Java – struts 2 “%” and “#” login to ognl

Can someone tell me how to use the "%" and "#" numbers in Struts2 ognl? I'm around Google, but I can't find any valuable information about this Or give me a linked file

thank you

Solution

%Characters force ognl evaluation, so < s: property name = "% {foo}" / > will query the foo property of the stack It's not always necessary (actually few), but it's always easier to use for clarity

#Character accesses a named value stack context variable, for example, you once needed it to access a variable created with < s: set > label. You need it to access session variables, such as < s: property name = "#session. User. Name" / >

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