Java日期时间API系列27-----Jdk8中java.time包中的新的日期时间API类，使用xk-time工具类创建日历应用。
内容导读
互联网集市收集整理的这篇技术教程文章主要介绍了Java日期时间API系列27-----Jdk8中java.time包中的新的日期时间API类，使用xk-time工具类创建日历应用。，小编现在分享给大家，供广大互联网技能从业者学习和参考。文章包含8975字，纯文字阅读大概需要13分钟。
内容图文
1.日历相关类
1.1 日历类 CalendarWrapper
package
com.xkzhangsan.time.calendar;
import
java.io.Serializable;
import
java.util.List;
import
java.util.Map;
import
java.util.concurrent.ConcurrentHashMap;
/**
* 日历
*
* @ClassName: CalendarWrapper
* @Description: CalendarWrapper
*
@author
xkzhangsan
* @date 2020年03月18日
*/
public
class CalendarWrapper implements Serializable{
privatestaticfinallong serialVersionUID = 1L;
private List<YearWrapper> years;
private Map<String, DayWrapper> dayMap = new ConcurrentHashMap<String, DayWrapper>();
public CalendarWrapper() {
super();
}
public CalendarWrapper(List<YearWrapper> years, Map<String, DayWrapper> dayMap) {
super();
this.years = years;
this.dayMap = dayMap;
}
public CalendarWrapper(List<YearWrapper> years) {
super();
this.years = years;
}
public List<YearWrapper> getYears() {
return years;
}
publicvoid setYears(List<YearWrapper> years) {
this.years = years;
}
public Map<String, DayWrapper> getDayMap() {
return dayMap;
}
publicvoid setDayMap(Map<String, DayWrapper> dayMap) {
this.dayMap = dayMap;
}
}
1.2 日历年类 YearWrapper
package
com.xkzhangsan.time.calendar;
import
java.io.Serializable;
import
java.util.List;
import
com.xkzhangsan.time.calculator.DateTimeCalculatorUtil;
/**
* 年
*
* @ClassName: YearWrapper
* @Description: YearWrapper
*
@author
xkzhangsan
* @date 2020年03月18日
*/
public
class YearWrapper implements Serializable{
privatestaticfinallong serialVersionUID = 1L;
privateint year;
private List<MonthWrapper> months;
privateboolean isLeapYear;
public YearWrapper(int year, List<MonthWrapper> months) {
super();
this.year = year;
this.months = months;
this.isLeapYear = DateTimeCalculatorUtil.isLeapYear(year);
}
publicint getYear() {
return year;
}
publicvoid setYear(int year) {
this.year = year;
}
public List<MonthWrapper> getMonths() {
return months;
}
publicvoid setMonths(List<MonthWrapper> months) {
this.months = months;
}
publicboolean isLeapYear() {
return isLeapYear;
}
publicvoid setLeapYear(boolean isLeapYear) {
this.isLeapYear = isLeapYear;
}
}
1.3 日历月类 MonthWrapper
package
com.xkzhangsan.time.calendar;
import
java.io.Serializable;
import
java.util.List;
/**
* 月
*
* @ClassName: MonthWrapper
* @Description: MonthWrapper
*
@author
xkzhangsan
* @date 2020年03月18日
*/
public
class MonthWrapper implements Serializable{
privatestaticfinallong serialVersionUID = 1L;
privateint month;
private List<DayWrapper> days;
public MonthWrapper(int month, List<DayWrapper> days) {
super();
this.month = month;
this.days = days;
}
publicint getMonth() {
return month;
}
publicvoid setMonth(int month) {
this.month = month;
}
public List<DayWrapper> getDays() {
return days;
}
publicvoid setDays(List<DayWrapper> days) {
this.days = days;
}
}
1.4 日历日类 DayWrapper
package
com.xkzhangsan.time.calendar;
import
java.io.Serializable;
import
java.time.LocalDateTime;
import
java.util.Date;
import
com.xkzhangsan.time.calculator.DateTimeCalculatorUtil;
import
com.xkzhangsan.time.constants.Constant;
import
com.xkzhangsan.time.converter.DateTimeConverterUtil;
import
com.xkzhangsan.time.formatter.DateTimeFormatterUtil;
/**
* 日
*
* @ClassName: DayWrapper
* @Description: DayWrapper
*
@author
xkzhangsan
* @date 2020年03月18日
*/
public
class DayWrapper implements Serializable{
privatestaticfinallong serialVersionUID = 1L;
private Date date;
private LocalDateTime localDateTime;
private String dateStr;
privateint day;
private String weekStr;
private Object obj;
public DayWrapper(LocalDateTime localDateTime) {
this(localDateTime, null);
}
public DayWrapper(LocalDateTime localDateTime, Object obj) {
super();
this.localDateTime = localDateTime;
this.date = DateTimeConverterUtil.toDate(localDateTime);
this.dateStr = DateTimeFormatterUtil.formatToDateStr(localDateTime);
this.day = localDateTime.getDayOfMonth();
if(Constant.getInstance().isChinese()){
this.weekStr = DateTimeCalculatorUtil.getDayOfWeekCn(localDateTime);
}else{
this.weekStr = DateTimeCalculatorUtil.getDayOfWeekEnLong(localDateTime);
}
this.obj = obj;
}
public Date getDate() {
return date;
}
publicvoid setDate(Date date) {
this.date = date;
}
public LocalDateTime getLocalDateTime() {
return localDateTime;
}
publicvoid setLocalDateTime(LocalDateTime localDateTime) {
this.localDateTime = localDateTime;
}
public Object getObj() {
return obj;
}
publicvoid setObj(Object obj) {
this.obj = obj;
}
public String getDateStr() {
return dateStr;
}
publicvoid setDateStr(String dateStr) {
this.dateStr = dateStr;
}
publicint getDay() {
return day;
}
publicvoid setDay(int day) {
this.day = day;
}
public String getWeekStr() {
return weekStr;
}
publicvoid setWeekStr(String weekStr) {
this.weekStr = weekStr;
}
}
1.5 日历工具类 CalendarUtil
package
com.xkzhangsan.time.calendar;
import
java.time.LocalDateTime;
import
java.time.YearMonth;
import
java.util.ArrayList;
import
java.util.List;
import
java.util.Map;
import
java.util.concurrent.ConcurrentHashMap;
import
com.xkzhangsan.time.calculator.DateTimeCalculatorUtil;
import
com.xkzhangsan.time.formatter.DateTimeFormatterUtil;
/**
* 日历工具类
*
* @ClassName: CalendarUtil
* @Description: CalendarUtil
*
@author
xkzhangsan
* @date 2020年03月18日
*/
public
class
CalendarUtil {
private
CalendarUtil() {
}
/**
* 生成指定年月的日历
*
@param
year
*
@param
month
*
@return
*/
public
static CalendarWrapper generateCalendar(int year, int month){
CalendarWrapper calendarWrapper = new CalendarWrapper();
Map<String, DayWrapper> dayMap = new ConcurrentHashMap<String, DayWrapper>();
List<LocalDateTime> localDateTimeList = DateTimeCalculatorUtil.getLocalDateTimeList(YearMonth.of(year, month));
if(localDateTimeList == null || localDateTimeList.isEmpty()){
return calendarWrapper;
}
List<DayWrapper> dayWrapperList = new ArrayList<>();
localDateTimeList.stream().forEach(localDateTime->{
DayWrapper dayWrapper = new DayWrapper(localDateTime);
dayWrapperList.add(dayWrapper);
dayMap.put(DateTimeFormatterUtil.formatToDateStr(localDateTime), dayWrapper);
});
MonthWrapper monthWrapper = new MonthWrapper(month, dayWrapperList);
