Use AbstractView instead of HandlerMethodArgumentResolver to add @PathVariable values to the model [SPR-8484]

[spring-projects-issues]

Rossen Stoyanchev opened SPR-8484 and commented

As part of #12200, milestone 2 of Spring 3.1, support was added to automatically expose @PathVariable values in the model. This is quite useful in cases where a view prepares links to related URLs (#11152). However, it can get in the way in cases where the model is used in an automated way such as when model attributes are appended to a redirect URL (#13094), or when views generate the response from the model - MarshallingView, MappingJacksonJsonView.

Rather than adding path variables to the model prior to invoking the controller method (like @ModelAttribute), path variables can be added via AbstractView.render(..), which already deals with adding static attributes and a RequestContext. This has several advantages:

• The feature applies only to methods not annotated with @ResponseBody
• View types can decide individually (e.g. turned off by default for MarshallingView and MappingJacksonJsonView)
• Applications can override the default settings via AbstractView and UrlBasedViewResolver

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Affects: 3.1 M2

Issue Links:

• Automatically expose @PathVariables in the Model [SPR-7543] #12200 Automatically expose @PathVariables in the Model