3
我的问题是，当我运行一个非常简单的JSF应用程序时，EL标签没有得到渲染。EL标签没有呈现
例如，下面的代码：
<html lang="en" xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html">
<h:head>
<title>Facelets Hello World</title>
</h:head>
<h:body> #{hello.world} </h:body>
</html>
显示为#{hello.word}在浏览器中，而不是 “世界，你好！”如应该由我管理的bean返回：
@ManagedBean(name = "hello")
public class Hello {
public String getWorld() {
return "Hello World!";
}
}
我已经看到了这个问题JSF 2.0 EL tags don't render in browser了，但它并没有帮助我。而且，根据我读到的内容，Tomcat 7声称提供了API和EL 2.2标准的实现。
我使用以下软件/版本：
- Eclipse的靛蓝3.7.2的Java EE版
- Eclipse插件：M2E 1.0.2
- Eclipse插件：M2E-WTP 0.15.2
- Maven 2的
- 的Tomcat 7（曾尝试以下的版本）
- 的Tomcat 7.0 0.10
- 的Tomcat 7.0.26
- 的Tomcat 7.0.27
- MyFaces的2.1.6
- 的Oracle JDK 1.7.0
如果需要更多信息，我会很乐意提供它。
[EDIT1]
我甚至不知道这是必要的/是正确的，但增加了以下内容web.xml没有解决的问题：
<context-param>
<param-name>org.apache.myfaces.EXPRESSION_FACTORY</param-name>
<param-value>org.apache.el.ExpressionFactoryImpl</param-value>
</context-param>
[EDIT2]
的web.xml：
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0">
<display-name>jsf-facelets</display-name>
<context-param>
<param-name>javax.faces.PROJECT_STAGE</param-name>
<param-value>Development</param-value>
</context-param>
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.html</url-pattern>
</servlet-mapping>
<context-param>
<param-name>javax.faces.DEFAULT_SUFFIX</param-name>
<param-value>.xhtml</param-value>
</context-param>
<context-param>
<param-name>org.apache.myfaces.EXPRESSION_FACTORY</param-name>
<param-value>org.apache.el.ExpressionFactoryImpl</param-value>
</context-param>
<context-param>
<param-name>javax.faces.STATE_SAVING_METHOD</param-name>
<param-value>client</param-value>
</context-param>
<context-param>
<param-name>javax.faces.INTERPRET_EMPTY_STRING_SUBMITTED_VALUES_AS_NULL</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>org.apache.myfaces.NUMBER_OF_VIEWS_IN_SESSION</param-name>
<param-value>20</param-value>
</context-param>
<context-param>
<param-name>org.apache.myfaces.SERIALIZE_STATE_IN_SESSION</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>org.apache.myfaces.COMPRESS_STATE_IN_SESSION</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>org.apache.myfaces.COMPRESS_STATE_IN_CLIENT</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>org.apache.myfaces.ALLOW_JAVASCRIPT</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>org.apache.myfaces.PRETTY_HTML</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>org.apache.myfaces.DETECT_JAVASCRIPT</param-name>
<param-value>false</param-value>
</context-param>
<context-param>
<param-name>org.apache.myfaces.AUTO_SCROLL</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>org.apache.myfaces.SECRET</param-name>
<param-value>NzY1NDMyMTA=</param-value>
</context-param>
<listener>
<listener-class>org.apache.myfaces.webapp.StartupServletContextListener</listener-class>
</listener>
<session-config>
<session-timeout>30</session-timeout>
</session-config>
</web-app>
我想您尝试访问你的页面作为的mypage.html的？对？尝试检查它是否适合你mypage.jsf，并更改面临的Servlet *。html的到\t \t \t < servlet-name> Faces Servlet \t \t *。JSF \t也如果JSF2项目可以删除<的context-param> javax.faces.DEFAULT_SUFFIX .xhtml –
Daniel
2012-04-29 10:11:49
我只是尝试以mypage.html而不是mypage.xhtml的身份访问它，它的工作原理是 – 2012-04-29 10:15:02
奇怪的是，我确信我在很多次之前尝试了这个，但是......谁知道。现在它工作...谢谢你的提示，尝试更改扩展 – 2012-04-29 10:16:22