Sharing of jsp pages

We often want a web page to display different data based on different requests.

The method is to add a variable to the session to distinguish different request types according to different values.

后台：
request.getSession().setAttribute("ordId",1);

jsp:

<c:if test="${ordId==1}">

    <ul> 
        <li>Order Name: ${order.orderName}</li> 
        <li>Order ID: ${order.id}</li> 
        <li>Order ID Total Amount: ${order.totalPrice} </li> 
        <li>Order time: <fmt:formatDate value="${order.byTime}" pattern="yyyy-MM-dd HH:mm:ss"/></li> 
    </ul> 
< /c:if>