JSP page javax.el.PropertyNotFoundException

Question

我的视图模型如下所示：

public class HomePageViewModel {
    private List<AlertViewModel> alertViewModels;
    public List<AlertViewModel> getAlertViewModels() { 
        return alertViewModels;
    }
    public void setAlertViewModels(List<AlertViewModel> alertViewModels) {
        this.alertViewModels = alertViewModels;
    }
    public HomePageViewModel(){
        alertViewModels = new ArrayList<AlertViewModel>();
    }
}

AlertViewModel如下所示：

public class AlertViewModel {
    private String id;
    public String getId(){
        return id;
    }
    public void setId(String id){
        this.id = id;
    }
    public AlertViewModel(){
        id = "";
    }
}

JSP如下所示：（viewModel是HomePageViewModel）

<table border="1">
    <tr>
    <th>Id</th>
    </tr>
    <c:forEach items="${viewModel.AlertViewModels}" var="alert">
      <tr>
      <td>${alert.Id}</td>
      </tr>
    </c:forEach>    
</table>

但我得到了这个错误：

HTTP ERROR 500
Problem accessing /. Reason:
Could not find property AlertViewModels in class viewmodels.HomePageViewModel
Caused by:
javax.el.PropertyNotFoundException: Could not find property AlertViewModels in class viewmodels.HomePageViewModel

我做错了什么？我想我的设置是正确的，对吗？

Answer 1

getter名称为getAlertViewModels()，因此您应该引用alertViewModels（小写A）。