How to storing more than 1 data to vector

Question

hi,
I would like to know if I can store the following:
select field1, field2, field3
from tableA
can I store this above data and return the values to jsp page and later used this in either jsp / java file.
in the jsp file I will need to display only field1
anyway can I do the above.

Answer 1

When you submit the form, the request.getParameter("fieldname"); in the servlet (or JSP which is a specialized servlet) will give you the selected customer name. Execute a query like
SELECT CustomerNumber, CustomerAddress FROm CustomerTable WHERE CustomerName = ?The ? corresponds to the selected customer name [If you are using PreparedStatement, which you should preferably, the query will have ? for the parameters and you need to set them].
Define a class with getters/setter to hold the data. Like -
public class CustomerBean {
    // Member variables.
    private String customerName     = null;
    private int customerNumber      = null;
    private String customerAddress  = null;
    // Getter methods
    public String getCustomerName()    { return this.customerName;    }
    public int getCustomerNumber()     { return this.customerNumber;  }
    public String getCustomerAddress() { return this.customerAddress; }
    // Setter methods
    public void setCustomerName(String customerName) {
        this.customerName = customerName;
    public void setCustomerNumber(int customerNumber) {
        this.customerNumber = customerNumber;
    public void setCustomerAddress(String customerAddress) {
        this.customerAddress = customerAddress;
}As you loop over the ResultSet from the query, create an object for each record to hold the data and add each object to the ResultSet. Set this List as a request (or session, depending on the requirements - a request attribute will exist only till the request is executed i.e. for one navigation; session attribute will exist as long as the session exists). Retrieve the List from the request (or session) attribute and populate the other information, in whatever manner you wish, on the JSP.