Accessing HttpServletResponse object in a normal Java class from Spring

Question

See related: Accessing HttpServletRequest object in a normal Java class from Spring

Note, this one is about RESPONSE...

"I have a normal Java class in a Spring MVC 3.06 web application.

In this class I would like to inject or get hold of the HttpServletResponse object in a method.

I know I can pass this around, but I was wondering how can I get hold of the response without passing it in to the method. Perhaps using annotations or similar?

Also, what are the "real" concerns with getting hold of the response this way, except some peoples opinions of it being ugly coding. I mean, is it unstable to access it this way? Costly performance wise?

Preferably non application server dependent way. have a normal Java class in a Spring MVC 3.06 web application.

Thanks! "

Can I ask why you're trying to work around the standard ways of acquiring a HttpServletResponse? — Paul Grime
– Paul Grime, Commented Mar 21, 2012 at 12:15
I see no reason why I should force the developer to keep passing these things in, when you can acquire them for no cost in a different way. Plus, there are places in the code where you don't neccessarly have the request or response at hand... — mjs
– mjs, Commented Mar 21, 2012 at 12:19
If you don't have the request or response to hand, then it could be argued that you're accessing it/them from the wrong place. — Paul Grime
– Paul Grime, Commented Mar 21, 2012 at 12:21
I am sure you could argue that, yes... But then again, the same argument would have been heard back in older jee and spring versions about various other things, that annotations is not needed to resolve controllers, entities, etc because you can define them in an xml config file. If there is no reason to why it could not be simpler, why not make it simpler? Code is made cleaner by having less cludd. — mjs
– mjs, Commented Mar 21, 2012 at 12:25

sinuhepop · Accepted Answer · 2012-03-21 13:31:06Z

1

I think Spring doesn't provide anything for achieving this. But it would be very easy to implement something similar as RequestContextFilter and RequestContextHolder, but for response object. An equivalent of ServletRequestAttributes probably won't be needed.

answered Mar 21, 2012 at 13:31

sinuhepop

20.4k17 gold badges75 silver badges108 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

mjs Over a year ago

Yes, an interceptor will do it, although not ideal :S

Stefan · Accepted Answer · 2012-03-21 13:58:20Z

0

Using @ResponseBody annotation you can send the methods return value directly into your response.

answered Mar 21, 2012 at 13:58

Stefan

12.5k5 gold badges53 silver badges67 bronze badges

Collectives™ on Stack Overflow

Accessing HttpServletResponse object in a normal Java class from Spring

2 Answers 2

1 Comment

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

1 Comment

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related