Problem using dynamic variable as HashMap key

[Stan Kulp]

I have created a HashMap called instantHashMap and loaded it with data from
a query .

I can load a variable with an explicit value for the HashMap key and
successfully output the HashMap value:

<c:set var = "gameno" value="2" />
<cut value = "${instantHashMap[gameno]}" />

But when I load my variable value from my data like this...

<c:set var = "gameno" value="${rvo.gameNo}" />
<cut value = "${instantHashMap[gameno]}" />

....it doesn't work.

My loaded variable value is correct because this statement does work and
reflects the data obtained from my query:

<cut value = "${gameno}" />

I have determined that the hashmap key must be a string because if I change
the original statement

<c:set var = "gameno" value="2" />

to

<c:set var = "gameno" value="${ 1 + 1 }" />

this statement

<cut value = "${gameno}" />

prints a 2, but the statatement

<cut value = "${instantHashMap[gameno]}" />

now fails.

The database data type of my gameno field is varchar, so Java should see it
as a string.

What am I doing wrong?

 

[Chris Smith]

<c:set var = "gameno" value="${rvo.gameNo}" />
<cut value = "${instantHashMap[gameno]}" />

...it doesn't work.

I have determined that the hashmap key must be a string [...]

So what is the type of the gameNo property of the rvo bean. Note that
database types are irrelevant here. We're looking for where "rvo" comes
from, and the type of its gameNo property according to the JavaBeans
spec.