标签:family bool keep name pac mpi static compile master
创建表
Pom
<dependencies> <dependency> <groupId>org.apache.hbase</groupId> <artifactId>hbase-server</artifactId> <version>1.3.1</version> </dependency> <dependency> <groupId>org.apache.hbase</groupId> <artifactId>hbase-client</artifactId> <version>1.3.1</version> </dependency> <dependency> <groupId>org.apache.hadoop</groupId> <artifactId>hadoop-common</artifactId> <version>2.6.2</version> <scope>compile</scope> </dependency> </dependencies>
Java
import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.hbase.*; import org.apache.hadoop.hbase.client.*; import java.io.IOException; public class createTable { public static Connection conn; public static Configuration conf; static { conf = HBaseConfiguration.create(); conf.set("hbase.zookeeper.quorum", "192.168.222.128"); //hbase 服务地址 conf.set("hbase.zookeeper.property.clientPort", "2181"); //端口号 try { conn = ConnectionFactory.createConnection(conf); } catch (IOException e) { e.printStackTrace(); } } public static void main(String[] args) throws Exception { String tableName = "studentTable"; if(isTableExist(tableName)) { createtable(tableName,"info"); } System.out.println("end..."); } public static void createtable(String tablename, String... ColumnFamilys) throws IOException { Admin admin = conn.getAdmin(); /*if (admin != null) { try { //获取到数据库所有表信息 HTableDescriptor[] allTable = admin.listTables(); for (HTableDescriptor hTableDescriptor : allTable) { System.out.println(hTableDescriptor.getNameAsString()); } } catch (IOException e) { e.printStackTrace(); } }*/ HTableDescriptor table = new HTableDescriptor(TableName.valueOf(tablename)); for (String family : ColumnFamilys) { HColumnDescriptor columnfamily = new HColumnDescriptor(family); table.addFamily(columnfamily); } admin.createTable(table); System.out.println("create sucsssss"); } public static boolean isTableExist(String tableName) throws MasterNotRunningException, ZooKeeperConnectionException, IOException{ HBaseAdmin admin = new HBaseAdmin(conf); return admin.tableExists(tableName); } }
标签:family bool keep name pac mpi static compile master
原文地址:https://www.cnblogs.com/Jomini/p/12320933.html