使用下面這個jsp的前,你需要寫一個Stu類,產生set和get方法。
Public Class Stu{ private int id; private String name; public void setId(int id){ this.id=id; } public int getId(){ return this.id; } public void setName(String name){ this.name=name; } public String getName(){ return this.name; }}
寫個簡單的servlet
public class gotoMall extends HttpServlet {public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {ArrayList<Stu> stus=new ArrayList<Stu>();Stu stu1=new Stu();stu1.setId(1);stu1.setName("aa");stu2.setId(2);stu2.setName("bb");stus.add(stu1);stus.add(stu2);request.setAttribute("stus", stus);request.getRequestDispatcher("/WEB-INF/admin/my.jsp").forward(request, response);}public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {this.doGet(request, response);}}
my.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%><!-- 引入jstl標籤庫 --><%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html> <head> <script type="text/javascript" language="javascript" src="js/js_delete.js" charset="gbk"></script> <link href="css/main.css" rel="stylesheet" type="text/css" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>My JSP page</title> </head> <body> LIST:<select> <!-- 前提是已經把stus這個list放到了request.attribute中. 在servlet或action中 request.setAttribute(stus); --> <c:forEach items="${stus}" var="stu"> <!-- Stu類中必須有set和get方法 --> <option>${stu.name}</option> </c:forEach> </select> </body></html>