VTU Study Materials

14. An EJB application that demonstrates MDB.

 package mybeans;  
 import javax.ejb.ActivationConfigProperty;  
 import javax.ejb.MessageDriven;  
 import javax.jms.Message;  
 import javax.jms.MessageListener;  
 @MessageDriven(mappedName = "jms/helloserver", activationConfig = {  
   @ActivationConfigProperty(propertyName = "acknowledgeMode", propertyValue = "Auto-acknowledge"),  
   @ActivationConfigProperty(propertyName = "destinationType", propertyValue = "javax.jms.Queue")  
 })  
 public class msgbean1 implements MessageListener {  
   public msgbean1() {  
   }  
   @Override  
   public void onMessage(Message message)   
   {  
    try{  
      System.out.println("HELLO "+ message.getStringProperty("name"));  
    }catch(Exception e){}  
   }  
 }  
 --------------------  
 //msgclient.java  
 import javax.annotation.Resource;  
 import javax.jms.*;  
 public class msgclient   
 {  
   @Resource(mappedName = "jms/helloserver")  
   private static Queue helloserver;  
   @Resource(mappedName = "jms/helloserverFactory")  
   private static ConnectionFactory helloserverFactory;  
   public static void main(String[] args) throws JMSException  
   {  
      Connection connection = helloserverFactory.createConnection();  
      Session  session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);  
      MessageProducer messageProducer = session.createProducer(helloserver);  
      Message message=session.createTextMessage();  
      message.setStringProperty("name","Students");  
      messageProducer.send(message);  
      System.exit(0);  
    }  
   }

13. An EJB application that demonstrates Entity Bean.

 index.jsp  
 <html>  
   <body>  
     <form action="serv13" method="post">  
        Enter Discount Code <input type="text" name="dcode">  
        <input type="submit" value="Find Rate">  
     </form>  
   </body>  
 </html>  
 ----------------------------------------------------  
 // serv13.java  
 import java.io.IOException;  
 import java.io.PrintWriter;  
 import javax.ejb.EJB;  
 import javax.servlet.ServletException;  
 import javax.servlet.http.HttpServlet;  
 import javax.servlet.http.HttpServletRequest;  
 import javax.servlet.http.HttpServletResponse;  
 import serv.DiscountCodeFacade;  
 public class serv13 extends HttpServlet {  
   @EJB  
   private DiscountCodeFacade discountCodeFacade;  
   protected void doPost(HttpServletRequest request, HttpServletResponse response)  
       throws ServletException, IOException {  
     response.setContentType("text/html;charset=UTF-8");  
     PrintWriter out = response.getWriter();  
     try {  
       out.println("<html>");  
       out.println("<body>");  
   out.println("<h1>Disount Rate :" + discountCodeFacade.find(request.getParameter("dcode").charAt(0)).getRate() + "</h1>");  
       out.println("</body>");  
       out.println("</html>");  
     } finally {        
       out.close();  
     }  
   }  
 }

12. An EJB application that demonstrates Session Bean

 //hellobean.java  
 package abcd;  
 import javax.ejb.Stateless;  
 import javax.ejb.LocalBean;  
 @Stateless  
 @LocalBean  
 public class hellobean   
 {  
   public String sayhello(String nm)  
  {  
     return "Hello  " + nm+ "   From session bean";  
   }  
 }  
 ----------------------------------------------  
 //serv12.java  
 package abcd;  
 import java.io.IOException;  
 import java.io.PrintWriter;  
 import javax.ejb.EJB;  
 import javax.servlet.ServletException;  
 import javax.servlet.http.HttpServlet;  
 import javax.servlet.http.HttpServletRequest;  
 import javax.servlet.http.HttpServletResponse;  
 public class serv12 extends HttpServlet {  
   @EJB  
   private hellobean hellobean;  
   protected void doPost(HttpServletRequest request, HttpServletResponse response)  
       throws ServletException, IOException {  
       response.setContentType("text/html;charset=UTF-8");  
       PrintWriter out = response.getWriter();  
     try {  
       out.println("<html>");  
       out.println("<body>");  
       out.println("<h1>"+hellobean.sayhello(request.getParameter("uname")) + "</h1>");  
       out.println("</body>");  
       out.println("</html>");  
     } finally {        
       out.close();  
     }  
   }  
 }  
 ---------------------------------------------  
 //index.jsp  
 <html>  
   <body>  
     <form action="serv12" method="post">  
       Enter name <input type="text" name="uname">  
       <input type="submit" value="Execute">  
     </form>  
   </body>  
 </html>

