下面列出了java.time.temporal.WeekFields#dayOfWeek ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
@Test(dataProvider="weekFields")
public void test_withDayOfWeek(DayOfWeek firstDayOfWeek, int minDays) {
LocalDate day = LocalDate.of(2012, 12, 15); // Safely in the middle of a month
WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
TemporalField dowField = week.dayOfWeek();
TemporalField womField = week.weekOfMonth();
TemporalField woyField = week.weekOfYear();
int wom = day.get(womField);
int woy = day.get(woyField);
for (int dow = 1; dow <= 7; dow++) {
LocalDate result = day.with(dowField, dow);
assertEquals(result.get(dowField), dow, String.format("Incorrect new Day of week: %s", result));
assertEquals(result.get(womField), wom, "Week of Month should not change");
assertEquals(result.get(woyField), woy, "Week of Year should not change");
}
}
@Test
@UseDataProvider("data_weekFields")
public void test_parse_resolve_localizedWoWBYDow_lenient(DayOfWeek firstDayOfWeek, int minDays) {
LocalDate date = LocalDate.of(2012, 12, 31);
WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
TemporalField dowField = week.dayOfWeek();
TemporalField wowbyField = week.weekOfWeekBasedYear();
TemporalField yowbyField = week.weekBasedYear();
for (int i = 1; i <= 60; i++) {
DateTimeFormatter f = new DateTimeFormatterBuilder()
.appendValue(yowbyField).appendLiteral(':')
.appendValue(wowbyField).appendLiteral(':')
.appendValue(dowField).toFormatter().withResolverStyle(LENIENT);
int wowby = date.get(wowbyField);
int dow = date.get(dowField);
for (int j = wowby - 60; j < wowby + 60; j++) {
String str = date.get(yowbyField) + ":" + j + ":" + dow;
LocalDate parsed = LocalDate.parse(str, f);
assertEquals(" ::" + str + ": :" + i + "::" + j, parsed, date.plusWeeks(j - wowby));
}
date = date.plusDays(1);
}
}
@Test(dataProvider="weekFields")
public void test_parse_resolve_localizedWomDow(DayOfWeek firstDayOfWeek, int minDays) {
LocalDate date = LocalDate.of(2012, 12, 15);
WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
TemporalField dowField = week.dayOfWeek();
TemporalField womField = week.weekOfMonth();
for (int i = 1; i <= 15; i++) {
DateTimeFormatter f = new DateTimeFormatterBuilder()
.appendValue(YEAR).appendLiteral(':')
.appendValue(MONTH_OF_YEAR).appendLiteral(':')
.appendValue(womField).appendLiteral(':')
.appendValue(dowField).toFormatter();
String str = date.getYear() + ":" + date.getMonthValue() + ":" +
date.get(womField) + ":" + date.get(dowField);
LocalDate parsed = LocalDate.parse(str, f);
assertEquals(parsed, date, " :: " + str + " " + i);
date = date.plusDays(1);
}
}
@Test(dataProvider="weekFields")
public void test_parse_resolve_localizedWoyDow(DayOfWeek firstDayOfWeek, int minDays) {
LocalDate date = LocalDate.of(2012, 12, 15);
WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
TemporalField dowField = week.dayOfWeek();
TemporalField woyField = week.weekOfYear();
for (int i = 1; i <= 60; i++) {
DateTimeFormatter f = new DateTimeFormatterBuilder()
.appendValue(YEAR).appendLiteral(':')
.appendValue(MONTH_OF_YEAR).appendLiteral(':')
.appendValue(woyField).appendLiteral(':')
.appendValue(dowField).toFormatter();
String str = date.getYear() + ":" + date.getMonthValue() + ":" +
date.get(woyField) + ":" + date.get(dowField);
LocalDate parsed = LocalDate.parse(str, f);
assertEquals(parsed, date, " :: " + str + " " + i);
date = date.plusDays(1);
}
}
@Test(dataProvider="weekFields")
public void test_withDayOfWeek(DayOfWeek firstDayOfWeek, int minDays) {
LocalDate day = LocalDate.of(2012, 12, 15); // Safely in the middle of a month
WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
TemporalField dowField = week.dayOfWeek();
TemporalField womField = week.weekOfMonth();
TemporalField woyField = week.weekOfYear();
int wom = day.get(womField);
int woy = day.get(woyField);
for (int dow = 1; dow <= 7; dow++) {
LocalDate result = day.with(dowField, dow);
assertEquals(result.get(dowField), dow, String.format("Incorrect new Day of week: %s", result));
assertEquals(result.get(womField), wom, "Week of Month should not change");
assertEquals(result.get(woyField), woy, "Week of Year should not change");
}
}
@Test(dataProvider="weekFields")
public void test_parse_resolve_localizedWomDow_lenient(DayOfWeek firstDayOfWeek, int minDays) {
LocalDate date = LocalDate.of(2012, 12, 15);
WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
TemporalField dowField = week.dayOfWeek();
TemporalField womField = week.weekOfMonth();
for (int i = 1; i <= 60; i++) {
DateTimeFormatter f = new DateTimeFormatterBuilder()
.appendValue(YEAR).appendLiteral(':')
.appendValue(MONTH_OF_YEAR).appendLiteral(':')
.appendValue(womField).appendLiteral(':')
.appendValue(dowField).toFormatter().withResolverStyle(LENIENT);
int wom = date.get(womField);
int dow = date.get(dowField);
for (int j = wom - 10; j < wom + 10; j++) {
String str = date.getYear() + ":" + date.getMonthValue() + ":" + j + ":" + dow;
LocalDate parsed = LocalDate.parse(str, f);
assertEquals(parsed, date.plusWeeks(j - wom), " ::" + str + ": :" + i + "::" + j);
}
date = date.plusDays(1);
}
}
@Test(dataProvider="weekFields")
public void test_parse_resolve_localizedWoWBYDow_lenient(DayOfWeek firstDayOfWeek, int minDays) {
LocalDate date = LocalDate.of(2012, 12, 31);
WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
TemporalField dowField = week.dayOfWeek();
TemporalField wowbyField = week.weekOfWeekBasedYear();
TemporalField yowbyField = week.weekBasedYear();
for (int i = 1; i <= 60; i++) {
DateTimeFormatter f = new DateTimeFormatterBuilder()
.appendValue(yowbyField).appendLiteral(':')
.appendValue(wowbyField).appendLiteral(':')
.appendValue(dowField).toFormatter().withResolverStyle(LENIENT);
int wowby = date.get(wowbyField);
int dow = date.get(dowField);
for (int j = wowby - 60; j < wowby + 60; j++) {
String str = date.get(yowbyField) + ":" + j + ":" + dow;
LocalDate parsed = LocalDate.parse(str, f);
assertEquals(parsed, date.plusWeeks(j - wowby), " ::" + str + ": :" + i + "::" + j);
}
date = date.plusDays(1);
}
}
@Test(dataProvider="weekFields")
public void test_weekOfYearField(DayOfWeek firstDayOfWeek, int minDays) {
LocalDate day = LocalDate.of(2012, 12, 31); // Known to be ISO Monday
WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
TemporalField dowField = week.dayOfWeek();
TemporalField woyField = week.weekOfYear();
for (int i = 1; i <= 15; i++) {
int actualDOW = day.get(dowField);
int actualWOY = day.get(woyField);
// Verify that the combination of day of week and week of month can be used
// to reconstruct the same date.
LocalDate day1 = day.withDayOfYear(1);
int offset = - (day1.get(dowField) - 1);
int week1 = day1.get(woyField);
if (week1 == 0) {
// week of the 1st is partial; start with first full week
offset += 7;
}
offset += actualDOW - 1;
offset += (actualWOY - 1) * 7;
LocalDate result = day1.plusDays(offset);
assertEquals(result, day, "Incorrect dayOfWeek or weekOfYear "
+ String.format("%s, ISO Dow: %s, offset: %s, actualDOW: %s, actualWOM: %s, expected: %s, result: %s%n",
week, day.getDayOfWeek(), offset, actualDOW, actualWOY, day, result));
day = day.plusDays(1);
}
}
/**
* Gets the printerParser to use based on the field and the locale.
