专栏首页LhWorld哥陪你聊算法HBase篇--HBase操作Api和Java操作Hbase相关Api

HBase篇--HBase操作Api和Java操作Hbase相关Api

一.前述。

Hbase shell启动命令窗口,然后再Hbase shell中对应的api命令如下。

二.说明

Hbase shell中删除键是空格+Ctrl键。

三.代码

1.封装所有的API

package com.sxt.hbase;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.CellUtil;
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.TableName;
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.HConnection;
import org.apache.hadoop.hbase.client.HConnectionManager;
import org.apache.hadoop.hbase.client.HTable;
import org.apache.hadoop.hbase.client.HTableInterface;
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.BinaryComparator;
import org.apache.hadoop.hbase.filter.CompareFilter.CompareOp;
import org.apache.hadoop.hbase.filter.Filter;
import org.apache.hadoop.hbase.filter.FilterList;
import org.apache.hadoop.hbase.filter.PrefixFilter;
import org.apache.hadoop.hbase.filter.RowFilter;
import org.apache.hadoop.hbase.filter.SingleColumnValueFilter;
import org.apache.hadoop.hbase.filter.SubstringComparator;
import org.apache.hadoop.hbase.util.Bytes;
import org.junit.Test;


public class HBaseDAOImp {

    HConnection hTablePool = null;
    static Configuration conf =null;
    public HBaseDAOImp()
    {
         conf = new Configuration();
        String zk_list = "node1,node2,node3";//只指定zookeeper集群即可,因为在zookeeper中存贮所有Region的寻址入口,而客户端只需要知道需要存储的具体位置后,
 //即可请求对应的regionServer上去写入数据。
        conf.set("hbase.zookeeper.quorum", zk_list);
        try {
            hTablePool = HConnectionManager.createConnection(conf) ;//申请一个HTablePool可以解决HTable存在的线程不安全问题,
  // 同时通过维护固定数量的HTable对象,能够在程序运行期间复用这些HTable资源对象
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public void save(Put put, String tableName) {
        // TODO Auto-generated method stub
        HTableInterface table = null;
        try {
            table = hTablePool.getTable(tableName) ;
            table.put(put) ;
            
        } catch (Exception e) {
            e.printStackTrace() ;
        }finally{
            try {
                table.close() ;
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    
    /**
     * 插入一个cell
     * @param tableName
     * @param rowKey
     * @param family
     * @param quailifer
     * @param value
     */
    public void insert(String tableName, String rowKey, String family,
            String quailifer, String value) {
        // TODO Auto-generated method stub
        HTableInterface table = null;
        try {
            table = hTablePool.getTable(tableName) ;//针对哪张表操作
            Put put = new Put(rowKey.getBytes());//增添数据通过Put对象操作,添加一条rowkey
            put.add(family.getBytes(), quailifer.getBytes(), value.getBytes()) ;//添加哪个列族,列,value值。
            table.put(put);//放置到hbase的对象中去。
        } catch (Exception e) {
            e.printStackTrace();
        }finally
        {
            try {
                table.close() ;
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    
    /**
     * 在一个列族下插入多个单元格
     * @param tableName
     * @param rowKey
     * @param family
     * @param quailifer
     * @param value
     */
    public void insert(String tableName,String rowKey,String family,String quailifer[],String value[])
    {
        HTableInterface table = null;
        try {
            table = hTablePool.getTable(tableName) ;
            Put put = new Put(rowKey.getBytes());
            // 批量添加
            for (int i = 0; i < quailifer.length; i++) {
                String col = quailifer[i];
                String val = value[i];
                put.add(family.getBytes(), col.getBytes(), val.getBytes());
            }
            table.put(put);
        } catch (Exception e) {
            e.printStackTrace();
        }finally
        {
            try {
                table.close() ;
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    public void save(List<Put> Put, String tableName) {
        // TODO Auto-generated method stub
        HTableInterface table = null;
        try {
            table = hTablePool.getTable(tableName) ;
            table.put(Put) ;
        }
        catch (Exception e) {
            // TODO: handle exception
        }finally
        {
            try {
                table.close() ;
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        
    }


    public Result getOneRow(String tableName, String rowKey) {
        // TODO Auto-generated method stub
        HTableInterface table = null;
        Result rsResult = null;
        try {
            table = hTablePool.getTable(tableName) ;
            Get get = new Get(rowKey.getBytes()) ;/通过get获取一条数据
            rsResult = table.get(get) ;//返回一个result对象
        } catch (Exception e) {
            e.printStackTrace() ;
        }
        finally
        {
            try {
                table.close() ;
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return rsResult;
    }
    
