Question

I can access Spring beans in my Servlets using

WebApplicationContext springContext = 
    WebApplicationContextUtils.getWebApplicationContext(getServletContext()); 

in the Servlet’s init method.

I was wondering is there an equivalent of the WebApplicationContext for servlet filters?
Also, is it possible to access Spring beans in a tag class?

Answer 1

For filters – use Filter.init():

public void init(FilterConfig config) {
    WebApplicationContext springContext = 
        WebApplicationContextUtils.getWebApplicationContext(config.getServletContext());
}

For tags – use TagSupport.pageContext (note that it’s not available in SimpleTagSupport):

WebApplicationContext springContext = 
    WebApplicationContextUtils.getWebApplicationContext(pageContext.getServletContext());