Skip to main content

Posts

Showing posts with the label Session tracking

Session tracking using Http Cookies

 Session tracking using Http Cookies index.html ======== <!DOCTYPE html> <html> <head> <meta charset="ISO-8859-1"> <title>Insert title here</title> <style type="text/css"> div { width: 500px; margin: auto; margin-top: 100px; } </style> </head> <body> <div> <form action="firsturl" method="post"> Name: <br> <input type="text" name="name"> <br> Choose any one: <br> <select name="dish"> <option value="sweet">Sweet</option> <option value="spicy">Spicy</option> </select> <br> <input type="submit" value="submit"> </form> </div> </body> </html> FirstServlet.java ------------------- package com.servlet; import java.io.IOException; import java.io.PrintWriter; import javax.servlet.Servl
Post a Comment
Read more

Session tracking using url rewriting in servlet

 Session tracking using url rewriting in servlet web.xml ======== <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd" id="WebApp_ID" version="4.0">   <display-name>URLRewriting</display-name>   <welcome-file-list>     <welcome-file>index.html</welcome-file>   </welcome-file-list> </web-app> index.html ======= <!DOCTYPE html> <html> <head> <meta charset="ISO-8859-1"> <title>Insert title here</title> <style type="text/css"> div { width: 500px; margin: auto; margin-top: 100px; } </style> </head> <body> <div> <form action="firsturl" method="post">
Post a Comment
Read more

Session tracking using Hidden form fields in servlet

Session tracking using Hidden form fields in servlet  Http Stateless behaviour ======================== The protocol http creates seperate connection with the web server for browser for every request due to this one connection data can not be used in another connection i.e one request data can not be used in another request processing. in order to get stateful behaviour in web application though protocol http is stateless we need to use following session tracking techniques a)Hidden form fields advantages ========== 1)Basic html knowledge 2)can be used with diff servers 2)Disadvantages a)we can see the data (no secrecy) b)hidden box values travel across the multiple requests i.e they increase network traffic  b/w browser and server c)Hidden boxes can only hold the text data/String values.. i.e they can not hold the java objects d)if multiple forms are there then adding hidden box values is quite heavy job Directory ======= web.xml ======== <?xml version="1.0" encoding=&quo
Post a Comment
Read more