如何在Ajaxpost ASP.NETMVC中包含防伪造令牌?

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AntiForgeryToken与ajax有问题。我正在使用ASP.NET MVC 3.我在jQuery Ajax调用和Html.AntiForgeryToken()中尝试了解决方案。使用该解决方案,令牌现在正在传递:

var data = { ... } // with token, key is '__RequestVerificationToken'

$.ajax({
        type: "POST",
        data: data,
        datatype: "json",
        traditional: true,
        contentType: "application/json; charset=utf-8",
        url: myURL,
        success: function (response) {
            ...
        },
        error: function (response) {
            ...
        }
    });

当我[ValidateAntiForgeryToken]为了查看数据(带有令牌)是否作为参数传递给控制器​​而删除属性时,我可以看到它们正在被传递。但是由于某种原因,A required anti-forgery token was not supplied or was invalid.当我放回属性时,该消息仍然弹出。

有任何想法吗?

反伪造令牌是在表单内生成的,但我没有使用提交操作来提交它。相反,我只是使用jquery获取token的值,然后尝试ajax post。

这是包含令牌的表单,位于顶级主页面:

<form id="__AjaxAntiForgeryForm" action="#" method="post">
    @Html.AntiForgeryToken()
</form>
提问于
用户回答回答于

错误地指定contentTypeapplication/json

这是一个如何工作的例子。

控制器:

public class HomeController : Controller
{
    public ActionResult Index()
    {
        return View();
    }

    [HttpPost]
    [ValidateAntiForgeryToken]
    public ActionResult Index(string someValue)
    {
        return Json(new { someValue = someValue });
    }
}

视图:

@using (Html.BeginForm(null, null, FormMethod.Post, new { id = "__AjaxAntiForgeryForm" }))
{
    @Html.AntiForgeryToken()
}

<div id="myDiv" data-url="@Url.Action("Index", "Home")">
    Click me to send an AJAX request to a controller action
    decorated with the [ValidateAntiForgeryToken] attribute
</div>

<script type="text/javascript">
    $('#myDiv').submit(function () {
        var form = $('#__AjaxAntiForgeryForm');
        var token = $('input[name="__RequestVerificationToken"]', form).val();
        $.ajax({
            url: $(this).data('url'),
            type: 'POST',
            data: { 
                __RequestVerificationToken: token, 
                someValue: 'some value' 
            },
            success: function (result) {
                alert(result.someValue);
            }
        });
        return false;
    });
</script>
用户回答回答于

另一个(更少的javascripty)方法,就像我做的那样,如下所示:

首先,HTML助手

public static MvcHtmlString AntiForgeryTokenForAjaxPost(this HtmlHelper helper)
{
    var antiForgeryInputTag = helper.AntiForgeryToken().ToString();
    // Above gets the following: <input name="__RequestVerificationToken" type="hidden" value="PnQE7R0MIBBAzC7SqtVvwrJpGbRvPgzWHo5dSyoSaZoabRjf9pCyzjujYBU_qKDJmwIOiPRDwBV1TNVdXFVgzAvN9_l2yt9-nf4Owif0qIDz7WRAmydVPIm6_pmJAI--wvvFQO7g0VvoFArFtAR2v6Ch1wmXCZ89v0-lNOGZLZc1" />
    var removedStart = antiForgeryInputTag.Replace(@"<input name=""__RequestVerificationToken"" type=""hidden"" value=""", "");
    var tokenValue = removedStart.Replace(@""" />", "");
    if (antiForgeryInputTag == removedStart || removedStart == tokenValue)
        throw new InvalidOperationException("Oops! The Html.AntiForgeryToken() method seems to return something I did not expect.");
    return new MvcHtmlString(string.Format(@"{0}:""{1}""", "__RequestVerificationToken", tokenValue));
}

,它将返回一个字符串。

__RequestVerificationToken:"P5g2D8vRyE3aBn7qQKfVVVAsQc853s-naENvpUAPZLipuw0pa_ffBf9cINzFgIRPwsf7Ykjt46ttJy5ox5r3mzpqvmgNYdnKc1125jphQV0NnM5nGFtcXXqoY3RpusTH_WcHPzH4S4l1PmB8Uu7ubZBftqFdxCLC5n-xT0fHcAY1"

所以我们可以这样用它

$(function () {
    $("#submit-list").click(function () {
        $.ajax({
            url: '@Url.Action("SortDataSourceLibraries")',
            data: { items: $(".sortable").sortable('toArray'), @Html.AntiForgeryTokenForAjaxPost() },
            type: 'post',
            traditional: true
        });
    });
});

而且看起来很管用!

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