SoFunction
Updated on 2025-03-10

Analysis on the difference between dynamic INCLUDE and static INCLUDE under JSP

Dynamic INCLUDE

Implemented with the jsp:include action <jsp:include page="" flush="true" /> It will always check the changes in the included files, suitable for including dynamic pages, and can take parameters.

Static INCLUDE

Use include pseudo-code to implement it, and it will not check the changes in the included files. It is suitable for static pages.<%@ include file="" %> 

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1. The result of static include is to introduce other jsp into the current jsp, and the two are integrated.

The structure of dynamic include is independent of the two and is not merged until output (you can see the java file generated by jsp)

2. It is precisely because of this that the jsp file of dynamic include is very independent. It is a separate jsp file. The objects and page settings that need to be used must be created by themselves. Fortunately, it is consistent with the request scope of the page that includes.

Static include is purely a sharing method for writing the code outside. All variables can be shared with include its main file. The two are highly closely combined and there is no conflict between variables with the same name. Page settings can also borrow the main file.

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