ResultSet: getBlob(String colName)
import java.sql.Blob;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import javax.swing.JPanel;
public class BlobSelect extends JPanel {
public static void main(String args[]) throws Exception {
Connection conn = null;
byte[] data = getBLOB(01, conn);
}
public static byte[] getBLOB(int id, Connection conn) throws Exception {
ResultSet rs = null;
PreparedStatement pstmt = null;
String query = "SELECT photo FROM MyPictures WHERE id = ?";
try {
pstmt = conn.prepareStatement(query);
pstmt.setInt(1, id);
rs = pstmt.executeQuery();
rs.next();
Blob blob = rs.getBlob("photo");
// materialize BLOB onto client
return blob.getBytes(1, (int) blob.length());
} finally {
rs.close();
pstmt.close();
conn.close();
}
}
}
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