本文整理了Java中org.threeten.bp.ZoneId.systemDefault()方法的一些代码示例，展示了ZoneId.systemDefault()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。ZoneId.systemDefault()方法的具体详情如下：
包路径：org.threeten.bp.ZoneId
类名称：ZoneId
方法名：systemDefault

ZoneId.systemDefault介绍

[英]Gets the system default time-zone.

This queries TimeZone#getDefault() to find the default time-zone and converts it to a ZoneId. If the system default time-zone is changed, then the result of this method will also change.
[中]获取系统默认时区。
查询时区#getDefault（）以查找默认时区并将其转换为ZoneId。如果更改了系统默认时区，则此方法的结果也将更改。

代码示例

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

/**
 * Obtains a clock that returns the current instant using the best available
 * system clock, converting to date and time using the default time-zone.
 * <p>
 * This clock is based on the best available system clock.
 * This may use {@link System#currentTimeMillis()}, or a higher resolution
 * clock if one is available.
 * <p>
 * Using this method hard codes a dependency to the default time-zone into your application.
 * It is recommended to avoid this and use a specific time-zone whenever possible.
 * The {@link #systemUTC() UTC clock} should be used when you need the current instant
 * without the date or time.
 * <p>
 * The returned implementation is immutable, thread-safe and {@code Serializable}.
 * It is equivalent to {@code system(ZoneId.systemDefault())}.
 *
 * @return a clock that uses the best available system clock in the default zone, not null
 * @see ZoneId#systemDefault()
 */
public static Clock systemDefaultZone() {
  return new SystemClock(ZoneId.systemDefault());
}

代码示例来源：origin: ThreeTen/threetenbp

/**
 * Obtains a clock that returns the current instant using the best available
 * system clock, converting to date and time using the default time-zone.
 * <p>
 * This clock is based on the best available system clock.
 * This may use {@link System#currentTimeMillis()}, or a higher resolution
 * clock if one is available.
 * <p>
 * Using this method hard codes a dependency to the default time-zone into your application.
 * It is recommended to avoid this and use a specific time-zone whenever possible.
 * The {@link #systemUTC() UTC clock} should be used when you need the current instant
 * without the date or time.
 * <p>
 * The returned implementation is immutable, thread-safe and {@code Serializable}.
 * It is equivalent to {@code system(ZoneId.systemDefault())}.
 *
 * @return a clock that uses the best available system clock in the default zone, not null
 * @see ZoneId#systemDefault()
 */
public static Clock systemDefaultZone() {
  return new SystemClock(ZoneId.systemDefault());
}

代码示例来源：origin: XeroAPI/Xero-Java

public OffsetDateTime deserialize(JsonParser jsonparser, DeserializationContext context)
   throws IOException, JsonProcessingException {
    String date = jsonparser.getText();
    OffsetDateTime formattedDate;
    Pattern datePatt = Pattern.compile("^/Date\\((\\d+)([+-]\\d+)?\\)/$");
    Matcher m = datePatt.matcher(date);
    if (m.matches()) {
      Long l = Long.parseLong(m.group(1));
      formattedDate = Instant.ofEpochMilli(l).atZone(ZoneId.systemDefault()).toOffsetDateTime();
    } else {
      throw new IllegalArgumentException("Wrong date format");
    }
    return formattedDate;
  }
}

代码示例来源：origin: apache/servicemix-bundles

@Nonnull
  @Override
  public LocalDateTime convert(Date source) {
    return ofInstant(toInstant(source), systemDefault());
  }
}

代码示例来源：origin: XeroAPI/Xero-Java

public LocalDate deserialize(JsonParser jsonparser, DeserializationContext context)
   throws IOException, JsonProcessingException {
    String date = jsonparser.getText();
    LocalDate formattedDate;
    Pattern datePatt = Pattern.compile("^/Date\\((\\d+)([+-]\\d+)?\\)/$");
    Matcher m = datePatt.matcher(date);
    if (m.matches()) {
      Long l = Long.parseLong(m.group(1));
      formattedDate = Instant.ofEpochMilli(l).atZone(ZoneId.systemDefault()).toLocalDate();
    } else {
      throw new IllegalArgumentException("Wrong date format");
    }
    return formattedDate;
  }
}

代码示例来源：origin: apache/servicemix-bundles

@Nonnull
  @Override
  public LocalTime convert(Date source) {
    return ofInstant(ofEpochMilli(source.getTime()), systemDefault()).toLocalTime();
  }
}

代码示例来源：origin: jeffdcamp/dbtools-android

@Nullable
public static Long localDateTimeToLong(@Nullable LocalDateTime d) {
  if (d == null) {
    return null;
  }
  return d.atZone(ZoneId.systemDefault()).toInstant().toEpochMilli();
}

代码示例来源：origin: jeffdcamp/dbtools-android

@Nullable
public static LocalDateTime longToLocalDateTime(@Nullable Long l) {
  if (l == null) {
    return null;
  }
  return Instant.ofEpochMilli(l).atZone(ZoneId.systemDefault()).toLocalDateTime();
}

代码示例来源：origin: apache/servicemix-bundles

@Nonnull
  @Override
  public LocalDate convert(Date source) {
    return ofInstant(ofEpochMilli(source.getTime()), systemDefault()).toLocalDate();
  }
}

代码示例来源：origin: apache/servicemix-bundles

@Nonnull
  @Override
  public Date convert(LocalDateTime source) {
    return toDate(source.atZone(systemDefault()).toInstant());
  }
}

代码示例来源：origin: apache/servicemix-bundles

@Nonnull
  @Override
  public Date convert(LocalDate source) {
    return toDate(source.atStartOfDay(systemDefault()).toInstant());
  }
}

代码示例来源：origin: apache/servicemix-bundles

@Nonnull
  @Override
  public Date convert(Instant source) {
    return toDate(source.atZone(systemDefault()).toInstant());
  }
}

代码示例来源：origin: apache/servicemix-bundles

@Nonnull
  @Override
  public java.time.LocalDateTime convert(LocalDateTime source) {
    Date date = toDate(source.atZone(ZoneId.systemDefault()).toInstant());
    return Jsr310Converters.DateToLocalDateTimeConverter.INSTANCE.convert(date);
  }
}

代码示例来源：origin: Krillsson/sys-API

default java.util.Date map(org.threeten.bp.LocalDate value) {
    return value != null ? DateTimeUtils.toDate(value.atStartOfDay(ZoneId.systemDefault()).toInstant()) : null;
  }
}

代码示例来源：origin: riggaroo/android-things-electricity-monitor

private Duration getDifferenceBetweenTimeAndNow(long timeStart) {
  LocalDateTime today = LocalDateTime.now();
  LocalDateTime otherTime = LocalDateTime.ofInstant(Instant.ofEpochMilli(timeStart), ZoneId.systemDefault());
  return Duration.between(otherTime, today);
}

代码示例来源：origin: gabrielittner/lazythreetenbp

/**
 * Call on background thread to eagerly load all zones. Starts with loading
 * {@link ZoneId#systemDefault()} which is the one most likely to be used.
 */
@WorkerThread
public static void cacheZones() {
  ZoneId.systemDefault().getRules();
  for (String zoneId : ZoneRulesProvider.getAvailableZoneIds()) {
    ZoneRulesProvider.getRules(zoneId, true);
  }
}

代码示例来源：origin: apache/servicemix-bundles

@Nonnull
  @Override
  public Date convert(LocalTime source) {
    return toDate(source.atDate(LocalDate.now()).atZone(systemDefault()).toInstant());
  }
}