Using java bean in servlet

Question

Hi,
I have a problem in getting the values from simple bean to servlet. The project has one html form. When the user click on the submit button one jsp will be invoked which calls a bean program to validate the user data for required fields. Based on the result, jsp program forward the control to a servlet which stores the data in a database. Otherwise another jsp is called to inform the user to fill in the required data.
My problem is how to send the data from bean to servlet?
The snippet of jsp that calls bean is like this :
<%!
%>
<jsp:useBean id="formHandler" class = "subFormBean" scope="request">
<jsp:setProperty name="formHandler" property="*"/>
</jsp:useBean>
<%
if (formHandler.validate()) {
%>
<jsp:forward page="subscriberRegistration"/>
<%
} else {
%>
<jsp:forward page="retry.jsp"/>
<%
%>
And the snippet of the bean is like this :
public boolean validate() {
boolean bool=true;
if (subname.equals("")) {
errors.put("subname","Please enter your Name");
subname="";
bool=false;
public subFormBean() {
subname="";
public String getSubName() {
return subname;
public void setSubName(String sname) {
subname =sname;
The servlet which is to receive the data is like this :
public class subscriberRegistration extends HttpServlet{
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
subFormBean sfb = new subFormBean();
sfb.setSubName(subname);
But I'm getiing error while trying to compile the servelet saying that no variables found - sfb, subname etc.
Please let me know how to invoke the bean from servlet. I want to use servlet to instead of jsp to insert records into database. How can i do this? Please help me. Thanks in advance.

Answer 1

Hi Tolls,
Sorry, I'll give a bigger snippet of the prog.code below :
public class subscriberRegistration extends HttpServlet{
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
subFormBean sfb = new subFormBean();
sfb.setSubName(subname);
sfb.setSubAddress(subaddress);
sfb.setSubCity(subcity);
sfb.setSubState(substate);
sfb.setSubCntry(subcntry);
sfb.setSubPin(subpin);
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException{
response.setContentType("text/html");
PrintWriter pw = response.getWriter();
Class.forName("oracle.jdbc.driver.OracleDriver");
connection = DriverManager.getConnection(connectionURL,"scott","tiger");
stmt = connection.createStatement();
rs = stmt.executeQuery("SELECT subid_seq.NEXTVAL FROM DUAL");
while(rs.next()) {
String subno = rs.getString("NEXTVAL");
PreparedStatement pst = connection.prepareStatement("insert into eps_subscriber(eps_subno, eps_subname, eps_subaddress, eps_subcity, eps_substate, eps_subcntry, eps_subpin, eps_subphno, eps_subemailid, eps_subuserid, eps_subpwd) values(?,?,?,?,?,?,?,?,?,?,?)");
pst.setString(1,subno);
pst.setString(2,sfb.subname);
pst.setString(3,sfb.subaddress);
pst.setString(4,sfb.subcity);
pst.setString(5,sfb.substate);
pst.setString(6,sfb.subcntry);
pst.setString(7,sfb.subpin);
I'm validating the form data in beans program. Servlet is used to insert records into the database. So, i'm trying to capture data from the bean. How to capture the data from the bean to servlet? Or should I get it from the form fields directly? The servlet worked well when data was captured directly from html form fields. Please help me to fix this. Thanks in advance.