How to enable browser caching of static content(images, css, js) with Tomcat? Preferable solution will be editingspring MVC config files or web.xml
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3 Answers
try (with changing the values)
<mvc:resources mapping="/static/**" location="/public-resources/"
cache-period="31556926"/>
<mvc:annotation-driven/>
You can also use an interceptor:
<mvc:interceptors>
<mvc:interceptor>
<mvc:mapping path="/static/*"/>
<bean id="webContentInterceptor"
class="org.springframework.web.servlet.mvc.WebContentInterceptor">
<property name="cacheSeconds" value="31556926"/>
<property name="useExpiresHeader" value="true"/>
<property name="useCacheControlHeader" value="true"/>
<property name="useCacheControlNoStore" value="true"/>
</bean>
</mvc:interceptor>
</mvc:interceptors>
See the MVC docs
4 Comments
dillip
A tiny correction, the correct tag is "mvc:mapping" instead of "mapping, i.e., correct complete tag is : <mvc:mapping path="/static/*"/>
Peter Perháč
which should i use? i am currently in a situation where I've got both, and wonder if both are needed. Seems like I should choose one or the other. are there any benefits using mvc:resources element?
Manish Kumar
In case of
304 also client send a HTTP request to server then how it is benefiting
Nils Schmidt
@Manish The client will still send a HTTP Request to the server, but the server will reply with a tiny 304 Response instead of transferring your potentially large files (e.g. images, css, js...) back with a 200 Response. In other words, number of requests/responses is the same, but the response may be significantly smaller in size.
If Spring 3.0 is being used, <mvc:resources> is one way to implement caching of static resources. This link has some documentation.
Comments
For those who use Java configuration, you can manage caching parameters using ResourceHandlerRegistry, there is example how do I set up different caching preferences for different content types:
@Configuration
@EnableWebMvc
// ...
public class WebConfiguration extends WebMvcConfigurerAdapter {
// ...
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/ui/css/**")
.addResourceLocations("classpath:/WEB-INF/css/")
.setCacheControl(CacheControl.maxAge(1, TimeUnit.DAYS));
registry.addResourceHandler("/ui/js/**")
.addResourceLocations("classpath:/WEB-INF/js/")
.setCacheControl(CacheControl.maxAge(1, TimeUnit.DAYS));
registry.addResourceHandler("/ui/**")
.addResourceLocations("classpath:/WEB-INF/")
.setCacheControl(CacheControl.noCache());
}
// ...
}
