Question

我有一个asp.net Web服务，我想通过Jquery Ajax调用但是在Executing我得到500 Internal Server Error而在Response中我得到{"Message":"Invalid JSON primitive: Name.","StackTrace":"看到Browser Developer工具中的输出（萤火虫）。这是我的Webservice代码..

[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
// 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 DateWebService : System.Web.Services.WebService {

HttpRequest request;

public DateWebService () {

    //Uncomment the following line if using designed components 
    //InitializeComponent(); 
}

[WebMethod]
public string GetData(string name, string contact, string email) {

    string Name = request[name];
    string Contact = request[contact];
    string Email = request[email];

    return Name+Contact+Email;
}    
}

这是我的jquery Ajax代码..

$(document).ready(function(){

        $("#Button1").click(function() {


            $.ajax({
                type: "POST",
                url: "/ASPNET_WebServices_JQuery/DateWebService.asmx/GetData",
                data: { 'Name': 'SRI', 'Contact': '787979879898', 'Email': 'hr@.com' },
                contentType: "application/json; charset=utf-8",
                dataType: "json",
                success: function (msg)
                {
                    $("#output").text(msg.d);
                }
            });
        });

    });

请帮我解决这个问题。谢谢......

Answer 1

你可以尝试这样......

    [WebMethod]
[ScriptMethod(ResponseFormat = ResponseFormat.Json)]
    public string GetData(string Name, string Contact, string Email) {
        return Name+Contact+Email;
    }


$.ajax({
                type: "POST",
                url: "/ASPNET_WebServices_JQuery/DateWebService.asmx/GetData",
                data: "{ 'Name': 'SRI', 'Contact': '787979879898', 'Email': 'hr@.com' }",
                contentType: "application/json; charset=utf-8",
                dataType: "json",
                success: function (msg)
                {
                    $("#output").text(msg.d);
                }
            });

Answer 2

试试这个

[WebMethod]
public   string GetData(string Name, string Contact, string Email) {

               return Name+Contact+Email;
}

将字符串值存储到局部变量，然后尝试如下

 $.ajax({
                    type: "POST",
                    url: "/ASPNET_WebServices_JQuery/DateWebService.asmx/GetData",
                    data: '{"Name":"' + Name + '","Contact":"' + Contact + '","Email":"' + Email + '"}',
                    contentType: "application/json; charset=utf-8",
                    dataType: "json",
                    success: function (msg)
                    {
                        $("#output").text(msg.d);
                    }
                });

Answer 3

从你的ajax代码中删除以下行，它将起作用：

contentType: "application/json; charset=utf-8",
dataType: "json",

通过jquery Ajax调用Web服务的问题

3 个答案: