无法使用 asp.net Web 服务将 ajax 标头值传递给我的 Web 服务方法
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【中文标题】无法使用 asp.net Web 服务将 ajax 标头值传递给我的 Web 服务方法【英文标题】：Not able to pass ajax headers value to my web-service method using asp.net web service 【发布时间】：2020-03-24 17:20:09 【问题描述】：下面是我对 Web 服务的 ajax 调用方法，我需要从 ajax Headers 将 auth_key 传递给我的 Web 服务，但现在我正在使用 ajax 数据传递我的 auth_key。但我需要从 Headers 传递。
$.ajax(
type: "GET",
url: base_url + "ongoingtrainingdetails",
data: 'Username':window.localStorage.getItem('auth_key'), //'7EF1590A-29A3-4DD5-885A-5C773480AF91',
timeout: 60000,
dataType: "json",
headers:
"X-Api-Key": localStorage.getItem("auth_key")
,
Complete: function(xhr)
xhr.getResponseHeader("Accept", "json");
,
success: function(res)
console.log(res);
if (res.status === 7)
var html = "<div class='col-xs-12 main-area'> <div class='no-traing-block'> <p clas" +
"s='no-traing-block-icon'> <img src='images/no-training-icon.png'><br>" +
" No ongoing training available </p> </div></div>";
$("#home_page_content").html(html);
SpinnerPlugin.activityStop();
else if (res.status === 0)
console.log(res);
var a = CryptoJS.AES.encrypt(JSON.stringify(res), localStorage.getItem("auth_key"), 256);
localStorage.setItem("res", a);
var d = CryptoJS.AES.decrypt(localStorage.getItem("res"), localStorage.getItem("auth_key")).toString(CryptoJS.enc.Utf8);
var res = JSON.parse(d);
//var res = d;
console.log(res);
console.log(res.data.dStartdate);
var iTrainingId = res.data.iTrainingId;
// localStorage.setItem("dStartdate", res.data.dStartdate);
// localStorage.setItem("dEnddate", res.data.dEnddate);
console.log(res.data.eTrainingMode);
if (res.status === 0)
insertDB(res);
var html = "";
// if (true)
if (res.data.eTrainingMode == "Pending")
html += "<div class='col-xs-12 main-area' > <div class='index-data'> <div clas" +
"s='index-data-row'> <h1><img src='images/current-training-icon.png'>Cu" +
"rrent Training</h1> <p><img src='images/programname-icon.png'>Enrollme" +
"nt ID</p> <h2 id='program_name_homepage'>" + res.data.vUniqueCode + "</h2> <p><img src='images/programname-icon.png'>Program Name</p> " +
" <h2 id='program_name_homepage'>" + res.data.vTrainingName + "</h2> <p><img src='images/krc-name-icon.png'>KRC Name</p> <h" +
"3 id='program_address_homepage'>" + res.data.KRC_name + "</h3> <p><img src='images/map-1.png'>Location</p> <h3 id='pr" +
"ogram_address_homepage'>" + res.data.vDistrict + "," + res.data.vState + "</h3> <p><img src='images/date-icon.png'>From Date</p> <h4 i" +
"d='program_start_homepage'>" + getFormattedDate(res.data.dStartdate) + "</h4> <p><img src='images/date-icon.png'>To Date</p> <h4 id=" +
"'program_end_homepage'>" + getFormattedDate(res.data.dEnddate) + "</h4> </div> <p class='trainer-font'><img src='images/master-train" +
"er-icon.png'>Master Trainer</p> <div class='trainer-row' id='master_train" +
"er'><img src='images/profile-img.png'>" + res.data.vName + "<span id='start_training_home' data-training='" + res.data.iTrainingId + "'>START</span></div> <div id='otherTrainers'></div> </div></div>";
$("#home_page_content").html(html);
SpinnerPlugin.activityStop();
SpinnerPlugin.activityStop();
else if (res.data.eTrainingMode == "Online")
SpinnerPlugin.activityStop();
getCurrentRunningBatch();
else if (res.data.eTrainingMode == "Offline")
SpinnerPlugin.activityStop();
getCurrentRunningBatch();
else
debugger;
alert("reached 4");
var html = "<div class='col-xs-12 main-area'> <div class='no-traing-block'> <p clas" +
"s='no-traing-block-icon'> <img src='images/no-training-icon.png'><br>" +
" No ongoing training available </p> </div></div>";
$("#home_page_content").html(html);
SpinnerPlugin.activityStop();
//navigator.notification.alert(res.message); console.log(res.message);
else
SpinnerPlugin.activityStop();
//navigator.notification.alert(res.message);
,
error: function(xhr, status, err)
console.log(xhr +"hi");
console.log(status + "helo");
console.log(err+"error is");
ErrorHandler(xhr, status, err)
);
下面是我的 asp.net 网络服务
[WebMethod(EnableSession = false)]
[ScriptMethod(UseHttpGet = true, ResponseFormat = ResponseFormat.Json)]//Specify return format.
