Struts 2 嵌套参数问题
假设我有一个业务主键编号列表和一个 OrderId 编号到订单的 java Map。我如何检索订单对象？
Action Form
// assume proper getters and setters and that both objects are initialized
private List<CustomerOrders> orders;
private Map<Integer, Order> orderIdMap;
// JSP
<s:iterator value="orders">
<s:property value="%{orderIdMap['what_goes_here'].orderDate}" />
</s:iterator>
在“what_goes_here”空白中，我尝试了以下操作：
%{orders.orderId}
%{orderId}
<s:property value="%{orders.orderId}" />
<s:property value='%{orders.orderId}' />
我还尝试了在what_goes_here之前不使用单引号，但它也不起作用。
那么如何使用订单列表的当前索引键来访问 Map 中的值呢？
谢谢！
Suppose that I have a list of business primary key numbers and a java Map of OrderId numbers to Orders. How would I retrieve the order object?
Action Form
// assume proper getters and setters and that both objects are initialized
private List<CustomerOrders> orders;
private Map<Integer, Order> orderIdMap;
// JSP
<s:iterator value="orders">
<s:property value="%{orderIdMap['what_goes_here'].orderDate}" />
</s:iterator>
In the "what_goes_here" blank, I've tried the following:
%{orders.orderId}
%{orderId}
<s:property value="%{orders.orderId}" />
<s:property value='%{orders.orderId}' />
I also tried it without the single quotes before what_goes_here and it didn't work either.
So how do I access the value from the Map using the key which is the current index of the orders list?
Thanks!
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这是未经测试的，但尝试类似的东西
This is untested but try something like