Chapter 15: JavaServer Pages: Part I

Useful Links

• JSP 2.0 Syntax Reference
• JSP Tutorial (Chapters 11-16)
• HttpSession Class
• HttpServletRequest Class
• W3C HTML Tutorial

Jack's Redirect Code

• index.htm
• store.jsp
• goal.jsp
• password.txt

Processing Client Requests

1. Retrieve data related to request
2. Process data
3. Send output to client

A number of implicit objects can be accessed by JSP scripting elements such as request, response, out, application, exception

Example

See the following code to see how to retrieve request header information as well as client and server information.

header.jsp

HTML Forms and Form Collection

• <input type="text" name="..." size="..." maxlength="..." value="..." />
• <input type="password" name="..." />
• <input type="hidden" name="..." value="..." />
• <input type="radio" name="..." value="..." />
• <input type="checkbox" name="..." value="..." />
• <input type="reset" value="Reset" />
• <input type="submit" value="Submit" />
• <textarea name="..." rows="..." cols="..."></textarea>
• select (see example)

Sample code. Notice that checkbox processing requires the use of arrays.

• logon.html
• address.jsp
• display.jsp

Exercise

Type in and get the guestbook example from Exercise 15-3 to work - 3 points. Add some interesting functionality to this example - 2 points. Have Jack or John check your work when you are finished.