How can I use the equals() method in a JSP?

StackOverflow https://stackoverflow.com/questions/338518

  •  19-08-2019
  •  | 
  •  

Question

In my JSP I need to test two objects using the equals() method. Is there a way to do this using EL, JSTL, or another tag library? I am not allowed to use scriptlets due to team rules.

I tried to use the JSTL <c:if> tag, but it only seems to use the == operator.

Was it helpful?

Solution

The JSP Expression Language operator == (or its alias, eq) performs comparison with the equals method, although some coercions are performed if one of the objects is a special type (BigDecimal, BigInteger, Double, Float, Long, Integer, Short, Byte, Character, Boolean, or String). You shouldn't need a tag for this, just ${a == b}. If that doesn't fit in your context, could you please post more information?

OTHER TIPS

The J2EE 1.4 guide has an example of just that. You'll have to setup your once function lib, but it doesn't look hard.

Licensed under: CC-BY-SA with attribution
Not affiliated with StackOverflow
scroll top