为什么我的jsf标签不起作用? [英] why don't my jsf tags work?

问题描述

在Eclipse JUNO中，我开始:

1. 新的动态Web项目
2. 名称:JSFTest；配置:JavaServer Faces v2.0项目
3. JSF Capabilites:

4. 将jar复制到WEB-INF/lib(jstl-api，jstl-impl，jsf-api，jsf-impl):

5. 新的HTML到WebContent:带有"New Facelet合成页面"的index.xhtml，以及其中的代码:

6. 在web.xml中，我将index.xhtml写入欢迎部分

7. 当我在apache tomcat 7服务器上运行它时，结果(不必理会h1标题):

那么为什么不显示出文本和按钮呢?我怎么了我在youtube上看到了很多视频，我一直关注着他们，在视频中起作用了，但对我来说却是这样.

解决方案

因为您必须按照web.xml文件中的说明，访问/faces/虚拟文件夹下的index.xhtml页面进行FacesServlet url映射.

使JSF页面正常工作的一种简单方法是更改​​web.xml

中的url映射.

发件人:

 <servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>/faces/*</url-pattern>
</servlet-mapping>
 

收件人

 <servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>*.xhtml</url-pattern>
</servlet-mapping>
 

如果您不想更改此设置，则必须将welcome-file更改为/faces/index.xhtml.

IMO最好是第一个选择，这样，FacesServlet将仅处理xhtml页，使用/faces/*将使其处理任何其他资源，如图像，CSS和JS文件.

In Eclipse JUNO, I started:

1. new Dynamic Web Project
2. Name: JSFTest; Configuration: JavaServer Faces v2.0 Project
3. JSF Capabilites:

4. Copy jars to WEB-INF/lib (jstl-api, jstl-impl, jsf-api, jsf-impl):

5. new HTML to WebContent: index.xhtml with "New Facelet Composition Page", and the code inside:

6. in web.xml, I write the index.xhtml into the welcome part

7. when I run it on my apache tomcat 7 server, the result (don't bother about the h1 title):

So why doesn't it show the outtext and the button? What did I wrong? I saw a lot of video on youtube, I followed them, in the video it worked, but at me.

解决方案

Because you have to access to the index.xhtml page under /faces/ virtual folder as stated in your web.xml file for the FacesServlet url mapping.

A simple way to make your JSF page to work is to change the url mapping in your web.xml

From:

<servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>/faces/*</url-pattern>
</servlet-mapping>

To

<servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>*.xhtml</url-pattern>
</servlet-mapping>

If you don't want to change this, you must change your welcome-file to /faces/index.xhtml.

IMO it will be better the first option, in this way the FacesServlet will only process the xhtml pages, using the /faces/* will make it process any other resource as images, CSS and JS files.

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