我正在尝试创建一个在tr:commandNavigationItem
按下 a 时弹出的模态对话框。我可以弹出一个弹出窗口,当我单击我创建的“取消”按钮时,它会调用 returnListener,但弹出窗口本身不会消失。调用“提交”按钮会导致异常。
该网站正在使用 facelets,因此调用页面具有它使用的模板。
我在日志中收到以下警告:
W org.apache.myfaces.trinidad.component.UIXComponentBase getClientId getClientId should not be called while the view is being constructed. Component ID: holdOrder_hold
和
W com.ibm.ws.webcontainer.srt.SRTServletResponse setIntHeader SRVE8094W: WARNING: Cannot set header. Response already committed.
这是调用页面 (.xhtml):
<tr:navigationPane hint="bar" inlineStyle="width:100%;" id="completeNavBar">
...
<tr:commandNavigationItem id="holdButton" text="#{odMessages['BUTTON_HOLD_ORDER']}" partialSubmit="true" useWindow="true" rendered="#{taskHandler.holdAndReleaseEnabled}" action="dialog:holdOrder" immidiate="true" returnListener="#{taskHandler.handleReturnHoldDialog}" windowHeight="350" windowWidth="800"/>
...
</tr:navigationPane>
这是完整的对话框页面 (.xhtml):
<ui:composition
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:tr="http://myfaces.apache.org/trinidad"
xmlns:trd="http://myfaces.apache.org/trinidad/demo"
xmlns:trh="http://myfaces.apache.org/trinidad/html">
<jsp:directive.page contentType="text/html;charset=utf-8"/>
<f:view>
<tr:document title="Put Order On Hold">
<tr:form>
<tr:messages globalOnly="true"/>
<tr:panelFormLayout>
<tr:inputText id="holdOrder_comment" rows="5" label="Comment:" value="#{taskHandler.task.holdObj.holdComment}" />
<f:facet name="footer">
<tr:commandButton id="holdOrder_hold" actionListener="#{taskHandler.holdToDo}" text="Submit" partialSubmit="true"/>
<tr:commandButton id="holdOrder_cancel" actionListener="#{taskHandler.cancelDialog}" text="cancel" partialSubmit="true"/>
</f:facet>
</tr:panelFormLayout>
</tr:form>
</tr:document>
</f:view>
</ui:composition>
这是使用的单个支持 bean:
@ManagedBean
@ViewScoped
public class TaskHandler implements Serializable {
...
public void holdToDo(ActionEvent event) {
System.out.println("putting on hold");
HashMap<Object, Object> returnMap = new HashMap<Object, Object>();
try {
boolean response = ToDoHold.execute(task);
if(!response) {
returnMap.put("returnValue", "no validation errors");
}
} catch (Exception e) {
System.out.println("exception in holdToDo");
e.printStackTrace();
}
RequestContext.getCurrentInstance().returnFromDialog(Boolean.TRUE, returnMap);
}
public void handleReturnHoldDialog(ReturnEvent event) {
System.out.println("returning hold Dialog");
}
public void cancelDialog(ActionEvent event) {
System.out.println("cancelling dialog");
try {
HashMap<Object, Object> returnMap = new HashMap<Object, Object>();
returnMap.put("returnValue", "cancel");
RequestContext.getCurrentInstance().returnFromDialog(Boolean.FALSE, returnMap);
} catch(Exception e) {
System.out.println("cancelling dialog: exception");
e.printStackTrace();
}
}
...
}
使用的版本:Trinidad 2.0.1 JSF 2.0 Servlet 3