    /**
     * 最常用的方法,优化查询
     * 查询一行数据,
     * @param tableName
     * @param rowKey
     * @param cols
     * @return
     */
    public Result getOneRowAndMultiColumn(String tableName, String rowKey,String[] cols) {
        // TODO Auto-generated method stub
        HTableInterface table = null;
        Result rsResult = null;
        try {
            table = hTablePool.getTable(tableName) ;
            Get get = new Get(rowKey.getBytes()) ;
            for (int i = 0; i < cols.length; i++) {
                get.addColumn("cf".getBytes(), cols[i].getBytes()) ;
            }
            rsResult = table.get(get) ;
        } catch (Exception e) {
            e.printStackTrace() ;
        }
        finally
        {
            try {
                table.close() ;
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return rsResult;
    }

    
    public List<Result> getRows(String tableName, String rowKeyLike) {
        // TODO Auto-generated method stub
        HTableInterface table = null;
        List<Result> list = null;
        try {
            FilterList fl = new FilterList(FilterList.Operator.MUST_PASS_ALL);
            table = hTablePool.getTable(tableName) ;
            PrefixFilter filter = new PrefixFilter(rowKeyLike.getBytes());
            SingleColumnValueFilter filter1 = new SingleColumnValueFilter(
                      "order".getBytes(),
                      "order_type".getBytes(),
                      CompareOp.EQUAL,
                      Bytes.toBytes("1")
                      );
            fl.addFilter(filter);
            fl.addFilter(filter1);
            Scan scan = new Scan();
            scan.setFilter(fl);
            ResultScanner scanner = table.getScanner(scan) ;
            list = new ArrayList<Result>() ;
            for (Result rs : scanner) {
                list.add(rs) ;
            }
        } catch (Exception e) {
            e.printStackTrace() ;
        }
        finally
        {
            try {
                table.close() ;
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return list;
    }
    
    
    public List<Result> getRows(String tableName, String rowKeyLike ,String cols[]) {
        // TODO Auto-generated method stub
        HTableInterface table = null;
        List<Result> list = null;
        try {
            table = hTablePool.getTable(tableName) ;
            PrefixFilter filter = new PrefixFilter(rowKeyLike.getBytes());
            
            Scan scan = new Scan();
            for (int i = 0; i < cols.length; i++) {
                scan.addColumn("cf".getBytes(), cols[i].getBytes()) ;
            }
            scan.setFilter(filter);
            ResultScanner scanner = table.getScanner(scan) ;
            list = new ArrayList<Result>() ;
            for (Result rs : scanner) {
                list.add(rs) ;
            }
        } catch (Exception e) {
            e.printStackTrace() ;
        }
        finally
        {
            try {
                table.close() ;
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return list;
    }
    
    public List<Result> getRowsByOneKey(String tableName, String rowKeyLike ,String cols[]) {
        // TODO Auto-generated method stub
        HTableInterface table = null;
        List<Result> list = null;
        try {
            table = hTablePool.getTable(tableName) ;
            PrefixFilter filter = new PrefixFilter(rowKeyLike.getBytes());
            
            Scan scan = new Scan();
            for (int i = 0; i < cols.length; i++) {
                scan.addColumn("cf".getBytes(), cols[i].getBytes()) ;
            }
            scan.setFilter(filter);
            ResultScanner scanner = table.getScanner(scan) ;
            list = new ArrayList<Result>() ;
            for (Result rs : scanner) {
                list.add(rs) ;
            }
        } catch (Exception e) {
            e.printStackTrace() ;
        }
        finally
        {
            try {
                table.close() ;
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return list;
    }
    
    /**
     * 范围查询
     * @param tableName
     * @param startRow
     * @param stopRow
     * @return
     */
    public List<Result> getRows(String tableName,String startRow,String stopRow)
    {
        HTableInterface table = null;
        List<Result> list = null;
        try {
            table = hTablePool.getTable(tableName) ;
            Scan scan = new Scan() ;
            scan.setStartRow(startRow.getBytes()) ;
            scan.setStopRow(stopRow.getBytes()) ;
            ResultScanner scanner = table.getScanner(scan) ;
            list = new ArrayList<Result>() ;
            for (Result rsResult : scanner) {
                list.add(rsResult) ;
            }
            
