如何将Spring MVC控制器映射到带有和不带斜杠的uri？ [英] How do I map Spring MVC controller to a uri with and without trailing slash?

问题描述

我有一个Spring Controller，它有几个RequestMappings用于不同的URI。我的servlet是ui。 servlet的基URI仅适用于尾部斜杠。我希望我的用户不必输入尾部斜杠。

I have a Spring Controller with several RequestMappings for different URIs. My servlet is "ui". The servlet's base URI only works with a trailing slash. I would like my users to not have to enter the trailing slash.

此URI有效：

http://localhost/myapp/ui/

这个不是：

http://localhost/myapp/ui

它给我一个HTTP状态404消息。

It gives me a HTTP Status 404 message.

来自我的web.xml的servlet和映射是：

The servlet and mapping from my web.xml are:

<servlet>
    <servlet-name>ui</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>ui</servlet-name>
    <url-pattern>/ui/*</url-pattern>
</servlet-mapping>    

我的经理人：

@Controller
public class UiRootController {

    @RequestMapping(value={"","/"})
    public ModelAndView mainPage() { 
        DataModel model = initModel();
        model.setView("intro");     
        return new ModelAndView("main", "model", model);
    }

    @RequestMapping(value={"/other"})
    public ModelAndView otherPage() { 
        DataModel model = initModel();
        model.setView("otherPage");     
        return new ModelAndView("other", "model", model);
    }

}

推荐答案

如果您的Web应用程序存在于Web服务器的webapps目录中，例如 webapps / myapp / ，则可以在 http：// localhost：8080 / myapp / 假设默认的Tomcat端口。这应该使用或不使用尾部斜杠，我认为默认情况下 - 当然是Jetty v8.1.5中的情况

If your web application exists in the web server's webapps directory, for example webapps/myapp/ then the root of this application context can be accessed at http://localhost:8080/myapp/ assuming the default Tomcat port. This should work with or without the trailing slash, I think by default - certainly that is the case in Jetty v8.1.5

一旦你点击 / myapp Spring DispatcherServlet 接管，将请求路由到 web中配置的< servlet-name> 。 xml ，在您的情况下是 / ui / * 。

Once you hit /myapp the Spring DispatcherServlet takes over, routing requests to the <servlet-name> as configured in your web.xml, which in your case is /ui/*.

DispatcherServlet然后将来自 http：// localhost / myapp / ui / 的所有请求路由到 @Controller s。

The DispatcherServlet then routes all requests from http://localhost/myapp/ui/ to the @Controllers.

在 Controller 中你可以使用 @RequestMapping（value =/ *） 用于 mainPage（）方法，这将导致 http：// localhost / myapp / ui / 和 http：// localhost / myapp / ui 被路由到 mainPage（）。

In the Controller itself you can use @RequestMapping(value = "/*") for the mainPage() method, which will result in both http://localhost/myapp/ui/ and http://localhost/myapp/ui being routed to mainPage().

注意：你也应该使用Spring> = v3.0.3由于 SPR-7064

Note: you should also be using Spring >= v3.0.3 due to SPR-7064

完整性，这是我测试过的文件：

For completeness, here are the files I tested this with:

package controllers;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

@Controller
public class UiRootController {
  @RequestMapping(value = "/*")
  public ModelAndView mainPage() {
    return new ModelAndView("index");
  }

  @RequestMapping(value={"/other"})
  public ModelAndView otherPage() {
    return new ModelAndView("other");
  }
}

WEB-INF / web.xml

WEB-INF/web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
  version="3.0" metadata-complete="false">
  <servlet>
    <servlet-name>ui</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
    <!-- spring automatically discovers /WEB-INF/<servlet-name>-servlet.xml -->
  </servlet>

  <servlet-mapping>
    <servlet-name>ui</servlet-name>
    <url-pattern>/ui/*</url-pattern>
  </servlet-mapping>
</web-app>

WEB-INF / ui-servlet.xml

WEB-INF/ui-servlet.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:p="http://www.springframework.org/schema/p"
  xmlns:context="http://www.springframework.org/schema/context"
  xsi:schemaLocation="http://www.springframework.org/schema/beans
  http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
  http://www.springframework.org/schema/context
  http://www.springframework.org/schema/context/spring-context-3.0.xsd">

<context:component-scan base-package="controllers" />

<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"
  p:order="2"
  p:viewClass="org.springframework.web.servlet.view.JstlView"
  p:prefix="/WEB-INF/views/"
  p:suffix=".jsp"/>
</beans>

以及 WEB-INF / views / index.jsp中的2个JSP文件和 WEB-INF / views / other.jsp 。

结果：

• http：// localhost / myapp / - >目录列表


• http：// localhost / myapp / ui 和 http：// localhost / myapp / ui / - > index.jsp


• http：// localhost / myapp / ui / other 和 http ：// localhost / myapp / ui / other / - > other.jsp

• http://localhost/myapp/ -> directory listing
• http://localhost/myapp/ui and http://localhost/myapp/ui/ -> index.jsp
• http://localhost/myapp/ui/other and http://localhost/myapp/ui/other/ -> other.jsp

希望这会有所帮助！

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