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HTTP REQUEST

Ex. No.: 8.a Name: M Vignesh

Date: Reg. No. 30707104112

import java.net.*;

import java.io.*;

import javax.swing.*;

import java.awt.*;

public class SourceViewer3

{

public static void main (String[] args)

{

try

{

URL u = new URL(args[0]);

HttpURLConnection uc = (HttpURLConnection)

u.openConnection( );

int code = uc.getResponseCode( );

String response = uc.getResponseMessage( );

System.out.println("HTTP/1.x " + code + " " + response);

for (int j = 1; ; j++)

{

String header = uc.getHeaderField(j);

String key = uc.getHeaderFieldKey(j);

if (header == null || key == null) break;

System.out.println(uc.getHeaderFieldKey(j) + ": " + header);

}

InputStream in = new BufferedInputStream(uc.getInputStream( ));

Reader r = new InputStreamReader(in);

int c;

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while ((c = r.read( )) != -1)

{

System.out.print((char) c);

}

}

catch (MalformedURLException ex)

{

System.err.println(args[0] + " is not a parseable URL");

}

catch (IOException ex)

{

System.err.println(ex);

}

}

}

OUTPUT:

C:\IPLAB>javac SourceViewer3.java

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C:\IPLAB>java SourceViewer3 http://www.hotmail.com

HTTP/1.x 302 FoundDate: Wed, 06 Oct 2010 14:51:40 GMTServer: Microsoft-IIS/6.0

P3P: CP="BUS CUR CONo FIN IVDo ONL OUR PHY SAMo TELo"xxn: -2MSNSERVER: H: BAY0-DP4-2 V: 15.3.2529.827 D: 2010-08-27T20:01:22Location: https://login.live.com/login.srf?wa=wsignin1.0&rpsnv=11&ct=1286376700&rver=6.0.5285.0&wp=MBI&wreply=http:%2F%2Fmail.live.com%2Fdefault.aspx&lc=1033&id=64855&mkt=en-USSet-Cookie: KSC=; domain=.mail.live.com; expires=Thu, 01-Jan-197012:00:01 GMT; path=/Set-Cookie: kr=; domain=.mail.live.com; expires=Thu, 01-Jan-197012:00:01 GMT; path=/

Set-Cookie: afu=; domain=.mail.live.com; expires=Thu, 01-Jan-197012:00:01 GMT; path=/Set-Cookie: bsc=; domain=.mail.live.com; expires=Thu, 01-Jan-197012:00:01 GMT; path=/Set-Cookie: rru=; domain=.mail.live.com; expires=Thu, 01-Jan-197012:00:01 GMT; path=/Set-Cookie: prc=; domain=.mail.live.com; expires=Thu, 01-Jan-197012:00:01 GMT; path=/Set-Cookie: mt=; domain=.mail.live.com; expires=Thu, 01-Jan-197012:00:01 GMT; path=/

Set-Cookie: KVC=; domain=.mail.live.com; expires=Thu, 01-Jan-197012:00:01 GMT; path=/Set-Cookie: DWN=; domain=.mail.live.com; expires=Thu, 01-Jan-197012:00:01 GMT; path=/Cache-Control: no-cache, no-storePragma: no-cacheExpires: -1Content-Type: text/html; charset=utf-8Content-Length: 315Object movedObject moved to here.

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SMTP

Ex.No: Name: M Vignesh

Date: Reg.No:30707104112

import javax.mail.*;

import javax.mail.internet.*;

import java.util.*;

public class Assimilator {

public static void main(String[] args) {

try {

Properties props = new Properties( );

props.put("mail.host", "mail.rajalakshmi.org");

Session mailConnection = Session.getInstance(props, null);

Message msg = new MimeMessage(mailConnection);

Address billgates = new InternetAddress("[email protected]", "Bill Gates");

Address bhuvangates = new InternetAddress("[email protected]");

msg.setContent("Wish You a Happy New Year 2008", "text/plain");

msg.setFrom(billgates);

msg.setRecipient(Message.RecipientType.TO, bhuvangates);

msg.setSubject("Greetings");

Transport.send(msg);

}

catch (Exception ex) {

ex.printStackTrace( );

