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changes.mady.by.user James Holmes

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Comment: Added note about static access config.

...

ognl expression

description

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[0].top

would get the top of the stack cut starting from element 0 in the stack (similar to top in this case)

]]></ac:plain-text-body></ac:structured-macro>

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[1].top

would get the top of the stack cut starting from element 1 in the stack]]></ac:plain-text-body></ac:structured-macro>

...

OGNL supports accessing static properties as well as static methods. As the OGNL docs point out, you can explicitly call statics by doing the following

By default, Struts 2 is configured to disallow this--to enable OGNL's static member support you must set the struts.ognl.allowStaticMethodAccess constant to true via any of the Constant Configuration methods.

OGNL's static access looks like this:

Code Block
none
none
@some.package.ClassName@FOO_PROPERTY
@some.package.ClassName@someMethod()

...

Old Expression

New Expression

foo/blah

foo.blah

foo/someMethod()

foo.someMethod()

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../bar/blah

[1].bar.blah

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@baz

not directly supported, but #baz is similar

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.

top or [0]

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...

name

value

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#parameters['foo'] or #parameters.foo

request parameter ['foo'] (request.getParameter())

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#request['foo'] or #request.foo

request attribute ['foo'] (request.getAttribute())

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#session['foo'] or #session.foo

session attribute 'foo'

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#application['foo'] or #application.foo

ServletContext attributes 'foo'

]]></ac:plain-text-body></ac:structured-macro>

<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="22427ce652e45aff-9c1cbd82-4e8b42fd-8aab8094-918dcba3ce3ed5ffa1c3c778"><ac:plain-text-body><![CDATA[

#attr['foo'] or #attr.foo

Access to PageContext if available, otherwise searches request/session/application respectively

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