问题
I have a page url, which looks like:
http://mydomain.com/nodes/32/article/new?return=view
After installing tomcat 7, when trying to access it I got this exception:
/nodes/${param.id}/article/new?return=${param.return}
contains invalid expression(s): javax.el.ELException: The identifier [return] is not a valid Java identifier as required by section 1.19 of the EL specification (Identifier ::= Java language identifier). This check can be disabled by setting the system property org.apache.el.parser.SKIP_IDENTIFIER_CHECK to true.
Any ideas why I get that? To fix it should I change this property in tomcat only?
回答1:
return is a reserved keyword in the Java Programming Language(tm). But luckily there is an alternative spelling. Try param['return'] instead.
来源：https://stackoverflow.com/questions/6233473/javax-el-elexception-the-identifier-return-is-not-a-valid-java-identifier