Search code examples
javajspjsp-tags

different way for <jsp:useBean>

There is - 

<html>
<body>
         <jsp:useBean id="user" class="user.UserData" scope="session"/>
</body>
</html>

And - 

<html>
<body>
         <%
             Object user = session.getAttribute("user.UserData") ; 
         %>
</body>
</html>

Assume user.UserData exists on the session . is there any differnce between the two ways ?

Solution

  • A well known issue in JSPs is: avoid everything you can on using Java code with your page (.jsp). So the first approach fits better, do you agree? Taglibs <jsp:useBean /> among others are a nice way of accessing code without mixing the layers. This concepts I barely introduced are part of MVC "specification".

    -- EDIT --

    The second way of acessing a bean is known as scriptlets and should be avoided as always as possible. A brief comparison can be found here JSTL vs jsp scriptlets.