Question

我有一个IceFaces 1.8和jsf 1.1 jsp页面

<ice:form partialSubmit="true">
                                        <ice:messages />
                                        <ice:panelGrid columns="2">
                                            <ice:outputText value="#{msg.UserName}"></ice:outputText>
                                            <h:inputText required="true" id="UserName"
                                                value="#{loginBean.userName}" />

                                            <ice:outputText value="#{msg.Password}"></ice:outputText>
                                            <h:inputSecret id="Password" required="true"
                                                value="#{loginBean.password}" />

                                            <ice:outputText value=""></ice:outputText>
                                            <h:commandButton type="submit" value="#{msg.Login}"
                                                action="#{loginBean.login}" />
                            </ice:panelGrid>
                                </ice:form>

首次点击登录按钮时，操作抛出异常

java.lang.RuntimeException: no message available
    at com.icesoft.faces.webapp.http.servlet.MainServlet.service(MainServlet.java:177)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
    at com.icesoft.faces.webapp.xmlhttp.BlockingServlet.service(BlockingServlet.java:56)
    at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:226)
    at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:124)
    Truncated. see log file for complete stacktrace
java.lang.NullPointerException
    at com.sun.faces.application.NavigationHandlerImpl.getViewId(NavigationHandlerImpl.java:160)
    at com.sun.faces.application.NavigationHandlerImpl.handleNavigation(NavigationHandlerImpl.java:106)
    at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:89)
    at javax.faces.component.UICommand.broadcast(UICommand.java:312)
    at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:267)
    Truncated. see log file for complete stacktrace
>

第二次按下代码时运行正常请就这个问题以及如何解决这个问题提出建议

Answer 1

可能是因为您正在使用ice:form并通过h:commandButton提交。将commandButton更改为ice:commandButton，然后重试。

变化：

<h:commandButton type="submit" value="#{msg.Login}" 
     action="#{loginBean.login}" />

为：

<ice:commandButton type="submit" value="#{msg.Login}" 
    action="#{loginBean.login}" />

首先点击ice：commandbutton抛出异常

1 个答案: