How to handle static content in Spring MVC?
I am developing a webapp using Spring MVC 3 and have the DispatcherServlet catching all requests to '/' like so (web.xml):
<servlet>
<servlet-name>app</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>app</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
Now this works as advertised, however how can I handle static content? Previously, before using RESTful URLs, I would have caught all *.html for example and sent that to the DispatcherServlet , but now it's a different ball game.
I have a /static/ folder which includes /styles/, /js/, /images/ etc and I would like to exclude /static/* from the DispatcherServlet .
Now I could get static resources working when I did this:
<servlet-mapping>
<servlet-name>app</servlet-name>
<url-pattern>/app/</url-pattern>
</servlet-mapping>
But I want it to have nice URLs (the point of me using Spring MVC 3) not the landing page being www.domain.com/app/
I also don't want a solution coupled to tomcat or any other servlet container, and because this is (relatively) low traffic I don't need a webserver (like apache httpd) infront.
Is there a clean solution to this?
Since I spent a lot of time on this issue, I thought I'd share my solution. Since spring 3.0.4, there is a configuration parameter that is called <mvc:resources/> (more about that on the reference documentation website) which can be used to serve static resources while still using the DispatchServlet on your site's root.
In order to use this, use a directory structure that looks like the following:
src/
springmvc/
web/
MyController.java
WebContent/
resources/
img/
image.jpg
WEB-INF/
jsp/
index.jsp
web.xml
springmvc-servlet.xml
The contents of the files should look like:
src/springmvc/web/HelloWorldController.java:
package springmvc.web;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
public class HelloWorldController {
@RequestMapping(value="/")
public String index() {
return "index";
}
}
WebContent/WEB-INF/web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
WebContent/WEB-INF/springmvc-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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<!-- not strictly necessary for this example, but still useful, see http://static.springsource.org/spring/docs/3.0.x/spring-framework-reference/html/mvc.html#mvc-ann-controller for more information -->
<context:component-scan base-package="springmvc.web" />
<!-- the mvc resources tag does the magic -->
<mvc:resources mapping="/resources/**" location="/resources/" />
<!-- also add the following beans to get rid of some exceptions -->
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />
<bean
class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping">
</bean>
<!-- JSTL resolver -->
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass"
value="org.springframework.web.servlet.view.JstlView" />
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
WebContent/jsp/index.jsp:
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<h1>Page with image</h1>
<!-- use c:url to get the correct absolute path -->
<img src="<c:url value="/resources/img/image.jpg" />" />
Hope this helps :-)
This problem is solved in spring 3.0.4.RELEASE where you can use <mvc:resources mapping="..." location="..."/> configuration element in your spring dispatcher configuration file.
Check Spring Documentation
In Spring 3.0.x add the following to your servlet-config.xml (the file that is configured in web.xml as the contextConfigLocation. You need to add the mvc namespace as well but just google for that if you don't know how! ;)
That works for me
<mvc:default-servlet-handler/>
Regards
Ayub Malik
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