Cookies using JSP or Java Bean

By: Rajan Emailed: 1728 times Printed: 2331 times    

Latest comments
By: rohit kumar - how this program is work
By: Kirti - Hi..thx for the hadoop in
By: Spijker - I have altered the code a
By: ali mohammed - why we use the java in ne
By: ali mohammed - why we use the java in ne
By: mizhelle - when I exported the data
By: raul - no output as well, i'm ge
By: Rajesh - thanx very much...
By: Suindu De - Suppose we are executing

Cookies are a way of storing user specific data in their own computers. For example if you want to identify your site's visitor and greet him by his name the next time he visits your computer, you can use a cookie. So the first time the user visits you can provide a field to enter his name and then store this information as a cookie in his computer. The next time he visits your site, you can check whether a cookie by that name is stored in his computer and if it is stored then you can retrieve this name and greet him by saying 'Welcome back xxxxxxx'.

This Sample Java Program shows how to check whether a cookie by the specified name exists in the PC and if exists then print the value set for that Cookie. This code can be embedded in your JSP or Java Bean or Servlets.


try{
URL url= new URL(args[0]); 
URLConnection urlConnection = url.openConnection(); 
for(int i=0;;i++) 
{ 
String header=urlConnection.getHeaderField(i); 
if(header==null) 
break; 
if("set-cookie".equalsIgnoreCase(urlConnection.getHeaderFieldKey(i))) 
	System.out.println(header);
}
}catch(MalformedURLException mue){}
catch(IOException ioe){} 


JSP Home | All JSP Tutorials | Latest JSP Tutorials

Sponsored Links

If this tutorial doesn't answer your question, or you have a specific question, just ask an expert here. Post your question to get a direct answer.



Bookmark and Share

Comments(0)


Be the first one to add a comment

Your name (required):


Your email(required, will not be shown to the public):


Your sites URL (optional):


Your comments:



More Tutorials by Rajan
WebWork 2 is now Apache Struts 2
Using JDBC to connect to MySQL from Java Program
Execute system commands in a Java Program
Cookies using JSP or Java Bean
Sample Java Script that displays a movable clock
Java Chat Client Sample Applet

More Tutorials in JSP
LifecycleException: service.getName(): "Catalina"; Protocol handler start failed: `java.net.BindException: Permission denied <null>:80
JSP Alert Example
JSP CheckBox Example
Uploading an Image to a Database using JSP
Uploading a file to a server using JSP
A JSP page that gets properties from a bean
The page Directive in JSP
The taglib, tag, include, attribute and the variable Directive in JSP
Declarations in JSP
Scriptlets and Expressions in JSP
Tag Libraries in JSP
The Request Object in JSP
The Response Object in JSP
The Out Object in JSP
The Session Object in JSP

More Latest News
Most Viewed Articles (in JSP )
JSP Example to connect to MS SQL database and retrieve records
LifecycleException: service.getName(): "Catalina"; Protocol handler start failed: `java.net.BindException: Permission denied <null>:80
Automatically Refreshing a JSP
JSP CheckBox Example
JSP Program for display Date
JSP Alert Example
What are the different scopes in JSP?
NotifyUtil::java.net.ConnectException: Connection refused: connect
Comparison operators in JSP
Sending Email using JSP
The Response Object in JSP
Example Using Initialization Parameters
Simple HTML-Building Utilities
Password Object
Math Object
Most Emailed Articles (in JSP)
Scriptlets
Combining Scriptlets with HTML
Form processing in JSP
Protecting your website with a login page
NetworkClient
The Servlet Life Cycle
Closing Windows
WebClient: Talking to Web Servers Interactively
Drawbacks of the JSP Model 1 Architecture
Select Object
Working with Status Bar Messages
NotifyUtil::java.net.ConnectException: Connection refused: connect
What are the different scopes in JSP?
Calling JSP from a batch file
Embedding a QuickTime movie in a JSP