CODEWITHSUNDEEP
jsonspringspring-bootjacksonspring-restcontroller
BillMan
BillMan

Reputation: 9934

Configure custom ObjectMapper for @RestController within Springboot

I have two ObjectMappers configured within a springboot application. I declare these in a configuration class like the following:

@Configuration
public class Config {

  @Bean
  @Primary
  public ObjectMapper getPrimary() {
    return new ObjectMapper();
  }


  @Bean
  public ObjectMapper getSecondary() {
    return new ObjectMapper();
  }

}

The @Primary ObjectMapper works without issue. I'm at a loss in understanding how to get a @RestController to use the secondary ObjectMapper though. Any help is appreciated.

Upvotes: 0

Views: 687

Answers (2)

Dmitrii Bocharov
Dmitrii Bocharov

Reputation: 935

you need to use qualifiers:

@Configuration
public class Config {

  @Bean("myPrimaryOjectMapper")
  @Primary
  public ObjectMapper getPrimary() {
    return new ObjectMapper();
  }


  @Bean("mySecondaryOjectMapper")
  public ObjectMapper getSecondary() {
    return new ObjectMapper();
  }

}

and then when injecting:


@Autowired
@Qualifier("mySecondaryOjectMapper")
private ObjectMapper objectMapper;

You can read more for example here: https://www.baeldung.com/spring-qualifier-annotation#qualifierVsPrimary

Upvotes: 0

BillMan
BillMan

Reputation: 9934

FWIW, I wasn't able to get it to work with the @RestController implicitly, but I ended up injecting the secondary ObjectMapper into the rest controller, and then directly using the mapper to parse the input.

Upvotes: 0

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