Question

我正在开发一个jsf迁移项目。在迁移到jsf 2.0的过程中，我用myfaces-impl（2.1.6）替换了myfaces-api-1.1.5和myfaces-impl1.1.5。我得到以下例外。

at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:121)
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1824)
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1759)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [:1.6.0_22]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [:1.6.0_22]
    at java.lang.Thread.run(Thread.java:662) [:1.6.0_22]
Caused by: java.lang.NoClassDefFoundError: org/apache/myfaces/el/ValueBindingImpl
    at java.lang.Class.getDeclaredConstructors0(Native Method) [:1.6.0_22]
    at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389) [:1.6.0_22]
    at java.lang.Class.getConstructor0(Class.java:2699) [:1.6.0_22]
    at java.lang.Class.getConstructor(Class.java:1657) [:1.6.0_22]
    at org.jboss.as.web.deployment.jsf.JsfManagedBeanProcessor.deploy(JsfManagedBeanProcessor.java:105)
    at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:115)
    ... 5 more
Caused by: java.lang.ClassNotFoundException: org.apache.myfaces.el.ValueBindingImpl from [Module "deployment.ASSET.war:main" from Service Module Loader]
    at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:191)
    at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:361)
    at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:333)
    at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:310)
    at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:103)
    ... 11 more

当我试图在jar文件中找到ValueBindingImpl时，我无法在myfaces-impl（2.1.6）中找到org.apache.myfaces.el.ValueBindingImpl ..还有其他选择吗？

Answer 1

您的代码似乎使用的是MyFaces 1.1特定的实现类，而不是JSF 1.1 API类。例如，

ValueBinding binding = new ValueBindingImpl(...);

而不是

ValueBinding binding = application.createValueBinding(...);

您需要修复代码以删除MyFaces 1.1特定的实现类。

请注意，自{JS} 1.2以来，ValueBinding已弃用，如果可以，请替换为ValueExpression。

在myfaces-impl 2.1.6中找不到org.apache.myfaces.el.ValueBindingImpl类

1 个答案: