如何向WCF服务添加跨域支持 [英] How to add cross domain support to WCF service

问题描述

我试图允许从我的javascript应用程序托管在localhost：80的POST请求到一个WCF REStful服务托管在不同的端口，但不知何故，它不工作。我已经尝试添加自定义属性到标题，以及将其添加到我的服务的 JSONData 方法，但我仍然得到405方法不允许在我的响应。这里是什么正确的方法？

I'm trying to allow POST requests from my javascript app hosted at localhost:80 to a WCF REStful service hosted at a different port, but somehow it doesn't work. I've tried adding custom properties to the header, as well as adding it programatically in my service's JSONData method but I'm still getting '405 Method not allowed' in my response. What is the proper approach here ?

这是我的界面：

namespace RestService
{
    public class RestServiceImpl : IRestServiceImpl
    {
        #region IRestServiceImpl Members

        public string JSONData()
        {
            HttpContext.Current.Response.AddHeader("Access-Control-Allow-Origin", "*");
            return "Your POST request";
        }

        #endregion
    }
}

$ b b

和服务代码：

and the service code :

using System.ServiceModel;
using System.ServiceModel.Web;
using System.Web.Script.Services;

namespace RestService
{

    [ServiceContract]
    public interface IRestServiceImpl
    {
        [OperationContract]
        [ScriptMethod]
        [WebInvoke(Method = "POST",
            ResponseFormat = WebMessageFormat.Json,
            BodyStyle = WebMessageBodyStyle.Bare,
            UriTemplate = "export")]
        string JSONData();
    }
}

最后是配置：

<?xml version="1.0"?>
<configuration>

  <system.web>
    <compilation debug="true" targetFramework="4.0" />
  </system.web>
  <system.serviceModel>
    <services>
      <service name="RestService.RestServiceImpl" behaviorConfiguration="ServiceBehaviour">
        <endpoint address ="" binding="webHttpBinding" contract="RestService.IRestServiceImpl" behaviorConfiguration="web">
        </endpoint>
      </service>
    </services>

    <behaviors>
      <serviceBehaviors>
        <behavior name="ServiceBehaviour">
          <serviceMetadata httpGetEnabled="true"/>
          <serviceDebug includeExceptionDetailInFaults="false"/>
        </behavior>
      </serviceBehaviors>
      <endpointBehaviors>
        <behavior name="web">
          <webHttp/>
        </behavior>
      </endpointBehaviors>
    </behaviors>
    <serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
  </system.serviceModel>
  <system.webServer>
    <modules runAllManagedModulesForAllRequests="true"/>
    <httpProtocol>
      <customHeaders>
         <add name="Access-Control-Allow-Origin" value="*" />
      </customHeaders>
</httpProtocol>  
  </system.webServer>

</configuration>

推荐答案

：

创建 Global.asax

添加这个代码到 Global.asax.cs ：

protected void Application_BeginRequest(object sender, EventArgs e)
{
    HttpContext.Current.Response.AddHeader("Access-Control-Allow-Origin" , "*");
    if (HttpContext.Current.Request.HttpMethod == "OPTIONS")
    {
        HttpContext.Current.Response.AddHeader("Access-Control-Allow-Methods", "GET, POST");
        HttpContext.Current.Response.AddHeader("Access-Control-Allow-Headers", "Content-Type, Accept");
        HttpContext.Current.Response.AddHeader("Access-Control-Max-Age", "1728000");
        HttpContext.Current.Response.End();
    }
}

http://www.dotnet-tricks.com/Tutorial/wcf /X8QN260412-Calling-Cross-Domain-WCF-Service-using-Jquery.html

这篇关于如何向WCF服务添加跨域支持的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！