}

}

}

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Output:-

C:\IPLAB>javac Assimilator.java

C:\IPLAB>java Assimilator

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File Transfer Protocol

Ex.No: 8.c Name: M Vignesh

Date: Reg.No:30707104112

// FileServer.java

import java.net.*;

import java.io.*;

public class FileServer {

ServerSocket serverSocket;

Socket socket;

int port;

FileServer() {

this(9999);

}

FileServer(int port) {

this.port = port;

}

void waitForRequests() throws IOException

{

serverSocket = new ServerSocket(port);

while (true)

{

System.out.println("Server Waiting...");

socket = serverSocket.accept();

System.out.println("Request Received From " +socket.getInetAddress()

+"@"+socket.getPort());

new FileServant(socket).start();

System.out.println("Service Thread Started");

}

}

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try {

new FileServer().waitForRequests();

}

catch (IOException e) {

e.printStackTrace();

}

}

}

// FileClient.java

import java.net.*;

import java.io.*;

public class FileClient

{

String fileName;

String serverAddress;

int port;

Socket socket;

FileClient() {

this("localhost", 9999, "Sample.txt");

}

FileClient(String serverAddress, int port, String fileName) {

this.serverAddress = serverAddress;

this.port = port;

this.fileName = fileName;

}

void sendRequestForFile() throws UnknownHostException, IOException {

socket = new Socket(serverAddress, port);

System.out.println("Connected to Server...");

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PrintWriter writer = new PrintWriter(new OutputStreamWriter(socket.getOutputStream()));

writer.println(fileName);

writer.flush();

System.out.println("Request Sent...");

getResponseFromServer();

socket.close();

}

void getResponseFromServer() throws IOException {

BufferedReader reader = new BufferedReader(new

InputStreamReader(socket.getInputStream()));

String response = reader.readLine();

if(response.trim().toLowerCase().equals("filenotfound")) {

System.out.println(response);

return;

}

else {

BufferedWriter fileWriter = new

BufferedWriter(new FileWriter("Recdfile.txt"));

do {

FileWriter.write(response);

FileWriter.flush();

}

while((response=reader.readLine())!=null);

FileWriter.close();

}

}


try {

new FileClient().sendRequestForFile();

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}

catch (UnknownHostException e) {


}



}

}

}

// FileServent.java

import java.net.*;

import java.io.*;

public class FileServant extends Thread {

Socket socket;

String fileName;

BufferedReader in;

PrintWriter out;

FileServant(Socket socket) throws IOException {

this.socket = socket;

in = new BufferedReader(new

InputStreamReader(socket.getInputStream()));

out = new PrintWriter(new OutputStreamWriter(socket.getOutputStream()));

}

public void run() {

try {

fileName = in.readLine();

File file = new File(fileName);

if (file.exists()) {

BufferedReader fileReader = new BufferedReader(new FileReader(fileName));

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String content = null;

while ((content = fileReader.readLine()) != null) {

out.println(content);

out.flush();

System.out.println("File Sent...");

}

Else {

System.out.println("Requested File Not Found...");

out.println("File Not Found");

out.flush();

}

socket.close();

System.out.println("Connection Closed!");

}

catch (FileNotFoundException e) {


}


e.printStackTrace(); }}

public static void main(String[] args) { }

}

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Output:

C:\IPLAB>javac FileServer.java

C:\IPLAB>javac FileClient.java

C:\IPLAB>javac FileServent.java

C:\IPLAB>copy con Sample.txt

Welcome to FTP

C:\IPLAB>java FileServer

Server Waiting...

C:\IPLAB>java FileClient

Connected to Server...

Request Sent...

C:\IPLAB>java FileServer

Server Waiting...

Request Received From /127.0.0.1@2160

Service Thread Started

Server Waiting...

File Sent...

Connection Closed!

C:\IPLAB>type Recdfile.txt

Welcome to FTP

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Invoking Servlets from HTML form

Ex. No.: Reg. No.

30707104112

Date: Name: M Vignesh

Employee Phone

PostParam.java

import java.io.*;

import java.util.*;

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import javax.servlet.*;

public class PostParam extends GenericServlet {

public void service(ServletRequest

request,ServletResponse response) throws ServletException, IOException {

PrintWriter pw = response.getWriter();

Enumeration e = request.getParameterNames();

while(e.hasMoreElements()) {

String pname = (String)e.nextElement();

pw.print(pname + " = ");

String pvalue = request.getParameter(pname);

pw.println(pvalue);

}

pw.close();

}

}

OUTPUT:

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INVOKING SERVLETS FROM APPLET

Ex.No: Name: M Vignesh

Date: Reg.No:30707104112

Ats.htmlRoll No.