public void ongoingtrainingdetails(string UserName)
//Context.Response.Write(UserName);
List<Response> listbatch = new List<Response>();
using (SqlConnection con = new SqlConnection(strConn))
SqlCommand cmd = new SqlCommand("App_Service", con);
try
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@Paravalue", "2");
cmd.Parameters.AddWithValue("@value", UserName);
cmd.Parameters.AddWithValue("@value1", "");
cmd.Parameters.AddWithValue("@value2", "0");
cmd.Parameters.AddWithValue("@value3", "0");
con.Open();
SqlDataReader rdr = cmd.ExecuteReader();
while (rdr.Read())
Response res = new Response();
res.status = 0;
res.message = "Welcome To u";
// res.auth_key = rdr["auth_key"].ToString();
Data batch = new Data();
batch.vUniqueCode = rdr["vUniqueCode"].ToString();
batch.vTrainingName = rdr["BatchTitle"].ToString();
batch.dStartdate = rdr["BatchStarDate"].ToString( );
batch.dEnddate = rdr["BatchEndDate"].ToString();
batch.vDistrict = rdr["CityName"].ToString();
batch.vState = rdr["StateName"].ToString();
batch.Address = rdr["Address"].ToString();
batch.TrainerId = int.Parse(rdr["TrainerId"].ToString());
batch.eTrainingMode =rdr["eTrainingMode"].ToString();
batch.vName = rdr["vName"].ToString();
batch.iTrainingId = int.Parse(rdr["vUniqueCode"].ToString());
res.data = batch;
;
listbatch.Add(res);
this.Context.Response.ContentType = "application/json; charset=utf-8";
//string JSONResult = JsonConvert.SerializeObject(listbatch);
javascriptSerializer js = new JavaScriptSerializer() MaxJsonLength = 867530900 ;
string JSONResult = js.Serialize(listbatch);
string FinalJsonstring1 = JSONResult.Replace("[", "");
string FinalJsonstring2 = FinalJsonstring1.Replace("]", "");
Context.Response.Write(FinalJsonstring2);
//string aukey=HttpContext.Current.Request.Headers.Get("auth_key");
cmd.Dispose();
con.Close();
con.Dispose();
catch (Exception ex)
ExceptionLogging.SendErrorToText(ex);
status = ex.GetHashCode().ToString();
message = ex.Message.ToString();
throw new SoapException(ex.Message, SoapException.ServerFaultCode, Context.Request.Url.AbsoluteUri);
finally
cmd.Dispose();
con.Close();
con.Dispose();
//JavaScriptSerializer js = new JavaScriptSerializer() MaxJsonLength = 867530900 ;
//Context.Response.Write(js.Serialize(listbatch));
我需要将 auth_key 从 ajax Headers 传递给我的 web 服务，但现在我正在使用 ajax 数据传递我的 auth_key。但我需要从标头传递。提前致谢
【问题讨论】：
【参考方案1】：使用Request对象和Headers读取请求头，后面可以转换成IEnumerable对象根据key获取值：
C# 代码：
[WebMethod(EnableSession = false)]
[ScriptMethod(UseHttpGet = true, ResponseFormat = ResponseFormat.Json)]
public void ongoingtrainingdetails(string UserName)
SqlCommand cmd = new SqlCommand("App_Service", con);
try
var request = HttpContext.Current.Request;
IEnumerable<string> headers = request.Headers.GetValues("X-Api-Key");
var value = headers.FirstOrDefault();
// Code
catch (Exception ex)
//Code
finally
//Code
【讨论】：
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