How to call one controller to another controller URL in Spring MVC?

Question

Hi I am new to Spring MVC ,I want to call method from one controller to another controller ,how can I do that .please check my code below

@Controller

    @R         


        

Answer 1

You should place method getUser in a service (example UserService class) .

In the getUser controller, you call method getUser in the Service to get the User

Similarly, in the updatePswd controller, you call method getUser in the Service ,too

Answer 2

Here no need to add @reponseBody annotation as your redirecting to another controller Your code will look like

@Controller
class ControlloerClass{

        @RequestMapping(value="/getUser",method = RequestMethod.GET)
        @ResponseBody
        public User getUser(){
            User u = new User();
            //Here my dao method is activated and I wil get some userobject
            return u;
        }

        @RequestMapping(value="/updatePSWD",method = RequestMethod.GET)
        public String updatePswd(){
           //update your user password
           return "redirect:/getUser";
        }

}

Answer 3

A controller class is a Java class like any other. Although Spring does clever magic for you, using reflection to examine the annotations, your code can call methods just as normal Java code:

 public String updatePasswd()
 {
    User u = getUser();
    // manipulate u here
    return u;
 }

Answer 4

Can do like this:

@Autowired
private MyOtherController otherController;

@RequestMapping(value = "/...", method = ...)
@ResponseBody
public String post(@PathVariable String userId, HttpServletRequest request) {
    return otherController.post(userId, request);
}

Answer 5

You never have to put business logic into the controller, and less business logic related with database, the transactionals class/methods should be in the service layer. But if you need to redirect to another controller method use redirect

@RequestMapping(value="/updatePSWD")
@ResponseBody
public String updatePswd()
{
  return "redirect:/getUser.do";
}