Bean value forward to servlet

Question

Hi all,
i have bean package cedars;
import java.util.Hashtable;
import java.util.*;
public class FormBean {
      private String name = null;
      private String stuNumber = null;
      private String facultyName= null;
      private String quesOne = null;
      private String quesTwo = null;
      private String quesThree = null;
      private String quesFour= null;
      private String quesFive= null;
      private String quesSix= null;
      private String quesSeven= null;
      private String quesEight= null;
      private String quesNine= null;
      private String quesTen= null;
      private String quesEleven= null;
      private String quesTwelve= null;
      private String quesThirteen= null;
      private String quesFourteen= null;
      private String quesFifteen= null;
      private String quesSixteen= null;
      private String quesSeventeen = null;     
      private String quesEighteen=null;
      private String quesNineteen=null;
      private String quesTwenty=null;
      private String quesTwentyOne=null;
      private Hashtable errors = new Hashtable();
      public boolean validate() {
              boolean allOk=true;
              if (stuNumber.equals("")|| stuNumber.length() !=10) {
                  errors.put("stuNumber","Please enter a valid student Number");
                  stuNumber="";
                  allOk=false;
                } else {
                    try {
                        int x = Integer.parseInt(stuNumber);
                      } catch (NumberFormatException e) {
                        errors.put("stuNumber","Please enter a valid student Number");
                        stuNumber="";
                        allOk=false;
                }//else
              return allOk;        
      public String getErrorMsg(String s) {
              String errorMsg =(String)errors.get(s.trim());
              return (errorMsg == null) ? "":errorMsg;
     public FormBean () {
          again(); 
     /* Name */
       public String getName() {
         return (this.name);
       public void setName(String name) {
         this.name = name;
       /* Student number */
       public String getStuNumber(){
         return (this.stuNumber);
       public void setStuNumber(String stuNumber){
         this.stuNumber = stuNumber;
       /* gender */
       private String gender= null;
       public String getGender(){
         return (this.gender);
       public void setGender(String gender) {
         this.gender = gender;
       /*college*/
       public String getFacultyName(){
         return (this. facultyName);
       public void setFacultyName(String  facultyName){
         this. facultyName=facultyName;
       /*degree*/
       String degree=null;
       public String getDegree() {
              return (this.degree);
       public void setDegree(String degree){
         this.degree =degree;
       /* year */
       private String year = null;
       public String getYear() {
         return (this.year);
       public void setYear(String year){
         this.year = year;
       /*question one */
       public String getQuesOne() {
         return (this.quesOne);
       public void setQuesOne(String quesOne){
         this.quesOne = quesOne;
       /*question two */
       public String getQuesTwo() {
         return (this.quesTwo);
       public void setQuesTwo(String quesTwo){
         this.quesTwo = quesTwo;
       /*question Three */
       public void setQuesThree(String quesThree){
         this.quesThree = quesThree;
       /*question four */
       public String getQuesFour() {
         return (this.quesFour);
       public void setQuesFour(String quesFour){
         this.quesFour = quesFour;
       /*question five */
       public String getQuesFive() {
         return (this.quesFive);
       public void setQuesFive(String quesFive){
         this.quesFive = quesFive;
       /*question six */
       public String getQuesSix() {
         return (this.quesSix);
       public void setQuesSix(String quesSix){
         this.quesSix =quesSix;
       /*question seven */
       public String getQuesSeven(){
         return (this.quesSeven);
       public void setQuesSeven(String quesSeven){
         this.quesSeven =quesSeven;
