我目前使用:
- 阿帕奇雄猫 7
- JBoss Weld servlet 1.0.1-Final
- 空 beans.xml
<listener-class>org.jboss.weld.environment.servlet.Listener</listener-class>
在 web.xml 中
我目前正在测试一个简单的计数器@ConversationScoped bean,其目的是在开始对话范围后,在单击按钮时不断增加计数器..
但似乎在提交之后,bean总是会被重新创建,即使在我首先开始对话之后也是如此。
这是我的简单 bean:
package user.ui;
import java.io.Serializable;
import javax.annotation.PostConstruct;
import javax.enterprise.context.Conversation;
import javax.enterprise.context.ConversationScoped;
import javax.inject.Inject;
import javax.inject.Named;
@Named
@ConversationScoped
public class CounterBean implements Serializable {
@Inject
private Conversation conversation;
@PostConstruct
public void init() {
System.out.println("beginning conversation : " + this.conversation);
this.conversation.begin();
}
private int counter;
public int getCounter() {
return counter;
}
public void setCounter(int counter) {
this.counter = counter;
}
public void increment() {
this.counter++;
}
}
这是我的简单 jsf 视图:
<ui:composition template="/template/masterlayout.xhtml">
<ui:define name="windowTitle">Test Conversation Scope</ui:define>
<ui:define name="heading">Test Conversation Scope</ui:define>
<ui:define name="content">
<h:form>
<p:messages id="messages" globalOnly="true" />
<p:panel header="Test Conversation Scope">
<h:outputText value="counter : " /> #{counterBean.counter}
</p:panel>
<h:commandButton value="Submit Data to Server" action="#{counterBean.increment}" />
</h:form>
</ui:define>
</ui:composition>
这是第一次访问的日志文件:
INFO: Server startup in 12055 ms
beginning conversation : ID: 1, transient: true, timeout: 600000ms
显示视图后,我单击按钮,然后在 catalina.out 中使用此日志引发异常:
beginning conversation : ID: 2, transient: true, timeout: 600000ms
unhandled exception : org.jboss.weld.context.ContextNotActiveException: WELD-001303 No active contexts for scope type @ConversationScoped
cause exception : org.jboss.weld.context.ContextNotActiveException: WELD-001303 No active contexts for scope type @ConversationScoped, cause exception is BE : false
这是来自 tomcat 日志的异常跟踪:
Apr 4, 2011 3:56:27 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [Faces Servlet] in context with path [/primebert] threw exception [WELD-001303 No active contexts for scope type @ConversationScoped] with root cause
org.jboss.weld.context.ContextNotActiveException: WELD-001303 No active contexts for scope type @ConversationScoped
at org.jboss.weld.conversation.ConversationImpl.checkConversationActive(ConversationImpl.java:79)
at org.jboss.weld.conversation.ConversationImpl.isTransient(ConversationImpl.java:234)
at org.jboss.weld.conversation.ConversationImpl.toString(ConversationImpl.java:199)
at java.text.MessageFormat.subformat(MessageFormat.java:1246)
at java.text.MessageFormat.format(MessageFormat.java:836)
at java.text.Format.format(Format.java:140)
at java.text.MessageFormat.format(MessageFormat.java:812)
at ch.qos.cal10n.MessageConveyor.getMessage(MessageConveyor.java:89)
at org.jboss.weld.logging.WeldMessageConveyor.getMessage(WeldMessageConveyor.java:78)
at org.slf4j.cal10n.LocLogger.debug(LocLogger.java:95)
at org.jboss.weld.conversation.ConversationImpl.switchTo(ConversationImpl.java:190)
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.jboss.weld.util.reflection.SecureReflections$13.work(SecureReflections.java:304)
at org.jboss.weld.util.reflection.SecureReflectionAccess.run(SecureReflectionAccess.java:54)
at org.jboss.weld.util.reflection.SecureReflectionAccess.runAsInvocation(SecureReflectionAccess.java:163)
at org.jboss.weld.util.reflection.SecureReflections.invoke(SecureReflections.java:298)
at org.jboss.weld.bean.proxy.ClientProxyMethodHandler.invoke(ClientProxyMethodHandler.java:113)
at org.jboss.weld.util.CleanableMethodHandler.invoke(CleanableMethodHandler.java:43)
at org.jboss.weld.conversation.ConversationImpl_$$_javassist_2.switchTo(ConversationImpl_$$_javassist_2.java)
at org.jboss.weld.conversation.AbstractConversationManager.beginOrRestoreConversation(AbstractConversationManager.java:137)
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.jboss.weld.util.reflection.SecureReflections$13.work(SecureReflections.java:304)
at org.jboss.weld.util.reflection.SecureReflectionAccess.run(SecureReflectionAccess.java:54)
at org.jboss.weld.util.reflection.SecureReflectionAccess.runAsInvocation(SecureReflectionAccess.java:163)
at org.jboss.weld.util.reflection.SecureReflections.invoke(SecureReflections.java:298)
at org.jboss.weld.bean.proxy.ClientProxyMethodHandler.invoke(ClientProxyMethodHandler.java:113)
at org.jboss.weld.util.CleanableMethodHandler.invoke(CleanableMethodHandler.java:43)
at org.jboss.weld.conversation.ServletConversationManager_$$_javassist_0.beginOrRestoreConversation(ServletConversationManager_$$_javassist_0.java)
at org.jboss.weld.jsf.WeldPhaseListener.initiateSessionAndConversation(WeldPhaseListener.java:171)
at org.jboss.weld.jsf.WeldPhaseListener.beforeRestoreView(WeldPhaseListener.java:118)
at org.jboss.weld.jsf.WeldPhaseListener.beforePhase(WeldPhaseListener.java:87)
at com.sun.faces.lifecycle.Phase.handleBeforePhase(Phase.java:228)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:99)
at com.sun.faces.lifecycle.RestoreViewPhase.doPhase(RestoreViewPhase.java:111)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:312)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:306)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:541)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:383)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:243)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:288)
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)
任何想法出了什么问题?
谢谢 !