Mvc global filters

[genie137]

Possible implementation of #3177, global filters, to provide feature parity with the reactive server.

This implementation provides the following:

• An interface for a GlobalRequestFilter, that provides an entry point to manipulate requests.
  • Users should implement this interface in their own class, that provide as bean.
• An interface for a GlobalResponseFilter, that provides an entry point to manipulate responses.
• A GlobalFilterProcessor, that wraps the GlobalRequestFilter and GlobalResponseFilter with Function and BiFunction respectively.
• Modified the RouterFunctionHolderFactory to inject the global filters into the router function of the route.
• Modified the GatewayServerMvcAutoConfiguration to create a GlobalFilterProcessor bean and inject that bean into the RouterFunctionHolderFactory.

I would like some feedback on the implementation. If you are happy with the implementation i will write more detailed unittests

[spencergibb]

The issue you mentioned is for default filters, not global filters. I don't think mvc gateway server needs global filters and this is much more involved than what I would consider for default filters

[huxiyu]

How to customize default filters? I couldn't find default filters in the MVC gateway

The issue you mentioned is for default filters, not global filters. I don't think mvc gateway server needs global filters and this is much more involved than what I would consider for default filters

[huxiyu]

The issue you mentioned is for default filters, not global filters. I don't think mvc gateway server needs global filters and this is much more involved than what I would consider for default filters

I want to use custom global filters or default filters to log internal interface call time, entry headers, and other information. I implemented it using GlbalFilter in Webflux.