Java – how do I map spring MVC controllers to URIs with and without trailing slashes?

I have a spring controller with several requestmappings with different URIs My servlet is "UI" The servlet's base URI applies only to trailing slashes I hope my users don't have to enter trailing slashes

This URI is available:

http://localhost/myapp/ui/

This is not:

http://localhost/myapp/ui

It gives me an HTTP status 404 message

My web Servlets and mappings in 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>

My controller

@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);
    }

}

Solution

If your web application exists in the webapps directory of the web server, such as webapps / myapp /, you can use http: / / localhost: 8080 / myapp / to access the root directory of this application context, assuming the default Tomcat port It should be possible to use or not use trailing slashes, which I think is the default - jetty V8, of course 1.5 situation

Once you call / myapp, the spring dispatcher servlet takes over and routes the request to < servlet name > on your web XML, in your case / UI / *

The dispatcher servlet then routes all requests from http: / / localhost / myapp / UI / to @ controller

In the controller itself, you can use @ requestmapping (value = "/ *") as the mainpage () method, which will cause http: / / localhost / myapp / UI / and http: / / localhost / myapp / UI to route to mainpage ()

Note: since spr-7064, you should also use spring > = v3 zero point three

For completeness, here are the files I tested:

Src / Master / Java / controller / uirootcontroller java

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 file

<?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. In 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>

There are also two JSP files in WEB-INF / views / index JSP and WEB-INF / views / other jsp.

result:

>Index of http: / / localhost / myapp / – > directory list > http: / / localhost / myapp / UI and http: / / localhost / myapp / UI / – > JSP > http: / / localhost / myapp / UI / other and http: / / localhost / myapp / UI / other / – > other jsp

I hope this can help!