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ASP.Net 3.5中的CORS

2016-01-07 52 views
0

我在ASP.Net 3.5中創建了一個基本的Web服務。現在，當我嘗試從不同的域訪問它時，它給了我錯誤。我嘗試了很多東西來啓用CORS，但是沒有做到。請幫我解決這個問題。ASP.Net 3.5中的CORS

dealsfeed.cs

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Web; 
using System.Web.Services; 

using System.Data.SqlClient; 
using Man.Utility; 
using Man.Helper; 

using System.ServiceModel.Web; 

/// <summary> 
/// Summary description for dealsfeed 
/// </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 dealsfeed : System.Web.Services.WebService { 

    public dealsfeed() { 

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

    [WebMethod] 
    public string HelloWorld() { 
     try 
     { 
      return "Hello World"; 
     } 
     catch (NullReferenceException ex) 
     { 
      return "Processor Usage" + ex.Message; 
     } 
    } 

}

的web.config

<?xml version="1.0"?> 
<!-- 
    Note: As an alternative to hand editing this file you can use the 
    web admin tool to configure settings for your application. Use 
    the Website->Asp.Net Configuration option in Visual Studio. 
    A full list of settings and comments can be found in 
    machine.config.comments usually located in 
    \Windows\Microsoft.Net\Framework\vx.x\Config 
--> 
<configuration> 

    <configSections> 
     <sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"> 
     <sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"> 
      <section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/> 
      <sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"> 
      <section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="Everywhere" /> 
      <section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" /> 
      <section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" /> 
      <section name="roleService" type="System.Web.Configuration.ScriptingRoleServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" /> 
      </sectionGroup> 
     </sectionGroup> 
     </sectionGroup> 
    </configSections> 
    <appSettings/> 
    <connectionStrings/> 
    <system.web> 
     <!-- 
      Set compilation debug="true" to insert debugging 
      symbols into the compiled page. Because this 
      affects performance, set this value to true only 
      during development. 
     --> 
     <compilation debug="true"> 
      <assemblies> 
      <add assembly="System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/> 
      <add assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/> 
      <add assembly="System.Data.DataSetExtensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/> 
      <add assembly="System.Xml.Linq, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/> 
      </assemblies> 
     </compilation> 
     <!-- 
      The <authentication> section enables configuration 
      of the security authentication mode used by 
      ASP.NET to identify an incoming user. 
     --> 
     <authentication mode="Windows" /> 
     <!-- 
      The <customErrors> section enables configuration 
      of what to do if/when an unhandled error occurs 
      during the execution of a request. Specifically, 
      it enables developers to configure html error pages 
      to be displayed in place of a error stack trace. 
     --> 
     <customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm"> 
      <error statusCode="403" redirect="NoAccess.htm" /> 
      <error statusCode="404" redirect="FileNotFound.htm" /> 
     </customErrors> 
     <pages> 
     <controls> 
      <add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/> 
      <add tagPrefix="asp" namespace="System.Web.UI.WebControls" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/> 
     </controls> 
     </pages> 

     <webServices> 
     <protocols> 
      <add name="HttpGet"/> 
      <add name="HttpPost"/> 
     </protocols> 
     </webServices> 
     <httpHandlers> 
     <remove verb="*" path="*.asmx"/> 
     <add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/> 
     <add verb="*" path="*_AppService.axd" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/> 
     <add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" validate="false"/> 
     </httpHandlers> 
     <httpModules> 
     <add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/> 
     </httpModules> 
    </system.web> 
    <system.codedom> 
     <compilers> 
     <compiler language="c#;cs;csharp" extension=".cs" warningLevel="4" 
        type="Microsoft.CSharp.CSharpCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"> 
      <providerOption name="CompilerVersion" value="v3.5"/> 
      <providerOption name="WarnAsError" value="false"/> 
     </compiler> 
     <compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" warningLevel="4" 
        type="Microsoft.VisualBasic.VBCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"> 
      <providerOption name="CompilerVersion" value="v3.5"/> 
      <providerOption name="OptionInfer" value="true"/> 
      <providerOption name="WarnAsError" value="false"/> 
     </compiler> 
     </compilers> 
    </system.codedom> 
    <!-- 
     The system.webServer section is required for running ASP.NET AJAX under Internet 
     Information Services 7.0. It is not necessary for previous version of IIS. 
    --> 
    <system.webServer> 
     <validation validateIntegratedModeConfiguration="false"/> 
     <modules> 
     <remove name="ScriptModule" /> 
     <add name="ScriptModule" preCondition="managedHandler" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/> 
     </modules> 
     <handlers> 
     <remove name="WebServiceHandlerFactory-Integrated"/> 
     <remove name="ScriptHandlerFactory" /> 
     <remove name="ScriptHandlerFactoryAppServices" /> 
     <remove name="ScriptResource" /> 
     <add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode" 
      type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/> 
     <add name="ScriptHandlerFactoryAppServices" verb="*" path="*_AppService.axd" preCondition="integratedMode" 
      type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/> 
     <add name="ScriptResource" preCondition="integratedMode" verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> 
     </handlers> 
     <httpProtocol> 
     <customHeaders> 
      <add name="Access-Control-Allow-Origin" value="*" /> 
      <add name="Access-Control-Allow-Methods" value="GET,PUT,POST,DELETE,OPTIONS" /> 
      <add name="Access-Control-Allow-Headers" value="Content-Type" /> 
     </customHeaders> 
     </httpProtocol> 
    </system.webServer> 
    <runtime> 
     <assemblyBinding appliesTo="v2.0.50727" xmlns="urn:schemas-microsoft-com:asm.v1"> 
     <dependentAssembly> 
      <assemblyIdentity name="System.Web.Extensions" publicKeyToken="31bf3856ad364e35"/> 
      <bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="3.5.0.0"/> 
     </dependentAssembly> 
     <dependentAssembly> 
      <assemblyIdentity name="System.Web.Extensions.Design" publicKeyToken="31bf3856ad364e35"/> 
      <bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="3.5.0.0"/> 
     </dependentAssembly> 
     </assemblyBinding> 
    </runtime> 
</configuration>

腳本

$.ajax({ 
    url: "http://deals.giftyourfeelings.co.in/services/dealsfeed.asmx/HelloWorld", 
    method: "GET", 
    dataTypa:"jsonp", 
    contentType:"application/json; charset=utf-8", 
})

來源

2016-01-07 manan2809

回答

2

請經過藝術爲Enabling CORS in ASP.NET Server。您需要配置IIS以啓用它。如果沒有，你可以啓用使用下面的代碼：

Response.AppendHeader("Access-Control-Allow-Origin", "*");

將此代碼添加到您的配置：

public static void Register(HttpConfiguration config) 
{ 
    // New code 
    config.EnableCors(); 
}

要啓用跨域請求，添加[EnableCors]屬性到你的Web API控制器或控制器的方法：

[EnableCors(origins: "http://example.com", headers: "*", methods: "*")] 
public class TestController : ApiController 
{ 
    // Controller methods not shown... 
}

如上所述也可以使用，以使在整個API CORS的方法沒有註釋每個控制器：

public static void Register(HttpConfiguration config) 
{ 
    var corsAttr = new EnableCorsAttribute("http://example.com", "*", "*"); 
    config.EnableCors(corsAttr); 
}

來源

2016-01-07 18:33:07

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