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javajstl

JSTL fn:subStringBetween?

I have a string like this "Promote by [email protected]" and I want to get the "abc" substring.

If I try individually,

${fn:subStringAfter("Promote by [email protected]", "by ")} gives "[email protected]"

Now I also want to eliminate the part after '@'.

I tried nesting the JSTL functions like this:

${fn:substringBefore(${fn:substringAfter("Promote by [email protected]", "by ")}, "@")}

But nesting doesn't work. Only substringBefore and subStringAfter will work individually.

Is there any way to do this?

Solution

  • Simply use a variable to store your string manipulation function:

    <c:set var = "yourString" value = "${fn:subStringAfter("Promote by [email protected]", "by ")} " />
<c:set var = "yourString" value = "${fn:substringBefore(yourString, '@')}" />

    Now yourString is set with the desired value.