问题描述
我使用 ajax 调用将一些表单数据传递到 json 格式的处理程序中,但 ajax 不起作用。 我已经使用 $('form').serializeArray() 从表单数据传递数据,并使用 ajax 调用传递数据。在这种情况下,我传递了静态数据,但 ajax 调用仍然不起作用。
这是 jQuery 代码。
function SessionLogAutoSave() {
var sendInfo =
{
"ctl00$Header1$cbo_Practice": "ea2aae16-a7f9-4e75-82b5-d2c231c97cf6","ctl00$cph_MainContent$OFTAddRecord$hdnUrl": "","ctl00$cph_MainContent$hdnSessionId": "yyuicdueevmdeynp2q12mrb1","ctl00$cph_MainContent$hdnPracticeId": "870ee142-eb27-4d37-bba2-061fa5f801e3","ctl00$cph_MainContent$hdnRecordId": "","ctl00$cph_MainContent$hdnUserId": "d220da1a-d855-4f90-b8db-a84bc5ba8f51","ctl00$cph_MainContent$txt_Name": "","ctl00$cph_MainContent$txt_Address": "","ctl00$cph_MainContent$txt_ContactNumber": "","ctl00$cph_MainContent$cbo_ComplaintBy": "1","ctl00$cph_MainContent$cbo_ComplaintReceivedBy": "83beebf4-e6ea-49b3-a64f-ed20f755afdd","ctl00$cph_MainContent$cbo_PersonHandlingComplaint": "83beebf4-e6ea-49b3-a64f-ed20f755afdd","ctl00$cph_MainContent$cbo_Type": "1","ctl00$cph_MainContent$txt_ComplaintReceivedOn": "","ctl00$cph_MainContent$txt_ComplaintReceivedOn$dateInput": "","ctl00_cph_MainContent_txt_ComplaintReceivedOn_calendar_SD": "[]","ctl00_cph_MainContent_txt_ComplaintReceivedOn_calendar_AD": "[[1980,1,1],[2099,12,30],[2021,4,22]]","ctl00_cph_MainContent_txt_ComplaintReceivedOn_dateInput_ClientState": "{\"enabled\":true,\"emptyMessage\":\"\",\"validationText\":\"\",\"valueAsstring\":\"\",\"minDateStr\":\"1980-01-01-00-00-00\",\"maxDateStr\":\"2099-12-31-00-00-00\",\"lastSetTextBoxValue\":\"\"}","ctl00_cph_MainContent_txt_ComplaintReceivedOn_ClientState": "","ctl00$cph_MainContent$txt_DateFollowup": "","ctl00$cph_MainContent$txt_DateFollowup$dateInput": "","ctl00_cph_MainContent_txt_DateFollowup_calendar_SD": "[]","ctl00_cph_MainContent_txt_DateFollowup_calendar_AD": "[[1980,"ctl00_cph_MainContent_txt_DateFollowup_dateInput_ClientState": "{\"enabled\":true,"ctl00_cph_MainContent_txt_DateFollowup_ClientState": "","ctl00$cph_MainContent$txt_DetailsComplaint": "","ctl00$cph_MainContent$txt_Followup": "","ctl00$cph_MainContent$txt_DateActionTaken": "","ctl00$cph_MainContent$txt_DateActionTaken$dateInput": "","ctl00_cph_MainContent_txt_DateActionTaken_calendar_SD": "[]","ctl00_cph_MainContent_txt_DateActionTaken_calendar_AD": "[[1980,"ctl00_cph_MainContent_txt_DateActionTaken_dateInput_ClientState": "{\"enabled\":true,"ctl00_cph_MainContent_txt_DateActionTaken_ClientState": "","ctl00$cph_MainContent$txt_DateOutcome": "","ctl00$cph_MainContent$txt_DateOutcome$dateInput": "","ctl00_cph_MainContent_txt_DateOutcome_calendar_SD": "[]","ctl00_cph_MainContent_txt_DateOutcome_calendar_AD": "[[1980,"ctl00_cph_MainContent_txt_DateOutcome_dateInput_ClientState": "{\"enabled\":true,"ctl00_cph_MainContent_txt_DateOutcome_ClientState": "","ctl00$cph_MainContent$txt_ActionTaken": "","ctl00$cph_MainContent$txt_Outcome": "","ctl00$cph_MainContent$rbtndiscussed": "0","ctl00$cph_MainContent$cbo_Status": "1","ctl00$cph_MainContent$hid_Id": "","ctl00$cph_MainContent$hdnAttachments": "","ctl00$cph_MainContent$hdnFileNames": "","ctl00$cph_MainContent$cbo_Months": "4","ctl00$cph_MainContent$cbo_Years": "2021"
};
jQuery.ajax({
url: 'Handlers/SaveSessionLogAutoSave.ashx',data: 'FormData=' + JSON.stringify(sendInfo) + '',contentType: 'application/json;utf-8',dataType: 'json',type: 'GET',cache: false,success: function (data) {
// you can make a tiny notification here
return;
},error: function (responseText,textStatus,XMLHttpRequest) {
return;
}
});
}
我使用处理程序来检索数据。我的处理程序代码是
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
namespace DentalCompliance.Handlers
{
/// <summary>
/// Summary description for SaveSessionLogAutoSave
/// </summary>
public class SaveSessionLogAutoSave : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
string method = context.Request["FormData"];
context.Response.ContentType = "text/plain";
context.Response.Write("Hello World");
//}
}
public bool IsReusable
{
get
{
return false;
}
}
}
}
我在互联网上搜索,经过 1 天的搜索,我还没有找到任何解决方案。
解决方法
将您的代码更改为:
internal static async Task<string> GetDeviceIdFromMachineName(string machineName)
{
try
{
var client = GetBetaClientUsernamePassword();
if(client != null)
{
var device = (await client.Devices.Request().Filter($"displayName eq '{machineName}'").WithUsernamePassword(<Username>,<Password>).GetAsync()).FirstOrDefault();
if (device == null)
{
return "No matching device found";
}
return device.DeviceId;
}
return "Error creating Graph client: client was null";
}
catch(Exception ex)
{
// do some logging
return $"Error querying for device: {ex.Message}";
}
}
更改了两件事:1. 请求类型从 GET 到 POST 因为当我们使用 GET 时,您发送的数据会附加到到 URL 并且您发送的数据过多,超出了应用程序中允许的 URL 长度。 2. 删除了 contentType,因为您没有发送 JSON。