What is the exact use of %{} notation in Struts 2? Can someone explain with a simple example where the code works when %{} is used and does not works when its not used?
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Roman C
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user182944
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2http://stackoverflow.com/questions/7824576/struts-2-sign-and-sign-in-ognl/7824666#7824666 – Dave Newton Aug 28 '13 at 17:01
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Used in OGNL to force evaluate the content in brackets as OGNL expression. For example
<s:iterator value = "myAnswers" status="stat">
<s:textfield name = "myAnswers[%{#stat.index}].name"/>
evaluation of the stat.index should be forced.
Roman C
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https://securitylab.github.com/research/apache-struts-double-evaluation be careful of forced evaluations – Rohit Salecha Dec 30 '20 at 10:11
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1@Rogit In this example forced evaluation is safe and used only once, but for different things. – Roman C Dec 30 '20 at 19:47