範例四: Scan all Column
package tsmc;
import java.io.IOException;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.client.HTable;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.client.ResultScanner;
import org.apache.hadoop.hbase.util.Bytes;
public class ScanTable {
static void ScanColumn(String tablename, String family, String column) {
HBaseConfiguration conf = new HBaseConfiguration();
HTable table;
try {
table = new HTable(conf, Bytes.toBytes(tablename));
ResultScanner scanner = table.getScanner(Bytes.toBytes(family));
System.out.println("Scan the Table [" + tablename
+ "]'s Column => " + family + ":" + column);
int i = 1;
for (Result rowResult : scanner) {
byte[] by = rowResult.getValue(Bytes.toBytes(family), Bytes
.toBytes(column));
String str = Bytes.toString(by);
System.out.println("row " + i + " is \"" + str + "\"");
i++;
}
} catch (IOException e) {
e.printStackTrace();
}
}
public static void main(String[] argv) {
ScanColumn("tsmc", "Products", "P2");
}
}