我在Spring Boot应用程序中使用Thymeleaf时发现了一个问题。
版本：
我的实体：
@Entity
public class MyEntity {
@Id
@GeneratedValue
private Long id;
@Version
private int version;
@DateTimeFormat(pattern="dd/MM/yyyy")
private Calendar calendar;
@DateTimeFormat(pattern="dd/MM/yy")
private Date date;
@NumberFormat(pattern="#0.00000")
private Double aDouble;
}
我的控制器：
@RequestMapping(value = "/{myEntity}/edit-form",
method = RequestMethod.GET, produces = MediaType.TEXT_HTML_VALUE)
public String editForm(@PathVariable MyEntity myEntity, Model model) {
return "myEntity/edit";
}
我的myEntity/dit. html模板：
<form class="form-horizontal" method="POST"
data-th-object="${myEntity}"
data-th-action="@{/myEntity/{id}(id=*{id})}">
<input type="hidden" name="_method" value="PUT" />
<div class="form-group"
data-th-classappend="${#fields.hasErrors('calendar')}? 'has-error has-feedback'">
<label for="calendar" class="col-md-3 control-label">Calendar</label>
<div class="col-md-3">
<input type="text" class="form-control"
data-th-field="*{calendar}"/>
<span data-th-text="*{{calendar}}"></span>
</div>
</div>
<div class="form-group"
data-th-classappend="${#fields.hasErrors('date')}? 'has-error has-feedback'">
<label for="date" class="col-md-3 control-label">Date</label>
<div class="col-md-3">
<input type="text" class="form-control"
data-th-field="*{date}"/>
<span data-th-text="*{{date}}"></span>
</div>
</div>
<div class="form-group"
data-th-classappend="${#fields.hasErrors('aDouble')}? 'has-error has-feedback'">
<label for="date" class="col-md-3 control-label">aDouble</label>
<div class="col-md-3">
<input type="text" class="form-control"
data-th-field="*{{aDouble}}"/>
<span data-th-text="*{{aDouble}}"></span>
</div>
</div>
<div class="form-group">
<div class="col-md-12">
<div class="pull-right">
<button type="submit" class="btn btn-primary">Update</button>
</div>
</div>
</div>
</form>
当我尝试显示此页面时，我得到：
<body>
<form class="form-horizontal" method="POST" action="/myEntity/1">
<input type="hidden" name="_method" value="PUT" />
<div class="form-group">
<label for="calendar" class="col-md-3 control-label">Calendar</label>
<div class="col-md-3">
<input type="text" class="form-control" id="calendar" name="calendar"
value="java.util.GregorianCalendar[time=1451602800000,areFieldsSet=true,areAllFieldsSet=true,lenient=true,zone=sun.util.calendar.ZoneInfo[id="Europe/Madrid",offset=3600000,dstSavings=3600000,useDaylight=true,transitions=165,lastRule=java.util.SimpleTimeZone[id=Europe/Madrid,offset=3600000,dstSavings=3600000,useDaylight=true,startYear=0,startMode=2,startMonth=2,startDay=-1,startDayOfWeek=1,startTime=3600000,startTimeMode=2,endMode=2,endMonth=9,endDay=-1,endDayOfWeek=1,endTime=3600000,endTimeMode=2]],firstDayOfWeek=2,minimalDaysInFirstWeek=4,ERA=1,YEAR=2016,MONTH=0,WEEK_OF_YEAR=53,WEEK_OF_MONTH=0,DAY_OF_MONTH=1,DAY_OF_YEAR=1,DAY_OF_WEEK=6,DAY_OF_WEEK_IN_MONTH=1,AM_PM=0,HOUR=0,HOUR_OF_DAY=0,MINUTE=0,SECOND=0,MILLISECOND=0,ZONE_OFFSET=3600000,DST_OFFSET=0]" />
<span>01/01/2016</span>
</div>
</div>
<div class="form-group">
<label for="date" class="col-md-3 control-label">Date</label>
<div class="col-md-3">
<input type="text" class="form-control" id="date" name="date"
value="2016-02-01 00:00:00.0" />
<span>01/02/16</span>
</div>
</div>
<div class="form-group">
<label for="date" class="col-md-3 control-label">aDouble</label>
<div class="col-md-3">
<input type="text" class="form-control" id="aDouble" name="aDouble"
value="0.1" />
<span>0.10000</span>
</div>
</div>
<div class="form-group">
<div class="col-md-12">
<div class="pull-right">
<button type="submit" class="btn btn-primary">Update</button>
</div>
</div>
</div>
</form>
</body>如您所见，对所有值使用toString（）方法对所有字段的值进行格式化并不符合预期（参见span，它通过th-text属性使用相同的值）。
有人能帮我吗？提前谢谢。
编辑1：我已经创建了一个关于它的新问题
已解决。问题出在request estMaps定义中：
@RequestMapping(value = "/{myEntity}/edit-form", method = RequestMethod.GET,
produces = MediaType.TEXT_HTML_VALUE)
public String editForm(@PathVariable MyEntity myEntity, Model model) {
}
它需要请求上下文中的BindingResult来获取属性编辑器，它可以将对象值转换为String。因此，在请求映射定义中包含BindingResult都按预期工作：
@RequestMapping(value = "/{myEntity}/edit-form", method = RequestMethod.GET,
produces = MediaType.TEXT_HTML_VALUE)
public String editForm(@ModelAttribute MyEntity myEntity, BindingResult result,
Model model) {
}
请注意，对象必须使用@Model属性进行注释，并且BindingResult必须在@Model属性之后声明。
感谢所有试图帮助我的人。
对于我要使用的日期：
${#dates.format(date, 'dd/MMM/yyyy HH:mm')}
和数字：
${#numbers.formatDecimal(num,3,2,'COMMA')}
在留档中，它被解释为数字和日期。
