Client server 01
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This document provides an introduction to web programming with Java. It discusses the past, present, and future of servlets and JSPs. It outlines the objectives of the course, which are to introduce web applications, three approaches to Java web development (servlets/JSPs, JSF, and Spring Framework), and servlet/JSP web development specifically. It also describes the typical components and architecture of a servlet/JSP application, including the web and database servers, directories, and tools used.
Client server 01
- 1. Introductionto web programming with java Pemrograman Client Server - Ch. 01 2017
- 2. intro • PAST, JAVA servlets and JSP were the dominant tech. for building web applications,es for large enterprises for many years. • NOW, although they’re no longer dominant, they still have some advantages over the newer approach. • FUTURE, a quick search on a typical job website shows that there is still plenty of demand for servlet and JSP developers. In add, many of the skills for working with servlet and JSPs also apply to newer approaches to JAVA web development, such as JSF (JAVA Server Faces).
- 3. Course objs • An introduction to web applications • Three approaches for JAVA web applications • An introduction to servlet/JSP web development • Perspective
- 4. Section 01 “A web application is a set of web pages that are generated in response to user requests.”
- 7. Section 01 • The components of a web application – Client/Server application – Client will access it using a web browser (user interface) – The web application itself stored on server computer; this server will runs a web server software to enables it send the web pages (Apache) and DBMS (like: MySQL, ORACLE, etc) as database server.
- 8. Section 01static page • HTML is the lang. that the web browser converts into the web pages of web appl. • Static means the pages will always the same each time they are viewed, in other word the pages don’t response to user input. • HTTP is the protocol that the web browsers and web servers use to communicate using HTTP Request/Response
- 9. Section 01dynamic page • Dynamic web page is an HTML docs that generated by web appl. ussually based on a/some params. those are sent by the web browser. • Most modern web appl. store and retrieve data from a database that runs on database server. • The web browser only take responsibility for .htm/.html docs.
- 10. Section 02 • Servlet/JSP – is a lower level API that does less work for the programmer – Provides a hig degree of control over html/css/js that’s returned to the browser • JSF – is a lower level API that does more work for the programmer – Makes it more difficult to control the html/css/js that’s returned to the browser • SPRING Framework – is a lower level API that does more work for the programmer – Provides a hig degree of control over html/css/js that’s returned to the browser
- 11. Section 02 • Servlet/JSP – Servlets store the JAVA code that does the server-side processing, while JSP store the HTML that defines the user interface. – To run a web appl. that uses these tech. you only need to work with the servlet/JSP part of the JAVA EE specs. – This servlet/JSP API is the foundation for the other two approaches; as a result, it’s a good place to get started with JAVA Web Programming.
- 12. Section 03 • A servlet/JSP appl. must have web server and servlet/JSP engine, also known as JSP container to process the HTTP Requset and return HTTP Response (TOMCAT)
- 13. Section 03 • Most servlet/JSP appl. use a database to store the data that’d used by the appl. (MySQL)
- 14. Section 03 • For a servlet/JSP engine to work, it should have access to JAVA’s JDK.
- 15. Section 03architecture servlet/jsp appl
- 17. Section 03tools • Netbeans (IDE); • TOMCAT(inc webserver named COYOTE, servlet/JSP engine named CATALINA) • MySQL (Database Server)
- 18. Perspective • An introduction to web applications • Three approaches for JAVA web applications • An introduction to servlet/JSP web development