自定义升降标签不起作用
Lift 中的以下类型的标签似乎对我不起作用：
<lift:snippet type="MyClass:render" />
<lift:MyClass.render/>
<lift:MyClass/>
使用这些标签会导致找不到类错误。如果我尝试使用它来调用一个类，
<div class=lift:myclass.mymethod />
它就可以工作。或者如果我使用跨度标签来调用它。例如，Pollak 的 Simply Lift 中的 Hello World 示例就适合我，它使用以下代码成功显示了 Howdy 方法：
<span class="lift:helloWorld.howdy">
Welcome to your Lift app at <span id="time">Time goes here</span>
</span>
目前，我的问题来自于尝试实现 Exploring Lift >（又名 The Lift Book）第 13.1 章中的 OpenID 示例。我已经使用 sbt 以及 lift-openid 库下载了 OpenID4Java。该示例可以在 http://exploring.liftweb.net/master/index-13 找到.html。我已经实现了对 Boot 类的更改，并创建了 OpenID 类和 SimpleOpenIDVendor 类。但是创建包含以下内容的 html 文件
<lift:OpenID.form>
<openId:renderForm/>
</lift:OpenID.form>
会导致浏览器中显示以下错误：
Error processing snippet: openid.form
Reason: Class Not Found
XML causing this error:
<lift:openid.form xmlns="http://www.w3.org/1999/xhtml">
<openid:renderform>
</openid:renderform></lift:openid.form>
类 OpenID 被放置在以包代码开头的包中，Lift 正在隐式找到该包。它包含在 Boot.scala 文件中，并带有“
LiftRules.addToPackages("code")
So, I am a损失”行。有什么想法吗？
请注意，其他提升标签（例如 lift:bind-at 和 lift:surround 等）可以正常工作。
The following types of tags in Lift do not seem to work for me:
<lift:snippet type="MyClass:render" />
<lift:MyClass.render/>
<lift:MyClass/>
Using these tags results in a Class Not Found error. If I attempt to call a class using
<div class=lift:myclass.mymethod />
it can work. Or if I call it using span tags. For instance, the Hello World example in Pollak's Simply Lift works for me, successfully displaying the Howdy method with the following code:
<span class="lift:helloWorld.howdy">
Welcome to your Lift app at <span id="time">Time goes here</span>
</span>
Currently, my problem is coming from attempting to implement Exploring Lift's (aka The Lift Book) OpenID example in Chapter 13.1. I have downloaded OpenID4Java using sbt as well as the lift-openid library. That example can be found at http://exploring.liftweb.net/master/index-13.html. I have implemented the change to the Boot class, and created the OpenID class and the SimpleOpenIDVendor class. But creating an html file containing
<lift:OpenID.form>
<openId:renderForm/>
</lift:OpenID.form>
causes the following error to be displayed in the browser:
Error processing snippet: openid.form
Reason: Class Not Found
XML causing this error:
<lift:openid.form xmlns="http://www.w3.org/1999/xhtml">
<openid:renderform>
</openid:renderform></lift:openid.form>
The class OpenID was placed in a package that starts with the package code, which is being implicitly found by Lift. It is included in the Boot.scala file with the line
LiftRules.addToPackages("code")
So, I am at a loss. Any ideas?
Note that other lift tags such as lift:bind-at and lift:surround and the like work fine.
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评论（1）
正如戴夫在我原来的评论下发表的那样，问题出在 HTML5 解析器上。 Lift 区分大小写，无法找到大小写不同的类。由于 HTML5 解析器自动将标签变为小写，因此您不能再使用自定义提升标签。相反，您必须使用类似
Note that you CANNOT 的
内容，因为 HTML5 显然不支持此类标签。
因此，我的 OpenID4Java 问题通过使用解决：
为什么我不需要使用 openid.form 仍然不确定。可能我的实现稍有偏差，但我确认，如果我放入 openid 链接，它将带我进入 openid 登录页面，所以它确实可以正常工作。
来源：
As dave posted under my original comment, the problem was the HTML5 parser. Lift is case-sensitive, and cannot find a class with varying case. Since the HTML5 parser automatically makes tags lowercase, you can't use custom lift tags anymore. Instead, you have to use something like
Note that you CANNOT have
as HTML5 apparently does not support such tags.
My OpenID4Java problem is therefore resolved by using:
Why I don't need to use openid.form still is uncertain. It could be possible I'm implementing it slightly off, but I confirmed that it will take me to an openid login page if I put in the openid link, so it is indeed functional.
Sources: