我如何正确地重新填充 <sj:datepicker timepicker="true">? [英] How do I correctly repopulate a <sj:datepicker timepicker="true">?

问题描述

我正在使用 Struts2-jQuery Datepicker 和 Timepicker 插件.

I'm using the Struts2-jQuery Datepicker with the Timepicker Addon.

假设从 Action getMyDate() getter 方法返回一个 java.util.Date 对象:

Assuming that a java.util.Date object is returned form an Action getMyDate() getter method:

<sj:datepicker displayFormat="dd/mm/yy" 
            timepickerFormat="HH:mm"
                  timepicker="true" 
                        name="myDate" />

这总是导致日期被正确填充，但 timepicker 总是 00:00.

This always results in the date being populated correctly, but the timepicker is always 00:00.

推荐答案

好的，我已经找到时间扩展我在 12 月 18 日想出并在评论中简要提到的解决方案.

Ok, I've found the time to expand the solution I've figured out on 18 december and briefly mentioned in the comments.

<sj:datepicker timepicker="true"> 标记正确解析 Date 对象，但不能正确解析其 String 表示.这在问题 1057，状态已接受但仍未修复.

The <sj:datepicker timepicker="true"> tag correctly parses a Date object, but not its String representation. This is reported in Issue 1057, with status accepted but still not fixed.

这个有效:

<sj:datepicker displayFormat="dd/mm/yy" 
                  timepicker="true" 
                       value="%{new java.util.Date()}" />

这不起作用:

<sj:datepicker displayFormat="dd/mm/yy" 
                  timepicker="true" 
                       value="%{'07/01/2015 14:42'}" />

当不使用转换器时，您需要将日期时间的格式发送到 String 变量，而不是发送到 Date 变量:

When not using a Converter, you need to send the format of the date-time to a String variable, instead than to a Date one:

<sj:datepicker displayFormat="dd/mm/yy" 
                  timepicker="true" 
                        name="dateStr" />

private String dateStr; 
public void setDateStr(String dateStr){
    this.dateStr = dateStr;
}
public String getDateStr(){
    return dateStr;
}

如果你需要一个日期(你可能需要)，你可以使用 String Getter 和 Setter，它们将处理日期和字符串之间的解析和格式:

If you need a Date (you probably do), you can use a String Getter and Setter, that will handle the parsing and the formatting between Date and String:

private static final String FORMAT = "dd/MM/yyyy HH:mm";

private Date date; 
public void setDateStr(String dateStr){
    date = new SimpleDateFormat(FORMAT,Locale.ITALIAN).parse(dateStr);
}
public String getDateStr(){
    return new SimpleDateFormat(FORMAT,Locale.ITALIAN).format(date);
}

但是由于上面链接的错误，这两种方法都不起作用.解决方案是如此简单，以至于我在对问题的最后评论中笑了:

But both this methods, due to the bug linked above, won't work. The solution is so easy that made me laugh in my last comment to the question:

使用一个 String setter 和一个 Date getter，那么它就会完美地工作:

Use a String setter, and a Date getter, then it will work perfectly:

<sj:datepicker displayFormat="dd/mm/yy" 
                  timepicker="true" 
                        name="dateStr" 
                       value="date" />

private Date date; 
public void setDateStr(String dateStr){
    date = new SimpleDateFormat(FORMAT,Locale.ITALIAN).parse(dateStr);
}
public Date getDate(){
    return date;
}

(或编写转换器).

_{旁注:timepickerFormat=HH:mm"是不需要的，因为HH:mm(24小时格式)已经是默认格式.仅当您想要 12 小时显示格式时才需要更改它.}

_{Side note: timepickerFormat="HH:mm" is not needed because HH:mm (24 hours format) is already the default format. You need to change it only if you want the 12 hours display format.}

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