在JBOSS服务器上使用Myfaces的JSF实现
JBOSS AS服务器默认使用的JSF实现是SUN的RI，要把他替换成Myfaces需要：

1.移除JBoss的现有的JSF实现RI
修改JBOSS_HOME下的server\<config-name>\deploy\jboss-web.deployer\conf\web.xml文件，把JSF的监听器注掉，并删除jboss-web.deployer 目录下的jsf-libs文件夹

<!-- Comment/Remove this -->
<!-- Configures JSF for a web application if the javax.faces.webapp.FacesServlet is declared -->
<!-- in web.xml. -->
<!--
<listener>
<listener-class>org.jboss.web.jsf.integration.config.JBossJSFConfigureListener</listener-class>
</listener>
-->
<!-- Comment/Remove this -->
<!-- Listens to all web app lifecycle events so that @PreDestroy can be called on -->
<!-- JSF managed beans that go out of scope. You can comment this out if you -->
<!-- don't use JSF or you don't use annotations on your managed beans. -->
<!--
<listener>
<listener-class>com.sun.faces.application.WebappLifecycleListener</listener-class>
</listener>
-->

2.安装Myfaces的JSF实现

在jboss-web.deployer 目录下新建myfaces-libs文件夹，并把myfaces的实现jar包拷贝到里面

commons-beanutils.jar
commons-digester-1.6.jar
commons-el.jar
commons-lang-2.1.jar
myfaces-api.jar
myfaces-impl.jar

在jboss-web.deployer\conf\web.xml中添加myfaces的监听器

<listener>
<listener-class>org.apache.myfaces.webapp.StartupServletContextListener</listener-class>
</listener>

3.修改jboss-web.deployer\conf\web.xml中JSF相关的init-param参数，替换
<init-param>
<description>JSF standard tlds</description>
<param-name>tagLibJar0</param-name>
<param-value>jsf-libs/jsf-impl.jar</param-value>
</init-param>
<init-param>
<description>JSTL standard tlds</description>
<param-name>tagLibJar1</param-name>
<param-value>jstl.jar</param-value>
</init-param>

为

<init-param>
<description>MyFaces tlds</description>
<param-name>tagLibJar0</param-name>
<param-value>myfaces-libs/myfaces-impl.jar</param-value>
</init-param>

现在启动JBOSS AS就可以看到加载的已经加载了Myfaces的JSF。