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    jsp 使用request为页面添加静态数据的实例

    作者:dybe 时间:2021-08-28 18:59

    一,在div中插入要显示的数据!

    1,以下是原网页插入数据代码:

    <div>
     <ul class="list-content">
    <li><a href="">aaaaaaaaaaaaaaaaaaa</a><span>[06-29]</span></li>
    <li><a href="">aaaaaaaaaaaaaaaaaaa</a><span>[06-29]</span></li>
    <li><a href="">aaaaaaaaaaaaaaaaaaa.</a><span>[06-29]</span></li>
    <li><a href="">aaaaaaaaaaaaaaaaaaa</a><span>[06-29]</span></li>
    <li><a href="">aaaaaaaaaaaaaaaaaaa.</a><span>[06-29]</span></li>
    <ul>
    <div>
    <div>
    <ul class="list-content">
    <li><a href="">aaaaaaaaaaaaaaaaaaa</a><span>[06-29]</span></li>
     <li><a href="">aaaaaaaaaaaaaaaaaaa</a><span>[06-29]</span></li>
    <li><a href="">aaaaaaaaaaaaaaaaaaa...</a><span>[06-29]</span></li>
    <li><a href="">aaaaaaaaaaaaaaaaaaa</a><span>[06-29]</span></li>
    <li><a href="">aaaaaaaaaaaaaaaaaaa...</a><span>[06-29]</span></li>
    <ul>
    </div>

    2,在src中创建servlet类:

    使用request.setAttribute发送数据

    public static ArrayList<String> list;
     static{
     list=new ArrayList<String>();
     listdc.add("dcrewrwe3eeeeeeeeeeeeeeeee"); 
     listdc.add("dcrewrwe3eeeeeeeeeeeeeeeee"); 
     listdc.add("dcrewrwe3eeeeeeeeeeeeeeeee");
     listdc.add("dcrewrwe3eeeeeeeeeeeeeeeee"); 
     listdc.add("dcrewrwe3eeeeeeeeeeeeeeeee"); 
       public static ArrayList<String> listdc;
     static{
     listdc=new ArrayList<String>();
     listdc.add("dcrewrwe3eeeeeeeeeeeeeeeee");
     listdc.add("dcrewrwe3eeeeeeeeeeeeeeeee");
     listdc.add("dcrewrwe3eeeeeeeeeeeeeeeee");
     listdc.add("dcrewrwe3eeeeeeeeeeeeeeeee");
     listdc.add("dcrewrwe3eeeeeeeeeeeeeeeee");
     }
     public void doGet(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {
      request.setCharacterEncoding("UTF-8");
      response.setContentType("text/html");
      ArrayList<String>list=getData();
      
      request.setAttribute("new", list);
      request.setAttribute("dc", listdc);
      request.getRequestDispatcher("/page/default.jsp").forward(request, response);
     }

    3,在需要插入数据的地方加入jsp脚本:

    使用request.getAttribute接收数据

    通过for循环打印数据

    <div>
         <ul class="list-content">
         
          <%
          ArrayList<String> list =(ArrayList<String>)request.getAttribute("new");
          if(list!=null)
           for(int i=0;i<list.size();i++){
          %>
           <li>
          <a href="" style=" rel="external nofollow" rel="external nofollow" width:644px">
            <% out.print(list.get(i)); %>
            </a><span>
            [06-29]
            </span>
           </li>
          <% }%>
         </ul>
        </div>
        <div>
         <ul class="list-content">
         <%ArrayList<String> listdc=(ArrayList<String>)request.getAttribute("dc");
          if(listdc!=null)
          for(int i=0;i<listdc.size();i++){
         %>
         <li>
         <a href="" style=" rel="external nofollow" rel="external nofollow" width:644px">
         <% out.print(listdc.get(i)); %>
         </a><span>
         [06-29]</span>
         </li>
         <% } %>
         </ul>
        </div>

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    jsjbwy
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