Untitled

SIMPLE WEB APPLICATION USING SERVLET

Index.jsp

&lt;html&gt;

&lt;head&gt;

&lt;title&gt;welcome to login page&lt;/title&gt;

&lt;/head&gt;

&lt;body&gt;

&lt;form action=&quot;http://localhost:8084/simple1/NewServlet&quot; method=&quot;post&quot;&gt;

&lt;h1&gt;Login with your details &lt;/h1&gt;

&lt;p&gt; &lt;input type=&quot;text&quot; size=&quot;20&quot; name=&quot;username&quot;/&gt;&lt;/p&gt;

&lt;p&gt; &lt;input type=&quot;password&quot; size=&quot;20&quot; name=&quot;password&quot;/&gt;&lt;/p&gt;

&lt;p&gt; &lt;input type=&quot;submit&quot; value=&quot;Login&quot;&gt;&lt;/p&gt;

&lt;/form&gt;

&lt;/body&gt;

&lt;/html&gt;

NewServlet.jsp

import java.io.IOException;

import java.io.PrintWriter;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

public class NewServlet extends HttpServlet {

@Override

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protected void doPost(HttpServletRequest rq, HttpServletResponse rs)

throws ServletException, IOException

{

String u=rq.getParameter(&quot;username&quot;);

String p=rq.getParameter(&quot;password&quot;);

rs.setContentType(&quot;text/html&quot;);

PrintWriter pp = rs.getWriter();

pp.println(&quot;&lt;html&gt;&lt;head&gt; The given username and password &quot;);

pp.println(&quot;&lt;body&gt; &lt;p&gt;username:=&quot;+u+&quot;&lt;/p&gt;&quot;);

pp.println(&quot;&lt;p&gt;password:=&quot;+p+&quot;&lt;/p&gt;&quot;);

pp.close();

}

}

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OUTPUT

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SESSION LIFETIME USING COOKIES

NewServlet.jsp

import java.io.IOException;

import java.io.PrintWriter;

import java.util.Date;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.servlet.http.HttpSession;


public class NewServlet extends HttpServlet {

@Override

protected void doGet(HttpServletRequest rq, HttpServletResponse rs)

throws ServletException, IOException {

rs.setContentType(&quot;text/html&quot;);

PrintWriter out=rs.getWriter();

HttpSession session=rq.getSession(true);

Integer count=(Integer)session.getAttribute(&quot;NewServlet.HitCount&quot;);

if(count==null)

{

count=new Integer(1);

}

else

{

count=new Integer(count.intValue()+1);

}

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session.setAttribute(&quot;NewServlet.HitCount&quot;,count);

out.println(&quot;&lt;html&gt;&lt;html&gt;&lt;title&gt;Session example &lt;/title&gt;&lt;/head&gt;&quot;);

out.println(&quot;&lt;body&gt;&lt;h4&gt;Session server to &quot;+&quot;demonstrate session Tracking and its life

cycle &lt;/h4&gt;&quot;);

out.println(&quot;&lt;/br&gt; session status : &quot;);

if(session.isNew())

{

out.println(&quot;New session &lt;/br&gt;&quot;);}

out.println(&quot;HitCount for your current session is : &quot;+count);

out.println(&quot;&lt;/br&gt; &lt;h2&gt;some basic session information&lt;/h2&gt;&quot;);

out.println(&quot;session ID : &quot;+session.getId()+&quot;&lt;/br&gt;&quot;);

out.println(&quot;it is a new session: &quot;+session.isNew());

out.println(&quot;&lt;/br&gt;session creation time : &quot;+session.getCreationTime());

out.println(&quot;(&quot;+new Date(session.getCreationTime())+&quot;&lt;/br&gt;&quot;);

out.println(&quot;Last acessed Time : &quot;+session.getLastAccessedTime());

out.println(&quot;(&quot;+ new Date(session.getLastAccessedTime())+&quot;&lt;/br&gt;&quot;);

out.println(&quot;Max Inactive Time : &quot;+session.getMaxInactiveInterval()+&quot;&lt;/br&gt;&quot;);

out.println(&quot;session info as in cookie :

&quot;+rq.isRequestedSessionIdFromCookie()+&quot;&lt;/br&gt;&quot;);

out.println(&quot;&lt;/body&gt;&lt;/html&gt;&quot;);

}

}

}

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OUTPUT

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SESSION TRACKING IN SERVLET

NewServlet1.java

import java.io.IOException;

import java.io.PrintWriter;

import java.util.ArrayList;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.servlet.http.HttpSession;

public class NewServlet1 extends HttpServlet {

@Override

protected void doGet(HttpServletRequest rq, HttpServletResponse rs)

throws ServletException, IOException {

HttpSession s=rq.getSession();int itemcount=0;

ArrayList cart;

cart = (ArrayList)s.getAttribute(&quot;cart&quot;);

if(cart!=null)

