在Spring MVC控制器硬件codeD @RequestMapping网址 [英] Hard-coded @RequestMapping URL in Spring MVC Controller

问题描述

我学习春天3，我用它在一个简单的Web应用程序。

I'm studying Spring 3 and I'm using it in a simple web-application.

现在我使用注解来实现一个Spring MVC的控制器，我想知道：
有没有使用 @RequestMapping 标注任何的最佳做法？

Now I'm implementing a Spring MVC Controller using annotations, and I'm wondering: Is there any best practice using @RequestMapping annotation?

我的意思是：我已经看到，一般在此注释中映射的URL是在级硬盘$ C $ ... CD

有没有办法通过URL在松散耦合的方式（获得更可重用的类）？

I mean: I've seen that usually the URL mapped in this annotation is hardcoded in the class...
Is there a way to pass the URL in a 'loosely coupled way' (to obtain a more reusable class)?

我知道有的，可用于一些的外卡，但我认为这不是解决办法...难道我错了吗？

I know that there are some wild cards that can be used, but I think that isn't the solution... Am I wrong?

编辑：

我添加了一个例子来更好地解释我的疑问。

I add an example to better explain my doubt.

假设我希望我的控制器由请求触发到 /foo/bar/baz/mypage.htm ，在我的控制器的处理方法将与<注解code> @RequestMapping（/富/酒吧/巴兹/我的空间'）。

Suppose I want my controller to be triggered by a request to /foo/bar/baz/mypage.htm, in my controller the handler method will be annotated with @RequestMapping("/foo/bar/baz/mypage").

现在我决定改变URL触发我的控制器到 /foo/bar/otherpage.htm ，所以我需要编辑我的课，把 @RequestMapping（/富/酒吧/ otherpage）我的处理方法，重新编译项目，然后重新部署它。

Now I decide to change the URL triggering my controller into /foo/bar/otherpage.htm, so i need to edit my class, put @RequestMapping("/foo/bar/otherpage") on my handler method, recompile the project and deploy it again.

在我看来不是那么实用...

It seems to me not so practical...

推荐答案

目前注解控制器都不是很可配置的。

Currently annotated controllers aren't very configurable.

据我所知，唯一可行的办法解决这个问题是使用替代<一个href=\"http://static.springsource.org/spring/docs/3.0.x/javadoc-api/org/springframework/web/servlet/HandlerMapping.html\"相对=nofollow> 的HandlerMapping 取值为了配置控制器的基本URL。例如，如下所示：

As far as I know, the only possible approach to this problem is to use alternative HandlerMappings in order to configure "base URLs" of controllers. For example, as follows:

// Note the absense of @Controller to prevent this controller
// from being discovered by DefaultAnnotationHandlerMapping
public class FooController {
    @RequestMapping("/list") public String list(...) { ... }
    @ReqeustMapping("/save") public String save(...) { ... }
}

。

<bean 
    class = "org.springframework.web.servlet.mvc.support.ControllerBeanNameHandlerMapping" />

<bean name = "/foo" class = "FooController" />
<bean name = "/bar" class = "FooController" />

在这个例子中 FooController的处理 /富/列表， /富的两个实例/保存， /酒吧/列表键，分别为 /酒吧/保存。

In this example two instances of FooController handle /foo/list, /foo/save, /bar/list and /bar/save respectively.

即将举行春季3.1将有一个改进的弹簧3.1架构（的春3.1 M2：Spring MVC的增强），这似乎是更灵活，虽然我还没有检查它尚未

The upcoming Spring 3.1 will have an improved Spring 3.1 architecture (Spring 3.1 M2: Spring MVC Enhancements) that seems to be more flexible, though I haven't checked it yet.

这篇关于在Spring MVC控制器硬件codeD @RequestMapping网址的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！