ASMX似乎要缓存

时间:2011-04-13 11:34:52

标签: c# ajax web-services

我有以下ASMX网络服务:

// removed for brevity //

namespace AtomicService
{
    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [System.ComponentModel.ToolboxItem(false)]
    [ScriptService]
    public class Assets : WebService
    {
        private static readonly ILog Log = LogManager.GetLogger(typeof(Validation));
        [WebMethod]
        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
        public string CityCreate(string cityname, string state, string country,
            decimal timezoneoffset, decimal lat, decimal lon)
        {
            var response = new Dictionary<string, string>();
            if(string.IsNullOrEmpty(cityname) || (string.IsNullOrEmpty(country)))
            {
                response.Add("Response", "empty");
                return JsonConvert.SerializeObject(response, Formatting.Indented);
            }
            int tzid;
            int ctyid;
            try
            {
                tzid = AtomicCore.TimezoneObject.GetTimezoneIdByGMTOffset(timezoneoffset);
                var cty = AtomicCore.CountryObject.GetCountry(country);
                ctyid = cty.CountryId;
            }
            catch (Exception)
            {
                response.Add("Response", "errordb");
                return JsonConvert.SerializeObject(response, Formatting.Indented);
            }
            if(AtomicCore.Validation.DoesCityAlreadyExistByLatLon(cityname, country, lat, lon))
            {
                response.Add("Response", "exists");
                return JsonConvert.SerializeObject(response, Formatting.Indented);
            }
            const string pattern = @"^(?<lat>(-?(90|(\d|[1-8]\d)(\.\d{1,6}){0,1})))\,{1}(?<long>(-?(180|(\d|\d\d|1[0-7]\d)(\.\d{1,6}){0,1})))$";
            var check = new Regex(pattern, RegexOptions.IgnorePatternWhitespace);
            bool valid = check.IsMatch(lat + "," + lon);
            if(valid == false)
            {
                response.Add("Response", "badlatlon");
                return JsonConvert.SerializeObject(response, Formatting.Indented);
            }
            BasicConfigurator.Configure();
            Log.Info("User created city; name:" + cityname + ", state:" + state + ", countryid:" + ctyid + ", timezoneid:" + tzid + ", lat:" + lat + ", lon:" + lon + "");

            //will return id of created city or 0.
            var result = AtomicCore.CityObject.CreateCity(cityname, state, ctyid, tzid, lat.ToString(), lon.ToString(), string.Empty);
            response.Add("Response", result > 0 ? "True" : "errordb");
            return JsonConvert.SerializeObject(response, Formatting.Indented);
        }
    }
}

这是由JQuery $.ajax调用调用的:

$.ajax({
                            type: "POST",
                            url: "http://<%=Atomic.UI.Helpers.CurrentServer()%>/AtomicService/Assets.asmx/CityCreate",
                            data: "{'cityname':'" + $('#<%=litCity.ClientID%>').val() + "','state':'" + $('#<%=litState.ClientID%>').val() + "','country':'<%=Session["BusinessCountry"]%>','timezoneoffset':'" + $('#<%=litTimezone.ClientID%>').val() + "','lat':'" + $('#<%=litLat.ClientID%>').val() + "','lon':'" + $('#<%=litLng.ClientID%>').val() + "'}",
                            contentType: "application/json",
                            dataType: "json",
                            success: function (msg) {
                                if (msg["d"].length > 0) {
                                    var data = $.parseJSON(msg.d);
                                    if (data.Response > 0) {
                                        //everything has been saved, ideally we
                                        //want to get the cityid and pass it back
                                        //to the map page so we can select it...
                                        alert('Hazzah!');
                                        $(this).dialog('close');
                                    } else {
                                        if(data.Response == 'errordb')
                                        {
                                            alert("db");
                                        }
                                        if(data.Response == 'exists')
                                        {
                                            alert("exists");
                                        }
                                        if(data.Response == 'badlatlon')
                                        {
                                            alert("badlatlon");
                                        }
                                        if(data.Response == 'empty')
                                        {
                                            alert("empty");
                                        }

