Sun Certified Web Component Developer (SCWCD)

The Sun Certified Web Component Developer for the Java Platform, Enterprise Edition 5 certification exam is for Sun Certified Programmers (any edition) who are using the Java technology servlet and JavaServer Pages (JSP) application program interface (APIs) to develop web applications.

 

Prerequisites

To achieve this certification, candidates must successfully complete one exam. Prior to attempting certification, candidates must be certified as a Sun Certified Programmer (SCJP), any edition

Exam: CX-310-083

Sun Certified Web Component Developer for the Java Platform, Enterprise Edition 5

Objective:

This certification is for developers specializing in the application of JavaServer Pages and servlet technologies used to present Web services and dynamic Web content

Exam:

Sun Certified Web Component Developer for the Java Platform, Enterprise Edition 5 (CX-310-083)

Overview and Setup

• Understanding the role of servlets
• Evaluating servlets vs. other technologies
• Understanding the role of JSP
• Configuring the server
• Configuring your development environment
• Testing the server setup

Servlet Basics

• The basic structure of servlets
• A simple servlet that generates plain text
• A servlet that generates HTML
• Servlets and packages
• Some utilities that help build HTML
• The servlet life cycle
• Servlet debugging strategies

Handling the Client Request: Form Data

• The role of form data
• Creating and submitting HTML forms
• Reading individual request parameters
• Reading the entire set of request parameters
• Handling missing and malformed data
• Dealing with incomplete form submissions
• Filtering special characters out of the request parameters

Handling the Client Request: HTTP Request Headers

• Reading HTTP request headers
• Building a table of all the request headers
• Understanding the various request headers
• Reducing download times by compressing pages
• Differentiating among types of browsers

Generating the Server Response: HTTP Status Codes

• Format of the HTTP response
• How to set status codes
• What the status codes are good for
• Shortcut methods for redirection and error pages
• A servlet that redirects users to browser-specific pages
• A front end to various search engines

Generating the Server Response: HTTP Response Headers

• Format of the HTTP response
• Setting response headers
• Understanding what response headers are good for
• Building Excel spread sheets
• Generating JPEG images dynamically
• Sending incremental updates to the browser

Handling Cookies

• Understanding the benefits and drawbacks of cookies
• Sending outgoing cookies
• Receiving incoming cookies
• Tracking repeat visitors
• Specifying cookie attributes
• Differentiating between session cookies and persistent cookies
• Simplifying cookie usage with utility classes
• Modifying cookie values
• Remembering user preferences

Session Tracking

• Implementing session tracking from scratch
• Using basic session tracking
• Understanding the session-tracking API
• Differentiating between server and browser sessions
• Encoding URLs
• Storing immutable objects vs. storing mutable objects
• Tracking user access counts
• Accumulating user purchases
• Implementing a shopping cart
• Building an online store

JSP Intro and Overview

• Understanding the need for JSP
• Evaluating the benefits of JSP
• Comparing JSP to other technologies
• Avoiding JSP misconceptions
• Understanding the JSP lifecycle
• Installing JSP pages
• Looking at JSP in the real world

Invoking Java Code with JSP Scripting Elements

• Static vs. dynamic text
• Dynamic code and good JSP design
• JSP expressions
• Servlets vs. JSP pages for similar tasks
• JSP scriptlets
• JSP declarations
• Predefined variables
• Comparison of expressions, scriptlets, and declarations

Controlling the Structure of Generated Servlets: The JSP page Directive

• Understanding the purpose of the page directive
• Designating which classes are imported
• Specifying the MIME type of the page
• Generating Excel spreadsheets
• Participating in sessions
• Setting the size and behavior of the output buffer
• Designating pages to handle JSP errors
• Controlling threading behavior

Including Files and Applets in JSP Pages

• Using jsp:include to include pages at request time
• Using <%@ include ... %> (the include directive) to include files at page translation time
• Understanding why jsp:include is usually better than the include directive
• Using jsp:plugin to include applets for the Java Plug-in

Using JavaBeans Components in JSP Documents

• Understanding the benefits of beans
• Creating beans
• Installing bean classes on your server
• Accessing bean properties
• Explicitly setting bean properties
• Automatically setting bean properties from request parameters
• Sharing beans among multiple servlets and JSP pages

Integrating Servlets and JSP: The Model View Controller (MVC) Architecture

• Understanding the benefits of MVC
• Using RequestDispatcher to implement MVC
• Forwarding requests from servlets to JSP pages
• Handling relative URLs
• Choosing among different display options
• Comparing data-sharing strategies

Simplifying Access to Java Code: The JSP 2.0 Expression Language

• Motivating use of the expression language
• Understanding the basic syntax
• Understanding the relationship of the expression language to the MVC architecture
• Referencing scoped variables
• Accessing bean properties, array elements, List elements, and Map entries
• Using expression language operators
• Evaluating expressions conditionally

Using and Deploying Web Applications

• Purpose of Web applications
• Structure of Web applications
• Setting up Web applications with Tomcat
• Giving custom addresses to servlets
• Sharing data among Web applications

Controlling Web Application Behavior with web.xml

• Location and purpose of web.xml
• Custom URLs
• Initialization parameters
• Preloading pages
• Welcome pages
• Error pages

Servlet and JSP Filters

• Filter basics
• Accessing the servlet context
• Using initialization parameters
• Blocking responses
• Modifying responses

Web Application Lifecyle Listeners

• Reason for listeners
• Monitoring creation and destruction of the servlet context
• Detecting changes in servlet context attributes
• Recognizing session creation and destruction
• Watching for changes in session attributes
• Combining activities

Creating Custom JSP Tag Libraries: The Basics

• Java-based tags
  • Components of a tag library
  • Basic tags
  • Tags that use body content
  • Tags that optionally use body content
• JSP-based tags (tag files)
  • Components of a tag library
  • Basic tags
  • Tags that use attributes
  • Tags that use body content

Custom JSP Tag Libraries: Advanced Topics

• Tags with dynamic attribute values
• Tags with complex objects for attributes
• Manipulating the tag body
• Looping tags
• Nested tags
• Using SAX and TagLibraryValidator to validate tag library syntax

"Classic" (JSP 1.2-Style) Tags

• Components of a tag library
• Basic tags
• Tags that use body content
• Tags that optionally use body content

 

 

The JSP Standard Tag Library (JSTL)

• Obtaining JSTL documentation and code
• The JSTL Expression Language
• Looping Tags
• Conditional Evaluation Tags
• Database Access Tags
• Other Tags

SCWCD Design Patterns

• Intercepting Filter
• Model-View-Controller
• Front Controller
• Service Locator
• Business Delegate
• Transfer Object