How do I get Web.xml context-param values in controller action method?

Question

This feels like a basic question, but I haven't had much luck Googling.

My app connects to an SMTP server and sends mail through it. I need this SMTP server to be configurable based on which environment the app is deployed to.

How can I specify the specify the SMTP server name in my web.xml config file and access it from my Spring MVC 3.0 controller?

The controller does not extend or implement anything. It is completely annotation driven with @Controller and @RequestMapping. From what I have seen online, people access context-params via the servlet API. Being annotation driven, I do not have access to the servlet object.

score 2 · Answer 1 · answered Sep 17 '13 at 18:31

2

Adding an instance of Servletcontext and autowiring it worked for me

@Controller
public MyController {

// other instances relevant to your requirement

    @Autowired
    private ServletContext sCtx;

//other methods relevant to your requirement

}

answered Sep 17 '13 at 18:31

Chetya

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score 2 · Accepted Answer · answered Apr 07 '11 at 16:57

2

I solved this.

Make your controller implement ServletContextAware, which requires a method called

setServletContext(ServletContext servletContext)

Spring MVC will inject the servlet context into this method if your controller is ServletContextAware.

Create a private variable on your controller to store the servletController that is injected into the above method. You can now use servletContext just as you would if you were using a regular servlet.

hth.

answered Apr 07 '11 at 16:57

kmehta

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The only problem with this approach is that it tightly couples your component to the Container. While this isn't such a big deal in a Controller (really isn't the purpose of a Controller?), if you want to access those parameters in other parts of your application, I would suggest using a property placeholder: http://stackoverflow.com/a/21175824/1669464 – Pytry Jan 17 '14 at 23:31

score 1 · Answer 3 · answered Jun 16 '11 at 03:58

1

I suppose following also should work:

void action(final HttpServletRequest request) {
    final paramValue = request.getSession().getServletContext().getInitParameter("paramName");
    ...
}

answered Jun 16 '11 at 03:58

Slava Semushin

14,904
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How do I get Web.xml context-param values in controller action method?

3 Answers3