三叶草 发表于 2021-10-22 10:55:06

jsp 使用request为页面添加静态数据的实例

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></span></li>
<li><a href="">aaaaaaaaaaaaaaaaaaa</a><span></span></li>
<li><a href="">aaaaaaaaaaaaaaaaaaa.</a><span></span></li>
<li><a href="">aaaaaaaaaaaaaaaaaaa</a><span></span></li>
<li><a href="">aaaaaaaaaaaaaaaaaaa.</a><span></span></li>
<ul>
<div>
<div>
<ul class="list-content">
<li><a href="">aaaaaaaaaaaaaaaaaaa</a><span></span></li>
<li><a href="">aaaaaaaaaaaaaaaaaaa</a><span></span></li>
<li><a href="">aaaaaaaaaaaaaaaaaaa...</a><span></span></li>
<li><a href="">aaaaaaaaaaaaaaaaaaa</a><span></span></li>
<li><a href="">aaaaaaaaaaaaaaaaaaa...</a><span></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>
      
      </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>
   </span>
   </li>
   <% } %>
   </ul>
    </div>以上这篇jsp 使用request为页面添加静态数据的实例就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持CodeAE代码之家。

https://www.uoften.com/program/jsp/20180413/48285.html
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