自动完成内部服务器500

Question

这是我的视图页面，其中包含我的脚本，这是我声明我的自动完成脚本和我的脚本，我从Web服务获取信息

@model IEnumerable<BarclaysApp.Models.Stadiums>

@section Scripts
           {


    <script src="~/jquery-ui.js"></script>
    <link href="~/jquery-ui.css" rel="stylesheet" />
    <script type="text/javascript">
        $(function () {
            $("#SearchString").autocomplete({
                source: '@Url.Action("AutocompleteSuggestions")',
                minLength: 1,
                select: function (event, ui) {
                    if (ui.item) {
                        $("#SearchString").val(ui.item.value);
                        $("#ResultsDiv").submit();
                    }
                }
            });
        });


        function DoSearch() {
            $("#resultsDiv").html("");
            var key = { "key": $("#searchString").val() };
            $.ajax({
                type: "POST",
                contentType: "application/json; charset=utf-8",
                url: "/Stadium.asmx/GetStadiumByName",
                data: JSON.stringify(key),
                dataType: "json",
                async: true,
                success: function (result, textStatus) {
                    if (textStatus == "success") {
                        for (var i = 0; i < result.d.length; i++) {
                            $("#resultsDiv").html($("#resultsDiv").html() + result.d[i] + "<br/>");
                        }
                    }
                },
                error: function (result, status, error) {
                    $("#resultsDiv").html("Error: " + error + " <br/>")
                }
            });
        }
    </script>


}

@{
    ViewBag.Title = "Index";
}

<h2>Stadiums</h2>

<div class="jumbotron">

    <div>
        <input id="SearchString" type="text" placeholder="Stadium" />
        <input type="button" value="Search" onclick="DoSearch();" />
    </div>
    <div id="resultsDiv"></div>

    <p>
        @Html.ActionLink("Create New", "Create")
    </p>

    <table class="table">
        <tr>
            <th>
                @Html.DisplayNameFor(model => model.Capacity)
            </th>
            <th>
                @Html.DisplayNameFor(model => model.Name)
            </th>
            <th>
                @Html.DisplayNameFor(model => model.Team)
            </th>
            <th>
                @Html.DisplayNameFor(model => model.Location)
            </th>
            <th></th>
        </tr>

        @foreach (var item in Model)
        {
            <tr>
                <td>
                    @Html.DisplayFor(modelItem => item.Capacity)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.Name)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.Team)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.Location)
                </td>
                <td>
                    @Html.ActionLink("Edit", "Edit", new { id = item.stadiumID }) |
                    @Html.ActionLink("Details", "Details", new { id = item.stadiumID }) |
                    @Html.ActionLink("Delete", "Delete", new { id = item.stadiumID })
                </td>
            </tr>
        }

    </table>
</div>

这是我的webservice文件，这是我的get方法用于显示用户搜索的体育场

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
using BarclaysApp.Models;

namespace BarclaysApp
{
    /// <summary>
    /// Summary description for Stadium
    /// </summary>
    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [System.ComponentModel.ToolboxItem(false)]
    // To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. 
     [System.Web.Script.Services.ScriptService]
    public class Stadium : System.Web.Services.WebService
    {
        private ApplicationDbContext db = new ApplicationDbContext();
        [WebMethod]
        public string[] GetStadiumsByName(string term)
        {

            List<string> stadiumlist = new List<string>();
            if (term != "")
            {
                foreach (var Name in db.Stadiums
                                        .Where(a => a.Name.Contains(term))
                                        .ToList())
                {
                   stadiumlist.Add(Name.Name);
                }
            }

            return stadiumlist.ToArray();
        }
    }
}

我的自动完成工作正常，但当我去搜索时，我得到错误：内部服务器错误500

Answer 1

尝试将AJAX请求的类型更改为GET。好的做法是建议GET用于读取数据，POST用于将信息（写入操作）发送到服务器。