我有一个名为“commande”的bean，属性为“client”和向量“achats”，这个向量用于放置购买的物品。因此，当我调用“achat.html”并输入我的产品名时，他将调用“panier.php”将其放在这个向量上，当我转到“afficherpanier.jsp”时，他打印购买的文章
单击“afficherpanier.jsp”时出错：消息在[enis.commande]类型的bean中找不到任何关于属性[achats]的信息
achat.html
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Achat</title>
</head>
<body>
<form action="http://localhost:8080/AchatEnLigneMVC/Panier" method=GET>
Entrer l'article à acheter : <input type="text" name="achat"/><br>
<input type="submit" value="Valider"/>
</form>
</body>
</html>Commande.java
package enis;
import java.util.Vector;
public class Commande {
String client;
Vector Achats = new Vector();
public String getClient() {
return client;
}
public void setClient(String client) {
this.client = client;
}
public Vector getAchats() {
return Achats;
}
public void setAchats(Vector achats) {
Achats = achats;
}
}
```Panier.java
package enis;
public class Panier extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public Panier() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
HttpSession session = request.getSession(true);
Commande cmd= new Commande();
Vector v = new Vector();
String newitem = request.getParameter("achat");
v.addElement(newitem);
cmd.setAchats(v);
session.setAttribute("commande", cmd);
response.sendRedirect("http://localhost:8080/AchatEnLigneMVC/Achat.html");
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
}
}AfficherPanier.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Afficher Panier</title>
</head>
<body>
<jsp:useBean id="commande" class="enis.Commande" scope="session"/>
<jsp:getProperty property="Achats" name="commande"/>
</body>
</html>
1条答案
按热度按时间whitzsjs1#
请使用java命名约定：
一旦你用小写
achats在bean和jsp标记中，它将工作。而且，不需要初始化
Vector.