2. Using the Tutorial Examples
3. Getting Started with Web Applications
5. JavaServer Pages Technology
Using Objects within JSP Pages
Using Application-Specific Objects
Immediate and Deferred Evaluation Syntax
Deactivating Expression Evaluation
Process of Expression Evaluation
JavaBeans Component Design Conventions
Creating and Using a JavaBeans Component
Setting JavaBeans Component Properties
Retrieving JavaBeans Component Properties
Including the Tag Library Implementation
Setting Properties for Groups of JSP Pages
Deactivating EL Expression Evaluation
Further Information about JavaServer Pages Technology
7. JavaServer Pages Standard Tag Library
10. JavaServer Faces Technology
11. Using JavaServer Faces Technology in JSP Pages
12. Developing with JavaServer Faces Technology
13. Creating Custom UI Components
14. Configuring JavaServer Faces Applications
15. Internationalizing and Localizing Web Applications
16. Building Web Services with JAX-WS
17. Binding between XML Schema and Java Classes
19. SOAP with Attachments API for Java
21. Getting Started with Enterprise Beans
23. A Message-Driven Bean Example
24. Introduction to the Java Persistence API
25. Persistence in the Web Tier
26. Persistence in the EJB Tier
27. The Java Persistence Query Language
28. Introduction to Security in the Java EE Platform
29. Securing Java EE Applications
31. The Java Message Service API
32. Java EE Examples Using the JMS API
36. The Coffee Break Application
Transferring Control to Another Web Component
The mechanism for transferring control to another web component from a JSP pageuses the functionality provided by the Java Servlet API as described inAccessing a Session. Youaccess this functionality from a JSP page by using thejsp:forward element:
<jsp:forward page="/main.jsp" />
Note that if any data has already been returned to a client,thejsp:forward element will fail with anIllegalStateException.
jsp:param Element
When aninclude orforward element is invoked, the original request object isprovided to the target page. If you wish to provide additional data tothat page, you can append parameters to the request object by using thejsp:param element:
<jsp:include page="..." > <jsp:param name="param1" value="value1"/></jsp:include>
Whenjsp:include orjsp:forward is executed, the included page or forwarded page willsee the original request object, with the original parameters augmented with the newparameters and new values taking precedence over existing values when applicable. For example, ifthe request has a parameterA=foo and a parameterA=bar is specifiedfor forward, the forwarded request will haveA=bar,foo. Note that the newparameter has precedence.
The scope of the new parameters is thejsp:include orjsp:forward call;that is, in the case of anjsp:include the new parameters (and values)will not apply after the include.
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