JSF Converter错误消息中的自定义变量 [英] Custom Variables in JSF Converter's Error Message
问题描述
我有一个表单页面，该页面具有一个接受日期的inputText字段.我们有一个转换器，可将文本框中的字符串转换为Date对象(即"2011-03-01"到java.util.Date("2011-03-01"))
I have a form page that has an inputText field that accepts a date. We have a converter that converts the string from the textbox into a Date object (ie. "2011-03-01" to java.util.Date("2011-03-01"") )
如果字符串不是日期，例如"123"，则将显示验证错误消息，例如值(123)必须是日期".
If the string is not a date, like "123" then a validation error message will be displayed like "value (123) must be a date".
当前，在我的.properties文件中，我看到:
Currently, in my .properties file, I see:
javax.faces.converter.DateTimeConverter.DATE =值 ({0})必须是日期
javax.faces.converter.DateTimeConverter.DATE=value ({0}) must be a date
我需要通过确切指定哪个字段必须是日期来使此错误消息更加清晰. (因为表单上可能有多个日期文本字段.)
I need to make this error message more clear by specifying exactly which field must be a date. (As there could be more than one date text fields on the form).
我想将其更改为:
javax.faces.converter.DateTimeConverter.DATE = 值为"{1}"的字段"{0}"必须为 日期
javax.faces.converter.DateTimeConverter.DATE=The field "{0}" with value ({1}) must be a date
但是，我不确定JSF如何自动填充{0}和{1}.如何在JSF Converter错误消息中指定自己的变量?
However, I am unsure how JSF automatically fills in the {0} and {1}. How do I specify my own variables inside the JSF Converter error message?
注意:我已经添加了尝试创建自己的验证器(不要与转换器混淆)，但是JSF框架似乎在其生命周期中进行了验证之前进行了转换.
Note: I have added tried creating my own validator (not to be confused with converter) but it seems that the JSF framework does conversion before validation in its lifecycle.
推荐答案
从JSF 1.2开始，使用converterMessage属性替换整个消息，例如:
Starting from JSF 1.2, use the converterMessage attribute to replace the entire message, such as:
<h:inputText value="#{user.dateOfBirth}" converterMessage="Format must be: yyyy-MM-dd">
<f:convertDateTime pattern="yyyy-MM-dd" />
</h:inputText>
否则，默认情况下，JSF在<h:message>中显示_detail消息.仅当您使用<h:message showDetail="false" showSummary="true">时，才会显示与您的问题类似的那个.我不确定您使用的是哪个JSF版本，但是在我的JSF 2.0.3中，默认详细信息用于f:convertDateTime如下:
Otherwise, JSF by default shows the _detail message in the <h:message>. Only when you use <h:message showDetail="false" showSummary="true"> then the one similar as in your question will be displayed. I'm not sure what JSF version you're using, but in my JSF 2.0.3 the default detail message for f:convertDateTime is the following:
javax.faces.converter.DateTimeConverter.DATE_detail = {2}: ''{0}'' could not be understood as a date. Example: {1}
{2}将替换为客户端ID或输入字段的label属性(如果存在).
The {2} will be substituted with the client ID or the label attribute of the input field when present.
<h:inputText value="#{user.dateOfBirth}" label="Date of birth">
<f:convertDateTime pattern="yyyy-MM-dd" />
</h:inputText>
必须为要使用的DATE_detail消息定义DATE和DATE_detail消息:
Both the DATE and DATE_detail message must be defined for the DATE_detail message to be used:
javax.faces.converter.DateTimeConverter.DATE=Date format must be: dd/mm/yyyy
javax.faces.converter.DateTimeConverter.DATE_detail=Date format must be: dd/mm/yyyy
另请参阅:
See also:
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