Podcast
Questions and Answers
Which of the following is a popular web server software for Java web applications?
Which of the following is a popular web server software for Java web applications?
Static web pages can change based on user interactions.
Static web pages can change based on user interactions.
False
What is the primary language used to render web pages in a web application?
What is the primary language used to render web pages in a web application?
HTML
Dynamic web pages are created based on the user's ______ or preferences.
Dynamic web pages are created based on the user's ______ or preferences.
Signup and view all the answers
Match the following web page types with their characteristics:
Match the following web page types with their characteristics:
Signup and view all the answers
What is the primary function of web server software?
What is the primary function of web server software?
Signup and view all the answers
Tomcat is a paid servlet/JSP engine developed by Microsoft.
Tomcat is a paid servlet/JSP engine developed by Microsoft.
Signup and view all the answers
What does JSP stand for?
What does JSP stand for?
Signup and view all the answers
The software that allows a web server to run servlets and JSPs is known as a __________.
The software that allows a web server to run servlets and JSPs is known as a __________.
Signup and view all the answers
Match the following components with their functions:
Match the following components with their functions:
Signup and view all the answers
Study Notes
Web Programming
- Web applications are sets of web pages created in response to user requests.
- Common web applications include search engines, online stores, auctions, news sites, and discussion groups.
Components of Web Applications
- Web applications are client-server applications.
- Components of a web application are either on the client computer or the server computer.
- Key components include a web browser, internet connection, a web server, and a database server.
Web Application Components (Continued)
- Web applications are stored on the server computer.
- Server software allows the sending of web pages to browsers.
- Popular server software includes Apache HTTP Server.
- Most web applications use databases, and servers often incorporate a DBMS (like Oracle or MySQL).
- A DBMS doesn't need to be on the same server as the web server.
Static Web Pages
- Static web pages display the same information regardless of user input.
- They are like newspapers pages, content remains fixed.
- Information is not dynamic, rather static and fixed.
HTML
- HTML (HyperText Markup Language) is the language browsers use to render web pages.
- Static web pages remain the same each time they are displayed.
- The process begins when a user enters an address or clicks a link. The browser uses HTTP (Hypertext Transfer Protocol) to send a request to a website server.
Dynamic Web Pages
- Dynamic web pages change according to user choices or customized parameters.
- Changes are based on parameters sent from the page to the server.
- Server generates dynamic pages and sends HTML back to the browser.
Java Web Applications
- Java web applications require server software.
- A web server is an internet server that processes HTTP requests to serve content.
- Popular web servers include Apache, IIS Web Server, Nginx Web Server, LiteSpeed Web Server, Tomcat (a free, open-source servlet/JSP engine).
JSP (Java Server Pages)
- JSP is an acronym for Java Server Pages.
- JSP technology combines static HTML with dynamically generated content from servlets.
- Easier to write Java code with servlets.
Servlets
- Servlets are Java classes running on a server.
- They process dynamic web pages.
- When requested, the JSP engine converts JSP code into servlet code.
- Subsequent requests run corresponding servlets.
- Contain essential methods including the init(), service() (which includes doGet() and doPost()), and destroy() methods essential for a servlet's operation.
Model-View-Controller (MVC)
- Model-View-Controller is a pattern for programming problems.
- Has three layers.
- Model: Business logic layer, often using JavaBeans. It processes the data.
- View: Presentation logic. Typically presents data using HTML or JSPs.
- Controller: Manages application flow, often done by servlets. Reads parameters, updates Model, stores data.
Java Web Application Architecture
- This architecture uses three layers: Presentation, Business Rules, and Data Access.
- Presentation layer (HTML, JSP) handles the look and feel.
- Business rules layer uses servlets.
- Data access layer stores and retrieves data, sometimes from relational databases.
JSP vs. ASP and PHP
- JSPs use Java for dynamic parts, offering portability and power.
- ASPs use Microsoft technology, and PHP is an open-source scripting language, offering alternative approaches.
- JSPs are preferred when complex applications with reusable components are required.
Server-Side Includes (SSIs) and Static HTML
- Server-Side Includes (SSIs) are a technology for embedding dynamic content into static pages.
- JSPs offer more flexible options regarding the stage of the HTTP response.
- Static HTML pages usually don't contain dynamically generated content.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Explore the fundamentals of web applications, including their components and operation. This quiz covers the essentials of client-server architecture and distinguishes between static and dynamic web pages. Perfect for students learning about web development.