       /*question Eight */
       public String getQuesEight() {
         return (this.quesEight);
       public void setQuesEight(String quesEight){
         this.quesEight =quesEight;
       /*question Nine */
       public String getQuesNine() {
         return (this.quesNine);
       public void setQuesNine(String quesNine) {
         this.quesNine =quesNine;
       /*question Ten */
       public String getQuesTen(){
         return (this.quesTen);
       public void setQuesTen(String quesTen){
         this.quesNine =quesTen;
       /*question Eleven*/
       public String getQuesEleven(){
         return (this.quesEleven);
       public void setQuesEleven(String quesEleven) {
         this.quesEleven =quesEleven;
       /* question Twelve*/
       public String getQuesTwelve(){
         return (this.quesTwelve);
       public void setQuesTwelve(String quesTwelve) {
         this.quesTwelve =quesTwelve;
       /* question Thirteen**/
       public String getQuesThirteen() {
         return (this.quesThirteen);
       public void setQuesThirteen(String quesThirteen) {
         this.quesThirteen =quesThirteen;
       /*question Fourteen*/
       public String getQuesFourteen() {
         return (this.quesFourteen);
       public void setQuesFourteen(String quesFourteen) {
         this.quesFourteen =quesFourteen;
       /* question Fifteen*/
       public String getQuesFifteen(){
         return (this.quesFifteen);
       public void setQuesFifteen(String quesFifteen) {
         this.quesFifteen =quesFifteen;
      /* question Sisteen*/
       public String getQuesSixteen(){
         return (this.quesSixteen);
       public void setQuesSixteen(String quesSixteen) {
         this.quesSixteen =quesSixteen;
      /* question Seventeen */
       public String getQuesSeventeen (){
         return (this.quesSeventeen );
       public void setQuesSeventeen (String quesSeventeen ) {
         this.quesSeventeen=quesSeventeen ;
       /* question Eighteen*/
       public String getQuesThree(){
         return (this.quesThree);
     public String getQuesEighteen (){
              return (this.quesEighteen );
     public void setQuesEighteen(String quesEighteen ){
              this.quesEighteen =quesEighteen ;
       /*question Nineteen*/
     public String getQuesNineteen(){
         return (this.quesNineteen );
      public void setQuesNineteen(String quesNineteen ){
           this.quesNineteen =quesNineteen ;
     /*Twenty*/
  public String getQuesTwenty(){
     return (this.quesTwenty );
  public void setQuesTwenty(String quesTwenty ){
     this.quesTwenty =quesTwenty ;
     /*Twenty-One*/
public String getQuesTwentyOne(){
return (this.quesTwentyOne );
public void setQuesTwentyOne(String quesTwentyOne ) {
      this.quesTwentyOne =quesTwentyOne ;     }
public void setErrors(String key, String msg) {
         errors.put(key,msg);
       public void again(){                               
              setName("");
              setStuNumber("");
              setGender("");
              setFacultyName("");
              setDegree("");            
              setYear("");           
              setQuesOne("");
              setQuesTwo("");
              setQuesThree("");
              setQuesFour("");
              setQuesFive("");
              setQuesSix("");
              setQuesSeven("");
              setQuesEight("");
              setQuesNine("");
              setQuesTen("");
              setQuesEleven("");
              setQuesTwelve("");
              setQuesThirteen("");
              setQuesFourteen("");
              setQuesFifteen("");     
              setQuesSixteen("");
              setQuesSeventeen("");
              setQuesEighteen("");
              setQuesNineteen("");
              setQuesTwenty("");
              setQuesTwentyOne("");
}and process.jsp
%@ page import="java.util.*" %>
<html>
  <head>
<jsp:useBean id="formHandler" class="cedars.FormBean" scope="request">
<jsp:setProperty name="formHandler" property="*"/>
</jsp:useBean>
<%
   if (formHandler.validate()) {%>
<jsp:forward page="/servlet/Insert"/>
<% } else { %>
<jsp:forward page="/resubmit.jsp"/>
<% } %>
</body>
</html>row now the forward to resubmit.jsp is work , but forward to <jsp:forward page="/servlet/Insert"/>
is not work , why?
