spring boot @ResponseBody转换JSON 时 Date 类型处理方法【两种方法】

#时间戳统一转换
　　spring.jackson.date-format=yyyy-MM-dd HH:mm:ss
　　spring.jackson.time-zone=GMT+8

@JsonFormat(timezone = "GMT+8", pattern = "yyyyMMddHHmmss")
　　private Date createTime;

@Configuration
public class WebMvcConfig extends WebMvcConfigurerAdapter {
@Override
  public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
    super.configureMessageConverters(converters);
    FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter();
    FastJsonConfig fastJsonConfig = new FastJsonConfig();
    fastJsonConfig.setSerializerFeatures(
        SerializerFeature.WriteNullListAsEmpty,
        SerializerFeature.WriteMapNullValue,
        SerializerFeature.WriteNullStringAsEmpty
    );
    //此处是全局处理方式
    fastJsonConfig.setDateFormat("yyyy-MM-dd HH:mm:ss");
    fastConverter.setFastJsonConfig(fastJsonConfig);
    List<MediaType> supportedMediaTypes = new ArrayList<MediaType>();
    supportedMediaTypes.add(MediaType.ALL); // 全部格式
    fastConverter.setSupportedMediaTypes(supportedMediaTypes);
    converters.add(fastConverter);
  }  
}

　@JSONField(format="yyyyMMdd")
　　private Date createTime;

  compile group: 'com.fasterxml.jackson.core', name: 'jackson-core', version: '2.9.4'
  compile group: 'com.fasterxml.jackson.core', name: 'jackson-databind', version: '2.9.4'
  compile group: 'com.fasterxml.jackson.core', name: 'jackson-annotations', version: '2.9.4'

compile group: 'org.projectlombok', name: 'lombok', version: '1.16.20'

@lombok.Getter @lombok.Setter private long id;
@lombok.Getter @lombok.Setter private String name;