wiki:waue/2010/0204-02

範例二: Put 資料進 Column

執行方法

測試用打包檔 tsmcHBase_100204.jar

$ /opt/hadoop/bin/hadoop jar tsmcHBase_100204.jar PutData

程式碼

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.Put;
import org.apache.hadoop.hbase.util.Bytes;

public class PutData {
  public PutData(String tablename, String row, String family, String column,
      String value) {
    try {
      putData(tablename, row, family, column, value);
    } catch (IOException e) {
      e.printStackTrace();
    }
  }

  static public void putData(String tablename, String row, String family,
      String column, String value) throws IOException {
    // HBaseConfiguration 能接收 hbase-site.xml 的設定值
    HBaseConfiguration config = new HBaseConfiguration();
    // 檔案的操作則使用 HBaseAdmin
    HTable table = new HTable(config, tablename);

    byte[] brow = Bytes.toBytes(row);
    byte[] bfamily = Bytes.toBytes(family);
    byte[] bcolumn = Bytes.toBytes(column);
    byte[] bvalue = Bytes.toBytes(value);

    Put p = new Put(brow);
    p.add(bfamily, bcolumn, bvalue);

    table.put(p);
    System.out.println("Put data :\"" + value + "\" to Table: " + tablename
        + "'s " + family + ":" + column);

    table.close();
  }

  static public void main(String argv[]) throws IOException {

    putData("testtable", "row221", "f1", "c1", "my value good");
  }
}

Last modified 11 years ago Last modified on Feb 5, 2010, 12:00:07 AM