WebSphere Application Server - IBM Redbooks

In this example, we will be building a page called AddNewItemProcess.jsp. The
entry point into this process is an HTML page called AddNewItem.html. This
page basically consists of a form with input fields. The fields are used to collect
data about the new item that is to be added. When the user clicks the Submit
button, AddNewItemProcess.jsp is called to take those fields and add a record to
the database based on them. The basic flow of this process is shown in
Figure 8-9.
*
Add Item
Required fields are indicated by an asterisk
Item Number
Item Name
Description
Quantity
Price (US)
Featured Item?
Reset
Submit
AddNewItem.html
Figure 8-9 Add new item process
get request parameters
validate item #
Look for duplicate items in db
If this item is a featured item, unmark
others
Add item to the database
AddNewItemProcess.jsp
Creating a new JSP
To create a new JSP:
1. From the Web perspective and Project Navigator view, select the folder where
you want to put the JSP. This can be directly in the Web Content folder of the
Web project or in a user-defined folder under it. In this case, we will select the
Web Content/administration folder.
2. Right-click the folder and select New -> JSP file. A wizard will begin.
3. On the first page, set the File Name field to AddNewItemProcess.
266 IBM WebSphere Application Server - Express V5.0.2 Developer Handbook
Database