How to config the Spring mvc static resource mapping configuration:<mvc:resources mapping.../> in spring boot?

Question

I want to develop web app with spring boot and i want to address my javascript and css resources in jsp files. i config my access to this files from jsp in dispatcher-servlet.xml like this:

<mvc:resources mapping="/resources/**" location="/WEB-INF/resources/" />

and in my jsp file i can use below code to access that:

<%@ taglib prefix="spring" uri="http://www.springframework.org/tags" %>
 <img class="first-slide home-image" src="<spring:url value="/resources/images/back1.jpg"/>" alt="First slide">

how i do config mvc:resources mapping in spring boot?

Sorry; it's not really clear what you're asking. What do you expect to be happening, and what is actually happening? — Ickster
– Ickster, Commented Dec 2, 2016 at 19:52

Community · Accepted Answer · 2020-06-20 09:12:55Z

11

Take a look at the docs.

By default Spring Boot will serve static content from a directory called /static (or /public or /resources or /META-INF/resources) in the classpath or from the root of the ServletContext.

Also you can use Java config that is the same as the xml that you posted. Just override the addResourceHandlers method of @Configuration class that extends WebMvcConfigurerAdapter

@Override
public void addResourceHandlers(final ResourceHandlerRegistry registry) {
    registry.addResourceHandler("/resources/**").addResourceLocations("/resources/");
}

A good blog post about Spring resources - here.

Update:

Note that for Spring boot 2.0.5 or later, WebMvcConfigurerAdapter has been deprecated. Instead we can implements WebMvcConfigurer.
Note that for windows, we should pass string param to the addResourceLocations method like this: .addResourceLocations("file:///D:/beijing_pic_sample/")
A related thread can be found here: How do I use Spring Boot to serve static content located in Dropbox folder?

edited Jun 20, 2020 at 9:12

CommunityBot

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answered Dec 2, 2016 at 20:12

Evgeni Dimitrov

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2 Comments

ZhaoGang Over a year ago

So do I need to @Configuration my DemoApplication class which is generated by the Spring boot framework, and then make it extending the WebMvcConfigurerAdapter by overriding the addResourceHandlers method?

Evgeni Dimitrov Over a year ago

@ZhaoGang I would suggest to create another Class in the same package as DemoApplication, e.g. WebConfig that is annotated with @Configuration, extends WebMvcConfigurerAdapter, etc. Your DemoApplication is annotated with @SpringBootApplication which extends @Configuration, so you can reuse that class as well, but in future you may have to add other configs that extend other Configurer Adapters...

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