Question

Hi there I have developed a dynamic web application that uses Ajax to fetch data from databases and keep the GUI up to date but while testing it with IE8 I am experiencing caching issues.

I used the following code in my webmvc-config.xml file to stop the browser from caching:

<mvc:annotation-driven />
<mvc:interceptors>
<bean id="webContentInterceptor"
class="org.springframework.web.servlet.mvc.WebContentInterceptor">
<property name="cacheSeconds" value="0"/>
<property name="useExpiresHeader" value="true"/>
<property name="useCacheControlHeader" value="true"/>
<property name="useCacheControlNoStore" value="true"/>
</bean>
</mvc:interceptors>

and it works exactly as it should, but the problem is that now the browser obviously doesn’t cache anything. what I want to know is how to modify that xml code so that it applies to the Ajax parts of the web app (which are controlled using 5 Controller files); so that the icons..etc are still cached? The path to these controller files would be something like “/admin/**”

I know that the Spring WebContentInterceptor has properties such as “setCacheMappings” and “setPathMatcher” but there is nowhere online that I can find examples of these being using in the xml config file.

ANY help would be much appreciated, it’s really doing my head in.. Thanks. Jake

Answer 1

In your <mvc:interceptors> you can restrict the URL path each interceptor should apply to, as follows:

<mvc:interceptors>
    <mvc:interceptor>
        <mapping path="/admin/*"/>
        <bean id="webContentInterceptor" ..... />
    </mvc:interceptor>
<mvc:interceptors>

It’s all explained here.