import java.io.IOException;    import java.util.ArrayList;    import java.util.List;      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.HConnection;  import org.apache.hadoop.hbase.client.HConnectionManager;  import org.apache.hadoop.hbase.client.HTable;    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.Filter;    import org.apache.hadoop.hbase.filter.FilterList;    import org.apache.hadoop.hbase.filter.SingleColumnValueFilter;    import org.apache.hadoop.hbase.filter.CompareFilter.CompareOp;    import org.apache.hadoop.hbase.util.Bytes;      /**   *   * @author create by khj   *   */  @SuppressWarnings("all")  public class OperHbaseUtil {          public static Configuration configuration;            private static HConnection conn = null;            static {             configuration = HBaseConfiguration.create();          configuration.set("hbase.zookeeper.property.clientPort", "2181");          configuration.set("hbase.zookeeper.quorum", "192.168.1.100");          try {              conn = HConnectionManager.createConnection(configuration);          } catch (IOException e) {              e.printStackTrace();          }      }          public static void main(String[] args) {           }          /**       * 创建表       * @param tableName       */              public static void createTable(String tableName) {            System.out.println("start create table ......");            try {                HBaseAdmin hBaseAdmin = new HBaseAdmin(configuration);                if (hBaseAdmin.tableExists(tableName)) {// 如果存在要创建的表，那么先删除，再创建                    hBaseAdmin.disableTable(tableName);                    hBaseAdmin.deleteTable(tableName);                    System.out.println(tableName + " is exist,detele....");                }                HTableDescriptor tableDescriptor = new HTableDescriptor(tableName);                tableDescriptor.addFamily(new HColumnDescriptor("column1"));                tableDescriptor.addFamily(new HColumnDescriptor("column2"));                tableDescriptor.addFamily(new HColumnDescriptor("column3"));                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);            HTable table = (HTable) pool.getTable(tableName);            Put put = new Put("112233bbbcccc".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("column1".getBytes(), null, "name".getBytes());// 本行数据的第一列            put.add("column2".getBytes(), null, "type".getBytes());// 本行数据的第三列            put.add("column3".getBytes(), null, "desc".getBytes());// 本行数据的第三列            try {                table.put(put);            } catch (IOException e) {                e.printStackTrace();            }            System.out.println("end insert data ......");        }          /**       * 删除一张表       * @param tableName       */        public static void dropTable(String tableName) {            try {                HBaseAdmin admin = new HBaseAdmin(configuration);                admin.disableTable(tableName);                admin.deleteTable(tableName);            } catch (MasterNotRunningException e) {                e.printStackTrace();            } catch (ZooKeeperConnectionException e) {                e.printStackTrace();            } catch (IOException e) {                e.printStackTrace();            }          }        /**       * 根据 rowkey删除一条记录       * @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();            }                      }           /**        * 组合条件删除        * @param tablename        * @param rowkey        */         public static void deleteByCondition(String tablename, String rowkey)  {                //目前还没有发现有效的API能够实现 根据非rowkey的条件删除 这个功能能，还有清空表全部数据的API操作          }            /**       * 查询所有数据       * @param tableName       */        public static void QueryAll(String tableName) {            HTablePool pool = new HTablePool(configuration, 1000);            HTable table = (HTable) pool.getTable(tableName);            try {                ResultScanner rs = table.getScanner(new Scan());                for (Result r : rs) {                    System.out.println("获得到rowkey:" + new String(r.getRow()));                    for (KeyValue keyValue : r.raw()) {                        System.out.println("列：" + new String(keyValue.getFamily())                                + "====值:" + new String(keyValue.getValue()));                    }                }            } catch (IOException e) {                e.printStackTrace();            }        }          /**       * 单条件查询,根据rowkey查询唯一一条记录       * @param tableName       */        public static void QueryByCondition1(String tableName) {              HTablePool pool = new HTablePool(configuration, 1000);            HTable table = (HTable) pool.getTable(tableName);            try {                Get scan = new Get("abcdef".getBytes());// 根据rowkey查询                Result r = table.get(scan);                System.out.println("获得到rowkey:" + new String(r.getRow()));                for (KeyValue keyValue : r.raw()) {                    System.out.println("列：" + new String(keyValue.getFamily())                            + "====值:" + new String(keyValue.getValue()));                }            } catch (IOException e) {                e.printStackTrace();            }        }          /**       * 单条件按查询，查询多条记录       * @param tableName       */        public static void QueryByCondition2(String tableName) {              try {                HTablePool pool = new HTablePool(configuration, 1000);                HTable table = (HTable) pool.getTable(tableName);                Filter filter = new SingleColumnValueFilter(Bytes                        .toBytes("column1"), null, CompareOp.EQUAL, Bytes                        .toBytes("name")); // 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) {                    System.out.println("获得到rowkey:" + new String(r.getRow()));                    for (KeyValue keyValue : r.raw()) {                        System.out.println("列：" + new String(keyValue.getFamily())                                + "====值:" + new String(keyValue.getValue()));                    }                }            } catch (Exception e) {                e.printStackTrace();            }          }          /**       * 组合条件查询       * @param tableName       */        public static void QueryByCondition3(String tableName) {              try {                HTablePool pool = new HTablePool(configuration, 1000);                HTable table = (HTable) pool.getTable(tableName);                  List<Filter> filters = new ArrayList<Filter>();                  Filter filter1 = new SingleColumnValueFilter(Bytes                        .toBytes("column1"), null, CompareOp.EQUAL, Bytes                        .toBytes("name"));                filters.add(filter1);                  Filter filter2 = new SingleColumnValueFilter(Bytes                        .toBytes("column2"), null, CompareOp.EQUAL, Bytes                        .toBytes("type"));                filters.add(filter2);                  Filter filter3 = new SingleColumnValueFilter(Bytes                        .toBytes("column3"), null, CompareOp.EQUAL, Bytes                        .toBytes("desc"));                filters.add(filter3);                  FilterList filterList1 = new FilterList(filters);                  Scan scan = new Scan();                scan.setFilter(filterList1);                ResultScanner rs = table.getScanner(scan);                for (Result r : rs) {                    System.out.println("获得到rowkey:" + new String(r.getRow()));                    for (KeyValue keyValue : r.raw()) {                        System.out.println("列：" + new String(keyValue.getFamily())                                + "====值:" + new String(keyValue.getValue()));                    }                }                rs.close();              } catch (Exception e) {                e.printStackTrace();            }          }      }