java - JSF 2.0 : and default converters

Question

我想为 View 参数使用标准的 JSF 转换器 (javax.faces.convert.DateTimeConverter)

来自文档:

You can refer to the converter by class or by its ID using the component tag's converter attribute. The ID is defined in the application configuration resource file

然后我尝试了:

<f:viewParam
    name        = "rangeStartCreationDate"
    value       = "#{doiListController.model.rangeStartCreationDate}"
    converter   = "javax.faces.convert.DateTimeConverter"
/>

但是我明白了

javax.faces.FacesException: Expression Error: Named Object: javax.faces.convert.DateTimeConverter not found.

然后我尝试了第二个选项(通过 ID)。我在 faces-config.xml

中定义了转换器

<converter> 
    <converter-id>DateTimeConverter</converter-id> 
    <converter-class>javax.faces.convert.DateTimeConverter</converter-class> 
</converter>

并使用了ID

<f:viewParam
    name        = "rangeStartCreationDate"
    value       = "#{doiListController.model.rangeStartCreationDate}"
    converterId = "DateTimeConverter"
/>

在这种情况下我得到

Conversion Error setting value 'Tue Jul 24 00:00:00 CEST 2012' for 'null Converter'.

有没有办法让 JSF 实例化转换器，或者我必须手动实例化它(在某些 bean 中)？

Answer 1

转换器id是javax.faces.DateTime，所以试试

<f:viewParam
  converter="javax.faces.DateTime"
... />