Mojarra 2.1.0 - FCS不能与tomcat 7一起使用

Question

我使用JSF 2.1(Mojarra 2.1.0 - FCS)与tomcat 7如下:

<dependency>
 <groupId>com.sun.faces</groupId>
 <artifactId>jsf-api</artifactId>
 <version>2.1.0-b11</version>
 <scope>compile</scope>
 </dependency>

 <dependency>
 <groupId>com.sun.faces</groupId>
 <artifactId>jsf-impl</artifactId>
 <version>2.1.0-b11</version>
 <scope>compile</scope>
 </dependency>

当我试图在tomcat 7上运行它时,我得到以下异常:

java.lang.InstantiationException: com.sun.faces.application.ServletContextSensitiveSingletonStore
    at java.lang.Class.newInstance0(Class.java:340)
    at java.lang.Class.newInstance(Class.java:308)
    at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:118)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4268)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4771)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:138)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:785)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:763)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:558)
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:674)
    at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:599)
    at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:538)
    at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1390)
    at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:355)
    at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:89)
    at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:312)
    at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:292)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:998)
    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:772)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:138)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:990)
    at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:275)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:138)
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:424)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:138)
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:648)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:138)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:576)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:415)

任何想法为什么我得到这个例外,以及如何解决它？

Answer 1

这是一个已知问题.这实际上是由问题1937引起的.简而言之,注释扫描器偶然包含Glassfish特定的代码,这导致它不适用于基本的servletcontainer,它不带有内置注释扫描程序,如Tomcat和Jetty.这已在2.1.1中修复.

因此,要解决您的问题,您需要升级到至少2.1.1.目前的最新版本是2.1.3,我建议最新版本.另请参阅所有Maven pom信息的Mojarra下载页面.

一个完全不同的替代方案是用更完整的容器(例如Glassfish)替换Tomcat.这将为您提供EJB/JPA支持的优势,以便您可以轻松,轻松地构建业务服务,执行后台作业,与oneliners交互数据库等.