从 javascript 调用 C# webservices 并使用它（json 格式）
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Call C# webservices from javascript and consume it (json format)
提问by Vervatovskis
I have created a c# webservice and i am trying to call it and consume it from a javascript script, what is the way or the best way to do it, thanks in advance. I'll explain more: this is the web service:
我已经创建了 ac# webservice，我正在尝试调用它并从 javascript 脚本中使用它，这样做的方法或最佳方法是什么，提前致谢。我会解释更多：这是网络服务：
public class DocumentInfo : System.Web.Services.WebService
{
[WebMethod(EnableSession = true)]
[ScriptMethod(ResponseFormat = System.Web.Script.Services.ResponseFormat.Json)]
public string GetDocumentInfo(string id)
{
Document document = new Document(Int32.Parse(id));
string output = JsonConvert.SerializeObject(document);
return output;
}
}
I have tested it, it works, when i tried the suggested ajax solutions, i got this error 500 Internal Server Error.
我已经测试过它，它有效，当我尝试建议的 ajax 解决方案时，我收到此错误 500 内部服务器错误。
采纳答案by Talha
Read some of the tutorials
阅读一些教程
http://encosia.com/using-jquery-to-consume-aspnet-json-web-services/http://weblogs.asp.net/jalpeshpvadgama/archive/2010/08/29/calling-an-asp-net-web-service-from-jquery.aspx
http://encosia.com/using-jquery-to-consume-aspnet-json-web-services/ http://weblogs.asp.net/jalpeshpvadgama/archive/2010/08/29/calling-an-asp- net-web-service-from-jquery.aspx
function TestService()
{
try
{
$.ajax({
type: "POST",
url: "http://webserviceURL.asmx/YourWebMethodName",
data: "{'abc':'" + 123 + "'}", // if ur method take parameters
contentType: "application/json; charset=utf-8",
success: SuccessTestService,
dataType: "json",
failure: ajaxCallFailed
});
}
catch (e)
{
alert('failed to call web service. Error: ' + e);
}
}
function SuccessTestService(responce) {
alert(eval(responce.d));
}
function ajaxCallFailed(error) {
alert('error: ' + error);
}
回答by alexandernst
You need to make an AJAX request and wait for the callback to receive the data.
您需要发出 AJAX 请求并等待回调接收数据。
A very simple example using jQuery:
使用 jQuery 的一个非常简单的示例：
$.ajax({
url: "/my_service.cs"
}).done(function(data) {
console.log("Received: ", data);
});
回答by Gyan Chandra Srivastava
go through this demo project it will help you in multiple direction
http://www.codeproject.com/Articles/21045/Different-methods-to-call-Web-Services-from-AJAX
http://www.codeproject.com/Articles/21045/Different-methods-to-call-Web-Services-from-AJAX
by using javascript ajax method you can do it
通过使用 javascript ajax 方法，你可以做到
$.ajax({
type: "POST",
url: ,//webservice url
data: , // if ur method take parameters
contentType: "application/json; charset=utf-8",
success:{},
dataType: "json",
failure: {}
});
回答by Darren
Use jQuery AJAX:
使用jQuery AJAX：
$.ajax({
url: 'YourServiceURL',
success: function(data) {
alert('Web Service Called!');
}
});
