无效的Web服务调用，缺少值参数 [英] Invalid web service call, missing value for parameter

问题描述

我一直在寻找这一段时间并不能看到问题的所在。任何帮助是极大的AP preciated。

I have been looking at this for a while and can't see where the problem is. Any help is greatly appreciated.

[WebMethod(true)]
[ScriptMethod(UseHttpGet = true, ResponseFormat = ResponseFormat.Json)]
public static string neighbourhoodTeam(string force, string neighbourhood) 
{
    //StreamManager streamMan = new StreamManager();
    //return streamMan.StreamManagerUrlHandler("http://policeapi2.rkh.co.uk/api/" + force + "%2F" + neighbourhood + "%2F" + "people");
    return neighbourhood + force;
}

jQuery的：

jQuery:

function getOfficers(force, neighbourhood) {
    $.ajax({
        type: "GET",
        contentType: "application/json; charset=utf-8",
        url: "../police/crimerequest.aspx/neighbourhoodTeam",
        data: JSON.stringify({ "force": force, "neighbourhood": neighbourhood }),
        dataType: "json",
        success: function (data) {
            var results = $.parseJSON(data.d);
            $.each(results, function (i) {
                businessCards.push(generateOfficerBusinessCard(
                            results[i].name,
                            results[i].rank,
                            results[i].contact_details.mobile,
                            results[i].contact_details.tel,
                            results[i].contact_details.email))
            });
            PoliceApp.businessCardsPlaceHolder.html(businessCards.toString());
        },
        error: function (xhr, ajaxOptions, thrownError) {
            alert(xhr.status);
            alert(thrownError);
            alert(xhr.responseText);
            return false;
        }
    });
}

和我得到： {消息：无效的Web服务调用，缺少值参数：\ u0027force \ u0027，堆栈跟踪：

推荐答案

试着用发过程数据：假在阿贾克斯PARAMS。 jQuery将默认情况下再次字符串化。

Try sending with processData: false in your ajax params. jQuery will stringify again by default.

使用小提琴手或类似工具来检查网络流量，看看是越来越实际发送到Web服务。

Use fiddler or similar tool to inspect network traffic and see what is getting actually sent to your web service.

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