Detailed explanation of struts 2 using ognl to traverse map

• Java

I Code in action: mapaction java

II Front end test page: testmap jsp

Java code

Attachment: the type of map is map < integer, list (menu) > traversal at the front end, session The storage type of powerlist is: list (menu)

summary

The above is all about the detailed explanation of the map traversal method of struts 2 using ognl. I hope it will be helpful to you. Interested friends can refer to: detailed explanation of basic syntax and usage of ognl expression. Struts 2 realizes projection through ognl expression. Detailed explanation of struts 2 ognl expression examples, etc. Thank you for your support.

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