switch case with display tag
I want to display various data in Display Tag column according to what I get from Session.
How can I integrate switch case with display tag <display:column>
?
I want to display AAA if the unit value I get from session is 1 etc.
Here is what I want to do.
switch(List.unit){
case 1:
unit = "AAA";
break;
开发者_如何转开发 case 2:
unit = "BBB";
break;
case 3:
unit = "CCC";
break;
default:
unit = "undefined";
break;
}
Thanks ahead.
You do it with displaytag exactly as you would do it without it. Just compute the desired unit in the servlet/action dispatching to your JSP and store this unit in some bean in the request. Then access this bean in the JSP :
<display:column>${theBeanStoredInTheRequest.unit}</display:column>
Or compute it in the JSP itself, using the JSTL, but it's more verbose:
<display:column>
<c:choose>
<c:when test="${sessionScope.unit == 1}">AAA</c:when>
<c:when test="${sessionScope.unit == 2}">BBB</c:when>
<c:when test="${sessionScope.unit == 3}">CCC</c:when>
<c:otherwise>undefined</c:otherwise>
</c:choose>
</display:column>
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