Spring boot:对于具有相同对象类型的"GET“和"POST/PUT”请求，json响应中的日期格式不同

@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
private Date date;

spring.jackson.date-format=yyyy-MM-dd HH:mm:ss
spring.jackson.time-zone=GMT+8

public class CustomDateSerializer extends JsonSerializer<Date> {
    private static final SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

    @Override
    public void serialize(Date date, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException {
        String formattedDate = dateFormat.format(date);
        jsonGenerator.writeString(formattedDate);
    }
}

public class CustomDateDeserializer extends JsonDeserializer<Date> {
    private static final SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

    @Override
    public Date deserialize(JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException {
        String date = jsonParser.getText();
        try {
            return dateFormat.parse(date);
        } catch (ParseException e) {
            throw new RuntimeException(e);
        }
    }
}

public class MyEntity {
    @JsonSerialize(using = CustomDateSerializer.class)
    @JsonDeserialize(using = CustomDateDeserializer.class)
    private Date date;
}