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.sql.*;
import javax.sql.*;
import pool.ConnectionPool;
public class Insert extends HttpServlet {   
    Connection conn = null;
    Statement stmt = null;
     ResultSet rs = null;
     PreparedStatement ps = null;
     ConnectionPool connectionPool = null;
   * We want to initialized the JDBC connections here
    public void init()
             String jdbcDriver = "com.mysql.jdbc.Driver";
             String dbURL ="jdbc:mysql://localhost/survey?";
             try
             //instantiate the connection pool object by passing the
             //jdbc driver, database URL, username, and password
             connectionPool = new ConnectionPool(jdbcDriver, dbURL,
             "root","mysql");
             //specify the initial number of connections to establish
             connectionPool.setInitialConnections(5);
             //specify number of incremental connections to create if
             //pool is exhausted of available connections
             connectionPool.setIncrementalConnections(5);
             //specify absolute maximum number of connections to create
             connectionPool.setMaxConnections(20);
             connectionPool.createPool(); //create the connection pool
             catch(Exception e)
             System.out.println("Error: " + e);
/** Destroys the servlet.
    public void destroy() {
    public void doGet(
    HttpServletRequest request,
    HttpServletResponse response)
    throws IOException, ServletException {  
       }// end of DoGet
public void doPost(HttpServletRequest req, HttpServletResponse res)
    throws ServletException, IOException {    
     res.setContentType("text/html");
     PrintWriter out = res.getWriter(); 
   try {        
    //Get the incoming data parameters from the client         
           String  name=req.getParameter("name");
           String  stuNumber=req.getParameter("stuNumber");
           String  gender=req.getParameter("gender");
           String  facultName=req.getParameter("facultyName");
           String  degree=req.getParameter("degree");          
           String  year=req.getParameter("year");        
           String  quesOne=req.getParameter("quesOne");
           String  quesTwo=req.getParameter("quesTwo");
           String  quesThree=req.getParameter("quesThree");
           String  quesFour=req.getParameter("quesFour");
           String  quesFive=req.getParameter("quesFive");
           String  quesSix=req.getParameter("quesSix");
           String  quesSeven=req.getParameter("quesSeven");
           String  quesEight=req.getParameter("quesEight");
           String  quesNine=req.getParameter("quesNine");
           String  quesTen=req.getParameter("quesTen");
           String  quesEleven=req.getParameter("quesEleven");
           String  quesTwelve=req.getParameter("quesTwelve");
           String  quesThirteen=req.getParameter("quesThirteen");
           String  quesFourteen=req.getParameter("quesFourteen");
           String  quesFifteen=req.getParameter("quesFifteen");
           String  quesSixteen=req.getParameter("quesSixteen");
           String  quesSeventeen=req.getParameter("quesSeventeen");
           String  quesEighteen=req.getParameter("quesNineteen");
           String  quesNineteen=req.getParameter("quesNineteen");
           String  quesTwenty=req.getParameter("quesTwenty");
           String  quesTwentyOne=req.getParameter("quesTwentyOne");
           String ErrMsg="";
           String found="";
           HttpSession userSession = req.getSession(true);   
           HttpSession session=req.getSession();
           for (int i=0; i<stuNumber.length(); i++){              
                char ch=stuNumber.charAt(i);
               if (Character.isLetter(ch)){
                 found =found +ch;}
            * check the empty fields
                   if (stuNumber.equals("") ||                    
                            ((found.length()>=1 ))||                         
                            (stuNumber.length()!=10))
                       out.println("<html>");                        
                       out.println("<body bgcolor=\"#FFFFFF\">");
                        out.println("<center>");
