我正在尝试设置我的 spring 引导配置以使用我的自定义 serializer 和 deserializer。
反序列化器代码
public class CustomZonedDateTimeDeserializer extends JsonDeserializer<ZonedDateTime> {
@Override
public ZonedDateTime deserialize(JsonParser jsonParser, DeserializationContext context)
throws IOException, JsonProcessingException {
ObjectCodec oc = jsonParser.getCodec();
TextNode node = (TextNode) oc.readTree(jsonParser);
String dateString = node.textValue();
return ZonedDateTime.parse(dateString, CustomZonedDateTimeSerializer.formatter);
}
@Override
public Class<?> handledType() {
return ZonedDateTime.class;
}
序列化器代码
public class CustomZonedDateTimeSerializer extends JsonSerializer<ZonedDateTime> {
@Override
public Class<ZonedDateTime> handledType() {
return ZonedDateTime.class;
}
public final static DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ssZ");
@Override
public void serialize(ZonedDateTime date, JsonGenerator generator, SerializerProvider provider)
throws IOException, JsonProcessingException {
final String dateString = date.format(formatter);
generator.writeString(dateString);
}
}
这是我的配置:
@Configuration
public class JacksonConfiguration {
@Autowired
Jackson2ObjectMapperBuilder jacksonBuilder;
@PostConstruct
public void configureJackson() {
final CustomZonedDateTimeSerializer serializer = new CustomZonedDateTimeSerializer();
jacksonBuilder.serializers(serializer);
final CustomZonedDateTimeDeserializer deserializer = new CustomZonedDateTimeDeserializer();
jacksonBuilder.deserializers(deserializer);
}
}
我正在创建一个 REST API,所以我在我的 Controller 中有这个:
@RequestMapping(value = "date", method = { RequestMethod.GET })
@ApiOperation(value = "", notes = "")
public ResponseWrapper<String> testDATE(
@RequestParam @ApiParam(value = "", required = true) ZonedDateTime date) {
System.out.println(date.toString());
return new ResponseWrapper<String>(date.toString());
}
到目前为止我已经尝试过: 创建一个自定义模块并将其作为@Bean 添加到配置中,将序列化器和反序列化器添加到配置中的 jackonBuilder 对象,以及类似于此 example 中的代码
我是否遗漏了什么或做错了什么? 每次尝试都会出现以下错误:
"Failed to convert value of type 'java.lang.String' to required type 'java.time.ZonedDateTime'; nested exception is org.springframework.core.convert.ConversionFailedException: Failed to convert from type [java.lang.String] to type [@org.springframework.web.bind.annotation.RequestParam @io.swagger.annotations.ApiParam java.time.ZonedDateTime] for value '2018-07-10T00:00:00+0000'; nested exception is java.lang.IllegalArgumentException: Parse attempt failed for value [2018-07-10T00:00:00+0000]"
我每次都发送以下值:2018-07-10T00:00:00+0000,该值甚至没有到达我有断点的反序列化器。
最佳答案
在你的配置类中添加这个 bean:
@Bean
public Jackson2ObjectMapperBuilder configureObjectMapper() {
Jackson2ObjectMapperBuilder builder = new Jackson2ObjectMapperBuilder();
final CustomZonedDateTimeSerializer serializer = new CustomZonedDateTimeSerializer();
builder.serializers(serializer);
final CustomZonedDateTimeDeserializer deserializer = new CustomZonedDateTimeDeserializer();
builder.deserializers(deserializer);
return builder;
}
关于java - Spring Boot 不为 ZonedDateTime 使用自定义反序列化器,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/51497388/