Question

我有一个Spring 4 Simple WebApp，由于Ajax get调用，我将页面（.jsp）附加到div中。该页面包含将ModelAttribute定义为显示页面的控制器的形式。例如：

index.jsp

<html>
  <jsp:forward page="home.html"/>
</html>

HomeController.java

@RequestMapping("/home")
public ModelAndView showUsers(@ModelAttribute("User")User u) {
    ModelAndView model = new ModelAndView();
    model.setViewName("/home/home");
    return model;
}

home.jsp

<html>
<head>
<script type="text/javascript">

   function getData() {
        $.ajax({
            type: "GET",
            url: "searchUser.html",
            success: function (result) {
                $('#form').append(result);
            },
            error: function (result) {

            }
        });
    }
}

</script>
<title></title>
</head>
<body>
  <a href="javascript:getData()">click me</a>
  <div class="container">
    <div id="form" />
  </div>

</body>
</html>

UserController.java

@RequestMapping("/searchUser")
public String searchUser(Model model) {
    List<User> uList = userDao.getAllUsers();
    model.addAttribute("u", uList);

    return "formU";
}

formU.jsp

<%@ taglib uri="http://www.springframework.org/tags/form" prefix="form" %>
<%@ taglib uri="http://www.springframework.org/tags" prefix="spring" %>
<form:form method="post" action="modUser.html" modelAttribute="User">
  <form:select path="idUser" items="${u}" itemLabel="name" itemValue="idUser"/>
</form:form>

结果是：

GRAVE: Servlet.service() for servlet spring threw exception
java.lang.IllegalStateException: Neither BindingResult nor plain target 
object for bean name 'Categoria' available as request attribute

如果我在div内对表单进行硬编码，则页面将正确加载。你知道为什么吗？我能解决这个问题吗？谢谢大家

SpringMVC无法识别Ajax显示的表单的ModelAttribute

0 个答案: