Question

当前，我正在编写一个Web应用程序，以从数据库中提取数据并使用Google图表动态显示。当我启动网站时，我在尝试发布时收到错误消息，并留下以下错误消息：

这是我的代码：

这是.aspx文件：

<%@ Page Title="" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="GoogleChart.aspx.cs" Inherits="GoogleChartsWebForm.GoogleChart" %>

<asp:Content ID="Content1" ContentPlaceHolderID="HeadContent" runat="server">
    <script src="Scripts/jquery-3.3.1.js"></script>
    <script type="text/javascript" src="https://www.google.com/jsapi"></script>

    <script>
        var chartData; //Global Var For Data
        google.load("visualization", "1", { packages: ["corechart"]});

        //Fill Chart Data



        $(Document).ready(function () {
            $.ajax({
                url: "GoogleChart.aspx/GetChartData",
                data: "",
                dataType: "json",
                type: "POST",
                contentType: "application/json; chartset=utf-8",
                success: function (data) {
                    chartData = data.d;
                },
                error: function () {
                    alert("Error loading Data! Please Try again!");
                }
            }).done(function () {
                //after complete loading data
                drawChart();
            });
        });


        function drawChart() {
            var data = google.visualzation.arrayToDataTable(chartData);

            var options = {
                title: "Chart",
                pointSize: 5
            };
            var lineChart = new google.visualization.LineChart(document.getElementById('chart_div'));
            lineChart.draw(data, options);
        }

    </script>
</asp:Content>

<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
    <div id="chart_div" style="width: 800px; height: 400px;">
        <%-- GoogleCharts WebForm Will Load Here --%>
    </div>
</asp:Content>

这是.aspx.cs文件

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Script.Services;
using System.Web.Services;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace GoogleChartsWebForm
{
    public partial class GoogleChart : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }
        [WebMethod]
        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
        public static object[] GetChartData()
        {
            List<Table> data = new List<Table>();
            //Here DB ENTITY is our DB context
            using(DataBaseEntities dc = new DataBaseEntities())
            {
                data = dc.Tables.ToList();
            }
            var chartData = new object[data.Count + 1];
            chartData[0] = new object[]
            {
                "Month",
                "TotalSales"
            };

            int j = 0;
            foreach (var i in data)
            {
                j++;
                chartData[j] = new object[] { i.Month, i.TotalSales };
            }
            return chartData;
        }
    }
}

我看不到有任何问题。我认为该错误可能是在尝试访问数据库时出现的。我对ASP.Net相当陌生，因此向您寻求帮助。对不起，这似乎是个问题。

Answer 1

要解决此问题，我只是这样做了：

在~/App_Start/RouteConfig.cs内部进行的更改：

settings.AutoRedirectMode = RedirectMode.Permanent;

收件人：

settings.AutoRedirectMode = RedirectMode.Off;

来源：https://stackoverflow.com/a/23037758/9962623

响应代码：Asp .NET Web表单上的401

1 个答案: