How to modify the code???

Question

Hello forum,
I have code for retriving data from database.
I want to retrieve more than one row but the code only retrive the
last row. How to mdify the code??? SorryI am new in Servlet and JDBC.
Here is the codeimport java.io.*;
import java.text.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.sql.*;
public class TiketServlet extends HttpServlet {
     static final String dbURL ="jdbc:mysql://localhost:3306/tiketdb?" + "user=firman&password=ajolie";
     StringBuffer fullName = new StringBuffer();
     public void doPost(HttpServletRequest request, HttpServletResponse response)
          throws IOException, ServletException {
     Connection conn = null;
     String nextJSP = null;
     try {
          Class.forName("com.mysql.jdbc.Driver");
     catch (ClassNotFoundException e) {
          throw new ServletException("Unable to load JDBC driver");
     try {
     String keretaID = (String)request.getParameter("keretaID");
     String kelas = (String)request.getParameter("kelas");
          conn = DriverManager.getConnection(dbURL);
          Statement stmt1 = conn.createStatement();
          String query1 = "SELECT gerbong, kursi FROM "+keretaID+" WHERE kelas ='"+kelas+"';";
          ResultSet rs1 = stmt1.executeQuery(query1);
          while (rs1.next()) {
               StringBuffer fullName = new StringBuffer();
               fullName.append(rs1.getString(1));
               fullName.append(" ");
               fullName.append(rs1.getString(2));
               fullName.append('\n');
               request.setAttribute ("fullName", fullName.toString());
               nextJSP = "/LoginOK.jsp";
          conn.close();
          ServletConfig config = getServletConfig();
          ServletContext context = config.getServletContext();
          RequestDispatcher rd = context.getRequestDispatcher(nextJSP);
          rd.forward(request, response);
     catch (SQLException e) {
          throw new ServletException(e.getMessage());
     finally {
          if (conn != null) {
               try {
                    conn.close();
               catch (SQLException e) {
                    throw new ServletException("connection close failed");
     public void doGet(HttpServletRequest request, HttpServletResponse response)
          throws IOException, ServletException {
               doPost(request, response);
Many thanks

Answer 1

u've to define the stringBuffer before while loop.. thats it u get it correctly..
b'cos u r defining the stringBuffer inside.. each time when it is entering the loop the the existing stringBuffer is replacing by the new empty stringBuffer...
--veeru