model - How to store variables in all pages requestScopes within Spring -

i add objects in jsp requestscopes using controllers.

for example, if need list categories in "localhost/products/viewall", change productscontroller adding like

@requestmapping("/products/viewall") public void viewcategories(model model) {     list<category> categories = service.findallcategories();     model.addattribute("categories", categories); } 

so, method adds list of categories requestscope.

i need same, pages of website (since variable need used in layout of site).

how can add pages requestscopes spring?

i think have @ least 2 possible options this:

• using mvc interceptor. interceptor can perform common operations requests. can extend handlerinterceptoradapter , add common model data in posthandle

• using @modelattribute annotation within controller. can use add common data request mappings within controller. can use @controlleradvice (with @modelattribute annotated methods inside) if want provide model data controllers. section using @modelattribute on method should provide additional information this.