Il mio problema è noto e discusso here e here. Ma anche dopo aver letto e implementato le soluzioni suggerite non sono in grado di farlo funzionare.chiamata interdominio con jQuery jsonp al servizio Web ASP.NET
Il problema: il servizio web di ritorno xml invece di JSON:
<?xml version="1.0" encoding="utf-8"?>
<string xmlns="http://tempuri.org/">"Now i am getting jsop string""2nd param"</string>
Ora lascia rompere il codice in sezioni:
server remoto (IIS 7.0, .NET 4):
web.config:
<?xml version="1.0"?>
<configuration>
<system.webServer>
<modules>
<add name="JsonHttpModule.JsonHttpModule" type="JsonHttpModule"/>
</modules>
</system.webServer>
<system.web.extensions>
<scripting>
<webServices>
<jsonSerialization maxJsonLength="102400"/>
</webServices>
</scripting>
</system.web.extensions>
<system.web>
<compilation debug="true" targetFramework="4.0" />
<customErrors mode="Off"/>
<webServices>
<protocols>
<add name="HttpGet"/>
<add name="HttpPost"/>
</protocols>
</webServices>
</system.web>
</configuration>
servizio web:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Web.Script.Services;
using JsonHttpModule;
/// <summary>
/// Summary description for JSONP_EndPoint
/// </summary>
[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 MyService : System.Web.Services.WebService {
[WebMethod]
[ScriptMethod(UseHttpGet = true, ResponseFormat = ResponseFormat.Json)]
public string Sum(string x, string y)
{
return x + y;
}
}
classe HttpModule:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.IO;
using System.Text;
/// <summary>
/// Summary description for ContentTypeHttpModule
/// </summary>
namespace JsonHttpModule
{
public class JsonHttpModule : IHttpModule
{
private const string JSON_CONTENT_TYPE = "application/json; charset=utf-8";
public void Dispose()
{
}
public void Init(HttpApplication app)
{
app.BeginRequest += OnBeginRequest;
app.EndRequest += new EventHandler(OnEndRequest);
}
public void OnBeginRequest(object sender, EventArgs e)
{
HttpApplication app = (HttpApplication)sender;
HttpRequest request = app.Request;
//Make sure we only apply to our Web Service
if (request.Url.AbsolutePath.ToLower().Contains("MyService.asmx"))
{
if (string.IsNullOrEmpty(app.Context.Request.ContentType))
{
app.Context.Request.ContentType = JSON_CONTENT_TYPE;
}
app.Context.Response.Write(app.Context.Request.Params["callback"] + "(");
}
}
void OnEndRequest(object sender, EventArgs e)
{
HttpApplication app = (HttpApplication)sender;
HttpRequest request = app.Request;
if (request.Url.AbsolutePath.ToLower().Contains("MyService.asmx"))
{
app.Context.Response.Write(")");
}
}
}
}
lato client (localhost):
<script>
$(function() {
$('#btn_test').click(function() {
$.ajax({ url: "http://tonofweb.com/MyService.asmx/Sum",
data: { x: JSON.stringify("Now i am getting jsop string"), y: JSON.stringify("2nd param") },
dataType: "jsonp",
success: function (json) {
alert(json.d);
},
error: function() {
alert("Hit error fn!");
}
});
});
});
</script>
<input id="btn_test" type="button" value="POST" />
quindi cosa sto facendo di sbagliato qui? puoi testarlo da soli, è un servizio web in diretta. Grazie per il vostro aiuto.
passaggio da jsonp a JSON non funziona a causa di croce problema dominio e la conversione di opporsi ancora tornare xml –