$.ajax not calling WebService

本文关键字：WebService calling not ajax | 更新日期: 2023-09-27 18:11:58

我是jquery ajax的新手。我想调用web服务，但不工作。这是我的jquery代码。

$(document).ready(function () {
             $('#TxBx_BasicSalary').focusout(function () {
                 var EmployeeId = $('#Hid_EmpID').val();
                 $.ajax({
                     type: "POST",
                     cache: false,
                     contentType: "application/json; charset=utf-8",
                     url: '/WebService/IncDedWebService.asmx/GetInceDed',
                     data: JSON.stringify({ id: EmployeeId }),
                     dataType: 'json',
                     success: function (data) {
                         alert("")
                     },
                     error: function () { alert("error"); }

                 });
             });

这就是WebService方法。

 [WebMethod]
    [ScriptMethod(UseHttpGet = true, ResponseFormat = ResponseFormat.Json)]
    public string GetInceDed(int id)
    {
        ClsSalary salary = new ClsSalary();
        //var abc  salary=.GetIncDedByEmpId(id);
        var serializer = new JavaScriptSerializer();
        var json = serializer.Serialize(salary.GetIncDedByEmpId(id));
        return json;
    }

当我调用时，这不起作用。它执行错误部分。请帮帮我。我做错了什么。

$.ajax not calling WebService

您还没有发布确切的错误消息，但有几件事需要查找：

  1. 请注意，您已在$.ajax调用中指定了POST，而您的ScriptMethod具有UseHttpGet = true。我假设POST。

  2. 包含Web/Script方法的类必须具有[System.Web.Script.Services.ScriptService]才能从ajax调用(根据asmx代码模板添加的注释(

以下服务器代码适用于我：

[WebService(Namespace = "http://YourNameSpaceGoesHere/")]
[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 IncDedWebService : System.Web.Services.WebService
{
    [WebMethod]
    [ScriptMethod(UseHttpGet = false, ResponseFormat = ResponseFormat.Json)]
    public string GetInceDed(int id)
    {
        ClsSalary salary = new ClsSalary();
        //var abc  salary=.GetIncDedByEmpId(id);
        var serializer = new JavaScriptSerializer();
        var json = serializer.Serialize(new ClsSalary
                                            {
                                              Amount   = 1234,
                                              Id = 123,
                                              Name = "Basic Salary"
                                            });
        return json;
    }
}
public class ClsSalary
{
    public int Id { get; set; }
    public string Name { get; set; }
    public decimal Amount { get; set; }
}

返回的json是：

{"d":"{'"Id'":123,'"Name'":'"Basic Salary'",'"Amount'":1234}"}

尝试这些更改：

$(document).ready(function () {
             $('#TxBx_BasicSalary').focusout(function () {
                 var EmployeeId = $('#Hid_EmpID').val();
             $.ajax({
                 type: "POST",
                 cache: false,
                 contentType: "application/json; charset=utf-8",
                 url: '/WebService/IncDedWebService.asmx/GetInceDed',
                 data: '{ "id": "' + EmployeeId + '" }', //THIS LINE
                 dataType: 'json',
                 success: function (data) {
                     var emp = $.toJson(data.d); //THIS
                     alert(emp.IncDeb.EmpID); //AND THIS
                 },
                 error: function () { alert("error"); }

             });
         });

这就是WebService方法。

[WebMethod]
    [ScriptMethod(UseHttpGet = true, ResponseFormat = ResponseFormat.Json)]
    public string GetInceDed(int id)
    {
        ClsSalary salary = new ClsSalary();
        var abc  salary=.GetIncDedByEmpId(id);
        string json = "{'"IncDeb'":['"EmpId'":'"" + abc.EmpId +"'"]"; //And you have to keep going with the other members  
        return json;
    }
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