Java
- 1. By.., K.Rajalakshmi , Msc-IT Department of CS & IT Nadar saraswathi college of arts and science, Theni CONCEPTS OF ADVANCED JAVA PROGRAMMING JAVA SCRIPTS- SERVLET-JDBC-ETB-JSP
- 2. • Introduction • Java script • Servlet • JDBC • ETB • JSP
- 3. INTRODUCTION • Java is an high level programming language developed by SUN MICROSYSTEM. • It was originally designed for developing programs for set-top boxes and handled devices but later became a popular choice for creating web application. • The java syntax is similar to C++ but is strictly an object oriented programming language .
- 4. JAVA SCRIPT: • Java script is a scripting language that enables to create dynamically updating content, control multimedia, animate images and pretty much everything else…
- 5. SERVLET: • Servlet technology is used to create a web application (resides at server side and generate a dynamic web page) • Servlet technology is robust and scalable because of java language
- 6. WHAT IS SERVLET?: • Servlet is an API that provides many interface and classes including documentation. • Servlet is an interface that must be implemented for creating any servlet • Servlet is a class that extends the capabilities of the server and responds to the incoming request. It can respond to any request. • Servlet is a web component that is deployed on the server to create a dynamic web page.
- 8. JDBC: • JDBC API is a java API that can access any kind of tabular data especially data stored in a relational database. • JDBC works with java on a variety of platform, such as windows, Mac OS, and the various version of UNIX.
- 9. PURPOSE OF LEARNING JDBC: • JDBC stands for Java Data Base Connectivity • Its is an database independent connectivity between the java programming language and a wide range of database • Some commonly associated JDBC database usages are:
- 10. • Making a connection to a database • Creating SQL or MYSQL statements • Executing SQL or MYSQL queries in the database • Viewing & modifying the resulting records
- 11. APPLICATIONS OF JDBC: • It is specification that provides a complete set of interface that allows for portable access to an underlying database • Java can be used to write different types of executable such as: • Java application • Java applet • Java servlet • Java server pages(JSPs) • Enterprise JavaBeans(EJBs) • All these are able to use a JDBC driver to access a database and take advantage of the stored data.
- 12. ETB : • ETB stands for End of Transmission Block • A communication control character used to indicate the end of a block of data for communication purposes • ETB is used for blocking data where the block structure is not necessarily related to the processing format
- 13. JSP : • JSP technology is used to create web application just like servlet technology • It can be thought of as an extension to servlet because it provide more functionality than servlet such as expression language, JSTL etc.,
- 14. ADVANTAGE OF JSP OVER SERVLET: • There are many advantages of JSP over the servlet they are: • Extension to servlet • Easy to maintain • Fast development no need to recompile and redeploy • Less code than servlet
- 15. LIFECYCLE OF A JSP PAGE: • The JSP pages follow these phases: • Translation of JSP page • Compilation of JSP page • Class loading • Instantiation • Request processing • Destroy
- 16. CREATING SIMPLE JSP PAGE: • To create the first page, write some HTML codes as given below and save it by .jsp extension • To save this file as index .jsp • Put it in a folder and paste the folder in the web apps directory in apache tomcat to run the jsp page
- 17. LIFE CYCLE OF JSP:
- 18. SIMPLE EXAMPLE: <html> <body> <% out. Print(2 * 5):%> </body> </html> o/p: It will print 10 on the browser
- 19. HOW TO RUN A SIMPLE JSP PAGE: • Start the sever • Put the jsp file in a folder and deploy on the server • Visit the browser by the url • http://localhost:portno/contextroot/jspfile • For EG: http://localhost:8888/myapplication/index.jsp
- 21. Thank you …