11. Write a JAVA JSP Program which implements nested tags and also use TagSupport Class

 index.jsp  
 <%@taglib prefix="d" uri="/WEB-INF/tlds/abcd.tld"%>  
 <%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>  
 <html>  
   <body>  
     <d:tag1>  
       <c:out value="this is inner tag"></c:out>        
     </d:tag1>  
   </body>  
 </html>  
 --------------------------------  
 tag1.java  
 package mytag;  
 import java.io.*;  
 import javax.servlet.jsp.tagext.*;  
 import javax.servlet.jsp.*;  
 public class tag1 extends TagSupport  
 {  
 public int dostartTag() throws JspException  
   {  
   try  
   {  
    pageContext.getOut().write("hello dis is inside customer tag class");  
   }  
   catch(IOException e)  
   {  
     throw new JspException("Error");  
   }  
   return EVAL_BODY_INCLUDE;  
   }  
 }

10. Write a JAVA JSP Program which uses tag to run a applet.

 applet1.java  
 import java.applet.*;  
 import java.awt.*;  
 public class applet1 extends Applet  
 {  
  public void init()  
  {  
    setBackground(Color.blue);  
  }  
  public void paint(Graphics g)  
  {  
    g.drawString("Welcome to Applet !!!! ", 50,50);  
  }  
 }  
 -------------------------------------------------------------  
 index.jsp  
 <html>  
   <head>  
     <title>Prgram 10 </title>  
   </head>  
   <body>  
     <h1> Welcome this is an applet demo </h1>  
    <jsp:plugin type="applet" code="applet1.class" height="100" width="400" codebase="http://localhost:41274/Prg10/">  
      <jsp:fallback> Unable to load applet </jsp:fallback>  
    </jsp:plugin>  
   </body>  
 </html>

9. Write a JAVA JSP Program to get student information through a HTML and create a JAVA Bean Class, populate Bean and display the same information through another JSP.

 //index.jsp  
 <html>  
  <head>Student Info Entry Form</head>  
  <body>  
  <form action ="jsp9.jsp" method = "post">  
     Registration Number : <input type = "text" name = "regno" />  
     <br>  
     Name : <input type = "text" name = "uname" />  
     <br>  
     Address :<input type = "text" name = "address" />  
     <br>  
      <input type ="submit" value ="Register" />  
   </form>  
  </body>  
 </html>  
 --------------------------------------------------------  
 //jsp9.jsp  
 <html>  
  <body>  
     <jsp:useBean id="std" scope="request" class="ourbeans.Student" />  
     <jsp:setProperty name="std" property="*"/>  
     <jsp:forward page="welcomeinfo.jsp"/>  
  </body>  
 </html>  
 --------------------------------------------------------  
 // welcomeinfo.jsp  
 <html>  
  <body>  
      <h1>Welcome Your Info </h1>  
      <jsp:useBean id="std" scope="request" class="ourbeans.Student"/>  
      User Name : <jsp:getProperty name="std" property="uname"/><br>  
      Registration Number : <jsp:getProperty name="std" property="regno"/><br>  
      Address : <%out.print(std.getaddress());%>   
  </body>  
 </html>  
 //Student.java  
 package ourbeans;  
 public class Student  
 {  
      public String uname;  
      public int regno;  
      public String address;  
     public Student(){}  
     public void setuname(String s)  
           {uname = s;}  
      public String getuname()  
           {return uname;}  
      public void setregno(int rg)  
           {regno=rg;}  
      public int getregno()  
           {return regno;}  
      public void setaddress(String ad)  
           {address = ad;}  
      public String getaddress()  
           {return address;}  
 }

8b. Write a JAVA JSP Program to implement verification of a particular user login and display a welcome page.

 8b. Write a JAVA JSP Program to implement verification of a particular user login and display a welcome page.  
 //index.jsp  
 <html>  
   <head>  
     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">  
     <title>JSP Page</title>  
   </head>  
   <body>  
   <form method="post" action="jsp8b.jsp" >  
     User name <input type="text" name="uname" />  
     Password <input type="password" name="pwd" />  
     <input type="submit" value="Login" />  
   </form>  
   </body>  
 </html>  
 //jsp8b.jsp  
 <%@page contentType="text/html" pageEncoding="UTF-8"%>  
 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"  
   "http://www.w3.org/TR/html4/loose.dtd">  
 <html>  
   <head>  
     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">  
     <title>JSP Page</title>  
   </head>  
   <body>  
     <%  
       String u=request.getParameter("uname");  
       String p=request.getParameter("pwd");  
       if ((u.equals("admin"))&& (p.equals("rose")))  
            out.println("Welcome "+u+" you are authenticated");  
        else  
            out.println("Failed Login Attempt");  
     %>  
   </body>  
 </html>

Thursday, 12 February 2015

14. An EJB application that demonstrates MDB.

13. An EJB application that demonstrates Entity Bean.

12. An EJB application that demonstrates Session Bean

11. Write a JAVA JSP Program which implements nested tags and also use TagSupport Class

10. Write a JAVA JSP Program which uses tag to run a applet.

9. Write a JAVA JSP Program to get student information through a HTML and create a JAVA Bean Class, populate Bean and display the same information through another JSP.

8b. Write a JAVA JSP Program to implement verification of a particular user login and display a welcome page.