Java代码访问Hbase测试-创新互联

import java.io.IOException;
import java.util.Iterator;
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.TableName;
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.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.util.Bytes;
import org.junit.Test;

public class Run {

static Configuration conf = null;

public static Configuration configuration;
static {
conf = HBaseConfiguration.create();
configuration = HBaseConfiguration.create();
configuration.set("hbase.zookeeper.property.clientPort", "2181");
configuration.set("hbase.zookeeper.quorum", "hd1,hd2,hd3,hd4");
configuration.set("hbase.master", "hd1:60000");
}

public static void main(String[] args) throws IOException{
// TODO Auto-generated method stub
try {
System.out.println("start");

go();
System.out.println("over");
}
catch (Exception e)
{
System.out.println(e.toString());
}
}

public Run() throws IOException {
super();

}

public static void go() throws IOException
{
for (int i1 = 0; i1 <= 3; i1++) {
for (int i2 = 0; i2 <= 3; i2++) {
for (int i3 = 0; i3 <= 3; i3++) {
for (int i4 = 0; i4 <= 3; i4++) {
System.out.println(Integer.toString(i1*1000+i2*100+i3*10+i4));
addData(i1, i2, i3, i4);
}
}
}
}
}

public static void addData(int i1, int i2, int i3, int i4) throws IOException {
String strTBName = "ttable0";
String strColFamily = "tuser";
String strColumn = "b";//列名
String strRowKey = "";//行号
String strValue = "1";//值

HTable table1 = new HTable(conf, strTBName);
strRowKey = Integer.toString(i1)+Integer.toString(i2)+Integer.toString(i3)+Integer.toString(i4);
Put put = new Put(Bytes.toBytes(strRowKey));// 设置行号，RowKey

put.add(Bytes.toBytes(strColFamily), Bytes.toBytes(strColumn),
Bytes.toBytes(strValue));

table1.put(put);

table1.close();
}

}

单纯这样写，别的问题没有，就是速度超级慢。损失的环节主要是建立连接和分配HTable的时候。

另外有需要云服务器可以了解下创新互联scvps.cn，海内外云服务器15元起步，三天无理由+7*72小时售后在线，公司持有idc许可证，提供“云服务器、裸金属服务器、高防服务器、香港服务器、美国服务器、虚拟主机、免备案服务器”等云主机租用服务以及企业上云的综合解决方案，具有“安全稳定、简单易用、服务可用性高、性价比高”等特点与优势，专为企业上云打造定制，能够满足用户丰富、多元化的应用场景需求。