package com.bfd.test; import java.io.IOException; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import org.apache.commons.lang.math.NumberUtils; 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.KeyValue; import org.apache.hadoop.hbase.MasterNotRunningException; 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.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.CompareFilter.CompareOp; import org.apache.hadoop.hbase.filter.Filter; import org.apache.hadoop.hbase.filter.FilterList; import org.apache.hadoop.hbase.filter.PageFilter; import org.apache.hadoop.hbase.filter.RegexStringComparator; import org.apache.hadoop.hbase.filter.RowFilter; import org.apache.hadoop.hbase.filter.SingleColumnValueFilter; import org.apache.hadoop.hbase.util.Bytes; public class HbaseTest { public static Configuration configuration; /** * a.配置host, 例如:bfdbjc2 192.168.11.72 * b.参考:hbase-site.xml: ** hbase.zookeeper.quorum *bfdbjc2,bfdbjc3,bfdbjc4 **/ static { configuration = HBaseConfiguration.create(); //String ZOOKEEPER_QUORAM = "zk-1:2181,zk-2:2181,zk-3:2181,zk-4:2181,zk-5:2181,zk-6:2181"; configuration.set("hbase.zookeeper.quorum","bfdbjc2:2181,bfdbjc3:2181,bfdbjc4:2181"); configuration.set("hbase.rootdir", "hdfs://bfdbjc1:12000/hbase"); } public static void main(String[] args) throws Exception { // createTable("gangliang13"); //insertData("gangliang13"); //deleteRow("gangliang13", "112"); //queryAllLimit("gangliang13",2); //queryByRowKey("GidCross","0100020a000056c100004e374e267993"); //queryByColumn("gangliang13","aaa1"); //testLikeQuery("gangliang13","11"); //queryByManyColumn("gangliang13"); //queryAll("gangliang13"); //System.out.println("input GidCross rawkey:"+args[0]); //queryByRowKey("GidCross", "0100020a000056c100004e374e267993"); //testScanByTimeStamp("ganglia2",1367984937372L); deleteColumnData("t12","111","f1","",1371107067100L); } /** * 如果存在要创建的表,那么先删除,再创建 * @param tableName */ public static void createTable(String tableName) { System.out.println("start create table ......"); try { HBaseAdmin hBaseAdmin = new HBaseAdmin(configuration); if (hBaseAdmin.tableExists(tableName)) { hBaseAdmin.disableTable(tableName); hBaseAdmin.deleteTable(tableName); System.out.println(tableName + " is exist,detele...."); } HTableDescriptor tableDescriptor = new HTableDescriptor(tableName); tableDescriptor.addFamily(new HColumnDescriptor("name")); tableDescriptor.addFamily(new HColumnDescriptor("age")); tableDescriptor.addFamily(new HColumnDescriptor("sex")); hBaseAdmin.createTable(tableDescriptor); } catch (MasterNotRunningException e) { e.printStackTrace(); } catch (ZooKeeperConnectionException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } System.out.println("end create table ......"); } /** * 插入数据 * @param tableName */ public static void insertData(String tableName) { System.out.println("start insert data ......"); HTablePool pool = new HTablePool(configuration, 1000); HTableInterface table = pool.getTable(tableName); Put put = new Put("111".getBytes());// 一个PUT代表一行数据,再NEW一个PUT表示第二行数据,每行一个唯一的ROWKEY,此处rowkey为put构造方法中传入的值 put.add("name".getBytes(), null, "aaa1".getBytes());// 本行数据的第一列 put.add("age".getBytes(), null, "bbb1".getBytes());// 本行数据的第三列 put.add("sex".getBytes(), null, "ccc1".getBytes());// 本行数据的第三列 Put put2 = new Put("222".getBytes());// 一个PUT代表一行数据,再NEW一个PUT表示第二行数据,每行一个唯一的ROWKEY,此处rowkey为put构造方法中传入的值 put2.add("name".getBytes(), null, "aaa2".getBytes());// 本行数据的第一列 put2.add("name".getBytes(), "nickname".getBytes(), "aaabbbbbnick".getBytes()); put2.add("age".getBytes(), null, "bbb2".getBytes());// 本行数据的第三列 put2.add("sex".getBytes(), null, "ccc2".getBytes());// 本行数据的第三列 try { table.put(put); table.put(put2); } catch (IOException e) { e.printStackTrace(); } System.out.println("end insert data ......"); } /** * * @param tableName 取前面limit条 */ public static void queryAllLimit(String tableName,int limit) { HTablePool pool = new HTablePool(configuration, 1000); HTableInterface table = pool.getTable(tableName); try { Scan scan = new Scan(); scan.setCaching(1); Filter filter = new PageFilter(limit); scan.setFilter(filter); ResultScanner scanner = table.getScanner(scan);// 执行扫描查找 int num = 0; Iterator hbase.rootdir *hdfs://bfdbjc1:12000/hbase *res = scanner.iterator();// 返回查询遍历器 while (res.hasNext()) { Result result = res.next(); table.setWriteBufferSize(1024*1024*1); KeyValue[] kv = result.raw(); for (int i = 0; i < kv.length; i++) { System.out.print(new String(kv[i].getRow()) + " "); System.out.print(new String(kv[i].getFamily()) + ":"); System.out.print(new String(kv[i].getQualifier()) + " "); System.out.print(kv[i].getTimestamp() + " "); System.out.println(new String(kv[i].getValue())); } } } catch (IOException e) { e.printStackTrace(); } } public static void testScanByTimeStamp(String tablename,Long timestamp) throws IOException{ //Scan类常用方法说明 //指定需要的family或column ,如果没有调用任何addFamily或Column,会返回所有的columns; // scan.addFamily(); // scan.addColumn(); // scan.setMaxVersions(); //指定最大的版本个数。如果不带任何参数调用setMaxVersions,表示取所有的版本。如果不掉用setMaxVersions,只会取到最新的版本. // scan.setTimeRange(); //指定最大的时间戳和最小的时间戳,只有在此范围内的cell才能被获取. // scan.setTimeStamp(); //指定时间戳 // scan.setFilter(); //指定Filter来过滤掉不需要的信息 // scan.setStartRow(); //指定开始的行。如果不调用,则从表头开始; // scan.setStopRow(); //指定结束的行(不含此行); // scan.setBatch(); //指定最多返回的Cell数目。用于防止一行中有过多的数据,导致OutofMemory错误。 //过滤器 //1、FilterList代表一个过滤器列表 //FilterList.Operator.MUST_PASS_ALL -->and //FilterList.Operator.MUST_PASS_ONE -->or //eg、FilterList list = new FilterList(FilterList.Operator.MUST_PASS_ONE); //2、SingleColumnValueFilter //3、ColumnPrefixFilter用于指定列名前缀值相等 //4、MultipleColumnPrefixFilter和ColumnPrefixFilter行为差不多,但可以指定多个前缀。 //5、QualifierFilter是基于列名的过滤器。 //6、RowFilter //7、RegexStringComparator是支持正则表达式的比较器。 //8、SubstringComparator用于检测一个子串是否存在于值中,大小写不敏感。 HTablePool pool = new HTablePool(configuration, 1000); HTableInterface table = pool.getTable(tablename); Scan scan = new Scan(); scan.setTimeStamp(timestamp); //scan.setTimeRange(NumberUtils.toLong("1370336286283"), NumberUtils.toLong("1370336337163")); //scan.setStartRow(Bytes.toBytes("quanzhou")); //scan.setStopRow(Bytes.toBytes("xiamen")); //scan.addFamily(Bytes.toBytes("info")); //scan.addColumn(Bytes.toBytes("info"), Bytes.toBytes("id")); //查询列镞为info,列id值为1的记录 //方法一(单个查询) // Filter filter = new SingleColumnValueFilter( // Bytes.toBytes("info"), Bytes.toBytes("id"), CompareOp.EQUAL, Bytes.toBytes("1")); // scan.setFilter(filter); //方法二(组合查询) //FilterList filterList=new FilterList(); //Filter filter = new SingleColumnValueFilter( // Bytes.toBytes("info"), Bytes.toBytes("id"), CompareOp.EQUAL, Bytes.toBytes("1")); //filterList.addFilter(filter); //scan.setFilter(filterList); ResultScanner rs = table.getScanner(scan); for (Result r : rs) { for (KeyValue kv : r.raw()) { System.out.println(String.format("row:%s, family:%s, qualifier:%s, qualifiervalue:%s, timestamp:%s.", Bytes.toString(kv.getRow()), Bytes.toString(kv.getFamily()), Bytes.toString(kv.getQualifier()), Bytes.toString(kv.getValue()), kv.getTimestamp())); } } rs.close(); } /** * 对行key进行like查询 * @param table * @param likeQuery * @throws Exception */ public static void testLikeQuery(String table,String likeQuery) throws Exception { Scan scan = new Scan(); RegexStringComparator comp = new RegexStringComparator(likeQuery); RowFilter filter = new RowFilter(CompareOp.EQUAL, comp); scan.setFilter(filter); scan.setCaching(200); scan.setCacheBlocks(false); HTable hTable = new HTable(configuration, table); ResultScanner scanner = hTable.getScanner(scan); for (Result r : scanner) { KeyValue[] kv = r.raw(); for (int i = 0; i < kv.length; i++) { System.out.print(new String(kv[i].getRow()) + " "); System.out.print(new String(kv[i].getFamily()) + ":"); System.out.print(new String(kv[i].getQualifier()) + " "); System.out.print(kv[i].getTimestamp() + " "); System.out.println(new String(kv[i].getValue())); } } } /** * 查询表所有行 * @param tableName */ public static void queryAll(String tableName) { HTablePool