CompareFilter.CompareOp.EQUAL, new BinaryPrefixComparator(prefix.getBytes()));KeyOnlyFilter filter2=new KeyOnlyFilter();FilterList filtList =new FilterList(FilterList.Operator.MUST_PASS_ALL);filtList.addFilter(filter1);filtList.addFilter(filter2);Scan s=new Scan();        s.setFilter(filtList);分页提取10条：rowkey以[prefix]前缀开头、Filter filter1=new RowFilter(CompareFilter.CompareOp.EQUAL, new BinaryPrefixComparator(prefix.getBytes()));PageFilter filter2=new PageFilter(10);FilterList filtList =new FilterList(FilterList.Operator.MUST_PASS_ALL);filtList.addFilter(filter1);filtList.addFilter(filter2);Scan s=new Scan();s.setFilter(filtList);分页提取10条：仅获取data列族上某列上大于某时间戳的数据PageFilter filter=new PageFilter(10);Scan s=new Scan();s.addColumn("data".getBytes(), colmnName.getBytes());s.setFilter(filter);if(0!=minStamp)s.setTimeRange(minStamp, Long.MAX_VALUE);return s;分页提取10条：大于某时间戳的数据（针对所有列）PageFilter filter=new PageFilter(10);Scan s=new Scan();s.setFilter(filter);if(0!=minStamp)s.setTimeRange(minStamp, Long.MAX_VALUE);return s;