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Practical 1

Simple Server-Side programming using Servlet1.1. Write a servlet that accepts single-valued (Name, Mobile No.) as well as multi-valued (Languages known, Hobbies) parameters like check boxes and multiple selection list boxes from an HTML document and outputs them to the screen.

index.html

<html>

<head>

<title>TODO supply a title</title>

<meta charset="UTF-8">

<meta name="viewport" content="width=device-width, initial-scale=1.0">

</head>

<body>

<form method="post" action="abc">

<table border=1>

<tr>

<td>Name</td>

<td><input type="text" name="Name"></td>

</tr>

<tr>

<td>Tel.No</td>

<td><input type="text" name="Telno"></td>

</tr>

<tr>

<td>Language</td>

<td><input type=checkbox name=language value=eng>Eng</td>

<td><input type=checkbox name=language value=mar>Marathi</td>

<td><input type=checkbox name=language value=hin>Hindi</td>

</tr>

<tr>

<td>Software</td>

<td>

<select multiple size=5 name="software">

<option>Excel

<option>VB

<option>Java

<option>C++

</select></td></tr>

<tr>

<td><input type=submit value=submit></td>

<td><input type=reset></td>

</tr>

</table>

</form>

</body>

</html>

abc.java

import java.io.IOException;

import java.io.PrintWriter;

import java.util.Enumeration;

import javax.servlet.ServletException;

import javax.servlet.annotation.WebServlet;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

@WebServlet(urlPatterns = {"/abc"})

public class abc extends HttpServlet

{

protected void processRequest(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException

{

response.setContentType("text/html;charset=UTF-8");

try (PrintWriter out = response.getWriter())

{

out.println("<!DOCTYPE html>");

out.println("<html>");

out.println("<head>");

out.println("<title>Servlet abc</title>");

out.println("</head>");

out.println("<body>");

out.println("<h1>Servlet abc at " + request.getContextPath() + "</h1>");

out.println("</body>");

out.println("</html>");

}

}

@Override

protected void doGet(HttpServletRequest request, HttpServletResponse response)


{

processRequest(request, response);

}

@Override

protected void doPost(HttpServletRequest request, HttpServletResponse response)


{

try

{

response.setContentType("text/html");

Enumeration e=request.getParameterNames();

PrintWriter out = response.getWriter();

while(e.hasMoreElements())

{

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

out.println(name);

String[] value=request.getParameterValues(name);

for(int i=0;i<value.length;i++)

{

out.print(value[i]+"<tr>");

}

}

}

catch(Exception e)

{

System.out.println("ERROR ="+e.getMessage());

}

}

}

}

@Override

public String getServletInfo()

{

return "Short description";

}

}

Output :

1.2. Write a Servlet program that accepts an integer n from html form calculates and displays the factorial of n. If the number is negative, it should redirect to a different error page having link to the html form.

index.html

<html>

<head>

<title>Factorial</title>



</head>

<body>

<form action="Factorial" method="get">

Enter Number :<input type="text" name="t1">

<br> <br>

<input type="submit" value="submit">

</form>

</body>

</html>

Factorial.java








@WebServlet(urlPatterns = {"/Factorial"})

public class Factorial extends HttpServlet

{



{


try (PrintWriter out = response.getWriter()) {




out.println("<title>Servlet Factorial</title>");



out.println("<h1>Servlet Factorial at " + request.getContextPath() + "</h1>");



}

}

@Override

protected void doGet(HttpServletRequest request, HttpServletResponse response)


{


try (PrintWriter pw= response.getWriter())

{

int x=Integer.parseInt(request.getParameter("t1"));

int f=1;

for(int i=1;i<=x;i++)

{

f=f*i;

}

pw.println(f);

}

}

@Override

protected void doPost(HttpServletRequest request, HttpServletResponse response)


{

processRequest(request, response);

}

@Override

public String getServletInfo() {

return "Short description";

}

}

Output :

Practical 2

Advance Server-side programming using Servlets.2.1. Write two servlets in which one servlet will display a form in which data entry can be done for the field’s dept-no, dept-name and location. In the same form place a button called as submit and on click of that button this record should be posted to the table called as DEPT in the database. This inserting of record should be done in another servlet. The second servlet should also display all the previous recordentered in the database.

