package cn.itcast_01_hbase;
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.HBaseConfiguration;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.MasterNotRunningException;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.ZooKeeperConnectionException;
import org.apache.hadoop.hbase.client.Connection;
import org.apache.hadoop.hbase.client.ConnectionFactory;
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.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.client.Table;
import org.apache.hadoop.hbase.filter.ColumnPrefixFilter;
import org.apache.hadoop.hbase.filter.CompareFilter;
import org.apache.hadoop.hbase.filter.CompareFilter.CompareOp;
import org.apache.hadoop.hbase.filter.FilterList;
import org.apache.hadoop.hbase.filter.FilterList.Operator;
import org.apache.hadoop.hbase.filter.MultipleColumnPrefixFilter;
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;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
public class HbaseTest_2 {
/**
* 配置ss
*/
static Configuration config = null;
private Connection connection = null;
private Table table = null;
@Before
public void init() throws Exception {
config = HBaseConfiguration.create();// 配置
//这里没有配置好像用的是path里面的hbase，这个程序是在linunx中
//运行的，所以 没有问题，下面的配置是集群中的，但是由于集群没有搭建起来
//用的是单机的
//config.set("hbase.zookeeper.quorum", "master,work1,work2");// zookeeper地址
//config.set("hbase.zookeeper.property.clientPort", "2181");// zookeeper端口
/*connection = ConnectionFactory.createConnection(config);
table = connection.getTable(TableName.valueOf("www.baidu.com20170630"));*/
connection = ConnectionFactory.createConnection(config);
table = connection.getTable(TableName.valueOf("t4"));
}
/**
* 创建一个表
*
* @throws Exception
*/
@Test
public void createTable() throws Exception {
//创建表管理
HBaseAdmin admin = new HBaseAdmin(config);
TableName tableName = TableName.valueOf("t4");
HTableDescriptor desc = new HTableDescriptor(tableName);
HColumnDescriptor family = new HColumnDescriptor("info");//
desc.addFamily(family);
HColumnDescriptor family2 = new HColumnDescriptor("ino2");
desc.addFamily(family2);
admin.createTable(desc);
}
@Test
@SuppressWarnings("deprecation")
public void deleteTable() throws MasterNotRunningException,
ZooKeeperConnectionException, Exception {
HBaseAdmin admin = new HBaseAdmin(config);
admin.disableTable("t3");
admin.deleteTable("t3");
admin.close();
}
/**
* 向hbase中增加数据
*
* @throws Exception
*/
@SuppressWarnings({ "deprecation", "resource" })
@Test
public void insertData() throws Exception {
List<Put> arraylist = new ArrayList<Put>(1);
Put put = new Put(Bytes.toBytes("1223434"));//rowkey
put.add(Bytes.toBytes("info"),Bytes.toBytes("name"),Bytes.toBytes("huangxiaoming"));
put.add(Bytes.toBytes("info"),Bytes.toBytes("password"),Bytes.toBytes("anglebaby"));
put.add(Bytes.toBytes("info"),Bytes.toBytes("age"),Bytes.toBytes("25"));
put.add(Bytes.toBytes("info"),Bytes.toBytes("gender"),Bytes.toBytes("1"));
arraylist.add(put);
//提交
table.put(arraylist);
//插入数据
table.flushCommits();
}
/**
* 修改数据，不存在时新增
*
* @throws Exception
*/
@Test
public void uodateData() throws Exception {
Put put = new Put(Bytes.toBytes("323422"));
put.add(Bytes.toBytes("info"), Bytes.toBytes("name_B"), Bytes.toBytes("郭德纲"));
put.add(Bytes.toBytes("info"), Bytes.toBytes("password_A"), Bytes.toBytes(1234));
Put put1 = new Put(Bytes.toBytes("323432"));
put1.add(Bytes.toBytes("info"), Bytes.toBytes("name_B"), Bytes.toBytes("沙河上"));
put1.add(Bytes.toBytes("info"), Bytes.toBytes("password_B"), Bytes.toBytes(1234));
Put put2 = new Put(Bytes.toBytes("323442"));
put2.add(Bytes.toBytes("info"), Bytes.toBytes("name_B"), Bytes.toBytes("猪八戒"));
put2.add(Bytes.toBytes("info"), Bytes.toBytes("password_B"), Bytes.toBytes(1234));
//插入数据
table.put(put);
table.put(put1);
table.put(put2);
//提交
table.flushCommits();
