package demo; import java.text.SimpleDateFormat; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.context.annotation.Bean; import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder; @SpringBootApplication public class Application { public static void main(String[] args) { SpringApplication.run(Application.class, args); } @Bean public Jackson2ObjectMapperBuilder jacksonBuilder() { Jackson2ObjectMapperBuilder builder = new Jackson2ObjectMapperBuilder(); builder.indentOutput(true); builder.dateFormat(new SimpleDateFormat("yyyy-MM-dd")); return builder; } }