Re: how to loop Map model?

On Tue, Apr 8, 2008 at 3:42 PM, Zemian Deng <[email protected]> wrote:
> Hello,
>
> Have inserted a java.util.Properties into template scope, how do I loop over
> the map with all entries as key value pair?
>
> I tried something like this, and it got error:
>
> <#list Request.applicationProps as entry>
>                  <tr><td>${entry.key}</td><td>${entry.value}</td></tr>
>  </#list>

<#list Request.application.Props?keys as key>

<tr><td>${key}</td><td>${Request.applicationProps[key]}</td></tr>
</#list>

Actually, come to think of it, depending how FreeMarker is configured,
you might have to write this as:

<#list Request.application.Props?keys as key>
   <#if key?is_string>

<tr><td>${key}</td><td>${Request.applicationProps[key]}</td></tr>
  </#if>
</#list>

That's because (depending on the configuration) the map might return
the object's methods as part of the key set.

JR

> freemarker.template.TemplateException: Expected collection or sequence.
> Request.applicationProps evaluated instead to freemarker.template.SimpleHash
> on line 23, column 20 in WEB-INF/view/systeminfo.ftl.
>
>
>
> --
> Thanks,
> Zemian Deng
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