}
/**
* 删除数据
*
* @throws Exception
*/
@Test
public void deleteDate() throws Exception {
Delete delete = new Delete(Bytes.toBytes("1234"));
table.delete(delete);
table.flushCommits();
}
/**
* 单条查询
*
* @throws Exception
*/
@Test
public void queryData() throws Exception {
Get get =new Get(Bytes.toBytes("1234"));
//get.addColumn(Bytes.toBytes("info"), Bytes.toBytes("password"));//根据列族查询列名字查询
get.addFamily(Bytes.toBytes("info"));//根据列族查询
Result result = table.get(get);
long start = System.currentTimeMillis();
System.out.println(Bytes.toInt(result.getValue(Bytes.toBytes("info"), Bytes.toBytes("password"))));
System.out.println(Bytes.toString(result.getValue(Bytes.toBytes("info"), Bytes.toBytes("name"))));
long end = System.currentTimeMillis();
System.out.println(end-start);
}
/**
* 全表扫描
*
* @throws Exception
*/
@Test
public void scanData() throws Exception {
Scan scan = new Scan();
scan.setStartRow(Bytes.toBytes("1"));
scan.setStopRow(Bytes.toBytes("z"));//
//scan.addFamily(Bytes.toBytes("info"));
scan.addColumn(Bytes.toBytes("info"), Bytes.toBytes("name"));
ResultScanner scanner = table.getScanner(scan);
for(Result result : scanner){
System.out.print(Bytes.toString(result.getRow())+";");//rowkey
System.out.print(Bytes.toString(result.getValue(Bytes.toBytes("info"), Bytes.toBytes("name")))+";");
System.out.print(Bytes.toInt(result.getValue(Bytes.toBytes("info"), Bytes.toBytes("password")))+";");
System.out.println();
}
}
private void printScanner(ResultScanner scanner ){
for(Result result : scanner){
System.out.print(Bytes.toString(result.getRow())+";");//rowkey
System.out.print(Bytes.toString(result.getValue(Bytes.toBytes("info"), Bytes.toBytes("name")))+";");
System.out.print(Bytes.toInt(result.getValue(Bytes.toBytes("info"), Bytes.toBytes("password")))+";");
System.out.println();
}
}
/**
* 全表扫描的过滤器
* 列值过滤器
*
* @throws Exception
*/
@Test
public void scanDataByFilter1() throws Exception {
Scan scan = new Scan();
SingleColumnValueFilter filter = new SingleColumnValueFilter(Bytes.toBytes("info"), Bytes.toBytes("name"), CompareOp.GREATER, Bytes.toBytes("lisi1234"));
scan.setFilter(filter);
ResultScanner scanner = table.getScanner(scan);
printScanner(scanner);
}
/**
* rowkey过滤器
* @throws Exception
*/
@Test
public void scanDataByFilter2() throws Exception {
Scan scan = new Scan();
RowFilter rowFilter = new RowFilter(CompareOp.EQUAL, new RegexStringComparator("^2"));
scan.setFilter(rowFilter);
ResultScanner scanner = table.getScanner(scan);
printScanner(scanner);
}
/**
* 匹配列名前缀
* @throws Exception
*/
@Test
public void scanDataByFilter3() throws Exception {
Scan scan = new Scan();
ColumnPrefixFilter columnPrefixFilter = new ColumnPrefixFilter(Bytes.toBytes("n"));
//scan.addFamily(Bytes.toBytes("info"));
scan.setFilter(columnPrefixFilter);
ResultScanner scanner = table.getScanner(scan);
printScanner(scanner);
}
@Test
public void scanDataByFilter44() throws Exception {
//MultipleColumnPrefixFilter 和 ColumnPrefixFilter 行为差不多，但可以指定多个前缀
Scan scan = new Scan();
byte[][] prefixes = new byte[][] {Bytes.toBytes("na"),Bytes.toBytes("p")};
//Filter f = new MultipleColumnPrefixFilter(prefixes);
MultipleColumnPrefixFilter filter = new MultipleColumnPrefixFilter(prefixes);
scan.setFilter(filter);
ResultScanner scanner = table.getScanner(scan);
printScanner(scanner);
}
/**
* 过滤器集合
* @throws Exception
*/
@Test
public void scanDataByFilter4() throws Exception {
// 创建全表扫描的scan
Scan scan = new Scan();
FilterList filters = new FilterList(Operator.MUST_PASS_ALL);
RowFilter rowFilter = new RowFilter(CompareOp.EQUAL, new RegexStringComparator("^2"));
SingleColumnValueFilter singleColumnValueFilter = new SingleColumnValueFilter(Bytes.toBytes("info"), Bytes.toBytes("name"), CompareOp.NOT_EQUAL, Bytes.toBytes("lisi"));
filters.addFilter(rowFilter);
