Spring MVC请求映射，这可以动态/可配置吗? [英] Spring MVC Request mapping, can this be dynamic/configurable?

问题描述

使用Spring MVC，我知道如何在每个控制器和方法/动作中设置RequestMapping.

With Spring MVC, I know how you set the RequestMapping in every controller and method/action.

但是，如果我希望它是可配置的，那么例如，我使用以下控制器:

But what if I wanted this to be configurable, so for example I the following controllers:

BlogController 
 - with methods for listing blogs entries, single entry, new, update, etc.
ArticleController
 - with methods for listing articles entries, single entry, new, update, etc.

现在，在我的应用程序中，管理员可以为webiste设置2个博客，并为文章部分设置1个，因此其网址应为:

Now in my application, the administrator can setup 2 blogs for the webiste, and 1 article section so the urls would be like:

www.example.com/article_section1/ - uses ArticleController
www.example.com/blog1/ - uses BlogController
www.example.com/blog2/ - uses BlogController

也许过了一会，管理员需要另一个文章部分，因此他们只是用新的部分来配置它，例如:

Maybe after a while the administrator wants another article section, so they just configure that with a new section like:

www.example.com/article_section2/

这必须动态/即时运行，而不必重启应用程序.

我的问题仅与如何处理到控制器的url映射有关.

My question is only concerned with how I will handle url mappings to my controllers.

Spring MVC怎么可能?

How would this be possible with Spring MVC?

我只知道如何在控制器或方法级别使用@RequestMapping("/helloWorld")将url映射到控制器，但这会使url映射固定且无法像我想要的那样进行配置.

I only know how to map urls to controllers using @RequestMapping("/helloWorld") at the controller or method level, but this makes the url mappings fixed and not configurable like how I want it.

更新:

我将路径存储在数据库中，并映射到控制器的类型，例如:

I will be storing the paths in the database, and with the mapping to the type of controller so like:

path                  controller
/article_section1/    article
/blog1/               blog
/blog2/               blog
..

有了以上信息，我如何将请求分派到正确的控制器上?

With the above information, how could I dispatch the request to the correct controller?

再次，不希望重新加载/重新部署，我意识到这将需要更多的工作，但在规范中是这样的:)

Again, not looking to reload/redeploy, and I realize this will require more work but its in the spec :)

推荐答案

这种URL映射对您有用吗?

Would this sort of URL mapping work for you?

www.example.com/blog/1/
www.example.com/blog/2/

如果是，那很容易:Spring 3支持路径变量:

If yes, then that's easy: Spring 3 supports path variables: http://static.springsource.org/spring/docs/3.0.x/reference/mvc.html#mvc-ann-requestmapping-advanced

或者，您可以创建一个通用的请求映射和您自己的子调度程序，以读取配置文件，但是我认为这可能比它值得的工作还要多.

Alternatively, you can create a generic request mapping and your own sub-dispatcher that reads a config file, but I think that's probably more work than it's worth.

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