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Question on JSP EL

Question on JSP EL# Java - 爪哇娇娃

T*e2006-09-18 07:09

1 楼

It seems that EL is trying hard to convert my strings to double values. I
am confused. I remember the plus operator (+) can be used to concatenate
strings. Did I do anything wrong? What's the better way to deal with this?
I am using Tomcat 5.5.17 and JDK 1.5.0_06 on WinXP Home.
Thanks.
1: Working code
String resourceType = "service";
pageContext.setAttribute("resourceType", resourceType);
pageContext.setAttribute("resourceName", resourceType + "Name");
%>

select
ri.${resour

m*t2006-09-18 07:09

2 楼

Nope, + does not concatenate two strings in EL. There isn't any way to
concatenate two strings within the ${} scope, not that I know of. I know, it
's surprisingly stupid.

g*g2006-09-18 07:09

3 楼

Right, you can't do that. But you can do

it

【在 m******t 的大作中提到】

: Nope, + does not concatenate two strings in EL. There isn't any way to
: concatenate two strings within the ${} scope, not that I know of. I know, it
: 's surprisingly stupid.

T*e2006-09-18 07:09

4 楼

Thanks. This is a solution.
However, not being able to concatenate strings within EL makes simple things
more difficult and less straightforward. I agree with magicfat that this
is stupid. Anyway, I am not that smart either and I can live with it :)

【在 g*****g 的大作中提到】

: Right, you can't do that. But you can do
: :
: it