MongoDB SpringBoot ObjectId序列化json为String

@Configuration
public class JacksonConfig implements InitializingBean {
 
    @Resource
    private ObjectMapper objectMapper;
 
    @Override
    public void afterPropertiesSet() {
        SimpleModule simpleModule = new SimpleModule();
        //指定mongodb ObjectId 序列化方式
        simpleModule.addSerializer(ObjectId.class, ToStringSerializer.instance);
        objectMapper.registerModule(simpleModule);
    }
}