Document Information


Part I Introduction

1.  Overview

2.  Using the Tutorial Examples

Part II The Web Tier

3.  Getting Started with Web Applications

4.  Java Servlet Technology

5.  JavaServer Pages Technology

What Is a JSP Page?

A Simple JSP Page Example

The Example JSP Pages

The Life Cycle of a JSP Page

Translation and Compilation



Handling JSP Page Errors

Creating Static Content

Response and Page Encoding

Creating Dynamic Content

Using Objects within JSP Pages

Using Implicit Objects

Using Application-Specific Objects

Using Shared Objects

Unified Expression Language

Immediate and Deferred Evaluation Syntax

Immediate Evaluation

Deferred Evaluation

Value and Method Expressions

Value Expressions

Method Expressions

Defining a Tag Attribute Type

Deactivating Expression Evaluation

Literal Expressions

Resolving Expressions

Process of Expression Evaluation

EL Resolvers

Implicit Objects


Reserved Words

Examples of EL Expressions


Using Functions

Defining Functions

JavaBeans Components

JavaBeans Component Design Conventions

Creating and Using a JavaBeans Component

Setting JavaBeans Component Properties

Retrieving JavaBeans Component Properties

Using Custom Tags

Declaring Tag Libraries

Including the Tag Library Implementation

Reusing Content in JSP Pages

Transferring Control to Another Web Component

jsp:param Element

Setting Properties for Groups of JSP Pages

Deactivating EL Expression Evaluation

Declaring Page Encodings

Defining Implicit Includes

Eliminating Extra White Space

Further Information about JavaServer Pages Technology

6.  JavaServer Pages Documents

7.  JavaServer Pages Standard Tag Library

8.  Custom Tags in JSP Pages

9.  Scripting in JSP Pages

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

Part III Web Services

16.  Building Web Services with JAX-WS

17.  Binding between XML Schema and Java Classes

18.  Streaming API for XML

19.  SOAP with Attachments API for Java

Part IV Enterprise Beans

20.  Enterprise Beans

21.  Getting Started with Enterprise Beans

22.  Session Bean Examples

23.  A Message-Driven Bean Example

Part V Persistence

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

Part VI Services

28.  Introduction to Security in the Java EE Platform

29.  Securing Java EE Applications

30.  Securing Web Applications

31.  The Java Message Service API

32.  Java EE Examples Using the JMS API

33.  Transactions

34.  Resource Connections

35.  Connector Architecture

Part VII Case Studies

36.  The Coffee Break Application

37.  The Duke's Bank Application

Part VIII Appendixes

A.  Java Encoding Schemes

B.  About the Authors



Including an Applet

You can include an applet or a JavaBeans component in a JSP page by using the jsp:plugin element. This element generates HTML that contains the appropriate client-browser-dependent construct (<object> or <embed>) that will result in the download of the Java Plug-in software (if required) and the client-side component, and in the subsequent execution of any client-side component. The syntax for the jsp:plugin element is as follows:

     { align="alignment" }
     { archive="archiveList" }
     { height="height" }
     { hspace="hspace" }
     { jreversion="jreversion" }
     { name="componentName" }
     { vspace="vspace" }
     { width="width" }
     { nspluginurl="url" }
     { iepluginurl="url" } >
     { <jsp:params>
         { <jsp:param name="paramName" value= paramValue" /> }+
    </jsp:params> }
     { <jsp:fallback> arbitrary-text </jsp:fallback> }

The jsp:plugin tag is replaced by either an <object> or an <embed> tag as appropriate for the requesting client. The attributes of the jsp:plugin tag provide configuration data for the presentation of the element as well as the version of the plug-in required. The nspluginurl and iepluginurl attributes override the default URL where the plug-in can be downloaded.

The jsp:params element specifies parameters to the applet or JavaBeans component. The jsp:fallback element indicates the content to be used by the client browser if the plug-in cannot be started (either because <object> or <embed> is not supported by the client or because of some other problem).

If the plug-in can start but the applet or JavaBeans component cannot be found or started, a plug-in-specific message will be presented to the user, most likely a pop-up window reporting a ClassNotFoundException.

The Duke’s Bookstore page /template/prelude.jspf creates the banner that displays a dynamic digital clock generated by DigitalClock (see Figure 5-3).

Figure 5-3 Duke’s Bookstore with Applet

Screen capture of Duke's Bookstore with

Here is the jsp:plugin element that is used to download the applet:

     align="center" height="25" width="300"
     iepluginurl="" >
        <jsp:param name="language"
            value="${pageContext.request.locale.language}" />
        <jsp:param name="country"
            value="${}" />
        <jsp:param name="bgcolor" value="FFFFFF" />
        <jsp:param name="fgcolor" value="CC0066" />
        <p>Unable to start plugin.</p>