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Dought about useBean and getProperty

 
Narendra Dhande
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Hi,

To use the <jsp:getProperty > action, is it required to define the bean using <jsp:useBean> ?

I am asking this question, because I found that the <jsp:getProperty> work on any scoped beans. I tested the following.



Here Person is valid bean.
After running this JSP file the output is narendra.

Any clarification please.

Thanks
 
Roy Simon
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The jsp:getProperty tag is used as follows:
<jsp:getProperty name = "myName" property = "myProperty">
so it is seen that the name attribute has to be an id of some bean. Hence somewhere before the getProperty tag the useBean tag has to be there.
You can check the c:set tag to when is similar to this but only much cooler....
Hope this helps
Regards
Simon
 
Narendra Dhande
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Hi,


so it is seen that the name attribute has to be an id of some bean. Hence somewhere before the getProperty tag the useBean tag has to be there.


I was also thinking in the same direction. But the above posted code excuted without error. I tested it on tomcat and Sn Java Application Server 8.1. I addition to this, if I try

<jsp:useBean id="pr" class="mypackage.Person">
<jsp:setProperty name="pr" property="name" value="narendra"/>
</jsp:useBean>

<% Person p = new Person();
p.setName("SomeName");
pageContext.setAttribute("pr", p);
%>

The in the same program, I use the following

<jsp:getProperty name="pr" property="name" />

It is printing "SomeName" not "narendra"

Thanks
 
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