CODEWITHSUNDEEP
arraysjspjstl
vitali_y
vitali_y

Reputation: 510

JSTL <c:set> body content exact specification

can someone suggest how possible to interpret <c:set> body?

in the first case movieList is a string and in the second it is an array {"One", "Two", "Three"}

what is movieList in these examples:

Upvotes: 3

Views: 9242

Answers (2)

smilyface
smilyface

Reputation: 5523

<c:set var="alphabet">A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z</c:set>

<c:forTokens items="${alphabet}" delims="," var="letter">
    ${letter}
</c:forTokens>

Upvotes: 0

BalusC
BalusC

Reputation: 1108972

There's no difference in the interpreted Java type of the c:set's body. It are in all cases just String.

Even when you set a non-String type as c:set's body using EL such as

<c:set var="foo">${bean.someInteger}</c:set>

it'll be converted to String anyway by String#valueOf().

Only when you process the variable afterwards, there may be difference, depending on how you processed it. For example,

<c:set var="movieList">One,Two,Three</c:set>
<c:set var="realMovieArray" value="${fn:split(movieList, ',')}" />

will result ${realMovieArray} being a String[] with values of One, Two and Three.

Upvotes: 3

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