Question

我认为我的语法是正确的，但我的表格支持对象中的列表没有填充。它看起来像列表本身，只是它没有元素。正在按预期填充其他属性。有什么想法吗？

JSP：

<form:form method="post" commandName="addReminder">
    Reminder Name <input type='text' name='reminderName' placeholder="Reminder Name"> <br />
    Date          <input type='text' name='date' placeholder="1/05/2013"> <br />
    Time          <input type='text' name='time' placeholder="4:00 PM"> <br />
    Time Zone     <input type='text' name='timeZone' placeholder="EDT"> <br />
    <br />
    Contacts    <input type='text' path="contacts[0].phoneNumber" placeholder="Name"> <br />
                <input type='text' path="contacts[1].phoneNumber" placeholder="Name"> <br />

                <input type="submit" value = "Add Reminder">
</form:form>

控制器：

    @RequestMapping(value = "/AddAReminder", method = RequestMethod.POST)
public String addReminder(@ModelAttribute("addReminder") AddReminder reminder, BindingResult result)
{
            //does stuff with the data from the form backing object

    return "Add A Reminder";
}

表格支持对象：

public class AddReminder
{
private String reminderName;
private String date;
private String time;
private String timeZone;
private ArrayList<Contact> contacts = new ArrayList<Contact>();
private String sentFrom;
private String message;
private String provider;

//getters and setters

联络对象：

public class Contact
{
private String firstName;
private String lastName;
private String phoneNumber;
private String provider;

//getters and setters

Answer 1

您可以将<c:forEach>用作：

<form:form method="post" commandName="allProductEdit">
   <c:forEach items="${allProductEdit.products}" var="prod" varStatus="pStatus">
      <form:input path="products[${pStatus.index}].description" />
      <form:input path="products[${pStatus.index}].price" />
   </c:forEach>
   <input type="submit" value="Execute">
</form:form>

点击此论坛链接http://forum.springsource.org/showthread.php?54509-lt-form-input-gt-inside-lt-c-forEach-gt

Answer 2

好的，我知道我做了什么改变才能让它发挥作用。我在GET请求上使用Contact对象初始化列表。我说initalize，但我的意思是我只是在列表中添加一个元素，所以它不是空的。列表本身已在AddReminder类中初始化。然后Spring将自动增加列表。

Spring 3绑定对象列表

2 个答案: