JSP tag which is retrieved as String is not executed -

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JSP tag which is retrieved as String is not executed -

i have java class responsible rendering html elements , have predefined tags created them.

public class startdatefield { private static startdatefield object; private startdatefield(){} public static startdatefield getinstance(){ if(object == null){ object = new startdatefield(); } homecoming object; } public string render(){ string field = "<field:text name='first_name' size='65' maxlen='63' style='field' />"; homecoming field; }

}

then tried phone call render method within jsp tag (which has import above class)

<td colspan="2"> <%=startdatefield.getinstance(subpagebean).render()%> </td>

but displays nothing. when go view source shows returned text instead of executing tag. how caused , how can solve it?

<%= someexpression() %> means: evaluate java look someexpression(), , write result http response writer. obviously, you're writing <field:text name='first_name' size='65' maxlen='63' style='field' /> straight response.

a jsp tag must in static source code of jsp evaluated.

note jstl standard library of tags. <field:text> custom jsp tag. it's not jstl tag.

jsp jsp-tags

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