Servlets n Jsp

7/29/2019 Servlets n Jsp

1/35

Servlets Without DatabaseConnectivityCODE:HelloWorld.html

hello world


2/35

out.println("");out.println("Servlet helloworld at " +request.getContextPath () + "");out.println("");out.println("");

out.close();}

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

protected void doPost(HttpServletRequest request,

HttpServletResponse response)throws ServletException, IOException {processRequest(request, response);}

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


3/35

OUTPUT :

HelloWorld.html


4/35

HelloWorld.java


5/35

Servlets With Database Connectivity

CODE:RegistrationForm.html

STUDENT REGISTRATION FORM
STUDENT REGISTRATION FORM

Name:

StudentID:

Password:


6/35

RegistrationForm.java

import java.sql.Statement;import java.io.*;import java.sql.Connection;

import java.sql.DriverManager;import java.sql.ResultSet;import javax.servlet.*;import javax.servlet.http.*;

public class RegistrationForm extends HttpServlet {String name;String studentID;String password;static boolean first=true;

PrintWriter pw;protected void processRequest(HttpServletRequest request,HttpServletResponse response)throws ServletException, IOException {if(first) {response.setContentType("text/html;charset=UTF-8");pw=response.getWriter();name=new String(request.getParameter("Name"));studentID = new String(request.getParameter("StudentID"));password = new String(request.getParameter("Password"));

}try{Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");Connectionconnection=DriverManager.getConnection("jdbc:odbc:phonedir","hr","hr");Statement statement = connection.createStatement();ResultSet n=statement.executeQuery("select studentID fromStudent where studentID='"+studentID+"'");int r=0;

while(n.next())r++;if(r>0) {String s="";s=s+"Error In Submitting";s=s+"";s=s+"window.history.back();";


7/35

s=s+"alert(\"StudentID ALREADY EXISTS\");";s=s+"";s=s+"";s=s+"ERROR";pw.println(s);

} else {statement.executeUpdate("insert into Studentvalues('"+name+"','"+studentID+"','"+password+"')");pw.println(" STUDENT DETAILS ADDED");}} catch(Exception ex) {System.out.println(ex); }pw.close();}


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

}


OUTPUT:


8/35

RegistrationForm.html

RegistrationForm.java


9/35

DataBase : student


10/35

JSP With DataBase Connectivity

CODE:


11/35

Telephone.html

TELEPHONE DIRECTORYTELEPHONE DIRECTORY
ENTER THE NAME:

Phone.jsp

TELEPHONE DIRECTORYTELEPHONE DIRECTORY


12/35

OUTPUT:


13/35

Telephone.html

Phone.jsp


14/35

DataBase : phonedir


15/35

JSP With DataBaseConnectivity

CODE:


16/35

emp.html

Salary Details Inquiry Salary Details Inquiry
Employee id:

Salary.jsp

Salary details WELCOME


17/35


18/35

double da=.87*bp;double hra=.08*bp;int oa=0;int va=500;int hfa=2500;

double ts=da+hra+oa+va+hfa+bp;out.println("The Total Salary is :"+ts);}if(m==3){double da=.87*bp;double hra=.08*bp;int oa=0;int va=500;int hfa=2500;double ts=da+hra+oa+va+hfa+bp;

out.println("The Total Salary is :"+ts);}%>

OUTPUT:


19/35

emp.html

Salary.jsp


20/35

DataBase : emp


21/35

Servlets without DataBaseConnectivityCODE:


22/35

DisplayMessage.html

Display MessageEnter message:Enter color:

DisplayMessage.java

import java.sql.Statement;import java.io.*;import javax.servlet.*;import javax.servlet.http.*;public class DisplayMessage extends HttpServlet {String message;String color1;PrintWriter pw;


23/35

protected void processRequest(HttpServletRequest request,HttpServletResponse response)throws ServletException,IOException {response.setContentType("text/html;charset=UTF-8");pw=response.getWriter();

message=new String(request.getParameter("msg"));color1 = new String(request.getParameter("color"));String s="";s=s+"DisplayMessage";s=s+"";s=s+message;s=s+"";pw.println(s);pw.close();}


protected void doPost(HttpServletRequest request,HttpServletResponse response)throws ServletException, IOException {

processRequest(request, response);}


OUTPUT:


24/35

DisplayMessage.html

DisplayMessage.java


25/35

Asp without DataBase Connectivity

CODE:

backgroundform.html


26/35

Chose background color

Which color do you prefer to use as your background?Defined colorWhiteRedGreen

Blue
Custom color

backgroundform.asp:


27/35

texttoshow="Blue"End selectcase "custom"colorofbackground=Request.Form("mycolor")texttoshow="Custon color"

End select%>

Chose background color

OUTPUT:

backgroundform.html


28/35

backgroundform.asp


29/35

backgroundform.html


30/35

backgroundform.asp


31/35

Asp without DataBase Connectivity

CODE:


32/35

login.html

Sample Form

This is a Sample Form
Name:Nick Name:Password:
test.asp

1 then %>Name =
Nick Name =
Name =
Password =

1 then %>Name =
Nick Name =
Name =


33/35

Password =

OUTPUT:

login.html


34/35


35/35

Servlets n Jsp

Documents

Transcript of Servlets n Jsp