In spring mvc 3, how to write a cookie while returning a ModelAndView?

Question

My controller method is returning a ModelAndView, but there is also a requirement to write a cookie back to client. Is it possible to do it in Spring? Thanks. <

Answer 1

If you add the response as parameter to your handler method (see flexible signatures of @RequestMapping annotated methods – same section for 3.2.x, 4.0.x, 4.1.x, 4.3.x, 5.0.x), you may add the cookie to the response directly:

Kotlin

@RequestMapping(["/example"])
fun exampleHandler(response: HttpServletResponse): ModelAndView {
   response.addCookie(Cookie("COOKIENAME", "The cookie's value"))
   return ModelAndView("viewname")
}

Java

@RequestMapping("/example")
private ModelAndView exampleHandler(HttpServletResponse response) {

        response.addCookie(new Cookie("COOKIENAME", "The cookie's value"));

        return new ModelAndView("viewname");
}