                       out.println("<strong> Valid Studend number is require!<strong>");
                       out.println("</center>");
                       out.println("</body>");                        
                       out.println("</html>");
                       out.close();
                   Integer q1=0, q2=0, q3=0, q4=0, q5=0, q6=0, q7=0, q8=0,q9=0,q10=0;
                   Integer q11=0, q12=0, q13=0, q14=0, q15=0, q16=0, q17=0, q18=0, q19=0, q20=0,q21=0;
                     q1 = Integer.valueOf(quesOne);
                     q2 = Integer.valueOf(quesTwo);
                     q3 = Integer.valueOf(quesThree);
                     q4 = Integer.valueOf(quesFour);
                     q5 = Integer.valueOf(quesFive);
                     q6 = Integer.valueOf(quesSix);
                     q7 = Integer.valueOf(quesSeven);
                     q8 = Integer.valueOf(quesEight);
                     q9 = Integer.valueOf(quesNine);
                      q10 = Integer.valueOf(quesTen);
                      q11 = Integer.valueOf(quesEleven);
                      q12 = Integer.valueOf(quesTwelve);
                      q13 = Integer.valueOf(quesThirteen);
                      q14 = Integer.valueOf(quesFourteen);
                       q15 = Integer.valueOf(quesFifteen);
                       q16 = Integer.valueOf(quesSixteen);
                        q17 = Integer.valueOf(quesSeventeen);
                         q18 = Integer.valueOf(quesEighteen);
                         q19 = Integer.valueOf(quesNineteen);
                         q20 = Integer.valueOf(quesTwenty);
                          q21 = Integer.valueOf(quesTwentyOne);
                   Integer total=0;
                   total=q1+q2+q3+q4+q5+q6+q7+q8+q9+q10+q11+q12+q13+q14+q15+q16+q17+q18+q19+q20+q21;
                   /*if form is valid, catch the session*/
                     userSession.setAttribute("stuNumber",stuNumber );
                       userSession.setAttribute("quesOne",quesOne); 
                       userSession.setAttribute("quesTwo",quesTwo); 
                       userSession.setAttribute("quesThree",quesThree); 
                       userSession.setAttribute("quesFour",quesFour); 
                       userSession.setAttribute("quesFive",quesFive); 
                       userSession.setAttribute("quesSix", quesSix); 
                       userSession.setAttribute("quesSeven",quesSeven); 
                       userSession.setAttribute("quesEight",quesEight); 
                       userSession.setAttribute("quesNine",quesNine); 
                       userSession.setAttribute("quesTen",quesTen); 
                       userSession.setAttribute("quesTwelve", quesTwelve);
                       userSession.setAttribute("quesEleven",  quesEleven);
                       userSession.setAttribute("quesThirteen", quesThirteen);
                       userSession.setAttribute("quesFourteen", quesFourteen);
                       userSession.setAttribute("quesFifteen",   quesFifteen);              
                      userSession.setAttribute("quesSixteen",  quesSixteen);             
                      userSession.setAttribute("quesSeventeen",quesSeventeen);
                      userSession.setAttribute("quesEighteen", quesEighteen);
                      userSession.setAttribute("quesNineteen",quesNineteen);
                      userSession.setAttribute("quesTwenty",quesTwenty);
                       userSession.setAttribute("quesTwentyOne",quesTwentyOne);
                       userSession.setAttribute("total",total);
                        RequestDispatcher disp;
                        disp = getServletContext().getRequestDispatcher("/confirmation.jsp");
                        disp.forward(req, res);      
                      //get free connection from pool
                        conn =connectionPool.getConnection();      
            //select a database
           // conn.setCatalog("survey");
            /* add this part*/
            stmt = conn.createStatement();
            rs = stmt.executeQuery("SELECT*  FROM survey where stuNumber='"+stuNumber+"'");
                int count =0;//how many rows we can find.
