| Same contract as for HttpServlet's getLastModified method.
Invoked before request processing.
The return value will be sent to the HTTP client as Last-Modified header,
and compared with If-Modified-Since headers that the client sends back.
The content will only get regenerated if there has been a modification.
Parameters: request - current HTTP request the time the underlying resource was last modified, or -1meaning that the content must always be regenerated See Also: org.springframework.web.servlet.HandlerAdapter.getLastModified See Also: javax.servlet.http.HttpServlet.getLastModified |