{

itemcount=cart.size();

}

rs.setContentType(&quot;text/html&quot;);

PrintWriter p=rs.getWriter();

p.println(&quot;&lt;html&gt;&lt;head&gt;&lt;title&gt; shopping cart 1 &lt;/title&gt;&lt;/head&gt;&lt;body&gt;&quot;);

p.println(&quot;&lt;h1&gt;Welcome to the shopping cart&lt;/h1&gt;&quot;);

p.println(&quot;&lt;p&gt;You&#39;ve &quot;+itemcount+&quot; items in your cart.&lt;/p&gt;&quot;);

p.println(&quot;&lt;form action=\&quot;&quot;);

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p.println(rs.encodeURL(&quot;http://localhost:8084/simple1/NewServlet&quot;));

p.println(&quot;\&quot;method=\&quot;post\&quot;&gt;&quot;);

p.println(&quot;&lt;p&gt;&lt;input type=checkbox name=item value=java&gt;&quot;);

p.println(&quot;Item1:JAVA &lt;/p&gt;&quot;);

p.println(&quot;&lt;p&gt;&lt;input type=checkbox name=item value=c&gt;&quot;);

p.println(&quot;Item2:c &lt;/p&gt;&quot;);

p.println(&quot;&lt;p&gt;&lt;input type=checkbox name=item value=c++&gt;&quot;);

p.println(&quot;Item3:C++ &lt;/p&gt;&quot;);

p.println(&quot;&lt;p&gt;&lt;input type=checkbox name=item value=C#&gt;&quot;);

p.println(&quot;Item4:C# &lt;/p&gt;&quot;);

p.println(&quot;&lt;p&gt;&lt;input type=submit value=Add to cart&gt;&quot;);

p.println(&quot;&lt;/form&gt;&lt;/body&gt;&lt;html&gt;&quot;);

p.close();

}

NewServlet.java

import java.io.IOException;

import java.io.PrintWriter;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.servlet.http.HttpSession;

import java.util.*;

public class NewServlet extends HttpServlet {

@Override

protected void doPost(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

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HttpSession ses=request.getSession(true);

ArrayList cart=(ArrayList)ses.getAttribute(&quot;cart&quot;);

if(cart==null)

{

cart=new ArrayList();

ses.setAttribute(&quot;cart&quot;,cart);

}

PrintWriter out=response.getWriter();

response.setContentType(&quot;text/html&quot;);

String[] itemselected;

String itemname;

itemselected=request.getParameterValues(&quot;item&quot;);

if(itemselected!=null)

{

for(int i=0;i&lt;itemselected.length;i++)

{

itemname=itemselected[i];


cart.add(itemname);

}

}

//print the contents of the cart

out.println(&quot;&lt;html&gt;&lt;head&gt;&lt;title&gt;Shopping cart contents&lt;/title&gt;&lt;/head&gt;&quot;);

out.println(&quot;&lt;body&gt;&quot;);

out.println(&quot;&lt;form action=\&quot;&quot;);

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out.println(response.encodeURL(&quot;/simple1/NewServlet1&quot;));

out.println(&quot;\&quot;method=\&quot;post\&quot;&gt;&quot;);

out.println(&quot;&lt;h1&gt;Items currently in your cart&lt;/h1&gt;&quot;);

out.println(&quot;&lt;hr&gt;&quot;);

Iterator iterator=cart.iterator();

while(iterator.hasNext())

{

out.println(&quot;&lt;p&gt;&quot;+iterator.next()+&quot;&lt;/p&gt;&quot;);

}

out.println(&quot;&lt;hr&gt;&quot;);

out.println(&quot;&lt;a href=\&quot;&quot;);

out.println(response.encodeURL(&quot;/simple1/NewServlet1&quot;));

out.println(&quot;\&quot;&gt;Back&lt;/a&gt;&quot;);

out.println(&quot;&lt;/form&gt;&quot;);

out.println(&quot;&lt;hr&gt;&quot;);

out.println(&quot;&lt;/body&gt;&lt;/html&gt;&quot;);

out.close();

}

}


OUTPUT


JAVA MAIL

NewMain.java

import java.util.Date;

import java.util.Properties;

import javax.mail.Message;

import javax.mail.Session;

import javax.mail.internet.InternetAddress;

import javax.mail.internet.MimeMessage;

class NewMain extends Object

{

public static void main(String[] args)

{

try

{

Properties pr=new Properties();

pr=System.getProperties();

pr.put(&quot;mail.transportProtocol&quot;,&quot;smtp&quot;);

pr.put(&quot;mail.smtp.host&quot;,&quot;&quot;);

pr.put(&quot;mail.smtp.port&quot;,&quot;25&quot;);

Session ss=Session.getInstance(pr);