                while (rs.next()){
                    count++;
                connectionPool.returnConnection(conn);
             if(count<1){                       
                      conn.setAutoCommit(false);
                    String  sql="insert into survey(name, stuNumber, gender,facultyName,degree, year, quesOne, quesTwo, quesThree, quesFour, quesFive, quesSix,quesSeven, quesEight, quesNine,quesTen,quesEleven, quesTwelve, quesThirteen, quesFourteen,quesFifteen, quesSixteen, quesSeventeen, quesEighteen, quesNineteen, quesTwenty, quesTwentyOne)";
                                         sql+="value(?, ?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)";
                          ps = conn.prepareStatement(sql);
                          stmt = conn.createStatement();
                           ps.setString(1, name);
                          ps.setString(2, stuNumber);
                          ps.setString(3, gender);
                          ps.setString(4, facultName);
                          ps.setString(5, degree);
                          ps.setString(6, year);
                          ps.setString(7, quesOne);
                          ps.setString(8, quesTwo);
                          ps.setString(9, quesThree);
                          ps.setString(10, quesFour);
                          ps.setString(11, quesFive);
                          ps.setString(12, quesSix);
                          ps.setString(13, quesSeven);
                          ps.setString(14, quesEight);
                          ps.setString(15, quesNine);
                          ps.setString(16, quesTen);
                          ps.setString(17, quesEleven);
                          ps.setString(18, quesTwelve);
                          ps.setString(19, quesThirteen);
                          ps.setString(20, quesFourteen);
                          ps.setString(21, quesFifteen);
                          ps.setString(22, quesSixteen);
                          ps.setString(23, quesSeventeen);
                          ps.setString(24, quesEighteen);
                          ps.setString(25, quesNineteen);
                          ps.setString(26, quesTwenty);
                          ps.setString(27, quesTwentyOne);
                          ps.executeUpdate();                   
                     conn.commit();
                  conn.setAutoCommit(true);   
                  connectionPool.returnConnection(conn);
             /* doing the update*/
             else{
                  conn.setAutoCommit(false);
                  String sql2 = "UPDATE survey set name=?";
                    sql2+= ", gender=?,facultyName=?,degree=?, year=?, quesOne=?, questwo=?, quesThree=?, quesFour=?, quesFive=?, quesSix=?,";
                    sql2+= "quesSeven=?,quesEight=?, quesNine=?, quesTen=?,quesEleven=?, quesTwelve=?, quesThirteen=?, quesFourteen=?";
                    sql2+=",quesFifteen=?, quesSixteen=?, quesSeventeen=?, quesEighteen=?, quesNineteen=?, quesTwenty=?, quesTwentyOne=?";
                    sql2+="WHERE stuNumber=?";
                    ps = conn.prepareStatement(sql2);
                    stmt = conn.createStatement();
                     ps.setString(1, name);                    
                      ps.setString(2, gender);
                      ps.setString(3, facultName);
                      ps.setString(4, degree);
                      ps.setString(5, year);
                      ps.setString(6, quesOne);
                      ps.setString(7, quesTwo);
                      ps.setString(8, quesThree);
                      ps.setString(9, quesFour);
                      ps.setString(10, quesFive);
                      ps.setString(11, quesSix);
                      ps.setString(12, quesSeven);
                      ps.setString(13, quesEight);
                      ps.setString(14, quesNine);
                      ps.setString(15, quesTen);
                      ps.setString(16, quesEleven);
                      ps.setString(17, quesTwelve);
                      ps.setString(18, quesThirteen);
                      ps.setString(19, quesFourteen);
                      ps.setString(20, quesFifteen);
                      ps.setString(21, quesSixteen);
                      ps.setString(22, quesSeventeen);
                      ps.setString(23, quesEighteen);
                      ps.setString(24, quesNineteen);
                      ps.setString(25, quesTwenty);
                      ps.setString(26, quesTwentyOne);
                      ps.setString(27,  stuNumber);
                      ps.executeUpdate();                   
               conn.commit();
             conn.setAutoCommit(true);   
             connectionPool.returnConnection(conn);
    }catch (SQLException e) {
          throw new ServletException(e);
     finally {
          try {
               if(rs != null)
                    rs.close();
               if(stmt != null)
                    stmt.close();
               if(ps != null)
                    ps.close();
               if(conn != null)
                    conn.close();
               connectionPool.returnConnection(conn);
          } catch (SQLException e) {}
} // end doPost
public String getServletInfo()
    return "A Simple Servlet";
}// end of ContrInsert

Answer 1

The way to do this with a JSP is use an HTML Form tag to pass all the information on to a new page, and save the new info while creating this new page