使用cookie保存皮肤

下面是使用cookie保存皮肤的代码：

backbean：

@Scope(SESSION)
@Name("skinBean")
public class SkinBean {

 private String skin = "blueSky";

 
 public String getSkin() {      
  HttpServletRequest httpServletRequest = (HttpServletRequest) FacesContext
    .getCurrentInstance().getExternalContext().getRequest();
  Cookie[] cookies = httpServletRequest.getCookies();
  if (cookies != null) {
   for (int i = 0; i < cookies.length; i++) {
    if (cookies[i].getName().equalsIgnoreCase("skin")) {
     this.skin = cookies[i].getValue();

break;//只取得最后选择的皮肤
    }
   }
  } 
  return skin;
 }

 

 

 public void setSkin(String skin) {
  this.skin = skin;  
  HttpServletResponse httpServletResponse = (HttpServletResponse) FacesContext
    .getCurrentInstance().getExternalContext().getResponse();
  Cookie cookie = new Cookie("skin", skin);
  cookie.setMaxAge(365);
  cookie.setComment("Richfaces skin");
  httpServletResponse.addCookie(cookie);
 
 }
 public void skinChangeListener(ActionEvent event){
  //HtmlSelectOneMenu ss = (HtmlSelectOneMenu) event.getComponent().findComponent("selectSkin");
  //String selected=ss.getValue().toString();
  //this.skin=selected;
 
 }

 

 

skin.xhtml

 

 

 

<h:selectOneMenu id="selectSkin" value="#{skinBean.skin}">
   <f:selectItem itemLabel="Wfw" itemValue="WfwSkin" />
   <f:selectItem itemLabel="Plain" itemValue="plain" />
   <f:selectItem itemLabel="EmeraldTown" itemValue="emeraldTown" />
   <f:selectItem itemLabel="BlueSky" itemValue="blueSky" />
   <f:selectItem itemLabel="Wine" itemValue="wine" />
   <f:selectItem itemLabel="JapanCherry" itemValue="japanCherry" />
   <f:selectItem itemLabel="Ruby" itemValue="ruby" />
   <f:selectItem itemLabel="Classic" itemValue="classic" />
   <f:selectItem itemLabel="DeepMarine" itemValue="deepMarine" />
   <a4j:support event="onchange" limitToList="true" actionListener="#{skinBean.skinChangeListener}" oncomplete="

window.location.href=window.location.href;

//window.location.reload(true);"
    reRender="selectSkin" ajaxSingle="true">
   </a4j:support>
  </h:selectOneMenu>
 

 

注意：因为request和response不同步的原因，所以必须让页面刷新一次