NewServlet.javaimport java.io.IOException;import java.io.PrintWriter;import javax.servlet.ServletException;import javax.servlet.annotation.WebServlet;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;

@WebServlet(urlPatterns = {"/NewServlet1"})public class NewServlet1 extends HttpServlet {

protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html;charset=UTF-8"); try (PrintWriter out = response.getWriter()) { out.println("<!DOCTYPE html>"); out.println("<html>"); out.println("<head>"); out.println("<title>Servlet NewServlet1</title>"); out.println("</head>"); out.println("<body>"); out.println("<Form name=frm method="+"POST"+" action=NewServlet>"); out.println("DepartmentNo: <input type=text name=txtNo><br>"); out.println("DepartmentName: <input type=text name=txtName><br>"); out.println("Location: <input type=text name=txtLoc><br>"); out.println("<input type=submit name=Submit>"); out.println("<input type=reset name=Reset>"); out.println("</form>");

out.println("</body>"); out.println("</html>"); } }

@Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); }

@Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); }

@Override public String getServletInfo() { return "Short description"; }}

NewServlet1.javaimport java.io.IOException;import java.io.PrintWriter;import java.sql.Connection;import java.sql.DriverManager;import java.sql.PreparedStatement;import java.sql.ResultSet;import java.sql.ResultSetMetaData;import java.sql.SQLException;import javax.servlet.ServletException;import javax.servlet.annotation.WebServlet;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;

@WebServlet(urlPatterns = {"/NewServlet"})public class NewServlet extends HttpServlet{ protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html;charset=UTF-8"); try (PrintWriter out = response.getWriter()) { out.println("<!DOCTYPE html>"); out.println("<html>"); out.println("<head>"); out.println("<title>Servlet NewServlet</title>"); out.println("</head>"); out.println("<body>"); out.println("<h1>Servlet NewServlet at " + request.getContextPath() + "</h1>"); out.println("</body>"); out.println("</html>"); } }

@Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response);}

@Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{ String a,b,c,d,e,f; int i; Connection con = null; try

{ response.setContentType("text/html"); Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); con=DriverManager.getConnection("jdbc:odbc:First"); String Query="insert into dept Values(?,?,?)"; java.sql.Statement st=con.createStatement(); PreparedStatement ps; ps=con.prepareStatement(Query); a=(String)request.getParameter("txtNo"); b=(String)request.getParameter("txtName"); c=(String)request.getParameter("txtLoc"); ps.setString(1,a); ps.setString(2,b); ps.setString(3,c); ps.executeUpdate(); PrintWriter out=response.getWriter(); ResultSet rs=st.executeQuery("select * from dept"); ResultSetMetaData md=rs.getMetaData(); int num=md.getColumnCount(); out.println("<html><body><table border=1><tr>"); for(i=1;i<=num;i++) { out.print("<th>"+md.getColumnName(i)+"</th>"); } out.println("</tr>"); while(rs.next()) { d=rs.getString(1); e=rs.getString(2); f=rs.getString(3); out.println("<tr><td>"); out.println(d); out.println("</td><td>"); out.println(e); out.println("</td><td>"); out.println(f); out.println("</td></tr>"); } out.println("</table>"); con.commit(); out.println("<a href=Newservlet1.java>BACK</a>"); out.println("</body></html>"); } catch ( ClassNotFoundException | SQLException | IOException ae) { System.out.println(ae.getMessage());

}}

Output :

2.2. Write a Servlet that accepts a username from a HTML form and stores it as a session variable. Write another Servlet that returns the value of this session

variable and displays it.index.html

<html>

<head>




</head>

<body>

<form action="Servlet1">

Name :

<input type="text" name="Username"/><br>

<input type="submit" value="go"/>

</form>

</body>

</html>

NewServlet.java








import javax.servlet.http.HttpSession;

@WebServlet(urlPatterns = {"/NewServlet"})

public class NewServlet extends HttpServlet

{


throws ServletException, IOException {


try (PrintWriter out = response.getWriter()) {

String n= request.getParameter("Username");

out.print("Welcome" +n);

HttpSession session=request.getSession();

session.setAttribute("Uname",n);

out.print("<a href = 'NewServlet1'>Visit</a>");

}

}

NewServlet1.java








import javax.servlet.http.HttpSession;

@WebServlet(urlPatterns = {"/NewServlet1"})

public class NewServlet1 extends HttpServlet

{





{

HttpSession session=request.getSession(false);

String n=(String)session.getAttribute("Uname");

out.print("Hello " +n);

}

}

Output :

Practical 3

Simple Server-side programming using JSP3.1. Write JSP files that accept a number from the HTML form and

Displays whether it is even or odd. It’s Factorial Multiplication table.

Index.html

<html>

<head>




</head>

<body>

<form action="NewJSP.jsp">

Enter Number :

<br><br>

<input type="text" name="n">

<input type="submit" value="Submit">

</form>

</body>

</html>

NewJSP.jsp

<%@page contentType="text/html" pageEncoding="UTF-8"%>

<!DOCTYPE html>

<html>

<head>

out.println("This number is odd");

}

%>

<br><br>

<%

for(int k=1;k<=10;k++)

{

out.println(n*k);

}

%>

</h4>

</body>

</html>

Output :

3.2. Write a JSP page to accept two numbers (m,n) from the user, on click of the submit button display on a new JSP page all prime numbers between m and n. If the number m is not less than n (m<n), it should redirect to a different error page having link to the JSP form.

Index.html

<html>

<head>




</head>

<body>

<form action="PrimeNumber.jsp">

Enter the lower bound :

<input type="text" name="n">

<br><br>

Enter the upper bound :

<input type="text" name="n1">

<br><br>

<input type="submit" value="submit">

</form>

</body>

</html>

PrimeNumber.jsp


<!DOCTYPE html>

<html>

<head>



</head>

<body>

<%

int p,d=2;

int Primeflag;

String r1=request.getParameter("n");

int n=Integer.parseInt(r1);

String r2=request.getParameter("n1");

int n1=Integer.parseInt(r2);

for(p=n;p<=n1;p++)

{

Primeflag=1;

for(d=2;d<=p-1;d++)

{

if(p%d==0)

{

Primeflag=0;

}

}

if(Primeflag==1)

out.print("\t" +p);

}

%>

</body>

</html>

Output :

Practical 4

Advance Server-side programming using JSP.4.1. Write a JSP page, which displays three text boxes for Department Number, Department Name and Location. On click of the submit button call another JSP page which will enter the values in the database with the help of PreparedStatement class. Also use jspInit() and jspDestroy() to open and close the connection. (Register.jsp).

DeptForm.jsp<%@page contentType="text/html" pageEncoding="UTF-8"%><!DOCTYPE html><html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>JSP Page</title> </head> <body> <form method=GET action="Register1.jsp"><table><tr><td>DepartmentNo: </td><td> <input type=text name=txtNo></td></tr><tr><td>DepartmentName: </td><td><input type=text name=txtName></td></tr><tr><td>Location:</td><td> <input type=text name=txtLoc></td></tr></table><input type=submit value=Submit><input type=reset name=Reset></Form>

</body></html>

Resigter1.jsp<%-- Document : Register1 Created on : Feb 20, 2017, 10:18:03 PM Author : USER--%>

<%@page contentType="text/html" pageEncoding="UTF-8"%><!DOCTYPE html><%@ page import="java.sql.*" %><%! String a,b,c,d,e,f,Query; %>

<%! Connection con;Statement st;PreparedStatement ps; %><%! int i,num; %><%!public void jspInit(){try{Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");con=DriverManager.getConnection("jdbc:odbc:connect");st=con.createStatement();Query="insert into Dept values(?,?,?)";ps=con.prepareStatement(Query);}catch(Exception e){System.out.println("Error: "+e.getMessage());}}%><%a=(String)request.getParameter("txtNo");b=(String)request.getParameter("txtName");c=(String)request.getParameter("txtLoc");ps.setInt(1,Integer.parseInt(a));ps.setString(2,b);ps.setString(3,c);ps.executeUpdate();con.commit();ResultSet rs=st.executeQuery("select * from Dept");%><html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>JSP Page</title> </head> <body> <table border=1><tr><th>Dept No </th><th>Dept Name</th><th>Location</th></tr><%while(rs.next()){%><tr><% for(int j=0;j<=2;j++)

{Object obj=rs.getObject(j+1);%><td><%=obj.toString()%></td><%}}%></tr></table><%!public void jspDestroy(){ try{ps.close();

st.close();}catch(Exception e){System.out.println("Error:"+e.getMessage());}}%></body></html>

Output :

4.2. Create a java bean that gives information about the current time. The bean has getter properties for time, hour, minute, second. Write a JSP page that uses the bean and display all the information.

CalenderB.java

package myclass;

import java.util.Calendar;

import java.util.Date;

public class CalenderB

{

private final Calendar calendar;

public CalenderB()

{

calendar = Calendar.getInstance();

}

public Date Time;

public Date getTime()

{

return calendar.getTime();

}

public int Hour;

public int getHour()

{

return calendar.get(Calendar.HOUR_OF_DAY);

}

public int Minute;

public int getMinute()

{

return calendar.get(Calendar.MINUTE);

}

public int Second;

public int getSecond()

{

return calendar.get(Calendar.SECOND);

}

}

BeanTime.jsp


<!DOCTYPE html>

<html>

<head>



</head>

<body>

<jsp:useBean class="myclass.CalenderB" id="cal"/>

<pre>

Time : <jsp:getProperty name="cal" property="time"/> <br>

Hour : <jsp:getProperty name="cal" property="hour"/> <br>

Minute : <jsp:getProperty name="cal" property="minute"/> <br>

Second : <jsp:getProperty name="cal" property="second"/> <br>

</pre>

</body>

</html>

Output :

Practical 5

Developing Simple Enterprise Java Beans5.1. Develop Converter Stateless Session Bean. Write enterprise application for converting Japanese Yen currency to Eurodollars currency. Converter consists of an enterprise bean, which performs the calculations, and a web client(JSP/Servlet) or Application Client.

Jsp file :


<!DOCTYPE html>

<html>

<head>



</head>

<body>

<form method = "get" action="ConverterServlet">

<table border="2">

<tr>

<td> Enter Amount </td>

<td> <input type="text" name="txtnum"> </td>

</tr>

<tr>

<td> <input type="Submit" name="Submit"> </td>

</tr>

</table>

</form>

</body>

</html>

ConverterBeanoneRemote.java

package Server;

import java.math.BigDecimal;

import javax.ejb.Remote;

@Remote

public interface ConverterBeanoneRemote

{

BigDecimal dollarToYen(BigDecimal dollars);

BigDecimal yenToEuro(BigDecimal yen);

}

ConverterBeanone.java

package Server;


import javax.ejb.Stateless;

@Stateless

public class ConverterBeanone implements ConverterBeanoneRemote

{

private BigDecimal euroRate=new BigDecimal("0.0070");

private BigDecimal yenRate=new BigDecimal("112.58");

@Override

public BigDecimal dollarToYen(BigDecimal dollars)

{

BigDecimal result=dollars.multiply(yenRate);

return result.setScale(2,BigDecimal.ROUND_UP) ;

}

@Override

public BigDecimal yenToEuro(BigDecimal yen)

{

BigDecimal result=yen.multiply(euroRate);

return result.setScale(2,BigDecimal.ROUND_UP);

}

}

ConverterServlet.java

package server;

import Server.ConverterBeanoneRemote;




import javax.ejb.EJB;






@WebServlet(name = "ConverterServlet", urlPatterns = {"/ConverterServlet"})

public class ConverterServlet extends HttpServlet

{

@EJB(name = "Conv")

private ConverterBeanoneRemote conv;



{



{




out.println("<title>Servlet ConverterServlet</title>");



String str=request.getParameter("txtnum");

int txtnum=Integer.parseInt(str);

BigDecimal num=new BigDecimal(txtnum);

out.println("<h2> Dollar To Yen"+conv.dollarToYen(num)+ "</h2>");

out.println("<h2> yen to euro" +conv.yenToEuro(num)+" </h2>");



}

}

Output :

5.2. . Develop Calculator Stateless Session Bean. Write enterprise application for adding, subtracting, multiplying and dividing two numbers. Calculator consists of an enterprise bean, which performs the calculations, and a web client(JSP/Servlet) or Application Client.

CalculatorBeanOne.java

@Stateless

public class CalculatorBeaneOne implements CalculatorBeaneOneRemote

{

@Override

public int add(int x, int y)

{

return x+y;

}

public int sub(int x, int y)

{

return x-y;

}

public int mul(int x, int y)

{

return x*y;

}

public int div(int x, int y)

{

return x/y;

}

}

CalculatorBeanOneRemote.java

package server1;

import javax.ejb.Remote;

@Remote

public interface CalculatorBeaneOneRemote

{

int add(int y, int x);

int sub(int x, int y);

int mul(int x, int y);

int div(int x, int y);

}

Calc.jsp


<!DOCTYPE html>

<html>

<head>



</head>

<body>

<form action="fetch" method="get">

<h2>Enter First Number : </h2>

<input type="text" name="t1"><br>

<h2>Enter Second Number : </h2>

<input type="text" name="t2"><br>

<h3>Select Operation : </h3>

<input type="radio" name="operation" value="add">Addition<br>

<input type="radio" name="operation" value="sub">Subtraction<br>

<input type="radio" name="operation" value="mul">Multiplication<br>

<input type="radio" name="operation" value="div">Division<br>

<input type="submit" value="Submit">

</form>

</body>

</html>

Fetch.java

package server1;



import javax.ejb.EJB;






@WebServlet(name = "fetch", urlPatterns = {"/fetch"})

public class fetch extends HttpServlet

{

@EJB(name = "cbo")

private CalculatorBeaneOneRemote cbo;





{




out.println("<title>Servlet fetch</title>");



int a=Integer.parseInt(request.getParameter("t1"));

int b=Integer.parseInt(request.getParameter("t2"));

String o=request.getParameter("operation");

if(o.equals("add"))

{

out.println("<h1>Addition is : " +cbo.add(a,b)+"</h1>");

}

if(o.equals("sub"))

{

out.println("<h1>Subtraction is : " +cbo.sub(a,b)+"</h1>");

}

if(o.equals("mul"))

{

out.println("<h1>Multiplication is : " +cbo.mul(a,b)+"</h1>");

}

if(o.equals("div"))

{

out.println("<h1>Division is : " +cbo.div(a,b)+"</h1>");

}



}

}

Output :

Practical 6

6.Developing Simple Web Services in Java6.1. Create a web service that gives – (i) NSE Index, (ii) BSE Index, (iii) Gold Rate. The values are stored in database. Also create a web client for a share trading firm that displays these values on its home page.

NseBseGoldWSIndexWebservice.javapackage server;

import javax.jws.WebService;import javax.jws.WebMethod;import javax.jws.WebParam;import java.io.*;import java.sql.*;

@WebService(serviceName = "IndexWebService")public class IndexWebService{ Connection con; Statement st; String DriverName="sun.jdbc.odbc.JdbcOdbcDriver"; String dbURL="jdbc:odbc:MYDSN";

ResultSetrs;floatnse, bse, gold;

@WebMethod(operationName = "getNSE")public Float getNSE() {try {Class.forName(DriverName);con=DriverManager.getConnection(dbURL);st=con.createStatement();rs=st.executeQuery("select * from Index");rs.next();nse=Float.parseFloat(rs.getString(1));

}catch(ClassNotFoundException | SQLException e) {System.out.println(e.getMessage()); }

returnnse; }

@WebMethod(operationName = "getBSE")public Float getBSE() {try {Class.forName(DriverName);con=DriverManager.getConnection(dbURL);st=con.createStatement();rs=st.executeQuery("select * from Index");rs.next();bse=Float.parseFloat(rs.getString(2));


returnbse; }

@WebMethod(operationName = "getGold")public Float getGold() {try {Class.forName(DriverName);con=DriverManager.getConnection(dbURL);st=con.createStatement();rs=st.executeQuery("select * from Index");rs.next();gold=Float.parseFloat(rs.getString(3)); }

catch(ClassNotFoundException | SQLException e) {System.out.println(e.getMessage()); }return gold; }}

Homepage.jsp<%@page contentType="text/html" pageEncoding="UTF-8"%><!DOCTYPE html><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>JSP Page</title></head><body><%-- start web service invocation --%><hr/><%try {

server.IndexWebService_Service service = new server.IndexWebService_Service();

server.IndexWebService port = service.getIndexWebServicePort();java.lang.Float result = port.getBSE();out.println("Result = "+result);

} catch (Exception ex) { } %><%-- start web service invocation --%><hr/><%try {

server.IndexWebService_Service service = new server.IndexWebService_Service();

server.IndexWebService port = service.getIndexWebServicePort();java.lang.Float result = port.getGold();out.println("Result = "+result);

} catch (Exception ex) {// TODO handle custom exceptions here

} %><%-- end web service invocation --%><hr/><%-- start web service invocation --%><hr/><%

try {server.IndexWebService_Service service = new

server.IndexWebService_Service();server.IndexWebService port = service.getIndexWebServicePort();// TODO process result herejava.lang.Float result = port.getNSE();out.println("Result = "+result);

} catch (Exception ex) {// TODO handle custom exceptions here

} %><%-- end web service invocation --%><hr/><%-- end web service invocation --%><hr/><h1>Hello World!</h1></body></html>

Homepageservlet.javapackage server;

importjava.io.IOException;importjava.io.PrintWriter;importjavax.servlet.ServletException;importjavax.servlet.http.HttpServlet;importjavax.servlet.http.HttpServletRequest;importjavax.servlet.http.HttpServletResponse;importjavax.xml.ws.WebServiceRef;

public class HomepageServlet extends HttpServlet {@WebServiceRef(wsdlLocation = "WEB-INF/wsdl/localhost_8080/NseBseGold/IndexWebService.wsdl")privateIndexWebService_Service service;

protected void processRequest(HttpServletRequest request, HttpServletResponse response)throwsServletException, IOException {response.setContentType("text/html;charset=UTF-8");try (PrintWriter out = response.getWriter()) {out.println("<!DOCTYPE html>");out.println("<html>");out.println("<head>");

out.println("<title>Servlet HomepageServlet</title>"); out.println("</head>");out.println("<body>");out.println("<br> value of NSE is "+getNSE());out.println("<br> value of BSE is "+getBSE());out.println("<br> value of Gold is "+getGold());out.println("</body>");out.println("</html>"); } }

private Float getBSE() {server.IndexWebService port = service.getIndexWebServicePort();returnport.getBSE(); }

private Float getGold() {server.IndexWebService port = service.getIndexWebServicePort();returnport.getGold(); }

private Float getNSE() {server.IndexWebService port = service.getIndexWebServicePort();returnport.getNSE(); }}

Practical 7

7.Developing Advance Web Services in Java7.1. Create a web service for UGC that contains a method which accepts college name as parameter and returns the NAAC rating. The college names and their ratings are stored in database. Design a web client to test the above web service

UGC1.UgcWebservice.javapackage server;

import javax.jws.WebService;import javax.jws.WebMethod;import javax.jws.WebParam;import java.io.*;import java.sql.*;

@WebService(serviceName = "UgcWebService")public class UgcWebService{ Connection con; Statement st; String DriverName="sun.jdbc.odbc.JdbcOdbcDriver"; String dbURL="jdbc:odbc:MYDSN";

ResultSetrs;floatnaac; String collegen ;

@WebMethod(operationName = "getCollege")public Float getCollege(@WebParam(name = "college") String college) {collegen=college;try {

Class.forName(DriverName);con=DriverManager.getConnection(dbURL);st=con.createStatement();

rs=st.executeQuery("select * from UGC where CollegeName="+ "\'" + collegen + "\'");System.out.println(collegen);rs.next();naac=Float.parseFloat(rs.getString(2));


returnnaac; }}

2.UGC.html<html><head><title>NAAC Rating</title><meta charset="UTF-8"><meta name="viewport" content="width=device-width"></head><body><form method="get" action="http://localhost:8080/UGC/UGCServlet"><b>Know NAAC Rating For your College</b><br> Enter Your college name:<input type="text" name="txtn"><br><input type="submit" value="submit"></form></body></html>

3.UGCServlet.javapackage server;

importjava.io.IOException;importjava.io.PrintWriter;importjavax.servlet.ServletException;importjavax.servlet.http.HttpServlet;importjavax.servlet.http.HttpServletRequest;importjavax.servlet.http.HttpServletResponse;importjavax.xml.ws.WebServiceRef;import server1.UgcWebService_Service;

public class UGCServlet extends HttpServlet{@WebServiceRef(wsdlLocation = "WEB-INF/wsdl/localhost_8080/UGC/UgcWebService.wsdl")privateUgcWebService_Service service;

protected void processRequest(HttpServletRequest request, HttpServletResponse response)throwsServletException, IOException {response.setContentType("text/html;charset=UTF-8");try (PrintWriter out = response.getWriter()) { String collegen= request.getParameter("txtn"); out.println("<!DOCTYPE html>");out.println("<html>");out.println("<head>");out.println("<title>Servlet UGCServlet</title>"); out.println("</head>");out.println("<body>");out.println("<br>Your College NAAC Grade is "+getCollege(collegen));out.println("</body>");out.println("</html>"); } }

private Float getCollege(java.lang.String college) {are not thread safe.synchronization is required.server1.UgcWebService port = service.getUgcWebServicePort();returnport.getCollege(college); }

}

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