AppletToServlet.java

import java.io.*;import java.awt.*;import java.applet.*;import java.awt.event.*;import java.net.*;

/* */

public class AppletToServlet extends Applet implements ActionListener{

TextField toSend;TextField toGet;Label l1;Label l2;Button send;Intermediate s;String value;

ObjectInputStream is;ObjectOutputStream os;

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public void init(){toSend=new TextField(10);add(toSend);

toGet=new TextField(10);add(toGet);l1=new Label("value sent");l2=new Label("value received");add(l1);add(l2);send=new Button("Click to send to servlet");send.addActionListener(this);add(send);validate();s=new Intermediate();}

public void actionPerformed(ActionEvent e){value=toSend.getText();sendToServlet();}public void sendToServlet(){try{URL url=new

URL("http://localhost:8080"+"/servlet/ServletToApplet");URLConnection con=url.openConnection();s.setFname(value);writeStuff(con,s);s=new Intermediate();Intermediate p=readStuff(con);if(p!=null){value=p.getFname();toGet.setText("value:"+value);validate();}

}catch(Exception e){System.out.println(e);}}public void writeStuff(URLConnection connection, Intermediate value){

Try{connection.setUseCaches(false);connection.setRequestProperty("CONTENT_TYPE, "application/octet-stream");

connection.setDoInput(true);connection.setDoOutput(true);

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os=new ObjectOutputStream(connection.getOutputStream());os.writeObject(value);os.flush();os.close();

}catch(Exception y){}}public Intermediate readStuff(URLConnection connection){Intermediate s=null;

Try{is=newObjectInputStream(connection.getInputStream());s=(Intermediate)is.readObject();is.close();

}catch(Exception e){}return s;}}

ServletToApplet.java

import java.util.*;import java.io.*;import javax.servlet.http.*;import javax.servlet.*;public class ServletToApplet extends HttpServlet{String valueGotFromApplet;public void init(ServletConfig config) throws ServletException{System.out.println("Servlet entered");super.init();}public void service(HttpServletRequest request, HttpServletResponse response)throws

ServletException, IOException{try{System.out.println("service entered");ObjectInputStream ois=new ObjectInputStream(request.getInputStream());Intermediate ss=(Intermediate)ois.readObject();valueGotFromApplet=ss.getFname();System.out.println(valueGotFromApplet);response.setContentType("application/octet- stream");ObjectOutputStream oos=newObjectOutputStream(response.getOutputStream());

oos.writeObject(ss);oos.flush();

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oos.close();}catch(Exception e){System.out.println(e);}}

public String getServletInfo(){return "...";}}

Intermediate.javaimport java.io.*;

public class Intermediate implements Serializable{String fname;public String getFname(){return fname;}public void setFname(String s){fname=s;}}

OUTPUT:

D:\servlet\WEB-INF\classes>javac Intermediate.java

D:\servlet\WEB-INF\classes>javac AppletToServlet.java

D:\servlet\WEB-INF\classes>javac ServlettoApplet.java

D:\servlet\WEB-INF>type web.xml

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PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application

2.3//EN"

"http://java.sun.com/dtd/web-app_2_3.dtd">

Welcome to Tomcat

Welcome to Tomcat

ServletToApplet

ServletToApplet

ServletToApplet

/ServletToApplet

D:\servlet>jar -cvf ServletToApplet.war .

added manifest

adding: ats.html(in = 97) (out= 76)(deflated 21%)

adding: WEB-INF/(in = 0) (out= 0)(stored 0%)

adding: WEB-INF/classes/(in = 0) (out= 0)(stored 0%)

adding: WEB-INF/classes/AppletToServlet.class(in = 3055) (out= 1627)(deflated 46%)

adding: WEB-INF/classes/AppletToServlet.java(in = 1952) (out= 776)(deflated 60%)

adding: WEB-INF/classes/Intermediate.class(in = 433) (out= 273)(deflated 36%)

adding: WEB-INF/classes/Intermediate.java(in = 188) (out= 126)(deflated 32%)

adding: WEB-INF/classes/ServletToApplet.class(in = 1660) (out= 859)(deflated 48% )

adding: WEB-INF/classes/ServletToApplet.java(in = 975) (out= 424)(deflated 56%)

adding: WEB-INF/web.xml(in = 698) (out= 315)(deflated 54%)

Step 1: Open Web Browser and type

Step 2: http://localhost:8080

Step 3: Select Tomcat Manager

Step 4: Deploy the war file and Run

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JDBC Connectivity

Ex. No.: Reg. No.30707104112

Date: Name: M Vignesh

import java.sql.*;

import java.io.*;


import javax.servlet.http.*;

public class studentdata1 extends HttpServlet {

public void doGet(HttpServletRequest req, HttpServletResponse res) throws

ServletException, IOException {

res.setContentType("text/html");

PrintWriter out = res.getWriter();

out.print("");

out.print("");

out.println("STUDENT DATA");

out.println(" Press the button to retrieve data form data ");

out.print("");

out.print(" ");

out.print("Display Records");

out.print("");

out.close();

}

public void doPost(HttpServletRequest req, HttpServletResponse res) throwsServletException, IOException {



out.print("");

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out.print("");

out.print("SID\t Name\tTotal\n");

// connecting to database

Connection con = null;

Statement stmt = null;

ResultSet rs = null;

try {

Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");

con = DriverManager.getConnection("jdbc:odbc:student");

stmt = con.createStatement();

rs = stmt.executeQuery("SELECT * FROM student");

// displaying records

while(rs.next()) {

out.print(rs.getObject(1).toString());

out.print("\t");


out.print("\t");


out.print("\n");

}

} catch (SQLException e) {

throw new

ServletException("Servlet Could not display records.", e);

} catch (ClassNotFoundException e) {

throw new

ServletException("JDBC Driver not found.", e);

} finally {

try {

if(rs != null) {

rs.close();

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rs = null;

}

if(stmt != null) {

stmt.close();

stmt = null;

}

if(con != null) {

con.close();

con = null;

}

} catch (SQLException e) {}

}

out.print("

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ONLINE EXAMINATION THREE TIER

ARCHITECTURE

Ex. No. 10.b Reg. No. 30707104112

DATE: 8.10.10 Name: M Vignesh

Ques.html

database test

online examination

Name:

1.Every host implements transport layer

true

false

2. Servlet is server side script

true

false

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Online.java

import java.io.*;

import java.sql.*;


import javax.servlet.http.*;

import java.util.*;

public class online extends HttpServlet

{

String message,Name,ans1,ans2;

int total=0;

Connection connect;

Statement stmt=null;

ResultSet re=null;

public void doPost(HttpServletRequest req,HttpServletResponse res)throws

ServletException,IOException

{

try {

String url="jdbc:odbc:student12";

Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");

connect=DriverManager.getConnection(url," "," ");

message="connection success";

}

catch(ClassNotFoundException cn){

cn.printStackTrace();

}

catch(Exception sq)

{sq.printStackTrace();

}

Name=req.getParameter("Name");

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ans1=req.getParameter("group1");

ans2=req.getParameter("group2");

if(ans1.equals("true"))

total+=2;

if(ans2.equals("false"))

total+=2;

try {

Statement stmt=connect.createStatement();

String query="INSERT INTO Table1 ("+"name,score"+") VALUES

('"+Name+"','"+total+"')";

int result=stmt.executeUpdate(query);

stmt.close();

}

catch(SQLException e){}



out.println("");

out.println("");

out.println("Updated

");

out.println("Content of the database");

out.println("");

try {

Statement stmt=connect.createStatement();

String query="SELECT * FROM Table1";

re=stmt.executeQuery(query);

out.println(""+"Name"+"");

out.println(""+"Marks"+"");

while(re.next()) {

out.print("");

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out.println(""+re.getString(1)+"");

out.println(""+re.getInt(2)+"");

out.print("");

}

out.print("");

}

catch(SQLException ex){}

finally {

try {

if(re!=null)

re.close();

if(stmt!=null)

stmt.close();

if(connect!=null)

connect.close();

}

catch(SQLException e){}

}

out.print("");

out.print("thanks ");

out.print("");

out.print("");

out.close(); } }

OUTPUT:

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Ip1 8-10 1

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