前言

• thymeleaf 3.0
• spring boot 2.0.0RELEASE

無國際化：格式化日期

<p>Today is: <span th:text="${#calendars.format(today,'yyyy-MM-dd')}">2019-08-01</span> </p>

國際化：格式化日期

spring boot國際化：https://www.cnblogs.com/GoodHelper/p/6824492.html
Thymeleaf國際化：https://www.thymeleaf.org/doc/tutorials/3.0/usingthymeleaf.html#a-multi-language-welcome

安裝Thymeleaf國際化方法，需要在Thymeleaf模板所在目錄創(chuàng)建同名的properties文件。模板名為home.html，同名的properties文件為home_zh.properties（中文）、home_en.properties（英文）。

home_zh.properties:

date.format=yyyy年MM月dd日

home_en.properties:

date.format=MMMM dd'','' yyyy

準備好同名的properties文件后，在Thymeleaf中格式化日期:

<p th:with="df=#{date.format}">Today is: <span th:text="${#calendars.format(today,df)}">2019-08-01</span> </p>

或

<p>Today is: <span th:with="df=#{date.format}" th:text="${#calendars.format(today,df)}">2019-08-01</span> </p>

th:field 陷阱

<div class="form-group"> <label class="col-sm-3 control-label">釘釘提報時間：</label><div class="col-sm-8"><input name="dingTime" th:field="*{#calendars.format(dingTime,'yyyy-MM-dd')}" class="form-control" type="text" readonly="readonly" ></div> </div>

• th:field 這樣寫發(fā)生錯誤。將th:field 改為 th:value后正常。

Thymeleaf中的calendars對象

• #calendars : analogous to #dates, but for java.util.Calendar objects:

/** ======================================================================* See javadoc API for class org.thymeleaf.expression.Calendars* ======================================================================*//** Format calendar with the standard locale format* Also works with arrays, lists or sets*/ ${#calendars.format(cal)} ${#calendars.arrayFormat(calArray)} ${#calendars.listFormat(calList)} ${#calendars.setFormat(calSet)}/** Format calendar with the ISO8601 format* Also works with arrays, lists or sets*/ ${#calendars.formatISO(cal)} ${#calendars.arrayFormatISO(calArray)} ${#calendars.listFormatISO(calList)} ${#calendars.setFormatISO(calSet)}/** Format calendar with the specified pattern* Also works with arrays, lists or sets*/ ${#calendars.format(cal, 'dd/MMM/yyyy HH:mm')} ${#calendars.arrayFormat(calArray, 'dd/MMM/yyyy HH:mm')} ${#calendars.listFormat(calList, 'dd/MMM/yyyy HH:mm')} ${#calendars.setFormat(calSet, 'dd/MMM/yyyy HH:mm')}/** Obtain calendar properties* Also works with arrays, lists or sets*/ ${#calendars.day(date)} // also arrayDay(...), listDay(...), etc. ${#calendars.month(date)} // also arrayMonth(...), listMonth(...), etc. ${#calendars.monthName(date)} // also arrayMonthName(...), listMonthName(...), etc. ${#calendars.monthNameShort(date)} // also arrayMonthNameShort(...), listMonthNameShort(...), etc. ${#calendars.year(date)} // also arrayYear(...), listYear(...), etc. ${#calendars.dayOfWeek(date)} // also arrayDayOfWeek(...), listDayOfWeek(...), etc. ${#calendars.dayOfWeekName(date)} // also arrayDayOfWeekName(...), listDayOfWeekName(...), etc. ${#calendars.dayOfWeekNameShort(date)} // also arrayDayOfWeekNameShort(...), listDayOfWeekNameShort(...), etc. ${#calendars.hour(date)} // also arrayHour(...), listHour(...), etc. ${#calendars.minute(date)} // also arrayMinute(...), listMinute(...), etc. ${#calendars.second(date)} // also arraySecond(...), listSecond(...), etc. ${#calendars.millisecond(date)} // also arrayMillisecond(...), listMillisecond(...), etc./** Create calendar (java.util.Calendar) objects from its components*/ ${#calendars.create(year,month,day)} ${#calendars.create(year,month,day,hour,minute)} ${#calendars.create(year,month,day,hour,minute,second)} ${#calendars.create(year,month,day,hour,minute,second,millisecond)}${#calendars.createForTimeZone(year,month,day,timeZone)} ${#calendars.createForTimeZone(year,month,day,hour,minute,timeZone)} ${#calendars.createForTimeZone(year,month,day,hour,minute,second,timeZone)} ${#calendars.createForTimeZone(year,month,day,hour,minute,second,millisecond,timeZone)}/** Create a calendar (java.util.Calendar) object for the current date and time*/ ${#calendars.createNow()}${#calendars.createNowForTimeZone()}/** Create a calendar (java.util.Calendar) object for the current date (time set to 00:00)*/ ${#calendars.createToday()}${#calendars.createTodayForTimeZone()}

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