<h:form>
<h:commandButton value="Buy" styleClass="button-buy" actionListener="#{basketCount.incrementBasketCount}" immediate="true">
</h:commandButton>
</h:form>

JSF2部分:

 <li class="basket">    
  #{basketCount.basketCount}
 </li>

面孔:

 <managed-bean>
  <managed-bean-name>basketCount</managed-bean-name>
  <managed-bean-class>main.BasketCount</managed-bean-class>
  <managed-bean-scope>session</managed-bean-scope>
 </managed-bean>

简单的bean进行操作聆听:

package main;

import java.io.Serializable;

    public class BasketCount implements Serializable {

     private static final long serialVersionUID = -4576074045587545642L;

     int inBasketCount = 0;

     public void incrementBasketCount(javax.faces.event.ActionEvent event) {
      inBasketCount++;
     }

     public int getBasketCount() {
      return inBasketCount;
     }

    }

用例:
1. 单击“购买”按钮
2. 篮子的内容已增加
3. 在FF中单击Shift-Ctrl-Del(清洁cookie和Cache)并刷新
4. 篮子的柜台保持不变

据我了解,会话范围指定的是该计数器(步骤 2)仅在会话范围内增加,并且在cookie之后,应重置缓存清理?

问题,没有。

有帮助吗?

解决方案

通过提供持续的饼干来解决

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