Hi, everyone;
I am new to struts. Need someone help me.
Version:Struts 1.2.9, jsp 2.4, tomcat,5.0.28
Question about: struts-el, c.tld
in c.tld, not c-rt.tld
1.Document said, difference between el and standard is rtexpression.
${xxx} is supportted in EL tags, but in standard tags, ${xxx} give me the
correct answer, and <%=xx%> give me error. Why?
2.Document said logic:equal is not implete as c:if can do the same thing,
but <logic:equal name="a" value="1">
can be rewritten in <c:if>, as test attribute can't be rtexpression.
3.c:forEach not support array?
in Action
request.setAttribute("a",a); //String[] a; with two item
in jsp
<c:forEach items="a" varStatus="i">
${a[i.index]}
</c:forEach>
only loop once, and give me the first value
the following code ,give me two line, but I can't get the end tag dynamically.
<c:forEach begin="0" end="1" varStatus="i">
${a[i.index]}
</c:forEach>
4.c:if test is not do the job. the following code
<c:forEach items="a" varStatus="i">
${i.first?"Y":"N"}
<c:if test="i.first">"Y"</c:if>
</c:forEach>
${i.first?"Y":"N"} give me the correct result, but
<c:if test="i.first">"Y"</c:if> not.
where is the mistake?
5.It seems, via pageContext findAttribute and setAttribute, we can pass value
from/to EL, I am not tested, is this the right way to resolve problem? I mean
as rtexpression can't be used in these tags, we first do some calcute, then set
the result to el, and use it in tags.
6.c-rt is not work for me!
change c.tld to c-rt.tld, access the page, tomcat didn't give me the answer,
just wait, and without error.
Thanks a lot.
Regards;
Michael
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