        }catch (Exception e) {
            e.printStackTrace() ;
        }
        finally
        {
            try {
                table.close() ;
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return list;
    }
    
    
    public void deleteRecords(String tableName, String rowKeyLike){
        HTableInterface table = null;
        try {
            table = hTablePool.getTable(tableName) ;
            PrefixFilter filter = new PrefixFilter(rowKeyLike.getBytes());
            Scan scan = new Scan();
            scan.setFilter(filter);
            ResultScanner scanner = table.getScanner(scan) ;
            List<Delete> list = new ArrayList<Delete>() ;
            for (Result rs : scanner) {
                Delete del = new Delete(rs.getRow());
                list.add(del) ;
            }
            table.delete(list);
        }
        catch (Exception e) {
            e.printStackTrace() ;
        }
        finally
        {
            try {
                table.close() ;
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        
    }
    
    public void deleteCell(String tableName, String rowkey,String cf,String column){
        HTableInterface table = null;
        try {
            table = hTablePool.getTable(tableName) ;
            Delete del = new Delete(rowkey.getBytes());
            del.deleteColumn(cf.getBytes(), column.getBytes());
            table.delete(del);
        }
        catch (Exception e) {
            e.printStackTrace() ;
        }
        finally
        {
            try {
                table.close() ;
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        
    }
    
    public   void createTable(String tableName, String[] columnFamilys){
        try {
            // admin 对象
            HBaseAdmin admin = new HBaseAdmin(conf);
            if (admin.tableExists(tableName)) {
                System.err.println("此表,已存在!");
            } else {
                HTableDescriptor tableDesc = new HTableDescriptor(
                        TableName.valueOf(tableName));

                for (String columnFamily : columnFamilys) {
                    tableDesc.addFamily(new HColumnDescriptor(columnFamily));
                }

                admin.createTable(tableDesc);
                System.err.println("建表成功!");

            }
            admin.close();// 关闭释放资源
        } catch (MasterNotRunningException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (ZooKeeperConnectionException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

    }

    /**
     * 删除一个表
     * 
     * @param tableName
     *            删除的表名
     * */
    public   void deleteTable(String tableName)   {
        try {
            HBaseAdmin admin = new HBaseAdmin(conf);
            if (admin.tableExists(tableName)) {
                admin.disableTable(tableName);// 禁用表
                admin.deleteTable(tableName);// 删除表
                System.err.println("删除表成功!");
            } else {
                System.err.println("删除的表不存在!");
            }
            admin.close();
        } catch (MasterNotRunningException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (ZooKeeperConnectionException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
 
    /**
     * 查询表中所有行
     * @param tablename
    */
    public void scaner(String tablename) {
    try {
            HTable table =new HTable(conf, tablename);
            Scan s =new Scan();
//            s.addColumn(family, qualifier)
//            s.addColumn(family, qualifier)
            ResultScanner rs = table.getScanner(s);
    for (Result r : rs) {
                
           for(Cell cell:r.rawCells()){   
                System.out.println("RowName:"+new String(CellUtil.cloneRow(cell))+" ");
                System.out.println("Timetamp:"+cell.getTimestamp()+" ");
                System.out.println("column Family:"+new String(CellUtil.cloneFamily(cell))+" ");
                System.out.println("row Name:"+new String(CellUtil.cloneQualifier(cell))+" ");
                System.out.println("value:"+new String(CellUtil.cloneValue(cell))+" ");
               }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public void scanerByColumn(String tablename) {
        
        try {
            HTable table =new HTable(conf, tablename);
            Scan s =new Scan();
            s.addColumn("cf".getBytes(), "201504052237".getBytes());
            s.addColumn("cf".getBytes(), "201504052237".getBytes());
            ResultScanner rs = table.getScanner(s);
            for (Result r : rs) {
                
                for(Cell cell:r.rawCells()){   
                    System.out.println("RowName:"+new String(CellUtil.cloneRow(cell))+" ");
                    System.out.println("Timetamp:"+cell.getTimestamp()+" ");
                    System.out.println("column Family:"+new String(CellUtil.cloneFamily(cell))+" ");
                    System.out.println("row Name:"+new String(CellUtil.cloneQualifier(cell))+" ");
                    System.out.println("value:"+new String(CellUtil.cloneValue(cell))+" ");
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public static void main(String[] args) {
        

        
        
//        创建表
//        String tableName="test";
//        String cfs[] = {"cf"};
//        dao.createTable(tableName,cfs);
        
//        存入一条数据
//        Put put = new Put("bjsxt".getBytes());
//        put.add("cf".getBytes(), "name".getBytes(), "cai10".getBytes()) ;
//        dao.save(put, "test") ;

//        插入多列数据
//        Put put = new Put("bjsxt".getBytes());
//        List<Put> list = new ArrayList<Put>();
//        put.add("cf".getBytes(), "addr".getBytes(), "shanghai1".getBytes()) ;
//        put.add("cf".getBytes(), "age".getBytes(), "30".getBytes()) ;
//        put.add("cf".getBytes(), "tel".getBytes(), "13889891818".getBytes()) ;
//        list.add(put) ;
//        dao.save(list, "test");
        
//        插入单行数据
//        dao.insert("test", "testrow", "cf", "age", "35") ;
//        dao.insert("test", "testrow", "cf", "cardid", "12312312335") ;
//        dao.insert("test", "testrow", "cf", "tel", "13512312345") ;
        
        
        
//        List<Result> list = dao.getRows("test", "testrow",new String[]{"age"}) ;
//        for(Result rs : list)
//        {
//            for(Cell cell:rs.rawCells()){   
//                System.out.println("RowName:"+new String(CellUtil.cloneRow(cell))+" ");
//                System.out.println("Timetamp:"+cell.getTimestamp()+" ");
//                System.out.println("column Family:"+new String(CellUtil.cloneFamily(cell))+" ");
//                System.out.println("row Name:"+new String(CellUtil.cloneQualifier(cell))+" ");
//                System.out.println("value:"+new String(CellUtil.cloneValue(cell))+" ");
//               }
//        }
        
//        Result rs = dao.getOneRow("test", "testrow");
//         System.out.println(new String(rs.getValue("cf".getBytes(), "age".getBytes())));
        
//        Result rs = dao.getOneRowAndMultiColumn("cell_monitor_table", "29448-513332015-04-05", new String[]{"201504052236","201504052237"});
//        for(Cell cell:rs.rawCells()){   
//            System.out.println("RowName:"+new String(CellUtil.cloneRow(cell))+" ");
//            System.out.println("Timetamp:"+cell.getTimestamp()+" ");
//            System.out.println("column Family:"+new String(CellUtil.cloneFamily(cell))+" ");
//            System.out.println("row Name:"+new String(CellUtil.cloneQualifier(cell))+" ");
//            System.out.println("value:"+new String(CellUtil.cloneValue(cell))+" ");
//           }
        
//        dao.deleteTable("cell_monitor_table");
//        创建表
        String tableName="cell_monitor_table";
        String cfs[] = {"cf"};
//        dao.createTable(tableName,cfs);
    }
    
    
      public static void testRowFilter(String tableName){
             try {
                  HTable table =new HTable(conf, tableName);
                Scan scan = new Scan();
                scan.addColumn(Bytes.toBytes("column1"),Bytes.toBytes("qqqq"));
                Filter filter1 = new RowFilter(CompareOp.LESS_OR_EQUAL,new BinaryComparator(Bytes.toBytes("laoxia157")));
                scan.setFilter(filter1);
                ResultScanner scanner1 = table.getScanner(scan);
                for (Result res : scanner1) {
                    System.out.println(res);
                }
                scanner1.close();

//             
//                Filter filter2 = new RowFilter(CompareFilter.CompareOp.EQUAL,new RegexStringComparator("laoxia4\\d{2}"));
//                scan.setFilter(filter2);
//                ResultScanner scanner2 = table.getScanner(scan);
//                for (Result res : scanner2) {
//                     System.out.println(res);
//                }
//                scanner2.close();

                Filter filter3 = new RowFilter( CompareOp.EQUAL,new SubstringComparator("laoxia407"));
                scan.setFilter(filter3);
                ResultScanner scanner3 = table.getScanner(scan);
                for (Result res : scanner3) {
                      System.out.println(res);
                }
                scanner3.close();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
        
      @Test
      public void testTrasaction(){
          try{
              HTableInterface table = null;
              table = hTablePool.getTable("t_test".getBytes());
//              Put put1 =new Put("002".getBytes());
//              put1.add("cf1".getBytes(), "name".getBytes(), "王五".getBytes());
//              table.put(put1);
              Put newput =new Put("001".getBytes());
              newput.add("cf1".getBytes(), "like".getBytes(), "看书".getBytes());
              
              boolean f= table.checkAndPut("001".getBytes(), "cf1".getBytes(), "age".getBytes(), "24".getBytes(), newput);
              System.out.println(f);
              
          }catch (Exception e){
              e.printStackTrace();
          }
          
      }
}

 2.原始Api

package com.sxt.hbase;

import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.CellUtil;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.TableName;
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;
import org.apache.hadoop.hbase.filter.CompareFilter.CompareOp;
import org.apache.hadoop.hbase.filter.FilterList;
import org.apache.hadoop.hbase.filter.PrefixFilter;
import org.apache.hadoop.hbase.filter.SingleColumnValueFilter;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

public class HBaseDemo {

    Configuration conf;
    HBaseAdmin admin;
    HTable htable;
    byte[] family = "cf".getBytes();
    
    // 1、删除 cell??
    // 2、表设计
    
    
    String TN = "phone";
    
    @Before
    public void begin() throws Exception {
        conf = new Configuration();
        
        // 分布式hbase  zk列表指定zk集群
        conf.set("hbase.zookeeper.quorum", "node05");
        
        admin = new HBaseAdmin(conf);//通过admin对象操作DDL语言
        htable = new HTable(conf, TN);//通过Htable对象操作表DML语言
    }
    
    @After
    public void end() throws Exception {
        if(admin != null) {
            admin.close();
        }
        if(htable != null) {
            htable.close();
        }
    }

    @Test
    public void createTbl() throws Exception {
        if(admin.tableExists(TN)) {
            admin.disableTable(TN);
            admin.deleteTable(TN);
        }
        
        HTableDescriptor desc = new HTableDescriptor(TableName.valueOf(TN));//表的描述

        HColumnDescriptor cf = new HColumnDescriptor("cf");
        cf.setInMemory(true);//设置读缓存
        cf.setMaxVersions(1);
        
        desc.addFamily(cf);//创建表的时候必须制定列族,相当于一个DDL语言描述。
        
        admin.createTable(desc);
    }
    
    @Test
    public void insertDB1() throws Exception {
        String rowkey = "123";
        
        Put put = new Put(rowkey.getBytes());
        put.add("cf".getBytes(), "name".getBytes(), "xiaoming".getBytes());
        put.add("cf".getBytes(), "sex".getBytes(), "man".getBytes());
        
        htable.put(put);
    }
    
    @Test
    public void getDB1() throws Exception {
        String rowkey = "123";
        Get get = new Get(rowkey.getBytes());
        get.addColumn("cf".getBytes(), "name".getBytes());
        
        Result rs = htable.get(get);
        Cell cell = rs.getColumnLatestCell("cf".getBytes(), "name".getBytes());//result返回的是一个Cell对象
        
        System.out.println(new String(CellUtil.cloneValue(cell)));//取出Cell对象中的值
    }
    
    /**
     * 通话详单 
     * 包含:手机号,对方手机号,日期,通话时长,主叫被叫类型...
     * 
     * Rowkey设计:手机号_(Long.Max-时间戳)
     * 
     * 1、查询某个月份 的  所有的通话详单  时间降序
     * 
     * 2、查询某个手机号   所有主叫类型   通话记录
     * @throws Exception
     */
    
    HTools t = new HTools();
    
    Random r = new Random();

    SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");
    
    /**
     * 生成测试数据
     * 
     * 十个用户 产生一百条通话记录 
     */
    @Test
    public void insertDB2() throws Exception {
        
        
        List<Put> puts = new ArrayList<Put>();
        
        for (int i = 0; i < 10; i++) {
            String pnum = t.getPhoneNum("186");
            
            for (int j = 0; j < 100; j++) {
                String dnum = t.getPhoneNum("177");
                String datestr = t.getDate("2018");
                String length = r.nextInt(99) + "";
                String type = r.nextInt(2) + "";
                
                String rowkey = pnum + "_" + (Long.MAX_VALUE-sdf.parse(datestr).getTime());//默认Hbase是按照row_key的字典升序排列,此处降序。
                
                Put put = new Put(rowkey.getBytes());

                put.add(family, "dnum".getBytes(), dnum.getBytes());
                put.add(family, "date".getBytes(), datestr.getBytes());
                put.add(family, "length".getBytes(), length.getBytes());
                put.add(family, "type".getBytes(), type.getBytes());
                
                puts.add(put);
            }
        }
        
        htable.put(puts);
    }
    
    /**
     * 查询某个手机号  某个月份所有的通话记录
     * 范围
     * @throws Exception
     */
    @Test
    public void scanDB1() throws Exception {
        Scan scan = new Scan();
        
        String pnum = "18692739289_";

        String startRowkey = pnum + (Long.MAX_VALUE-sdf.parse("20181001000000").getTime());
        String stopRowkey = pnum + (Long.MAX_VALUE-sdf.parse("20180901000000").getTime());
        
        scan.setStartRow(startRowkey.getBytes());
        scan.setStopRow(stopRowkey.getBytes());//scan操作设置起始和结束的rowkey
        
        ResultScanner rss = htable.getScanner(scan);//返回一个Result集合。
        for (Result rs : rss) {//遍历Result集合
            System.out.print(new String(CellUtil.cloneValue(rs.getColumnLatestCell(family, "dnum".getBytes()))));//得到一条条数据。
            System.out.print(" - " + new String(CellUtil.cloneValue(rs.getColumnLatestCell(family, "date".getBytes()))));
            System.out.print(" - " + new String(CellUtil.cloneValue(rs.getColumnLatestCell(family, "type".getBytes()))));
            System.out.println(" - " + new String(CellUtil.cloneValue(rs.getColumnLatestCell(family, "length".getBytes()))));
        }
    }
    
    /**
     * 查询某个手机号  所有的主叫type=1
     * 过滤器
     * @throws Exception 
     */
    @Test
    public void scanDB2() throws Exception {
        Scan scan = new Scan();
        
        FilterList list = new FilterList(FilterList.Operator.MUST_PASS_ALL);//定义多个过滤器,必须全部筛选
        
        PrefixFilter filter1 = new PrefixFilter("18692739289".getBytes());//前缀过滤器,先返回所有以这个判定条件的rowkey
        list.addFilter(filter1);
        
        SingleColumnValueFilter filter2 = new SingleColumnValueFilter(family, //列值过滤器,因为是两个查询条件,所以需要两个过滤器
                "type".getBytes(), CompareOp.EQUAL, "1".getBytes()); //判断所有type等于1的值
        
        list.addFilter(filter2);//加第二个过滤器
        
        scan.setFilter(list);
        
        ResultScanner rss = htable.getScanner(scan);
        for (Result rs : rss) {
            System.out.print(new String(CellUtil.cloneValue(rs.getColumnLatestCell(family, "dnum".getBytes()))));
            System.out.print(" - " + new String(CellUtil.cloneValue(rs.getColumnLatestCell(family, "date".getBytes()))));
            System.out.print(" - " + new String(CellUtil.cloneValue(rs.getColumnLatestCell(family, "type".getBytes()))));
            System.out.println(" - " + new String(CellUtil.cloneValue(rs.getColumnLatestCell(family, "length".getBytes()))));
        }
        
    }
    
}

 解析:

1.

String rowkey = pnum + "_" + (Long.MAX_VALUE-sdf.parse(datestr).getTime());//默认Hbase是按照row_key的字典升序排列,此处降序。时间戳越来越大,则此数越来越小,达到按照时间降序的结果。

2.过滤器介绍

FilterList代表一个过滤器列表
        FilterList.Operator.MUST_PASS_ALL --> 取交集 相当一and操作
        FilterList.Operator.MUST_PASS_ONE --> 取并集 相当于or 操作
        FilterList list = new FilterList(FilterList.Operator.MUST_PASS_ONE);
        2、SingleColumnValueFilter 列值过滤器
        ColumnPrefixFilter用于指定列名前缀值相等
        MultipleColumnPrefixFilter和ColumnPrefixFilter行为差不多,但可以指定多个前缀。
        QualifierFilter是基于列名的过滤器。
        2、RowFilter 行过滤器
        RegexStringComparator是支持正则表达式的比较器。
        SubstringComparator用于检测一个子串是否存在于值中,大小写不敏感。

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