pool = new HTablePool(configuration, 1000); HTableInterface table = pool.getTable(tableName); try { ResultScanner rs = table.getScanner(new Scan()); for (Result r : rs) { KeyValue[] kv = r.raw(); for (int i = 0; i < kv.length; i++) { System.out.print(new String(kv[i].getRow()) + " "); System.out.print(new String(kv[i].getFamily()) + ":"); System.out.print(new String(kv[i].getQualifier()) + " "); System.out.print(kv[i].getTimestamp() + " "); System.out.println(new String(kv[i].getValue())); } } } catch (IOException e) { e.printStackTrace(); } } /** * 根据行记录值删除 * @param tablename * @param rowkey */ public static void deleteRow(String tablename, String rowkey) { try { HTable table = new HTable(configuration, tablename); List list = new ArrayList (); Delete d1 = new Delete(rowkey.getBytes()); list.add(d1); table.delete(list); System.out.println("删除行成功!"); } catch (IOException e) { e.printStackTrace(); } } /** * 根据时间戳删除记录,删除后再put 时间戳不能比原来值小,创建表时,指定版本记录数 * @param tblName * @param rowKey * @param family * @param column * @param timestamp * @throws Exception */ public static void deleteColumnData(String tblName,String rowKey,String family,String column,long timestamp) throws Exception{ HTable htbl = new HTable(configuration,tblName); Delete dlt = new Delete(Bytes.toBytes(rowKey)); dlt.deleteColumn(Bytes.toBytes(family), Bytes.toBytes(column), timestamp); htbl.delete(dlt); htbl.flushCommits(); htbl.close(); } /** * 根据行记录索引 * @param tableName * @param row * @throws IOException */ public static void queryByRowKey(String tableName,String row) throws IOException { HTable table = new HTable(configuration, tableName); System.err.println(table.getRegionLocation(row.getBytes())); try { Get scan = new Get(row.getBytes());// 根据rowkey查询 Result r = table.get(scan); KeyValue[] kv = r.raw(); for (int i = 0; i < kv.length; i++) { // System.out.print(new String(kv[i].getRow()) + " "); //System.out.print(new String(kv[i].getFamily()) + ":"); System.out.print(new String(kv[i].getQualifier()) + " "); // System.out.print(kv[i].getTimestamp() + " "); System.out.println(new String(kv[i].getValue())); } } catch (IOException e) { e.printStackTrace(); } } /** * 按列查询,查询多条记录 * @param tableName */ public static void queryByColumn(String tableName,String columnValue) { try { HTable table = new HTable(configuration,tableName); Filter filter = new SingleColumnValueFilter(Bytes.toBytes("name"), null, CompareOp.EQUAL, Bytes.toBytes(columnValue)); // 当列column1的值为aaa时进行查询 Scan s = new Scan(); s.setFilter(filter); ResultScanner rs = table.getScanner(s); for (Result r : rs) { KeyValue[] kv = r.raw(); for (int i = 0; i < kv.length; i++) { System.out.print(new String(kv[i].getRow()) + " "); System.out.print(new String(kv[i].getFamily()) + ":"); System.out.print(new String(kv[i].getQualifier()) + " "); System.out.print(kv[i].getTimestamp() + " "); System.out.println(new String(kv[i].getValue())); } } } catch (Exception e) { e.printStackTrace(); } } /** * 按多列查询,查询多条记录 * @param tableName */ public static void queryByManyColumn(String tableName) { try { HTable table = new HTable(configuration,tableName); List filters = new ArrayList (); Filter filter1 = new SingleColumnValueFilter(Bytes .toBytes("age"), null, CompareOp.EQUAL, Bytes.toBytes("bbb1")); filters.add(filter1); Filter filter2 = new SingleColumnValueFilter(Bytes .toBytes("name"), null, CompareOp.EQUAL, Bytes.toBytes("aaa1")); filters.add(filter2); FilterList filterList1 = new FilterList(filters); Scan scan = new Scan(); scan.setFilter(filterList1); ResultScanner rs = table.getScanner(scan); for (Result r : rs) { KeyValue[] kv = r.raw(); for (int i = 0; i < kv.length; i++) { System.out.print(new String(kv[i].getRow()) + " "); System.out.print(new String(kv[i].getFamily()) + ":"); System.out.print(new String(kv[i].getQualifier()) + " "); System.out.print(kv[i].getTimestamp() + " "); System.out.println(new String(kv[i].getValue())); } } rs.close(); } catch (Exception e) { e.printStackTrace(); } } }