I am implementing a mechanism for replacing short links.
I need to forwarded request to another controller. I found examples how to do it in spring on models, but I don’t understand how to do it in RestControllers
Example what i found (use models)
@Controller
public class ShrotLinkForwardController {
@RequestMapping("/s/*")
public String myMethod(HttpServletRequest request) {
return "forward:/difmethod";
}
}
Or maybe I’m looking in the wrong direction and I need to make a filter?
UPD. I don’t know the final endpoint, it is calculated in the forwarded method. So, i cant autowired other controller
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Answer
There are 2 ways to achieve what you want.
1. Call the method on the target controller directly.
Controllers are just normal Spring beans. You can get it via autowire.
@Controller
public class ShrotLinkForwardController {
@Autowired
OtherController otherController;
@RequestMapping("/s/*")
public String myMethod(Model model) {
otherController.doStuff();
return ...;
}
}
2. Trigger the forward by returning a string
To trigger the forward, try returning a String instead of ModelAndView.
This is the approach you mentioned in your question. Note that the syntax should be forward:/forwardURL. The string after forward: is the URL pointing to another controller, not the method name.
@Controller
public class ShrotLinkForwardController {
@RequestMapping("/s/*")
public String myMethod(Model model) {
return "forward:/forwardURL";
}
}