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(ListPut, 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 getRows(String tableName, String rowKeyLike) { // TODO Auto-generated method stub HTableInterface table = null; List 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 () ; 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 getRows(String tableName, String rowKeyLike ,String cols[]) { // TODO Auto-generated method stub HTableInterface table = null; List 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 () ; 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 getRowsByOneKey(String tableName, String rowKeyLike ,String cols[]) { // TODO Auto-generated method stub HTableInterface table = null; List 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 () ; 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 getRows(String tableName,String startRow,String stopRow) { HTableInterface table = null; List 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 () ; 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 list = new ArrayList () ; 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 list = new ArrayList // 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(); 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 { Listputs = new ArrayList (); 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。