Message msg=new MimeMessage(ss);

msg.setFrom(new InternetAddress(&quot;bibinbaby@live.in&quot;));


msg.setRecipients(Message.RecipientType.TO,InternetAddress.parse(&quot;bibinbaby@live.in&quot;));

msg.setSentDate(new Date());

msg.setText(&quot;welcome to java mail &quot;);

msg.writeTo(System.out);

System.out.println(&quot;\n The Message is Recieved&quot;);


}

catch(Exception e)

{

System.out.println(e);

}

}

}

OUTPUT


Message-ID: &lt;17934197.0.1362221175901.JavaMail.&quot;BIBIN BABY&quot;@BIBIN&gt;

MIME-Version: 1.0

Content-Type: text/plain; charset=us-ascii

Content-Transfer- Encoding: 7bit

welcome to java mail

The Message is Received

SERVLET APPLET COMMUNICATION

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NewApplet.java

package javaapplication1;

import java.applet.Applet;

import java.awt.*;

import java.awt.event.*;

import java.io.InputStream;

import java.net.URL;

import java.util.Scanner;

public class NewApplet extends Applet implements ActionListener {

TextField t1,t2;

@Override

public void init() {

setLayout(new GridLayout(3,1));

t1=new TextField();

t2=new TextField();

Button b= new Button(&quot;FIB&quot;);

add(t1); add(t2); add(b);

b.addActionListener(this);

}

public void actionPerformed(ActionEvent a)

{

try

{

URL url=new URL(&quot;http://localhost:8084/simple1/NewServlet3?&quot;+t1.getText());

InputStream is=url.openStream();

Scanner s=new Scanner(is);

t2.setText(s.nextLine());

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}

catch(Exception e)

{

t2.setText(e.toString());

}

}}

NewServlet3.java

import java.io.IOException;

import java.io.PrintWriter;

import java.util.StringTokenizer;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

public class NewServlet3 extends HttpServlet

{

@Override

protected void doGet(HttpServletRequest rq, HttpServletResponse rs)

throws ServletException, IOException {

rs.setContentType(&quot;text/html&quot;);

PrintWriter out=rs.getWriter();

try

{


String s=rq.getQueryString();

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StringTokenizer st;

st=new StringTokenizer(s);

int n=Integer.parseInt(st.nextToken());

int a=0,b=1,c;

out.print(a+&quot; &quot;);

out.print(b+&quot; &quot;);

for(int i=2;i&lt;n;i++)

{

c= a+b;

a=b;

b=c;

out.print(c+&quot; &quot;);

}

}

finally

{

out.close();

}

}

}

OUTPUT


JAVA SERVER PAGE

F01.jsp

&lt;%@page contentType=&quot;text/html&quot; pageEncoding=&quot;UTF-8&quot;%&gt;

&lt;!DOCTYPE HTML&gt;

&lt;html&gt;

&lt;head&gt;Login&lt;/head&gt;

&lt;body&gt;

&lt;form action=&quot;fo2.jsp&quot; method=&quot;post&quot;&gt;

&lt;p&gt;EMAIL ID:&lt;input type=&quot;textbox&quot; name=&quot;user&quot;/&gt;&lt;/br&gt;&lt;/p&gt;

&lt;p&gt;PASSWORD:&lt;input type=&quot;password&quot; name=&quot;pwd&quot;/&gt;&lt;/br&gt;&lt;/p&gt;

&lt;input type=&quot;SUBMIT&quot; value=&quot;submit&quot;/&gt;

&lt;/form&gt;

&lt;/body&gt;

&lt;/html&gt;

Fo2.jsp

&lt;%@page contentType=&quot;text/html&quot; pageEncoding=&quot;UTF-8&quot;%&gt;

&lt;!DOCTYPE HTML&gt;

&lt;%

if((request.getParameter(&quot;user&quot;).equals(&quot;bb&quot;))&amp;&amp;

(request.getParameter(&quot;pwd&quot;).equals(&quot;bb&quot;)))

{%&gt;

&lt;jsp:forward page=&quot;fo3.jsp&quot;/&gt;

&lt;% } else { %&gt;

&lt;%@include file=&quot;fo1.jsp&quot;%&gt;a

&lt;% } %&gt;

Fo3.jsp

&lt;%@page contentType=&quot;text/html&quot; pageEncoding=&quot;UTF-8&quot;%&gt;

&lt;!DOCTYPE HTML&gt;

&lt;html&gt;

&lt;head&gt;&lt;/head&gt;

&lt;body&gt;

&lt;pre&gt; HELLO USER &lt;/pre&gt;

&lt;p&gt;&lt;%=request.getParameter(&quot;user&quot;)%&gt;&lt;/p&gt;

&lt;pre&gt;you are successfully logged &lt;/pre&gt;

&lt;/body&gt;

&lt;/html&gt;

OUTPUT

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