当在左侧部分选择菜单项时，我需要在主内容sectin中动态加载xhtml页面，从而避免页面刷新。
我在左侧部分创建了一个Prime Faces动态面板菜单，其中包含每个子菜单的子菜单和菜单项列表。根据登录用户的角色动态加载菜单。选择菜单项时，将调用相应的动作侦听器，但不会加载或显示页面
正在使用Prime Faces 3.4.1 / JSP 2.0 / Spring Framework 3.1.1开发应用程序
屏幕布局分为四个部分。
标题 - 所有人共有的徽标和图标 页脚 - 包含页脚信息 左侧栏 - 包含菜单。这是根据登录用户的角色动态填充的 主要内容 - 显示与左侧所选菜单项对应的实际.xhtml页面
我使用了Facelet模板来定义布局和内容。以下是定义的模板
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:p="http://primefaces.org/ui"
xmlns:f="http://java.sun.com/jsf/core">
<h:head>
<title>RF</title>
<link type="text/css" rel="stylesheet" href="# {facesContext.externalContext.requestContextPath}/javax.faces.resource/main.css.xhtml?ln=css" />
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</h:head>
<h:body>
<f:view contentType="text/html; charset=UTF-8" encoding="UTF-8" >
<div id="outerWrapper">
<div id="pageHeader">
<ui:insert name="pageHeader">
</ui:insert>
</div>
<div id="contentWrapper">
<div id="leftPanel">
<div class="jsmenu">
<ui:insert name="leftPanel">
</ui:insert>
</div>
</div>
<div id="mainContent">
<div id="mainStyle">
<h:panelGroup id="mainOutputPanel">
<h:form id="mainContentForm">
<ui:insert name="mainContent">
</ui:insert>
</h:form>
</h:panelGroup>
</div>
</div>
<div class="clearFloat"></div>
</div>
<div id="footer">
<ui:insert name="footer">
</ui:insert>
</div>
</div>
</f:view>
</h:body>
</html>
以下是主屏幕布局，其中包括上面定义的模板。我已经包含了header.xhtml，footer.xhtml和rfleft.xhtml，其中包含动态填充的菜单。在，我正在从JSF支持bean
加载页面<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:p="http://primefaces.org/ui"
xmlns:f="http://java.sun.com/jsf/core">
<h:body>
<ui:composition template="/pages/protected/templates/layoutTemplate.xhtml">
<ui:define name="pageHeader">
<ui:include src="/pages/protected/templates/loginHeader.xhtml">
</ui:include>
</ui:define>
<ui:define name="leftPanel">
<ui:include src="/pages/protected/templates/rfleft.xhtml">
</ui:include>
</ui:define>
<ui:define name="mainContent">
<ui:include id="mainPage" src="#{menuMB.screenName}">
</ui:include>
</ui:define>
<ui:define name="footer">
<ui:include src="/pages/protected/templates/footer.xhtml">
</ui:include>
</ui:define>
</ui:composition>
</h:body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:p="http://primefaces.org/ui"
xmlns:f="http://java.sun.com/jsf/core" xmlns:c="http://java.sun.com/jsp/jstl/core">
<h:body>
<h:form id="leftMainForm">
<p:panelMenu style="width:200px" model="#{menuMB.mnuModel}">
</p:panelMenu>
</h:form>
</h:body>
</html>
@SessionScoped
@ManagedBean(name = "menuMB")
public class MenuMB implements Serializable {
@ManagedProperty(value = "#{LoginService}")
ILoginService loginService;
private String screenName = "";
String menuUrl = "";
User loggedUser = null;
private List<FunctionMaster> fmList = null;
private MenuModel mnuModel = new DefaultMenuModel();
public MenuMB() {
loggedUser = (User) RFContextUtil.getSessionFromContext("user");
}
@PostConstruct
public void loadMenu() {
if (loggedUser != null) {
//Load the actions to be performed by the logged user . Loading as menu item
fmList = loginService.getMenuForUser(loggedUser.getUserID());
}
createMenu(fmList);
}
private void createMenu(List<FunctionMaster> fmList) {
try {
if (fmList != null) {
for (FunctionMaster sub : fmList) {
if (sub.getParentFunctionID() == 0) {
Submenu rfSubMenu = new Submenu();
rfSubMenu.setLabel(sub.getScreenDisplayName());
getMnuModel().addSubmenu(rfSubMenu);
for (FunctionMaster item : fmList) {
if (item.getParentFunctionID() != 0) {
if (item.getParentFunctionID() == sub.getFunctionID()) {
MenuItem rfSubItem = new MenuItem();
rfSubItem.setId(item.getFunctionName() + item.getFunctionID().toString());
rfSubItem.setValue(item.getScreenDisplayName());
rfSubItem.setImmediate(true);
rfSubItem.setProcess("@form");
rfSubItem.setPartialSubmit(true);
rfSubItem.setUpdate(":mainOutputPanel");
rfSubItem.setAjax(true);
rfSubItem.setRendered(true);
//Adding Action Listener
ExpressionFactory factory = FacesContext.getCurrentInstance().getApplication().getExpressionFactory();
MethodExpression methodExpr = factory.createMethodExpression(FacesContext.getCurrentInstance().getELContext(), "#{menuMB.loadScreenFromMenu}", Void.class, new Class[]{ActionEvent.class});
MethodExpressionActionListener actionListener = new MethodExpressionActionListener(methodExpr);
rfSubItem.addActionListener(actionListener);
rfSubMenu.getChildren().add(rfSubItem);
}
}
}
}
}
}
} catch (Exception ex) {
String excep = ex.getMessage();
}
}
public void loadScreenFromMenu(ActionEvent event) {
MenuItem menuItem = (MenuItem) event.getComponent();
String attrName;
try {
if (menuItem != null) {
screenName = RequestFactoryContextUtil.getResourceBundleString(menuItem.getId());
//Set the screen that needs to be displayed. This is the property that is used in the Main Screen layout
setScreenName(screenName);
}
} catch (Exception exc) {
}
}
}
感谢任何帮助。
-Baskar