org.threeten.bp.format.DateTimeFormatter类的使用及代码示例

x33g5p2x  于2022-01-18 转载在 其他  
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本文整理了Java中org.threeten.bp.format.DateTimeFormatter类的一些代码示例，展示了DateTimeFormatter类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。DateTimeFormatter类的具体详情如下：
包路径：org.threeten.bp.format.DateTimeFormatter
类名称：DateTimeFormatter

DateTimeFormatter介绍

[英]Formatter for printing and parsing date-time objects.

This class provides the main application entry point for printing and parsing. Common instances of DateTimeFormatter are provided:

  • Using pattern letters, such as yyyy-MMM-dd
  • Using localized styles, such as long or medium
  • Using predefined constants, such as #ISO_LOCAL_DATE

For more complex formatters, a DateTimeFormatterBuilder is provided.

In most cases, it is not necessary to use this class directly when formatting. The main date-time classes provide two methods - one for formatting, format(DateTimeFormatter formatter), and one for parsing, For example:

String text = date.format(formatter); 
LocalDate date = LocalDate.parse(text, formatter);

Some aspects of printing and parsing are dependent on the locale. The locale can be changed using the #withLocale(Locale) method which returns a new formatter in the requested locale.

Some applications may need to use the older Format class for formatting. The #toFormat() method returns an implementation of the old API.

Specification for implementors

This class is immutable and thread-safe.
[中]用于打印和分析日期时间对象的格式化程序。
此类提供用于打印和解析的主要应用程序入口点。提供了DateTimeFormatter的常见实例：
*使用模式字母，如yyyy MMM dd
*使用本地化样式，如长或中
*使用预定义的常量，如#ISO#u LOCAL_DATE
对于更复杂的格式化程序，提供了DateTimeFormatterBuilder。
在大多数情况下，格式化时不必直接使用此类。主要的日期时间类提供两种方法—一种用于格式化、格式化（DateTimeFormatter formatter），另一种用于解析，例如：

String text = date.format(formatter); 
LocalDate date = LocalDate.parse(text, formatter);

打印和解析的某些方面取决于语言环境。可以使用#withLocale（locale）方法更改区域设置，该方法在请求的区域设置中返回一个新的格式化程序。
某些应用程序可能需要使用旧的Format类进行格式化。#toFormat（）方法返回旧API的实现。
####实施者规范
这个类是不可变的，并且是线程安全的。

代码示例

代码示例来源：origin: JakeWharton/u2020

@Override public String toString() {
 // Returning null here is not ideal, but it lets retrofit drop the query param altogether.
 return createdSince == null ? null : "created:>=" + ISO_LOCAL_DATE.format(createdSince);
}

代码示例来源：origin: googleapis/google-cloud-java

private static void checkFormat(Object value, DateTimeFormatter formatter) {
 try {
  formatter.parse((String) value);
 } catch (DateTimeParseException e) {
  throw new IllegalArgumentException(e.getMessage(), e);
 }
}

代码示例来源：origin: prolificinteractive/material-calendarview

/**
 * Format using {@link TitleFormatter#DEFAULT_FORMAT} for formatting.
 */
public DateFormatTitleFormatter() {
 this(DateTimeFormatter.ofPattern(DEFAULT_FORMAT));
}

代码示例来源：origin: googleapis/google-cloud-java

Change toPb() {
 Change pb = new Change();
 // set id
 if (getGeneratedId() != null) {
  pb.setId(getGeneratedId());
 }
 // set timestamp
 if (getStartTimeMillis() != null) {
  pb.setStartTime(
    DateTimeFormatter.ISO_DATE_TIME
      .withZone(ZoneOffset.UTC)
      .format(Instant.ofEpochMilli(getStartTimeMillis())));
 }
 // set status
 if (status() != null) {
  pb.setStatus(status().name().toLowerCase());
 }
 // set a list of additions
 pb.setAdditions(Lists.transform(getAdditions(), RecordSet.TO_PB_FUNCTION));
 // set a list of deletions
 pb.setDeletions(Lists.transform(getDeletions(), RecordSet.TO_PB_FUNCTION));
 return pb;
}

代码示例来源：origin: shrikanth7698/Collapsible-Calendar-View-Android

DateTimeFormatter dateFormat = DateTimeFormatter.ofPattern("MMMM YYYY");
String formattedDate = dateFormat.format(mAdapter.getCalendar());
mTxtTitle.setText(formattedDate);
mTableHead.removeAllViews();

代码示例来源：origin: ThreeTen/threetenbp

@Override
public Object parseObject(String text) throws ParseException {
  Jdk8Methods.requireNonNull(text, "text");
  try {
    if (query == null) {
      return formatter.parseToBuilder(text, null)
              .resolve(formatter.getResolverStyle(), formatter.getResolverFields());
    }
    return formatter.parse(text, query);
  } catch (DateTimeParseException ex) {
    throw new ParseException(ex.getMessage(), ex.getErrorIndex());
  } catch (RuntimeException ex) {
    throw (ParseException) new ParseException(ex.getMessage(), 0).initCause(ex);
  }
}
@Override

代码示例来源：origin: com.github.joschi.jackson/jackson-datatype-threetenbp

@Override
  public JsonDeserializer<?> createContextual(DeserializationContext ctxt,
      BeanProperty property) throws JsonMappingException
  {
    JsonFormat.Value format = findFormatOverrides(ctxt, property, handledType());
    if (format != null) {
      if (format.hasPattern()) {
        final String pattern = format.getPattern();
        final Locale locale = format.hasLocale() ? format.getLocale() : ctxt.getLocale();
        DateTimeFormatter df;
        if (locale == null) {
          df = DateTimeFormatter.ofPattern(pattern);
        } else {
          df = DateTimeFormatter.ofPattern(pattern, locale);
        }
        //Issue #69: For instant serializers/deserializers we need to configure the formatter with
        //a time zone picked up from JsonFormat annotation, otherwise serialization might not work
        if (format.hasTimeZone()) {
          df = df.withZone(DateTimeUtils.toZoneId(format.getTimeZone()));
        }
        return withDateFormat(df);
      }
      // any use for TimeZone?
    }
    return this;
  }
}

代码示例来源：origin: googleapis/google-cloud-java

private StringBuilder toString(StringBuilder b) {
 format.formatTo(LocalDateTime.ofEpochSecond(seconds, 0, ZoneOffset.UTC), b);
 if (nanos != 0) {
  b.append(String.format(".%09d", nanos));
 }
 b.append('Z');
 return b;
}

代码示例来源：origin: googleapis/google-cloud-java

com.google.api.services.cloudresourcemanager.model.Project toPb() {
 com.google.api.services.cloudresourcemanager.model.Project projectPb =
   new com.google.api.services.cloudresourcemanager.model.Project();
 projectPb.setName(name);
 projectPb.setProjectId(projectId);
 projectPb.setLabels(labels);
 projectPb.setProjectNumber(projectNumber);
 if (state != null) {
  projectPb.setLifecycleState(state.toString());
 }
 if (createTimeMillis != null) {
  projectPb.setCreateTime(
    DateTimeFormatter.ISO_DATE_TIME
      .withZone(ZoneOffset.UTC)
      .format(Instant.ofEpochMilli(createTimeMillis)));
 }
 if (parent != null) {
  projectPb.setParent(parent.toPb());
 }
 return projectPb;
}

代码示例来源：origin: org.threeten/threetenbp

@Override
public Object parseObject(String text) throws ParseException {
  Jdk8Methods.requireNonNull(text, "text");
  try {
    if (query == null) {
      return formatter.parseToBuilder(text, null)
              .resolve(formatter.getResolverStyle(), formatter.getResolverFields());
    }
    return formatter.parse(text, query);
  } catch (DateTimeParseException ex) {
    throw new ParseException(ex.getMessage(), ex.getErrorIndex());
  } catch (RuntimeException ex) {
    throw (ParseException) new ParseException(ex.getMessage(), 0).initCause(ex);
  }
}
@Override

代码示例来源：origin: com.github.joschi.jackson/jackson-datatype-threetenbp

final Locale locale = format.hasLocale() ? format.getLocale() : prov.getLocale();
if (locale == null) {
  dtf = DateTimeFormatter.ofPattern(pattern);
} else {
  dtf = DateTimeFormatter.ofPattern(pattern, locale);
  dtf = dtf.withZone(DateTimeUtils.toZoneId(format.getTimeZone()));

代码示例来源：origin: ThreeTen/threetenbp

/**
 * Formats a date-time object using this formatter.
 * <p>
 * This formats the date-time to a String using the rules of the formatter.
 *
 * @param temporal  the temporal object to print, not null
 * @return the printed string, not null
 * @throws DateTimeException if an error occurs during formatting
 */
public String format(TemporalAccessor temporal) {
  StringBuilder buf = new StringBuilder(32);
  formatTo(temporal, buf);
  return buf.toString();
}

代码示例来源：origin: prolificinteractive/material-calendarview

@Override
public void onDateSelected(
  @NonNull MaterialCalendarView widget,
  @NonNull CalendarDay date,
  boolean selected) {
 textView.setText(selected ? FORMATTER.format(date.getDate()) : "No Selection");
}

代码示例来源：origin: googleapis/google-cloud-java

static ChangeRequestInfo fromPb(Change pb) {
 Builder builder = newBuilder();
 if (pb.getId() != null) {
  builder.setGeneratedId(pb.getId());
 }
 if (pb.getStartTime() != null) {
  builder.setStartTime(
    DateTimeFormatter.ISO_DATE_TIME.parse(pb.getStartTime(), Instant.FROM).toEpochMilli());
 }
 if (pb.getStatus() != null) {
  // we are assuming that status indicated in pb is a lower case version of the enum name
  builder.setStatus(ChangeRequest.Status.valueOf(pb.getStatus().toUpperCase()));
 }
 if (pb.getDeletions() != null) {
  builder.setDeletions(Lists.transform(pb.getDeletions(), RecordSet.FROM_PB_FUNCTION));
 }
 if (pb.getAdditions() != null) {
  builder.setAdditions(Lists.transform(pb.getAdditions(), RecordSet.FROM_PB_FUNCTION));
 }
 return builder.build();
}

代码示例来源：origin: googleapis/google-cloud-java

project.setCreateTime(
  DateTimeFormatter.ISO_DATE_TIME
    .withZone(ZoneOffset.UTC)
    .format(Instant.ofEpochMilli(System.currentTimeMillis())));
if (projects.putIfAbsent(project.getProjectId(), project) != null) {
 return Error.ALREADY_EXISTS.response(

代码示例来源：origin: prolificinteractive/material-calendarview

/**
 * Format using a default format
 */
public DateFormatDayFormatter() {
 this(DateTimeFormatter.ofPattern(DEFAULT_FORMAT, Locale.getDefault()));
}

代码示例来源：origin: org.threeten/threetenbp

/**
 * Formats a date-time object using this formatter.
 * <p>
 * This formats the date-time to a String using the rules of the formatter.
 *
 * @param temporal  the temporal object to print, not null
 * @return the printed string, not null
 * @throws DateTimeException if an error occurs during formatting
 */
public String format(TemporalAccessor temporal) {
  StringBuilder buf = new StringBuilder(32);
  formatTo(temporal, buf);
  return buf.toString();
}

代码示例来源：origin: prolificinteractive/material-calendarview

@Override
public void onDateLongClick(@NonNull MaterialCalendarView widget, @NonNull CalendarDay date) {
 final String text = String.format("%s is available", FORMATTER.format(date.getDate()));
 Toast.makeText(this, text, Toast.LENGTH_SHORT).show();
}

代码示例来源：origin: googleapis/google-cloud-java

static ZoneInfo fromPb(ManagedZone pb) {
 Builder builder = new BuilderImpl(pb.getName());
 if (pb.getDescription() != null) {
  builder.setDescription(pb.getDescription());
 }
 if (pb.getDnsName() != null) {
  builder.setDnsName(pb.getDnsName());
 }
 if (pb.getId() != null) {
  builder.setGeneratedId(pb.getId().toString());
 }
 if (pb.getNameServers() != null) {
  builder.setNameServers(pb.getNameServers());
 }
 if (pb.getNameServerSet() != null) {
  builder.setNameServerSet(pb.getNameServerSet());
 }
 if (pb.getCreationTime() != null) {
  builder.setCreationTimeMillis(
    DATE_TIME_FORMATTER.parse(pb.getCreationTime(), Instant.FROM).toEpochMilli());
 }
 return builder.build();
}

代码示例来源：origin: com.github.joschi.jackson/jackson-datatype-threetenbp

private YearMonthDeserializer()
{
  this(DateTimeFormatter.ofPattern("uuuu-MM"));
}

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