尝试部署我的WAR文件时，tomcat会给我以下错误日志：
2011-jan-24 13:16:04 org.apache.catalina.core.ApplicationContext log
INFO: ContextListener: contextInitialized()
2011-jan-24 13:16:04 org.apache.catalina.core.ApplicationContext log
INFO: SessionListener: contextInitialized()
2011-jan-24 13:19:09 org.apache.catalina.core.ApplicationContext log
INFO: SessionListener: contextDestroyed()
2011-jan-24 13:19:09 org.apache.catalina.core.ApplicationContext log
INFO: ContextListener: contextDestroyed()
2011-jan-24 13:19:14 org.apache.catalina.core.ApplicationContext log
INFO: ContextListener: contextInitialized()
2011-jan-24 13:19:14 org.apache.catalina.core.ApplicationContext log
INFO: SessionListener: contextInitialized()
2011-jan-24 13:21:14 org.apache.catalina.core.StandardContext listenerStart
ALLVARLIG: Error configuring application listener of class com.sun.faces.config.ConfigureListener
java.lang.ClassNotFoundException: com.sun.faces.config.ConfigureListener
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1643)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1488)
at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:415)
at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:397)
at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:118)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4458)
at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5004)
at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:4999)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
2011-jan-24 13:21:14 org.apache.catalina.core.StandardContext listenerStart
ALLVARLIG: Skipped installing application listeners due to previous error(s)
2011-jan-24 13:24:22 org.apache.catalina.core.ApplicationContext log
INFO: SessionListener: contextDestroyed()
2011-jan-24 13:24:22 org.apache.catalina.core.ApplicationContext log
INFO: ContextListener: contextDestroyed()
这是我的web.xml：
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" >
<servlet>
<servlet-name>HSR-backend</servlet-name>
<servlet-class>org.springframework.web.servlet.DispacherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>HSR-backend</servlet-name>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>
index.jsp
</welcome-file>
</welcome-file-list>
</web-app>
我该如何解决这个问题？