Hi Hans,
Your suggestion is very helpful. Thanks again
Hao
>===== Original Message From Tag Libraries Users List
<[EMAIL PROTECTED]> =====
>Hao Ding wrote:
>> Hi,
>>
>> I have not got an idea to solve the problem below. Can anybody give me a
hand?
>>
>> Regards,
>> Hao
>>
>>
>>>===== Original Message From Tag Libraries Users List
>>
>> <[EMAIL PROTECTED]> =====
>> I have a JSP page that initially uses scriptlets, now I am going to
transfer
>> it using JSTL tags
>>
>> The initial code is
>>
>> <%@ page import="mm.*" %>
>> <jsp:useBean id="cate" scope="session" class="mm.CateBean" />
>> <jsp:useBean id="report" scope="page" class="mm.ReportBean" />
>>
>> <%
>> int idx = report.getId();
>> mm.LData ld = cate.getLData(idx);
>> %>
>>
>> How to translate the Java code into EL using JSTL core library?
>>
>> Any help will be very much appreciated.
>
>The first part is easy: The "${report.id}" EL expression corresponds
>to the "report.getId()" Java code. But there's no support for calling
>methods with arguments in the EL, so you need to change things a
>bit to do it all with JSTL and the EL. One way is to change the
>CateBean so that it has a getter method that returns an array of
>all data instead of (or in addition to) the method that returns
>one item given a key, i.e. add this method:
>
> public LData[] getLData() {...}
>
>
>You can then replace all of the above with this:
>
> <jsp:useBean id="cate" scope="session" class="mm.CateBean" />
> <jsp:useBean id="report" scope="page" class="mm.ReportBean" />
>
> <c:set var="ld" value="${cate[report.id]}" />
>
>The "ld" variable is then available in other EL expressions, and
>as a page scope attribute to custom actions etc.
>
>Hans
>--
>Hans Bergsten [EMAIL PROTECTED]
>Gefion Software http://www.gefionsoftware.com
>JavaServer Pages http://TheJSPBook.com
>
>
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