Unable to get XML response using @RestController

Question

I am having small sample example where i am using @RestController as we know that @RestController is combination of @Controller and @ResponseBody . In below code snippet i can get the response in json format but if I want response in XML what should I try?

     @RestController
     public class CreditCardController {

     @Autowired
     CreditCradService creditcardService;

     @RequestMapping(path = "/getAllCards")
     public List<CreditCard> credit() {
         return creditcardService.getAllCards();
    }
}

I tried couple of things which did not work:

@RequestMapping(path="/getAllCards", produces = {MediaType.APPLICATION_XML_VALUE})

Answer 1

To successfully return XML payload, you need the following dependency in your project:

<dependency>
    <groupId>com.fasterxml.jackson.dataformat</groupId>
    <artifactId>jackson-dataformat-xml</artifactId>
</dependency>

Next, you have to annotate your Java class you want to return from your controller with @XmlRootElement , eg:

@XmlRootElement
public class CreditCard {
   // your data class
}

and then you can finally specify the produces attribute of your @GetMapping like you are already doing it:

@GetMapping(value = "/getAllCards", produces = MediaType.APPLICATION_XML_VALUE)
public List<CreditCard> credit(){
  return creditcartService.getAllCards();
}