尝试在jsp中执行与@Adjust类似的操作

时间:2017-10-18 08:09:11

标签: java date jsp jstl jstl-functions

我正在尝试确定日期是否在60天内(与今天的日期相比)。

如果服务日期在60天内,该列将显示“是”,另一方面,如果日期超过60天,该列将显示“否”。

我知道如果在莲花笔记中应用,我可以用这个公式来实现它

@If(@Adjust(ServiceDate; 0; ; 60; 0; 0; 0) >= @Today; "Yes"; "No")

现在,我尝试在jsp文件中做类似的事情(没有莲花笔记应用程序)

 <display:table name="${serviceList}" class="its" uid="row"
        sort="list" pagesize="10" requestURI="service_view" export="false" defaultsort="2" defaultorder="descending" id="serviceTable">

    <display:column style="width: 30%" title="Service Name" property="serviceName"  />

    <!-- this column is for display -->
    <display:column style="width: 10%" title="Service Date" property="serviceDate" format="{0,date,dd-MM-yyyy}" />

    <!-- this service date is for calculation -->
    <display:column title="Service date">

    <fmt:formatDate value="${attr.row.serviceDate}" var="formatservicedate" 
            type="date" pattern="dd-MM-yyyy" />
    <c:set var= "servicedate" value = "${formatservicedate}" /> 
    <c:out value = "${servicedate}" />
    </display:column>

    <!-- this today's date is for calculation -->
    <display:column title='today date'>  

     <%@page import="java.text.SimpleDateFormat, java.util.Calendar, java.text.DateFormat"%>
     <%
         DateFormat dateFormat = new SimpleDateFormat("dd-MM-yyyy");
         Calendar cal = Calendar.getInstance();           
     %>

    <%-- try to use variable to show --%>
    <!-- get today's date in dd/mm/yyyy by variable -->

    <c:set var= "todaydate" value = "<%=    dateFormat.format(cal.getTime()) %>" />
    <c:out value = "${todaydate}" />
    </display:column>

    <display:column title='Is within 60 days'>
        <%@page import="java.text.SimpleDateFormat, java.util.Calendar, java.text.DateFormat"%>
     <%
         DateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy");
         Calendar cal = Calendar.getInstance();           
     %>

       <!-- get today's date in dd/mm/yyyy by variable -->
    <c:set var= "todaydate" value = "<%=    dateFormat.format(cal.getTime()) %>" />

    <!-- get service date by variable-->
    <fmt:formatDate value="${attr.row.serviceDate}" var="formatservicedate" 
            type="date" pattern="dd/MM/yyyy" />
    <c:set var= "servicedate" value = "${formatservicedate}" /> 

    <!-- I tried <c:if test="${servicedate + 60 ge todaydate}"> but not work -->
    <!-- I am not sure how to plus 60 days for service date in the logic -->
    <c:if test="${servicedate ge todaydate}">
     <p><b>Yes</b></p>
    </c:if>
    <c:if test="${!servicedate ge todaydate}">
     <p><b>No</b></p>
    </c:if>

    </display:column>
</display:table> 

所以我想知道是否可以在jsp中执行与@Adjust()类似的操作来确定日期是否在60天内?非常感谢。

1 个答案:

答案 0 :(得分:0)

最后我弄清楚了。

首先按变量获取今天的日期和服务日期。

然后准备逻辑

找出一天的等式

60 seconds * 60 minutes * 24 hours 

查找方程式

Math.abs(variable1.getTime() - variable2.getTime());

如果天数除以<= 60,则显示是,否则显示否