*
* @param locale the locale to use, not null
* @return the formatter, not null
* @throws IllegalArgumentException if the formatter cannot be found
*/
private DateTimePrinterParser printerParser(Locale locale) {
WeekFields weekDef = WeekFields.of(locale);
TemporalField field = null;
switch (chr) {
case 'Y':
field = weekDef.weekBasedYear();
if (count == 2) {
return new ReducedPrinterParser(field, 2, 2, 0, ReducedPrinterParser.BASE_DATE, 0);
} else {
return new NumberPrinterParser(field, count, 19,
(count < 4) ? SignStyle.NORMAL : SignStyle.EXCEEDS_PAD, -1);
}
case 'e':
case 'c':
field = weekDef.dayOfWeek();
break;
case 'w':
field = weekDef.weekOfWeekBasedYear();
break;
case 'W':
field = weekDef.weekOfMonth();
break;
default:
throw new IllegalStateException("unreachable");
}
return new NumberPrinterParser(field, (count == 2 ? 2 : 1), 2, SignStyle.NOT_NEGATIVE);
}
/**
* Gets the printerParser to use based on the field and the locale.
*
* @param locale the locale to use, not null
* @return the formatter, not null
* @throws IllegalArgumentException if the formatter cannot be found
*/
private DateTimePrinterParser printerParser(Locale locale) {
WeekFields weekDef = WeekFields.of(locale);
TemporalField field = null;
switch (chr) {
case 'Y':
field = weekDef.weekBasedYear();
if (count == 2) {
return new ReducedPrinterParser(field, 2, 2, 0, ReducedPrinterParser.BASE_DATE, 0);
} else {
return new NumberPrinterParser(field, count, 19,
(count < 4) ? SignStyle.NORMAL : SignStyle.EXCEEDS_PAD, -1);
}
case 'e':
case 'c':
field = weekDef.dayOfWeek();
break;
case 'w':
field = weekDef.weekOfWeekBasedYear();
break;
case 'W':
field = weekDef.weekOfMonth();
break;
default:
throw new IllegalStateException("unreachable");
}
return new NumberPrinterParser(field, (count == 2 ? 2 : 1), 2, SignStyle.NOT_NEGATIVE);
}
@Test(dataProvider="IsoWeekData")
public void test_WOWBY(LocalDate date, DayOfWeek dow, int week, int wby) {
WeekFields weekDef = WeekFields.ISO;
TemporalField dowField = weekDef.dayOfWeek();
TemporalField wowbyField = weekDef.weekOfWeekBasedYear();
TemporalField yowbyField = weekDef.weekBasedYear();
assertEquals(date.get(dowField), dow.getValue());
assertEquals(date.get(wowbyField), week);
assertEquals(date.get(yowbyField), wby);
}
@Test(dataProvider="IsoWeekData")
public void test_WOWBY(LocalDate date, DayOfWeek dow, int week, int wby) {
WeekFields weekDef = WeekFields.ISO;
TemporalField dowField = weekDef.dayOfWeek();
TemporalField wowbyField = weekDef.weekOfWeekBasedYear();
TemporalField yowbyField = weekDef.weekBasedYear();
assertEquals(date.get(dowField), dow.getValue());
assertEquals(date.get(wowbyField), week);
assertEquals(date.get(yowbyField), wby);
}
@Test(dataProvider="weekFields")
public void test_weekOfYearField(DayOfWeek firstDayOfWeek, int minDays) {
LocalDate day = LocalDate.of(2012, 12, 31); // Known to be ISO Monday
WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
TemporalField dowField = week.dayOfWeek();
TemporalField woyField = week.weekOfYear();
for (int i = 1; i <= 15; i++) {
int actualDOW = day.get(dowField);
int actualWOY = day.get(woyField);
// Verify that the combination of day of week and week of month can be used
// to reconstruct the same date.
