Java Training Ahmedabad , Introduction of java web development
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This document provides an introduction to Java web development. It discusses web development in general and divides it into client-side coding and server-side coding. It then lists some common server-side languages like ASP, PHP, ColdFusion and ASP.NET. It provides more details on servlets and Java Server Pages (JSP), describing them as Java classes that handle HTTP requests and responses on the server. It includes an example of using Java Database Connectivity (JDBC) to connect to a database and retrieve records from a table to display on a web page.
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Java Training Ahmedabad , Introduction of java web development
- 1. By: NicheTech http://www.nichetechinstitute.com/ © NicheTech Computer Solutions Pvt ltd Introduction of Java Web Development
- 2. Web Development The term Web development is used for several different activities which are linked to the developing of a website especially for the WWW which is the World Wide Web or also called as an intranet. The Web development strategies include the business of the e-commerce, the web designing, the web content development, the client and sever-side coding and also the configuration of the web server. The web development can be branched into two main categories, the Client Side Coding and the Server Side Coding. The roles of a web developer generally include the Graphic and Web designing, information architecture and the copyediting with the usability of the web and the optimization of the search engine.
- 3. Types of server side web development languages ASP (Active Server Page) PHP (Hypertext Preprocessor) Cold Fusion ASP.NET Servlet/Jsp
- 4. What is Servlet A servlet is any Java class that can be invoked and executed on a server, usually on behalf of a client. A servlet works on the server, while an applet works on the client. An HTTP servlet is a Java class that handles an HTTP request and delivers an HTTP response. HTTP servlets reside on an HTTP server and must extend the Java javax.servlet.http.Http Servlet Class so that they can run in a generic servlet engine framework.
- 5. What is JSP? JSP (a TLA for Java Server Pages) is a server- side implementation of the java language. Very similar in structure to ASP, it enables the developer to build dynamic websites and incorporate the flexibility of java, XML etc. One of the most powerful features of JSP is that you can access JavaBeans and Enterprise JavaBeans (EJB) components from a JSP file. JavaBeans can be class files, serialized Beans, Beans that are dynamically generated by a servlet, or a servlet itself. Each JSP is automatically compiled to a servlet by the JSP engine, the first time it is requested, and then executed
- 6. Java Database Connectivity Example
- 7. connectivityClaas.java //Required import packages import java.io.*; import java.util.*; import javax.sql.*; import javax.servlet.*; import javax.servlet. Http.*; import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement;
- 8. //class Nmae Declration public class connectivityClaas extends HttpServlet { // connecting to database object Connection cn = null; Statement st = null; ResultSet rs = null; try { Class.forName("com.mysql.jdbc.Driver"); con =DriverManager.getConnection (“localhost/Testexample", "root","root"); stmt = con.createStatement(); rs = stmt.executeQuery("SELECT * FROM stud"); {
- 9. // displaying records while(rs.next()){ out.println(“No::”); out.println("ttt"); out.println(“ Name::“); out.println("<br>"); out.println(rs.getObject(1).toString()); out.println("ttt"); out.println(rs.getObject(2).toString()); out.println("<br>"); } } catch (Exception){} }
- 10. Thanks Surendra Kunwar NicheTech Com Sol Pvt Ltd Our Sites 1) http://www.nichetechsolutions.com/ (Development) 2) http://www.nichetechinstitute.com/ (NicheTech Gurukul) 3) http://www.liveprojecttraining.in/ ( Live Project Training Details) 4) https://www.facebook.com/nichetechinstituteIndi a ( For Daily Updates)