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我是 JSF 的新手，我正在制作一个简单的 jsf 应用程序。当我尝试使用 Tomcat 运行应用程序时出现 404 错误，我不知道为什么。我尝试从 Eclipse 而不是从 Eclipse 运行应用程序，但都不起作用。我尝试了多个不同的 url（都区分大小写），包括 localhost:8080/testing/faces/index.jsp、localhost:8080/testing/index.jsp 和 localhost:8080/testing/，但它们都不起作用。据我所知，我的文件都在正确的位置（我的 jsp 文件在 WebContent 下，我的 web.xml 和我的 faces-config 在 WEB-INF 中）。有谁知道我的代码有什么问题？我在下面粘贴了我的 web.xml 和 faces-config。

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>testing</display-name>
  <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>/faces/*</url-pattern>
  </servlet-mapping>
  <context-param>
    <param-name>javax.servlet.jsp.jstl.fmt.localizationContext</param-name>
    <param-value>resources.application</param-value>
  </context-param>
  <context-param>
    <description>State saving method: 'client' or 'server' (=default). See JSF
                 Specification 2.5.2</description>
    <param-name>javax.faces.STATE_SAVING_METHOD</param-name>
    <param-value>client</param-value>
  </context-param>
  <context-param>
    <description>
This parameter tells MyFaces if javascript code should be allowed in
the rendered HTML output.
If javascript is allowed, command_link anchors will have javascript code
that submits the corresponding form.
If javascript is not allowed, the state saving info and nested parameters
will be added as url parameters.
Default is 'true'</description>
  <param-name>org.apache.myfaces.ALLOW_JAVASCRIPT</param-name>
  <param-value>true</param-value>
</context-param>
<context-param>
  <description>
    If true, rendered HTML code will be formatted, so that it is 'human-readable'
        i.e. additional line separators and whitespace will be written, that do not
        influence the HTML code.
        Default is 'true'
  </description>
  <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>
  <description>
If true, a javascript function will be rendered that is able to restore the
former vertical scroll on every request. Convenient feature if you have pages
with long lists and you do not want the browser page to always jump to the top
if you trigger a link or button action that stays on the same page.
Default is 'false'

  </description>
  <param-name>org.apache.myfaces.AUTO_SCROLL</param-name>
  <param-value>true</param-value>
</context-param>
<context-param>
  <param-name>javax.faces.PROJECT_STAGE</param-name>
  <param-value>Development</param-value>
</context-param>

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

<welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  <welcome-file>faces/index.jsp</welcome-file>
  <welcome-file>/index.jsp</welcome-file>
</welcome-file-list>

</web-app>

面孔-config.xml

<?xml version="1.0" encoding="UTF-8"?>

<faces-config
    xmlns="http://java.sun.com/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee     
http://java.sun.com/xml/ns/javaee/web-facesconfig_2_1.xsd"
    version="2.1">
     <managed-bean>
    <managed-bean-name>results</managed-bean-name>
    <managed-bean-class>testing.model.Results</managed-bean-class>
    <managed-bean-scope>session</managed-bean-scope>
</managed-bean>
<managed-bean>
    <managed-bean-name>tuple</managed-bean-name>
    <managed-bean-class>testing.model.Tuple</managed-bean-class>
    <managed-bean-scope>session</managed-bean-scope>
</managed-bean>
<navigation-rule>
    <display-name>WEB-INF/index</display-name>
    <from-view-id>/WEB-INF/index.jsp</from-view-id>
    <navigation-case>
        <from-outcome>true</from-outcome>
        <to-view-id>/WEB-INF/newValsIndex.jsp</to-view-id>
    </navigation-case>
</navigation-rule>
<navigation-rule>
    <display-name>WEB-INF/index</display-name>
    <from-view-id>/WEB-INF/index.jsp</from-view-id>
    <navigation-case>
        <from-outcome>false</from-outcome>
        <to-view-id>/WEB-INF/failedLogin.jsp</to-view-id>
    </navigation-case>
</navigation-rule>

</faces-config>

非常感谢！

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