List<MonthWrapper> monthWrapperList = new ArrayList<>();
monthWrapperList.add(monthWrapper);
YearWrapper yearWrapper = new YearWrapper(year, monthWrapperList);
List<YearWrapper> yearWrapperList = new ArrayList<>();
yearWrapperList.add(yearWrapper);
calendarWrapper = new CalendarWrapper(yearWrapperList, dayMap);
return calendarWrapper;
}
/**
* 生成指定年的日历
* @param year
* @return*/publicstatic CalendarWrapper generateCalendar(int year){
CalendarWrapper calendarWrapper = new CalendarWrapper();
Map<String, DayWrapper> dayMap = new ConcurrentHashMap<String, DayWrapper>();
List<MonthWrapper> monthWrapperList = new ArrayList<>();
for(int i=1; i<=12; i++){
List<LocalDateTime> localDateTimeList = DateTimeCalculatorUtil.getLocalDateTimeList(YearMonth.of(year, i));
if(localDateTimeList == null || localDateTimeList.isEmpty()){
continue;
}
List<DayWrapper> dayWrapperList = new ArrayList<>();
localDateTimeList.stream().forEach(localDateTime->{
DayWrapper dayWrapper = new DayWrapper(localDateTime);
dayWrapperList.add(dayWrapper);
dayMap.put(DateTimeFormatterUtil.formatToDateStr(localDateTime), dayWrapper);
});
MonthWrapper monthWrapper = new MonthWrapper(i, dayWrapperList);
monthWrapperList.add(monthWrapper);
}
List<YearWrapper> yearWrapperList = new ArrayList<>();
YearWrapper yearWrapper = new YearWrapper(year, monthWrapperList);
yearWrapperList.add(yearWrapper);
calendarWrapper = new CalendarWrapper(yearWrapperList, dayMap);
return calendarWrapper;
}
}
2.日历应用使用
测试代码：
@Test
public
void
calendarTest(){
//
获取2020年日历
CalendarWrapper calendarWrapper = CalendarUtil.generateCalendar(2020);
//输出年
System.out.println(calendarWrapper.getYears().get(0).getYear());
//输出1月
System.out.println(calendarWrapper.getYears().get(0).getMonths().get(0).getMonth());
//输出1日
System.out.println(calendarWrapper.getYears().get(0).getMonths().get(0).getDays().get(0).getDay());
//输出1日日期格式化
System.out.println(calendarWrapper.getYears().get(0).getMonths().get(0).getDays().get(0).getDateStr());
//输出1日星期
System.out.println(calendarWrapper.getYears().get(0).getMonths().get(0).getDays().get(0).getWeekStr());
//输出1日的数据值
System.out.println(calendarWrapper.getYears().get(0).getMonths().get(0).getDays().get(0).getObj());
//获取指定日期的天，并对当前天设置数据值
DayWrapper dayW = calendarWrapper.getDayMap().get("2020-03-15");
if(dayW != null){
dayW.setObj("hello 2020-03-15!");
}
//获取指定日期的天的数据值
System.out.println(calendarWrapper.getDayMap().get("2020-03-15").getObj());
System.out.println(calendarWrapper.getYears().get(0).getMonths().get(2).getDays().get(14).getObj());
}
输出：
2020 1 1 2020-01-01 星期三 null hello 2020-03-15! hello 2020-03-15!
欢迎提问题和建议！
源代码地址：https://github.com/xkzhangsan/xk-time
原文：https://www.cnblogs.com/xkzhangsanx/p/12535870.html
内容总结
以上是互联网集市为您收集整理的Java日期时间API系列27-----Jdk8中java.time包中的新的日期时间API类，使用xk-time工具类创建日历应用。全部内容，希望文章能够帮你解决Java日期时间API系列27-----Jdk8中java.time包中的新的日期时间API类，使用xk-time工具类创建日历应用。所遇到的程序开发问题。 如果觉得互联网集市技术教程内容还不错，欢迎将互联网集市网站推荐给程序员好友。
内容备注
版权声明：本文内容由互联网用户自发贡献，该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容， 请发送邮件至 gblab@vip.qq.com 举报，一经查实，本站将立刻删除。
内容手机端
扫描二维码推送至手机访问。
来源：【匿名】