如何在 Spring MVC 中映射多个控制器
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How to map Multiple controllers in Spring MVC
提问by AskSharma
I have two controllers in my Application; one is userController, where I have add, delete and update methods; the other one is studentController, where I also have add, delete and update methods.
我的应用程序中有两个控制器；一个是userController，我有添加、删除和更新方法；另一个是studentController，我也有添加、删除和更新方法。
All the mappings are same in my methods using @RequestMappingannotation in both controllers. I have one confusion: if we are passing the same action from the JSP, then how will the Dispatcher find the corresponding controller? If anybody could describe this using example will be appreciated.
在我的方法中，所有映射都使用@RequestMapping两个控制器中的注释。我有一个困惑：如果我们从 JSP 传递相同的动作，那么 Dispatcher 将如何找到相应的控制器？如果有人可以使用示例来描述这一点，我们将不胜感激。
回答by Frederic Close
You have to set a @RequestMappingannotation at the class level the value of that annotation will be the prefix of all requests coming to that controller,
for example:
您必须@RequestMapping在类级别设置一个注解，该注解的值将是进入该控制器的所有请求的前缀，
例如：
you can have a user controller
你可以有一个用户控制器
@Controller
@RequestMapping("user")
public class UserController {
@RequestMapping("edit")
public ModelAndView edit(@RequestParam(value = "id", required = false) Long id, Map<String, Object> model) {
...
}
}
and a student controller
和一个学生控制器
@Controller
@RequestMapping("student")
public class StudentController {
@RequestMapping("edit")
public ModelAndView edit(@RequestParam(value = "id", required = false) Long id, Map<String, Object> model) {
...
}
}
Both controller have the same method, with same request mapping but you can access them via following uris:
两个控制器具有相同的方法，具有相同的请求映射，但您可以通过以下 uri 访问它们：
yourserver/user/edit
yourserver/student/edit
hth
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