很长时间没有写过jsp代码了,今天碰到一个使用jstl froeach循环的问题,
需求是这样的:
每个用户都有多个收货地址,再jsp中将这些用户对应的收货地址展示出来
下面我做的一个小例子
servlet代码:
jsp中的代码
需求是这样的:
每个用户都有多个收货地址,再jsp中将这些用户对应的收货地址展示出来
下面我做的一个小例子
servlet代码:
Address address1 = new Address();
address1.setId(1);
address1.setName("地址1");
address1.setPhone("123");
address1.setPostcode("456");
Address address2 = new Address();
address2.setId(2);
address2.setName("地址2");
address2.setPhone("123");
address2.setPostcode("456");
List list = new ArrayList<Address>();
list.add(address1);
list.add(address2);
User user1 = new User();
user1.setId(1);
user1.setUsername("user1");
user1.setNickname("papa");
user1.setPassword("123123");
user1.setType(4);
user1.setAddresses(list);
User user2 = new User();
user2.setId(1);
user2.setUsername("user2");
user2.setNickname("papa");
user2.setPassword("123123");
user2.setType(4);
user2.setAddresses(list);
List userList = new ArrayList<User>();
userList.add(user2);
userList.add(user1);
request.setAttribute("userList", userList);
RequestDispatcher rd = request.getRequestDispatcher("/index.jsp");
rd.forward(request, response);
jsp中的代码
<c:forEach var="user" items="${userList }">
${user.username }
<ul>
<c:forEach var="addresse" items="${user.addresses}">
<li>${addresse.id }</li>
<li>${addresse.name }</li>
</c:forEach>
</ul>
</c:forEach>