import java.io.IOException;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Admin;
import org.apache.hadoop.hbase.client.Connection;
import org.apache.hadoop.hbase.client.ConnectionFactory;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.CellUtil;
import org.apache.hadoop.hbase.client.Get;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.client.Table; public class HBaseTest2 {
public static Configuration configuration;
public static Connection connection;
public static Admin admin; public static void main(String[] args) {
configuration=HBaseConfiguration.create();
configuration.set("hbase.rootdir", "hdfs://localhost:9000/hbase"); /*
try {
connection=ConnectionFactory.createConnection(configuration);
admin=connection.getAdmin();
insertRow("Student","scofield","score","English","45");
insertRow("Student","scofield","score","Math","89");
insertRow("Student","scofield","score","Computer","100");
System.out.println("插入成功!---李运辰");
} catch (IOException e) {
e.printStackTrace();
}
*/
configuration.set("hbase.rootdir", "hdfs://localhost:9000/hbase");
try {
connection=ConnectionFactory.createConnection(configuration);
admin=connection.getAdmin();
getData("Student","scofield","score","English");
System.out.println("输出完成!---李运辰");
} catch (IOException e) {
e.printStackTrace();
} close();
} public static void insertRow(String tableName, String rowKey, String colFamily, String col, String val) {
try {
Table table = connection.getTable(TableName.valueOf(tableName));
Put put = new Put(rowKey.getBytes());
put.addColumn(colFamily.getBytes(), col.getBytes(), val.getBytes());
table.put(put);
table.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} } public static void getData(String tableName, String rowKey, String colFamily, String col) {
try {
Table table = connection.getTable(TableName.valueOf(tableName));
Get get=new Get(rowKey.getBytes());
get.addColumn(colFamily.getBytes(), col.getBytes());
Result result=table.get(get);
showCell(result);
table.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} } private static void showCell(Result result) {
Cell[] cells=result.rawCells();
for(Cell cell:cells) {
System.out.println("RowName:"+new String(CellUtil.cloneRow(cell))+" ");
System.out.println("Timetamp:"+cell.getTimestamp()+" ");
System.out.println("column Family"+new String(CellUtil.cloneFamily(cell))+" ");
System.out.println("row Name:"+new String(CellUtil.cloneValue(cell))+" ");
System.out.println("value"+new String(CellUtil.cloneValue(cell))+" "); } }
public static void close() { try {
if (admin != null) {
admin.close();
}
if(null!=connection) {
connection.close();
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} } }

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