La croix-Origine de la Demande Bloqué Raison: la SCRO de contrôle en amont du canal n'a pas réussi

Mondiale.asax:

Sub Application_BeginRequest(ByVal sender As Object, ByVal e As EventArgs)
    ' Fires at the beginning of each request
    If Request.HttpMethod = "OPTIONS" Then
        Response.Flush()
    End If

End Sub

Et permettre à méthode dans le web.config show ajouter des OPTIONS trop.

<?xml version="1.0" encoding="utf-8"?>
<configuration>
<appSettings>
<add key="aspnet:MaxJsonDeserializerMembers" value="1000000" />
</appSettings>
<connectionStrings/>
<system.web>
<compilation debug="true" strict="false" explicit="true" targetFramework="4.5.1"/>
<pages controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID">
<namespaces>
<clear/>
<add namespace="System"/>
<add namespace="System.Collections"/>
<add namespace="System.Collections.Specialized"/>
<add namespace="System.Configuration"/>
<add namespace="System.Text"/>
<add namespace="System.Text.RegularExpressions"/>
<add namespace="System.Web"/>
<add namespace="System.Web.Caching"/>
<add namespace="System.Web.SessionState"/>
<add namespace="System.Web.Security"/>
<add namespace="System.Web.Profile"/>
<add namespace="System.Web.UI"/>
<add namespace="System.Web.UI.WebControls"/>
<add namespace="System.Web.UI.WebControls.WebParts"/>
<add namespace="System.Web.UI.HtmlControls"/>
</namespaces>
</pages>
<authentication mode="Windows"/>
<webServices>
<protocols>
<add name="HttpGet"/>
<add name="HttpPost"/>
</protocols>
</webServices>
</system.web>
<system.webServer>
<staticContent>
<mimeMap fileExtension=".apk" mimeType="application/octet-stream"/>
</staticContent>
<handlers>
<remove name="ExtensionlessUrlHandler-Integrated-4.0"/>
<remove name="OPTIONSVerbHandler"/>
<remove name="TRACEVerbHandler"/>
<add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="*" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0"/>
</handlers>
<httpProtocol>
<customHeaders>
<add name="Access-Control-Allow-Methods" value="POST,OPTIONS,GET"/>
<add name="Access-Control-Allow-Headers" value="Cache-Control, Pragma, Origin, Authorization, Content-Type, X-Requested-With, Accept"/>
<add name="Access-Control-Allow-Origin" value="*"/>
</customHeaders>
</httpProtocol>
</system.webServer>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="System.Web.Cors" publicKeyToken="31BF3856AD364E35" culture="neutral"/>
<bindingRedirect oldVersion="0.0.0.0-5.2.3.0" newVersion="5.2.3.0"/>
</dependentAssembly>
</assemblyBinding>
</runtime>
<system.web.extensions>
<scripting>
<webServices>
<jsonSerialization maxJsonLength="4000000" />
</webServices>
</scripting>
</system.web.extensions>
</configuration>

Désolé que le global.asax est en VB parce que je suis un VB gars, je pense que vous pouvez convertir en C#.

Selon votre demande, mise à jour comme suit:

function funCheckWS() {
var tblLogin = {};
tblLogin.strLoginName = "UserName";
tblLogin.strPassword = "123456";
jQuery.support.cors = true;
$.ajax({
type: 'POST',
url: 'http://www.example.com/wsMain.asmx/funCheckWS',
data: "{tblLogin:" + JSON.stringify(tblLogin) + "}",
contentType: 'application/json; charset=utf-8',
dataType: 'json',
crossDomain: true,
//async: false,
async: true,
success: function (r) {
//Browser support WS
gloBolWS = true;
//alert("funCheck: " + r.d.strPassword);
},
error: function (xhr, ajaxOptions, thrownError) {
//Browser does not support WS
//alert(xhr.status);
//alert(thrownError);
}
});
}

Ci-dessous est ma web services en VB (la clsSQL est une Classe écrite en VB qui contient des fonctions de tous mes backend logiques d'entreprise et que vous pouvez accéder à sql server)：

Imports System.Web.Services
Imports System.Web.Services.Protocols
Imports System.ComponentModel
Imports System.Web.Script.Serialization
Imports System.Web.Script.Services
Imports System
Imports System.Collections.Generic
Imports System.Linq
Imports System.Web
<System.Web.Script.Services.ScriptService()> _
<System.Web.Services.WebService(Namespace:="http://tempuri.org/")> _
<System.Web.Services.WebServiceBinding(ConformsTo:=WsiProfiles.BasicProfile1_1)> _
<ToolboxItem(False)> _
Public Class wsMain
Inherits System.Web.Services.WebService
Private clsSQL As New wxdlSQL.clsSQL()
Private tblLogin As tabLogin
<WebMethod()> _
<ScriptMethod(ResponseFormat:=ResponseFormat.Json)> _
Public Function funCheckWS(tblLogin As tabLogin) As tabLogin
tblLogin.strLoginName += "Hello World"
Return tblLogin
End Function
End Class

Ci-dessous comment je définis le type de données pour les paramètres:

Public Class tabLogin
Private _loginname As String
Public Property strLoginName As String
Get
Return _loginname
End Get
Set(ByVal value As String)
_loginname = value
End Set
End Property
Private _password As String
Public Property strPassword As String
Get
Return _password
End Get
Set(ByVal value As String)
_password = value
End Set
End Property
End Class

OriginalL'auteur Kenneth Li

Dans votre Global.asax, ajoutez le code suivant:

protected void Application_AuthenticateRequest(object sender, EventArgs e){
Response.AddHeader("Access-Control-Allow-Origin", "*");
if (Context.Request.HttpMethod.Equals("OPTIONS")){
Response.AddHeader("Access-Control-Allow-Methods", "GET, POST, OPTIONS");
Response.AddHeader("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
Response.StatusCode = (int)System.Net.HttpStatusCode.OK;
Context.ApplicationInstance.CompleteRequest();
}
}

Qui devrait fonctionner

OriginalL'auteur Esha Wali