                                        $('#serviceloader').hide();
                                        $('#<%=txtFindMyCity.ClientID%>:input').attr('disabled', false);
                                        $('#erroroccured').show('slow');
                                        $('#errortext').html("Unfortunately, we can't save this right now. We think this city may already exist within Atomic. Could you please check carefully and try again? If this is an obvious error, please contact us and we'll get you started.");
                                    }
                                } else {
                                    $('#serviceloader').hide();
                                    $('#<%=txtFindMyCity.ClientID%>:input').attr('disabled', false);
                                    $('#erroroccured').show('slow');
                                    $('#errortext').html("Unfortunately, we can't save this right now. Our data service is not responding.  Could you perhaps try again in a few minutes? We're very sorry. Please contact us if this continues to happen.");
                                }
                            },
                            error: function (msg) {
                                $('#serviceloader').hide();
                                $('#<%=txtFindMyCity.ClientID%>:input').attr('disabled', false);
                                $('#erroroccured').show('slow');
                                $('#errortext').html("Unfortunately, we can't save this right now. Perhaps something has gone wrong with some of our data services. Why not try again? If the problem persists, please let us know and we'll get you started.");
                            }
                        });

尽管如此,我总是收到{ "Response" : "False" }。我认为这可能是一个缓存问题 - 但我根本无法让AJAX运行该服务。当我直接转到asset.asmx并调用服务时,CreateCity方法正确运行。

这是树木的经典木材 - 我看了太久了,我放弃了生活的意愿......

因此,问题是:我希望CreateCity服务在$.ajax调用时正常工作,并且不会收到{ "Response" : "False" }响应。任何人都可以提供任何指导,帮助或协助如何使用我提供的代码实现这一目标?请记住,我相信我的服务可能是缓存(因此{ "Response" : "False" }响应)......

欢迎提供帮助,建议,火焰和一般性意见......

2 个答案:

答案 0 :(得分:1)

您无需手动JSON序列化响应。这由启用脚本的服务自动处理。只需从Web方法返回强类型对象即可。输入相同。此外,您必须确保正确URL编码请求参数。首先定义模型:

public class City
{
    public string Cityname { get; set; }
    public string State { get; set; }
    public string Country { get; set; }
    public decimal Timezoneoffset { get; set; }
    public decimal Lat { get; set; }
    public decimal Lon { get; set; }
}

public class Response
{
    public string Message { get; set; }
    public bool IsSuccess { get; set; }
}

然后:

[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
[ScriptService]
public class Assets : WebService
{
    private static readonly ILog Log = LogManager.GetLogger(typeof(Validation));

    [WebMethod]
    [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
    public Response CityCreate(City city)
    {
        var response = new Response();

        // ... process and populate the return message, 
        // set the IsSuccess boolean property which will
        // be used by the client (see next...)

        return response;
    }
}

并在客户端:

$.ajax({
    type: 'POST',
    url: '<%= ResolveUrl("~/Assets.asmx/CityCreate") %>',
    contentType: 'application/json',
    dataType: 'json',
    data: JSON.stringify({ 
        cityname: $('#<%=litCity.ClientID%>').val(),
        state: $('#<%=litState.ClientID%>').val(),
        country: '<%=Session["BusinessCountry"]%>',
        timezoneoffset: $('#<%=litTimezone.ClientID%>').val(),
        lat: $('#<%=litLat.ClientID%>').val(),
        lon: $('#<%=litLng.ClientID%>').val()
    }),
    success: function (result) {
        // result.d will represent the response so you could:
        if (result.d.IsSuccess) {
             ...
        } else {
             ...
        }
    };
});

答案 1 :(得分:0)

您可以将cache:false添加到%.ajax来电,以确保其未被缓存。你有没有在服务上弹出一个断点来仔细检查你的jQuery传递了什么?