Question

好的，我没有想法。我正在尝试使用Facelets在Glassfish 4上运行Trinidad 2.1.0，但我首先得到这个例外：

WARNING:   Could not load ViewHandler javax.faces.application.ViewHandler
WARNING:   java.lang.InstantiationException
    at sun.reflect.InstantiationExceptionConstructorAccessorImpl.newInstance(InstantiationExceptionConstructorAccessorImpl.java:48)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    at java.lang.Class.newInstance(Class.java:374)
    at org.apache.myfaces.trinidadinternal.application.ViewHandlerImpl._initIfNeeded(ViewHandlerImpl.java:311)
    at org.apache.myfaces.trinidadinternal.application.ViewHandlerImpl.createView(ViewHandlerImpl.java:83)

其次是：

SEVERE:   Error when processing tag for component with id: "". The scoped id of the parent component is ":j_id_id5".
java.lang.NullPointerException
    at org.jboss.weld.el.ELCreationalContextStack.getCreationalContextStore(ELCreationalContextStack.java:33)
    at org.jboss.weld.el.WeldValueExpression.getValue(WeldValueExpression.java:47)
    at org.apache.myfaces.trinidad.webapp.UIXComponentELTag.setProperty(UIXComponentELTag.java:297)
    at org.apache.myfaces.trinidadinternal.taglib.html.HtmlScriptTag.setProperties(HtmlScriptTag.java:81)
    at org.apache.myfaces.trinidad.webapp.UIXComponentELTag.setProperties(UIXComponentELTag.java:284)

我目前正在使用com.sun.faces, jsf-impl, 2.2.4。我也试过了org.apache.myfaces.core, myfaces-impl, 2.1.13，但这给了我或多或少相同的错误。

我在<class-loader delegate="true" />中设置了glassfish-web.xml。我在切换JSF实现时看到了错误的差异，所以我确定我没有使用与Glassfish捆绑的JSF实现。

将web.xml中的视图处理程序切换为org.apache.myfaces.trinidadinternal.facelets.TrinidadFaceletViewHandler也无效。

我已将我的文件删除至：

<ui:composition xmlns="http://www.w3.org/1999/xhtml"
                xmlns:ui="http://java.sun.com/jsf/facelets"
                xmlns:f="http://java.sun.com/jsf/core"
                xmlns:tr="http://myfaces.apache.org/trinidad"
>
  <f:view>
    <tr:document>
      <tr:outputText value="Hello"/>
    </tr:document>
  </f:view>
</ui:composition>

但我仍然得到上述错误。

我开始使用Trinidad 1.2.14使用JSF 1.2和Facelets 1.1.14开发一个项目，该项目在同一个Glashfish服务器上运行。我已经按照本文中JSF migration的步骤来迁移JSF和Facelets 因此，删除了我的Facelets 1.1.14依赖项，我更新了Trinidad和JSF依赖项并更新了web.xml和faces-config.xml。

有谁知道我还能检查什么？

更新

我排除了Glassfish。我创建了一个新的空白项目，配置了Trinidad 2并尝试在Tomcat 7上运行它并获得相同的异常。

在我的新项目中，我使用了以下配置：

依赖关系

<dependency>
  <groupId>com.sun.faces</groupId>
  <artifactId>jsf-api</artifactId>
  <version>2.2.4</version>
</dependency>
<dependency>
  <groupId>com.sun.faces</groupId>
  <artifactId>jsf-impl</artifactId>
  <version>2.2.4</version>
</dependency>
<dependency>
  <groupId>org.apache.myfaces.trinidad</groupId>
  <artifactId>trinidad-api</artifactId>
  <version>2.1.0</version>
</dependency>
<dependency>
  <groupId>org.apache.myfaces.trinidad</groupId>
  <artifactId>trinidad-impl</artifactId>
  <version>2.1.0</version>
</dependency>

`web.xml`

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.1"
         xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd">
  <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>/faces/*</url-pattern>
  </servlet-mapping>

  <!-- Trinidad -->

  <filter>
    <filter-name>trinidad</filter-name>
    <filter-class>org.apache.myfaces.trinidad.webapp.TrinidadFilter</filter-class>
  </filter>

  <filter-mapping>
    <filter-name>trinidad</filter-name>
    <servlet-name>Faces Servlet</servlet-name>
  </filter-mapping>

  <servlet>
    <servlet-name>resources</servlet-name>
    <servlet-class>org.apache.myfaces.trinidad.webapp.ResourceServlet</servlet-class>
  </servlet>

  <!-- This cannot be configured currently -->
  <servlet-mapping>
    <servlet-name>resources</servlet-name>
    <url-pattern>/adf/*</url-pattern>
  </servlet-mapping>

  <context-param>
    <param-name>javax.faces.STATE_SAVING_METHOD</param-name>
    <param-value>client</param-value>
  </context-param>

  <context-param>
    <param-name>org.apache.myfaces.trinidad.ALTERNATE_VIEW_HANDLER</param-name>
    <!-- TrinidadFaceletViewHander must be the alternate view handler if SessionChangeManager is used -->
    <param-value>javax.faces.application.ViewHandler</param-value>
  </context-param>

  <context-param>
    <!--Unfortunately, Facelets provides no hook for plugging the PageResolver into the logic
      handling "facelets.VIEW_MAPPINGS". You should leave "facelets.VIEW_MAPPINGS"
      unset and use "org.apache.myfaces.trinidad.FACELETS_VIEW_MAPPINGS" instead.-->
    <param-name>org.apache.myfaces.trinidad.FACELETS_VIEW_MAPPINGS</param-name>
    <param-value>*.xhtml</param-value>
  </context-param>

  <!-- / Trinidad -->

  <session-config>
    <session-timeout>
      30
    </session-timeout>
  </session-config>
  <welcome-file-list>
    <welcome-file>faces/index.xhtml</welcome-file>
  </welcome-file-list>
</web-app>

`faces-config.xml`

<?xml version='1.0' encoding='UTF-8'?>
<faces-config version="2.2"
              xmlns="http://xmlns.jcp.org/xml/ns/javaee"
              xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
              xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-facesconfig_2_2.xsd">

  <application>
    <default-render-kit-id>org.apache.myfaces.trinidad.core</default-render-kit-id>
  </application>

</faces-config>

Answer 1

Error when processing tag for component with id很容易解决。我认为有人甚至使用了精简版文件。

我无法摆脱Could not load ViewHandler警告。所以我尝试使用此警告（仅在部署应用程序时记录）。在解决了一些其他JSF迁移问题后，应用程序似乎正在运行而没有进一步的问题。

无法使用具有Facelets的Trinidad 2加载ViewHandler（InstantiationException）

更新

依赖关系

`web.xml`

`faces-config.xml`

1 个答案: