1.配置文件中进行修改

jackson:
    date-format: yyyy-MM-dd HH:mm:ss

这样序列化后，Date类型会被格式化成配置中的格式。

2.配置类中配置
 

创建JacksonConfig.java

@Configuration
public class JacksonConfig {

    @Bean
    @Order(Ordered.HIGHEST_PRECEDENCE)
    public Jackson2ObjectMapperBuilderCustomizer customJackson() {
        return new Jackson2ObjectMapperBuilderCustomizer() {
            @Override
            public void customize(Jackson2ObjectMapperBuilder builder) {
                builder.serializerByType(LocalDateTime.class,
                        new LocalDateTimeSerializer(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
                builder.serializerByType(LocalDate.class,
                        new LocalDateSerializer(DateTimeFormatter.ofPattern("yyyy-MM-dd")));
                builder.serializerByType(LocalTime.class,
                        new LocalTimeSerializer(DateTimeFormatter.ofPattern("HH:mm:ss")));
                builder.deserializerByType(LocalDateTime.class,
                        new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
                builder.deserializerByType(LocalDate.class,
                        new LocalDateDeserializer(DateTimeFormatter.ofPattern("yyyy-MM-dd")));
                builder.deserializerByType(LocalTime.class,
                        new LocalTimeDeserializer(DateTimeFormatter.ofPattern("HH:mm:ss")));
                builder.serializationInclusion(JsonInclude.Include.NON_NULL);
                builder.failOnUnknownProperties(false);
                builder.featuresToDisable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
            }
        };
    }
}

 

1、Springboot默认使用的json解析框架是jackson框架

2、jackson解析框架在解析实体类里面是Date数据类型的数据时的默认格式是：UTC类型，即yyyy-MM-dd’T’HH:mm:ss.SSS 并且默认为+8时区，即时间基础上加8小时

请求数据格式为： 'yyyy-MM-dd HH:mm:ss'，但是在接收到数据的时候，需要通过jackson把数据转化成Dto对象。jackson转化的时候，默认的时间格式是 'yyyy-MM-dd'T'HH:mm:ss.SSS’，