Spring Boot 中 OffsetDateTime 的 Jackson 日期格式 [英] Jackson date-format for OffsetDateTime in Spring Boot

问题描述

我正在尝试从 Spring 应用程序输出 OffsetDateTime，并在我的 application.properties 中具有以下属性:

I'm trying to output an OffsetDateTime from my Spring application, and have in my application.properties these properties:

spring.jackson.serialization.WRITE_DATES_AS_TIMESTAMPS=false
spring.jackson.date-format=yyyy-MM-dd'T'HH:mm

然而，当返回日期时，它的格式为

However when the date is returned it is formatted as

"2017-01-30T16:55:00Z"

我应该如何正确配置 Spring 应用程序中的日期格式?

How should I correctly configure the format for the date in my Spring application?

推荐答案

所以我已经设法找到了一个解决方案，但如果您有替代方案，请发布.

So I've managed to figure out a solution, but if you have an alternative please post it.

我最终创建了一个新的主 ObjectMapper bean，并为 OffsetDateTime 注册了一个带有自定义序列化程序的新模块.我可以在这里设置我自己的日期格式，使用 java.time.format.DateTimeFormatter.我还必须用我的映射器注册 JavaTimeModule.

I ended up creating a new primary ObjectMapper bean, and registering a new module with a custom serializer for OffsetDateTime. I'm able to set my own date format in here, using java.time.format.DateTimeFormatter. I also had to register the JavaTimeModule with my mapper.

@Configuration
public class JacksonOffsetDateTimeMapper{

    @Primary
    @Bean
    public ObjectMapper objectMapper() {

        ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.registerModule(new JavaTimeModule());
        SimpleModule simpleModule = new SimpleModule();
        simpleModule.addSerializer(OffsetDateTime.class, new JsonSerializer<OffsetDateTime>() {
            @Override
            public void serialize(OffsetDateTime offsetDateTime, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException, JsonProcessingException {
                jsonGenerator.writeString(DateTimeFormatter.ISO_LOCAL_DATE_TIME.format(offsetDateTime));
            }
        });
        objectMapper.registerModule(simpleModule);

        return objectMapper;
    }

}

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