ideaAPI对hbase进行操作

package com.bawei;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.;
import org.apache.hadoop.hbase.client.;
import org.apache.hadoop.hbase.util.Bytes;

import java.io.IOException;

public class Count {

//创建连接
private static Connection connection=null;
static {
    //创建配置文件
    Configuration conf = HBaseConfiguration.create();
    //设置zookeeper参数和主机名称
    conf.set("hbase.zookeeper.quorum", "hdp444,hdp555,hdp666");
    //设置端口号
    conf.set("hbase.zookeeper.property.clientPort", "2181");
    try {
        connection = ConnectionFactory.createConnection(conf);
    } catch (IOException e) {
        e.printStackTrace();
    }
}
//添加表
public static void start1(String tablename,String... familes) throws IOException {
    Admin admin = connection.getAdmin();
    HTableDescriptor hTableDescriptor = new HTableDescriptor(TableName.valueOf(tablename));
    try {
        for (String famile:familes){
            HColumnDescriptor hColumnDescriptor = new HColumnDescriptor(famile);
            hTableDescriptor.addFamily(hColumnDescriptor);
        }
        admin.createTable(hTableDescriptor);
    }finally {
        admin.close();
    }
}
//添加数据
public static void start2(String tablename,String rowKey,String family,String column,String value,String family1,String column1,String value1) throws IOException {
    Admin admin = connection.getAdmin();

    try {
        if (!admin.tableExists(TableName.valueOf(tablename))){
            System.out.println(tablename+"表不存在");
            return;
        }
        Table table = connection.getTable(TableName.valueOf(tablename));
        Put put = new Put(Bytes.toBytes(rowKey));
        put.addColumn(Bytes.toBytes(family),Bytes.toBytes(column),Bytes.toBytes(value));
        table.put(put);
        Put put1 = new Put(Bytes.toBytes(rowKey));
        put1.addColumn(Bytes.toBytes(family1),Bytes.toBytes(column1),Bytes.toBytes(value1));
        table.put(put1);
    }finally {
        admin.close();
    }
}
//获取数据
public static void start3(String tablename,String startrow,String stoprow) throws IOException {
    //获取表
    Table table = connection.getTable(TableName.valueOf(tablename));
    Scan scan = new Scan(Bytes.toBytes(startrow), Bytes.toBytes(stoprow));
    //获取列
    ResultScanner scanner = table.getScanner(scan);
    for (Result result:scanner){
        for (Cell cell:result.rawCells()){
            //获取rowkey
            byte[] rowbys = CellUtil.cloneRow(cell);
            String rowpom = Bytes.toString(rowbys);
            //获取val
            String commstr = Bytes.toString(CellUtil.cloneQualifier(cell));
            String values = Bytes.toString(CellUtil.cloneValue(cell));
            System.out.println(rowpom+"----"+commstr+"---"+values);
        }
    }
    scanner.close();
    table.close();
}
//删除一行数据
public static void start4(String tablename,String rowkey) throws IOException {
    Admin admin = connection.getAdmin();
    if (!admin.tableExists(TableName.valueOf(tablename))){
        System.out.println(tablename+"表不存在");
        return;
    }
    Table table = connection.getTable(TableName.valueOf(tablename));
    try {
        Delete delete = new Delete(Bytes.toBytes(rowkey));
        table.delete(delete);
    }finally {
        admin.close();
    }
}

//删除表
public static void start5(String tablename) throws IOException {
    //获取对象
    Admin admin = connection.getAdmin();
   try {
       if (!admin.tableExists(TableName.valueOf(tablename))){
           System.out.println(tablename+"表不存在");
           return;
       }
       admin.disableTable(TableName.valueOf(tablename));
       admin.deleteTable(TableName.valueOf(tablename));
   }finally {
       admin.close();
   }
}

public static void main(String[] args) throws IOException {
    //创建表

// start1(“company”,“info”,“data”);
//添加数据
// start2(“company”,“001”,“info”,“name”,“Baidu”,“data”,“city”,“xm”);
// start2(“company”,“002”,“info”,“name”,“huawei”,“data”,“city”,“xh”);
// start2(“company”,“003”,“info”,“name”,“xiaomi”,“data”,“city”,“xb”);
//查询数据
// start3(“company”,“001”,“004”);
//删除一行数据
// start4(“company”,“002”);
//删除表
start5(“company”);

}

}