= 範例四： Scan all Column = 

 == 執行方法 ==
[raw-attachment:wiki:NCHCCloudCourse100204:tsmcHBase_100204.jar 測試用打包檔 tsmcHBase_100204.jar]

{{{
$ /opt/hadoop/bin/hadoop jar tsmcHBase_100204.jar ScanColumn
}}}

 == 程式碼 ==
{{{
#!java
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");
	}
}

}}}