Get all values of all rows in Hbase using Java

Question

I have the following code.I am trying to retrieve all the rows in the table given the column family. I was able to get all the rows but the output is not what i expected. I get an output which shows the key and time stamp but not the value. Why isn't the values of the rows getting displayed? Please help. The output is given below:

  keyvalues={Justin/marks:total/1375104216267/Put/vlen=7/ts=0, Justin/marks:markPercentage/  1375104186783/Put/vlen=4/ts=0}

//Code to get all rows from hbase

public class GetHbaseData {
public static void getdata() throws IOException{
@SuppressWarnings("resource")
HTable table = new HTable(HBaseConfiguration.create(), "Student");
Scan scan = new Scan();
scan.setCaching(20);

scan.addFamily(Bytes.toBytes("marks"));
ResultScanner scanner = table.getScanner(scan);

for (Result result = scanner.next(); (result != null); result = scanner.next()) {
    Get get = new Get(result.getRow());
    Result entireRow = table.get(get); 
    System.out.println(entireRow);
}
}

Answer 1

For getting all rows with all columns you dont need to make Get call again inside your for loop. Try something like this.

for (Result result = scanner.next(); (result != null); result = scanner.next()) {
    for(KeyValue keyValue : result.list()) {
        System.out.println("Qualifier : " + keyValue.getKeyString() + " : Value : " + Bytes.toString(keyValue.getValue()));
    }
}