JSP：如何將對象數組從servlet傳遞到JSP
[英]JSP: How to pass array of object from servlet to JSP
問題描述
如何將對象數組（Mcq [] mcq）從servlet傳遞到JSP？ 如何在jsp中使用taglib從對象數組中提取數據？
類：
public class Mcq {
private String question;
private String choice_1;
private String choice_2;
/* GETTERS AND SETTERS */
}
控制器：
String question, choice_1, choice_2;
Mcq[] mcq = new Mcq[100];
for(int i=0; i<mcqCount; i++){
question = request.getParameter("mcq-question-"+i);
choice_1 = request.getParameter("mcq-choice-"+i);
choice_2 = request.getParameter("mcq-choice-"+i);
mcq[i].setQuestion(question);
mcq[i].setChoice_1(choice_1);
mcq[i].setChoice_2(choice_2);
}
request.getSession().setAttribute("mcq", mcq);
RequestDispatcher dispatcher;
dispatcher = request.getRequestDispatcher("testpage.jsp");
dispatcher.forward(request, response);
HTML（testpage.jsp）：
<body>
<h1>
Question: ${mcq.getQeustion()}
Choice-1: ${mcq.getChoice_1()}
Choice-2: ${mcq.getChoice_2()}
</h1>
</body>
1 個解決方案
解決方案1
0 2014-12-06 19:31:09
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<body>
<h1>
<c:forEach var="mcq" items="${mcq}">
Question: ${mcq.question}
Choice-1: ${mcq.choice_1}
Choice-2: ${mcq.choice_2}
</c:forEach>
</h1>
</body>
EL“ $ {mcq}”表達式應該已經可以獲取Mcq了，因為您已將它們設置為會話屬性。
如何在不具有會話屬性的情況下將對象從jsp頁面傳遞到servlet
[英]How to pass an Object from a jsp page to a servlet without session property
如何在數組中傳遞數組<script> from a JSP page to a Servlet
[英]How to pass an Array in a <script> from a JSP page to a Servlet
聲明:本站的技術帖子網頁，遵循CC BY-SA 4.0協議，如果您需要轉載，請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.