Tomcat: Cache-Control

Question

Jetty has a CacheControl parameter (can be specified webdefault.xml) that determines the caching behavior of clients (by affecting headers sent to clients).

Does Tom

Answer 1

Since Tomcat 7 there is a container provided expires filter that may help. See:

• https://tomcat.apache.org/tomcat-7.0-doc/config/filter.html#Expires_Filter
• https://tomcat.apache.org/tomcat-8.0-doc/config/filter.html#Expires_Filter
• https://tomcat.apache.org/tomcat-9.0-doc/config/filter.html#Expires_Filter

ExpiresFilter is a Java Servlet API port of Apache mod_expires. This filter controls the setting of the Expires HTTP header and the max-age directive of the Cache-Control HTTP header in server responses. The expiration date can set to be relative to either the time the source file was last modified, or to the time of the client access.

    ExpiresFilter
    org.apache.catalina.filters.ExpiresFilter
    
        ExpiresByType image
        access plus 10 days
    
    
        ExpiresByType text/css
        access plus 10 hours
    
    
        ExpiresByType application/javascript
        access plus 10 minutes
    
    
    
        ExpiresDefault
        access plus 0 seconds
    



    ExpiresFilter
    /*
    REQUEST