Question

我尝试了不同的public ServiceCall<CreateDocumentResponse> createDocument(CreateDocumentRequest createRequest) { Validator.notEmpty(createRequest.getEnvironmentId(), "environment_id cannot be empty"); Validator.notEmpty(createRequest.getCollectionId(), "collection_id cannot be empty"); RequestBuilder builder = RequestBuilder.post(String.format("/v1/environments/%s/collections/%s/documents", new Object[] { createRequest.getEnvironmentId(), createRequest.getCollectionId() })); if (createRequest.getConfigurationId() != null) { builder.query(new Object[] { "configuration_id", createRequest.getConfigurationId() }); } Validator.notNull(createRequest.getFile(), "Document file cannot be null"); MediaType mediaType = (MediaType)supportedMediaTypes.get(createRequest.getMediaType()); Validator.notNull(mediaType, String.format("Media Type '%s' not supported", new Object[] { createRequest.getMediaType() })); RequestBody file = InputStreamRequestBody.create(mediaType, createRequest.getFile()); MultipartBody.Builder multipartBuilder = new MultipartBody.Builder(); multipartBuilder.setType(MultipartBody.FORM); multipartBuilder.addFormDataPart("file", "filename", file); multipartBuilder.addFormDataPart("metadata", createRequest.getMetadata().toString()); builder.body(multipartBuilder.build()); Request request = createVersionedRequest(builder); return createServiceCall(request, ResponseConverterUtils.getObject(CreateDocumentResponse.class)); }（ISODateTimeFormats，dateHourMinuteSecond()）和我自己的格式dateTimeNoMillis()，以便在没有毫秒的情况下将时间戳解析为日期时间对象，但失败了。

对于每种格式，我都试图相应地修改字符串：

"yyyy-MM-dd'T'HH:mm:ss"

输出：

String value = "2011-01-24T09:45:00.000";
DateTimeFormatter formatter = ISODateTimeFormat.dateHourMinuteSecond();
value = value.substring(0, value.lastIndexOf('.'));
System.out.println("Formatted dateTime: "+formatter.parseDateTime(value));

Answer 1

我在 jodatime 2.2 中进行了测试。

formatter.parseDateTime(value)会返回DateTime个对象。将此对象传递给System.out.println时，它会调用此toString()对象的DateTime方法。看一下源代码，我发现它调用ISODateTimeFormat：

// (from jodatime source)
/**
 * Output the date time in ISO8601 format (yyyy-MM-ddTHH:mm:ss.SSSZZ).
 * 
 * @return ISO8601 time formatted string.
 */
@ToString
public String toString() {
    return ISODateTimeFormat.dateTime().print(this);
}

要获得所需的输出（无毫秒），您需要格式化DateTime对象：

DateTimeFormatter formatter = DateTimeFormat.forPattern("yyyy-MM-dd'T'HH:mm:ss");
value = value.substring(0, value.lastIndexOf('.'));
DateTime datetime = formatter.parseDateTime(value);

// *** create the formatter with the "no-millis" format ***
DateTimeFormatter formatterNoMillis = DateTimeFormat.forPattern("yyyy-MM-dd'T'HH:mm:ss");
System.out.println("Formatted dateTime: " + datetime.toString(formatterNoMillis));

输出将是：

Formatted dateTime: 2011-01-24T09:45:00

你也可以这样做：

System.out.println("Formatted dateTime: " + formatterNoMillis.print(datetime));
//the output will be the same

无法从joda dateTime对象中删除millis

1 个答案: