How to assign value to a jsp variable

Answer 1

you can use the following to get the value in to variable,

For example there is a string avalue,

String avalue="";

Now you can assign a property value to it by using,

<s:property value="a"/>
avalue=request.getAttribute("a");

above will gives the property value to a string variable. otherwise u can set the value and then assign it through getAttribute.

Answer 2

The struts property tag generates output not input. If you want to do something else with the value that s:property would output, the equivalent code would be getA(), which is what s:property will use to get the value that it will print.

https://cwiki.apache.org/WW/property.html

Answer 3

You can use the s:set tag for this.

For example this will call getA() from your action and put the value into "avalue", don't use name instead of var

<s:set var="avalue" value="a" />

And then you can reference it like so on the JSP:

<b>Print value defined in set tag :</b> <s:property value="#avalue" /> <br/>

Which will print out the value.

Answer 4

As Tim mentioned, <s:property value="a"/> is equivalent to calling the action's getA() method. You can get this using the JSP EL as ${action.a}.

If you need to evaluate an OGNL expression and store that in an EL variable, you would probably need a custom tag.