filters.addFilter(singleColumnValueFilter);
scan.setFilter(filters);
ResultScanner scanner = table.getScanner(scan);
printScanner(scanner);
}
@After
public void close() throws Exception {
table.close();
connection.close();
}
}
数据库表
scan ‘t4‘ ROW COLUMN+CELL 1223434 column=info:age, timestamp=1498891615751, value=25 1223434 column=info:gender, timestamp=1498891615751, value=1 1223434 column=info:name, timestamp=1498892027083, value=lisi1234 1223434 column=info:password, timestamp=1498892027083, value=\x00\x12\xD5. 1234 column=info:name, timestamp=1498892427671, value=lisi1234 1234 column=info:password, timestamp=1498892427671, value=\x00\x12\xD5. 12341 column=info:name, timestamp=1498894169373, value=sudan 12341 column=info:password, timestamp=1498894169373, value=\x00\x00\x00\x17 12342 column=info:name, timestamp=1498894341082, value=hanmei 12342 column=info:password, timestamp=1498894341082, value=\x00\x00\x04\xD2 123422 column=info:name, timestamp=1498894389540, value=\xE9\x83\xAD\xE5\xBE\xB7\xE7\xBA\xB2 123422 column=info:password, timestamp=1498894389540, value=\x00\x00\x04\xD2 12343 column=info:name, timestamp=1498894341091, value=sunwukong 12343 column=info:password, timestamp=1498894341091, value=\x00\x00\x04\xD2 123432 column=info:name, timestamp=1498894389549, value=\xE6\xB2\x99\xE6\xB2\xB3\xE4\xB8\x8A 123432 column=info:password, timestamp=1498894389549, value=\x00\x00\x04\xD2 12344 column=info:name, timestamp=1498894341093, value=\xE7\x8C\xAA\xE5\x85\xAB\xE6\x88\x92 12344 column=info:password, timestamp=1498894341093, value=\x00\x00\x04\xD2 123442 column=info:name, timestamp=1498894389551, value=\xE7\x8C\xAA\xE5\x85\xAB\xE6\x88\x92 123442 column=info:password, timestamp=1498894389551, value=\x00\x00\x04\xD2 223422 column=info:name, timestamp=1498894677209, value=\xE9\x83\xAD\xE5\xBE\xB7\xE7\xBA\xB2 223422 column=info:password, timestamp=1498894677209, value=\x00\x00\x04\xD2 223432 column=info:name, timestamp=1498894677222, value=\xE6\xB2\x99\xE6\xB2\xB3\xE4\xB8\x8A 223432 column=info:password, timestamp=1498894677222, value=\x00\x00\x04\xD2 223442 column=info:name, timestamp=1498894677225, value=\xE7\x8C\xAA\xE5\x85\xAB\xE6\x88\x92 223442 column=info:password, timestamp=1498894677225, value=\x00\x00\x04\xD2 323422 column=info:name, timestamp=1498894726797, value=\xE9\x83\xAD\xE5\xBE\xB7\xE7\xBA\xB2 323422 column=info:name_A, timestamp=1498896667538, value=\xE9\x83\xAD\xE5\xBE\xB7\xE7\xBA\xB2 323422 column=info:name_B, timestamp=1498896689859, value=\xE9\x83\xAD\xE5\xBE\xB7\xE7\xBA\xB2 323422 column=info:password, timestamp=1498894726797, value=\x00\x00\x04\xD2 323422 column=info:password_A, timestamp=1498896689859, value=\x00\x00\x04\xD2 323432 column=info:name, timestamp=1498894726809, value=\xE6\xB2\x99\xE6\xB2\xB3\xE4\xB8\x8A 323432 column=info:name_A, timestamp=1498896667547, value=\xE6\xB2\x99\xE6\xB2\xB3\xE4\xB8\x8A 323432 column=info:name_B, timestamp=1498896689870, value=\xE6\xB2\x99\xE6\xB2\xB3\xE4\xB8\x8A 323432 column=info:password, timestamp=1498894726809, value=\x00\x00\x04\xD2 323432 column=info:password_A, timestamp=1498896667547, value=\x00\x00\x04\xD2 323432 column=info:password_B, timestamp=1498896689870, value=\x00\x00\x04\xD2 323442 column=info:name, timestamp=1498894726811, value=\xE7\x8C\xAA\xE5\x85\xAB\xE6\x88\x92 323442 column=info:name_A, timestamp=1498896667549, value=\xE7\x8C\xAA\xE5\x85\xAB\xE6\x88\x92 323442 column=info:name_B, timestamp=1498896689872, value=\xE7\x8C\xAA\xE5\x85\xAB\xE6\x88\x92 323442 column=info:password, timestamp=1498894726811, value=\x00\x00\x04\xD2 323442 column=info:password_A, timestamp=1498896667549, value=\x00\x00\x04\xD2 323442 column=info:password_B, timestamp=1498896689872, value=\x00\x00\x04\xD2 15 row(s) in 0.0790 seconds hbase(main):017:0>
时间： 2024-10-06 14:47:24