Learn Java for Web Development

   Set bean properties

   Set Map values

   Create scoped variables on the page, request, session, or application scope

Table 3-10 describes the attributes of the action.

Table 3-10. Attributes

Name Type Description

value Object Expression to be evaluated.

var String Name of the exported scoped variable to hold the value specified in the action.

scope String Scope for var.

target Object Target object whose property will be set. This must evaluate to a JavaBeans object

with the setter property property or to a java.util.Map object.

property String Name of the property to be set in the target object.

The tag is used to do the following:

   Set the value of a scoped variable in any JSP scope.

   Set a property of a specified target object. The target must evaluate to a

JavaBean or Map object.

Setting the Value of a Scoped Variable in Any JSP Scope

One of the tasks of the action is to set variables that can be used by other actions on pages.

Here’s the syntax:

<c:set value=""value""var=""varName" " [scope=""{page|request|session|application}""]/>

Listing 3-36 shows an example of using to set the value of the scoped variable helloVar.

Listing 3-36. Using