jquery - parseJSON 未捕获语法错误 : Unexpected token u

Question

这个问题已经让我有点抓狂了几个多小时了。我现在读了很多帖子和文章，对问题的了解很模糊，但不知道原因。我意识到问题是当我在 undefined object 上提交类似 JSON.parse 的内容时。我不明白为什么会这样。我确信它非常简单，而且我确信一旦它被指出，我就会感觉到它是一个工具，但现在如果它解决了问题，我不介意感觉有点傻。

问题是，当我使用以下方法提交表单时，出现以下错误:

Uncaught SyntaxError: Unexpected token u js:1
i.extend.parseJSON js:1
c js:1
u js:1
n.extend.showLabel js:1
n.extend.defaultShowErrors js:1
n.extend.showErrors js:1
n.extend.form js:1
n.extend.valid js:1
(anonymous function)
i.event.dispatch js:1
y.handle

此外，当我将光标从一个字段移动到另一个字段时，我收到此错误:

Uncaught SyntaxError: Unexpected token u js:1
i.extend.parseJSON js:1
c js:1
u js:1
n.extend.showLabel js:1
n.extend.defaultShowErrors js:1
n.extend.showErrors js:1
n.extend.element js:1
n.extend.defaults.onfocusout js:1
r js:1
(anonymous function) js:1
i.event.dispatch js:1
y.handle js:1
i.event.trigger js:1
i.event.simulate js:1
f

这显然阻止我将表单提交给 Controller 进行处理。该错误似乎来自 jquery 库(第 498 行)，当它尝试执行以下操作时: return n.JSON.parse(t); (t 未定义)。我正在使用 jquery 1.9.1、bootstrap 2.2.2 和 jqValidate/1.9.0.unobtrusive.js。该表单处于引导模式，如下所示:

@model AModelTestApp.Models.UserModel

<div class="modal-header">
    <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
    <h3>User</h3>
</div>

<div class="modal-body">

    @{
        var ajaxOptions = new AjaxOptions
            {
                HttpMethod = "POST",
                OnComplete = "Complete"
            };
    }

    @using (Ajax.BeginForm("EditUser", "Home", ajaxOptions, new { id = "userform" }))
    {
        <div class="row-fluid">
            <div class="span12">
                @Html.ValidationSummary("Ooops..", new { id = "validateuser", @class = "alert alert-error" })
            </div>
        </div>

        <div class="row-fluid">
            <div class="span6">
                @Html.LabelFor(m => m.Id)
                @Html.TextBoxFor(m => m.Id)

                @Html.LabelFor(m => m.Username)
                @Html.TextBoxFor(m => m.Username)

                @Html.LabelFor(m => m.FirstName)
                @Html.TextBoxFor(m => m.FirstName)

                @Html.LabelFor(m => m.LastName)
                @Html.TextBoxFor(m => m.LastName)
            </div>
            <div class="span6">
                @Html.LabelFor(m => m.Email)
                @Html.TextBoxFor(m => m.Email)

                @Html.LabelFor(m => m.UserTypeId)
                @Html.TextBoxFor(m => m.UserTypeId)

                @Html.LabelFor(m => m.Created)
                @Html.TextBoxFor(m => m.Created)

                @Html.LabelFor(m => m.Active)
                @Html.CheckBoxFor(m => m.Active)
            </div>
        </div>
        <div class="row-fluid">
            <div class="span1 offset10">
                <a id="btnclear" class="btn" href="#">Clear</a>
            </div>
        </div>
    }

</div>

<div class="modal-footer">
    <a class="btn" data-dismiss="modal" href="#">Close</a>
    <a id="btnsubmit" class="btn btn-info" href="#">Submit</a>
</div>

<script type="text/javascript">
    $.validator.unobtrusive.parse($('#userform'));

    $('#btnclear').click(function() {
        $('input').val('');
        $(':checkbox').prop('checked', false);
        return false;
    });

    $('#btnsubmit').click(function () {

        $('#userform').validate();
        if ($('#userform').valid()) {
            $('#userform').submit();
        } else {
            alert("Something went wrong with the validation")
        }

    });

    function Complete(result) {
        alert("Woooo - " + result);
    }
</script>

模态加载如下:

<div class="row-fluid">
    <div class="span12">
        <button id="btnclick" class="btn btn-large btn-block btn-primary">Click Me</button>
    </div>
</div>

<div id="mainmodal" class="modal hide fade"></div>

<script type="text/javascript">
    $('#btnclick').click(function () {
        $.ajax({
            url: '@Url.Action("GetUser", "Home")',
            type: 'GET',
            success: function (result) {
                //awss.modal.popup(result);
                $('#mainmodal').html(result);
                $('#mainmodal').modal('show');
            }
        });
        return;
    });
</script>

从此 Controller :

    public ActionResult GetUser()
    {
        var user = new UserModel
            {
                Id = 1,
                Username = "sbody",
                FirstName = "Some",
                LastName = "Body",
                Email = "sbody@domain.com",
                UserTypeId = 6,
                Created = new DateTime(2013, 1, 1),
                Active = true
            };
        return PartialView("EditUser", user);
    }

ClientValidationEnabled 和 UnobtrusiveJavaScriptEnabled 均在 web.config 中启用。我希望这只是我关注同一问题太久而看不到明显问题的情况。非常感谢任何帮助。谢谢:)

Answer 1

您可以尝试以下操作吗

'$.parseJSON(result)' 

在 ajax 成功函数中使用 parsejson。