LocalDate day1 = day.withDayOfYear(1);
int offset = - (day1.get(dowField) - 1);
int week1 = day1.get(woyField);
if (week1 == 0) {
// week of the 1st is partial; start with first full week
offset += 7;
}
offset += actualDOW - 1;
offset += (actualWOY - 1) * 7;
LocalDate result = day1.plusDays(offset);
assertEquals(result, day, "Incorrect dayOfWeek or weekOfYear "
+ String.format("%s, ISO Dow: %s, offset: %s, actualDOW: %s, actualWOM: %s, expected: %s, result: %s%n",
week, day.getDayOfWeek(), offset, actualDOW, actualWOY, day, result));
day = day.plusDays(1);
}
}
@Test(dataProvider="weekFields")
public void test_weekOfYearField(DayOfWeek firstDayOfWeek, int minDays) {
LocalDate day = LocalDate.of(2012, 12, 31); // Known to be ISO Monday
WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
TemporalField dowField = week.dayOfWeek();
TemporalField woyField = week.weekOfYear();
for (int i = 1; i <= 15; i++) {
int actualDOW = day.get(dowField);
int actualWOY = day.get(woyField);
// Verify that the combination of day of week and week of month can be used
// to reconstruct the same date.
LocalDate day1 = day.withDayOfYear(1);
int offset = - (day1.get(dowField) - 1);
int week1 = day1.get(woyField);
if (week1 == 0) {
// week of the 1st is partial; start with first full week
offset += 7;
}
offset += actualDOW - 1;
offset += (actualWOY - 1) * 7;
LocalDate result = day1.plusDays(offset);
assertEquals(result, day, "Incorrect dayOfWeek or weekOfYear "
+ String.format("%s, ISO Dow: %s, offset: %s, actualDOW: %s, actualWOM: %s, expected: %s, result: %s%n",
week, day.getDayOfWeek(), offset, actualDOW, actualWOY, day, result));
day = day.plusDays(1);
}
}
/**
* Gets the printerParser to use based on the field and the locale.
*
* @param locale the locale to use, not null
* @return the formatter, not null
* @throws IllegalArgumentException if the formatter cannot be found
*/
private DateTimePrinterParser printerParser(Locale locale) {
WeekFields weekDef = WeekFields.of(locale);
TemporalField field = null;
switch (chr) {
case 'Y':
field = weekDef.weekBasedYear();
if (count == 2) {
return new ReducedPrinterParser(field, 2, 2, 0, ReducedPrinterParser.BASE_DATE, 0);
} else {
return new NumberPrinterParser(field, count, 19,
(count < 4) ? SignStyle.NORMAL : SignStyle.EXCEEDS_PAD, -1);
}
case 'e':
case 'c':
field = weekDef.dayOfWeek();
break;
case 'w':
field = weekDef.weekOfWeekBasedYear();
break;
case 'W':
field = weekDef.weekOfMonth();
break;
default:
throw new IllegalStateException("unreachable");
}
return new NumberPrinterParser(field, (count == 2 ? 2 : 1), 2, SignStyle.NOT_NEGATIVE);
}
@Test(dataProvider="WeekBasedYearData")
public void test_weekBasedYears(WeekFields weekDef, int weekBasedYear,
int weekOfWeekBasedYear, int dayOfWeek, LocalDate date) {
TemporalField dowField = weekDef.dayOfWeek();
TemporalField wowbyField = weekDef.weekOfWeekBasedYear();
TemporalField yowbyField = weekDef.weekBasedYear();
assertEquals(date.get(dowField), dayOfWeek, "DayOfWeek mismatch");
assertEquals(date.get(wowbyField), weekOfWeekBasedYear, "Week of WeekBasedYear mismatch");
assertEquals(date.get(yowbyField), weekBasedYear, "Year of WeekBasedYear mismatch");
}
@Test(dataProvider="weekFields")
public void test_withWeekOfWeekBasedYear(DayOfWeek firstDayOfWeek, int minDays) {
LocalDate day = LocalDate.of(2012, 12, 31);
WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
TemporalField dowField = week.dayOfWeek();
TemporalField wowbyField = week.weekOfWeekBasedYear();
TemporalField yowbyField = week.weekBasedYear();
int dowExpected = (day.get(dowField) - 1) % 7 + 1;
LocalDate dowDate = day.with(dowField, dowExpected);
int dowResult = dowDate.get(dowField);
assertEquals(dowResult, dowExpected, "Localized DayOfWeek not correct; " + day + " -->" + dowDate);
int weekExpected = day.get(wowbyField) + 1;
ValueRange range = day.range(wowbyField);
weekExpected = ((weekExpected - 1) % (int)range.getMaximum()) + 1;
LocalDate weekDate = day.with(wowbyField, weekExpected);
int weekResult = weekDate.get(wowbyField);
assertEquals(weekResult, weekExpected, "Localized WeekOfWeekBasedYear not correct; " + day + " -->" + weekDate);
int yearExpected = day.get(yowbyField) + 1;
LocalDate yearDate = day.with(yowbyField, yearExpected);
int yearResult = yearDate.get(yowbyField);
assertEquals(yearResult, yearExpected, "Localized WeekBasedYear not correct; " + day + " --> " + yearDate);
range = yearDate.range(wowbyField);
weekExpected = Math.min(day.get(wowbyField), (int)range.getMaximum());
int weekActual = yearDate.get(wowbyField);
assertEquals(weekActual, weekExpected, "Localized WeekOfWeekBasedYear week should not change; " + day + " --> " + yearDate + ", actual: " + weekActual + ", weekExpected: " + weekExpected);
}
@Test(dataProvider="WeekBasedYearData")
public void test_weekBasedYears(WeekFields weekDef, int weekBasedYear,
int weekOfWeekBasedYear, int dayOfWeek, LocalDate date) {
TemporalField dowField = weekDef.dayOfWeek();
TemporalField wowbyField = weekDef.weekOfWeekBasedYear();
TemporalField yowbyField = weekDef.weekBasedYear();
assertEquals(date.get(dowField), dayOfWeek, "DayOfWeek mismatch");
assertEquals(date.get(wowbyField), weekOfWeekBasedYear, "Week of WeekBasedYear mismatch");
assertEquals(date.get(yowbyField), weekBasedYear, "Year of WeekBasedYear mismatch");
}
@Test(dataProvider="IsoWeekData")
public void test_WOWBY(LocalDate date, DayOfWeek dow, int week, int wby) {
WeekFields weekDef = WeekFields.ISO;
TemporalField dowField = weekDef.dayOfWeek();
TemporalField wowbyField = weekDef.weekOfWeekBasedYear();
TemporalField yowbyField = weekDef.weekBasedYear();
assertEquals(date.get(dowField), dow.getValue());
assertEquals(date.get(wowbyField), week);
assertEquals(date.get(yowbyField), wby);
}
@Test(dataProvider="weekFields")
public void test_weekOfYearField(DayOfWeek firstDayOfWeek, int minDays) {
LocalDate day = LocalDate.of(2012, 12, 31); // Known to be ISO Monday
WeekFields week = WeekFields.of(firstDayOfWeek, minDays);
TemporalField dowField = week.dayOfWeek();
TemporalField woyField = week.weekOfYear();
for (int i = 1; i <= 15; i++) {
int actualDOW = day.get(dowField);
int actualWOY = day.get(woyField);
// Verify that the combination of day of week and week of month can be used
// to reconstruct the same date.
LocalDate day1 = day.withDayOfYear(1);
int offset = - (day1.get(dowField) - 1);
int week1 = day1.get(woyField);
if (week1 == 0) {
// week of the 1st is partial; start with first full week
offset += 7;
}
offset += actualDOW - 1;
offset += (actualWOY - 1) * 7;
LocalDate result = day1.plusDays(offset);
assertEquals(result, day, "Incorrect dayOfWeek or weekOfYear "
+ String.format("%s, ISO Dow: %s, offset: %s, actualDOW: %s, actualWOM: %s, expected: %s, result: %s%n",
week, day.getDayOfWeek(), offset, actualDOW, actualWOY, day, result));
day = day.plusDays(1);
}
}