.Net Core ValidateAntiForgeryToken引发web api 400错误

您必须在每次请求时发送防伪令牌

 var arr = { City: 'Tehran', Age: 25 };
    $.ajax({
        url: "@Url.Action("SaveAccess", "Access")",
        type: 'POST',
        data: JSON.stringify(arr),
        contentType: 'application/json; charset=utf-8',
        dataType: 'json',
        async: false,
        beforeSend: function (request) {
            request.setRequestHeader("RequestVerificationToken", $("[name='__RequestVerificationToken']").val());
        },
        success: function (msg) {
            alert(msg);
        }
    });

您需要在每个请求上发送AntiForgery令牌,将其验证为cookie或http头。

请参阅 documentation here section 关于如何配置angular js。