Home Jsp Simple-jsp-example Using Beans And Page Scope

Related Tutorials


 
 

Share on Google+Share on Google+

Using Beans And Page Scope

Advertisement
The scope in which the Bean exists and the variable named in id is available. The default value of scope is page.

Using Beans And Page Scope

        

The scope in which the Bean exists and the variable named in id is available. The  default value of scope is page. In this bean object is placed in the PageContext object for the duration of the current request  

  1. page: It is a default value of scope. In this bean object is placed in the PageContext object and the object can be accessed within the page only.

<jsp:useBean>: This standard tag builds a new bean. It builds a object of the Bean class.
The syntax is <jsp:useBean id = "beanInstance" class = "package.className"/>

<jsp:setProperty>: This tag is used to modify the bean property. It calls the setXXX() method of the bean class.
The syntax is <jsp:setProperty name = "beanInstance" property = "propertyName" value = "propertyValue"/>.

<jsp:getProperty>: This tag is used to read and display the value of a bean property.
The syntax is <jsp:getProperty name = "beanInstance" property = "propertyName" />

The code of the program is given below:

 

package Mybean;
public class UsingBeanScopePage{
  private static int counter = 0;
  public void setCounter(int counter) {
    this.counter = counter;
  }
  public int getCounter(){
    return counter;
  }
}

 

<html>
  <head>
    <title>Using Beans and Page Scope</title>
  </head>
  <body>
    <h1>Using Beans and Page Scope</h1>
    <jsp:useBean id="pageScopeBean" class="Mybean.UsingBeanScopePage" scope="page" />
    <% 
    pageScopeBean.setCounter(pageScopeBean.getCounter() + 1);
    %>
	Counter value is <%= pageScopeBean.getCounter() %>
  </body>
</html>

The output of the program is given below:

Download this example.

Advertisements

If you enjoyed this post then why not add us on Google+? Add us to your Circles



Liked it!  Share this Tutorial


Follow us on Twitter, or add us on Facebook or Google Plus to keep you updated with the recent trends of Java and other open source platforms.

Posted on: March 11, 2008

Related Tutorials

Discuss: Using Beans And Page Scope   View All Comments

Post your Comment


Your Name (*) :
Your Email :
Subject (*):
Your Comment (*):
  Reload Image
 
 
Comments:0
DMCA.com