显示带有时区的 freemarker 格式化时间

Question

我需要显示两个不同时区的时间。

以下有效，但芝加哥时间的格式很难看：

<p><b>Report performed (Belfast): </b> ${.now?string["EEEE, MMMM dd, yyyy, hh:mm a '('zzz')'"]}</p>
<p><b>Report performed (Chicago): </b> ${.now?iso('America/Chicago')}</p>

结果：

Report performed (UTC): Apr 23, 2019 12:08:27 PM
Report performed (Chicago): 2019-04-23T06:08:27-05:00

尝试连接导致错误：

<p><b>Report performed (Chicago): </b> ${.now?iso('America/Chicago')?string["EEEE, MMMM dd, yyyy, hh:mm a '('zzz')'"]}</p>

12:30:18.307 [main] ERROR freemarker.runtime - Error executing FreeMarker template

freemarker.core.NonHashException：对于“...[...]”左侧操作数：需要一个散列，但已计算为字符串（包装器：f.t.SimpleScalar）： ==> .now?iso('America/Chicago')?string [在模板 "emailTemplate.ftl" 第 80 行，第 54 列]

FTL 堆栈跟踪（“~”表示与嵌套相关）：

- 失败于：${.now?iso("America/Chicago")?string[... [模板 "emailTemplate.ftl" 第 80 行第 52 列]

at freemarker.core.DynamicKeyName.dealWithStringKey(DynamicKeyName.java:142) ~[freemarker-2.3.25-incubating.jar:2.3.25]
at freemarker.core.DynamicKeyName._eval(DynamicKeyName.java:75) ~[freemarker-2.3.25-incubating.jar:2.3.25]
at freemarker.core.Expression.eval(Expression.java:81) ~[freemarker-2.3.25-incubating.jar:2.3.25]
at freemarker.core.DollarVariable.calculateInterpolatedStringOrMarkup(DollarVariable.java:96) ~[freemarker-2.3.25-incubating.jar:2.3.25]
at freemarker.core.DollarVariable.accept(DollarVariable.java:59) ~[freemarker-2.3.25-incubating.jar:2.3.25]
at freemarker.core.Environment.visit(Environment.java:327) [freemarker-2.3.25-incubating.jar:2.3.25]
at freemarker.core.Environment.visit(Environment.java:333) [freemarker-2.3.25-incubating.jar:2.3.25]
at freemarker.core.Environment.process(Environment.java:306) [freemarker-2.3.25-incubating.jar:2.3.25]
at freemarker.template.Template.process(Template.java:386) [freemarker-2.3.25-incubating.jar:2.3.25]
at mycode...

Answer 1

我相信你不能一蹴而就，因为 .iso 或任何日期格式都会 return string 。默认情况下，您可以在 ftl 中指定 time_zone 并执行日期格式。

<#setting time_zone="America/Chicago">
<#assign aDateTime = .now>
${aDateTime?string["EEEE, MMMM dd, yyyy, hh:mm a '('zzz')'"]}

它给出输出 Tuesday, April 23, 2019, 07:35 AM (CDT)

更多参考请看这个Document

显示带有时区的 freemarker 格式化时间

Display freemarker formatted time with a time zone

javascript

freemarker

date

- 失败于：${.now?iso("America/Chicago")?string[... [模板 "emailTemplate.ftl" 第 80 行第 52 列]