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how to write a bean class?

nagalatha mitta
Greenhorn

Joined: Jun 11, 2007
Posts: 26
hi friends
HFSJ book says that if "type" is used without "class" ,the bean must already exist.My doubt is how to write a bean class code,so that bean is already stored as an attribute at the scope and with the "id" we have put in <jsp:useBean> tag.
anybody let me know please

thanks in advance
Vassili Vladimir
Ranch Hand

Joined: Mar 08, 2007
Posts: 1585
Hi,

Write a standard JavaBean, put it in /WEB-INF/classes, and then in your JSP page, when using the <jsp:useBean> tag provide the full path of the class or import it using a page directive.

As an example, if the JavaBean was written in a package named beans, you have to say :



Or,



Make sure that your bean must have a public no-arg constructor.

Best of luck ...


Vassili ...
SCJP 5.0, SCWCD 1.4, SCJA 1.0
Michael Ku
Ranch Hand

Joined: Apr 20, 2002
Posts: 510
In your Servlet create the bean and place it into whatever scope you choose with the id you want to use
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: how to write a bean class?