Question

昨天我已经发布了这篇文章..但没有人回答它.. 我正在使用spring mvc框架。

我想做如下图所示的分页： -

所以我做了： -

    @RequestMapping(value = "/detailssection/id",method=RequestMethod.GET)
     public @ResponseBody  String showthedetails(Map<String, Object> map, HttpServletRequest request) throws IOException{

//I want to display 5 details per page

                    int recordsPerPage = 5; 

 //It will count total no of records(like 300 records are there)

  int totalnoOfrecords = viewService.TotalnoOfRecoredsbanglains1();

//If the totalnoOfrecords=300 then page noumber will be 300/5=60 that means 1,2....60           
int pagenumbers = (int) Math.ceil(totalnoofrecords * 1.0 / recordsPerPage);   

                         map.put("detail", new Detail());
                        map.put("noOfPages", pagenumbers);
                        map.put("detailList", viewService.viewDetails());



            return "detailssection";
        }

我的jsp页面如下： -

 <div id= "part1">

 <div id= "details">
        <p>${detail.description}</p>
   </div>


    </c:forEach>

  <%--For displaying Previous link except for the 1st page --%>

   <c:if test="${currentPage != 1}">
      <a href="/detailssection/id?pagenumber=${currentPage - 1}">Previous</a>
    </c:if>



    <%--For displaying Page numbers. 
    The when condition does not display a link for the current page--%>

            <c:forEach begin="1" end="${noOfPages}" var="i">
                <c:choose>
                    <c:when test="${currentPage eq i}">
                        ${i}
                    </c:when>
                    <c:otherwise>
                        <a href="/detailssection/id?pagenumber=${i}">${i}</a>
                    </c:otherwise>
                </c:choose>
            </c:forEach>


    <%--For displaying Next link --%>

   <c:if test="${currentPage lt noOfPages}">
        <a href="/detailssection/id?pagenumber=${currentPage + 1}">Next</a>
    </c:if>

</div>

但我没有得到任何页码。只显示＆＃34;上一页＆＃34; section.Its喜欢： - 我做错了什么？jsp页面有问题吗？

Answer 1

让我们从开始就开始吧。

如果您的requestScope上有地图，请假设MyMap使用以下密钥：details，noOfPages和detailList来访问它＃39;按键的值，语法如下：

<c:forEach begin="1" end="$MyMap['noOfPages']" var="i" varStatus="loop">
    <c:choose>
        <c:when test="${currentPage eq i}">
            ${i}
        </c:when>
        <c:otherwise>
            <a href="/detailssection/id?pagenumber=${loop.index}">${loop.index}</a>
        </c:otherwise>
    </c:choose>
</c:forEach>

Spring mvc分页如何获得结果

1 个答案: