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如果我尝试使用 jQuery 或通过浏览器访问方法,我会得到 404。我的配置如下所示:

<system.serviceModel>
    <behaviors>
        <serviceBehaviors>
            <behavior name="RegistrationBehavior">
                <serviceMetadata httpGetEnabled="true" />
                <serviceDebug includeExceptionDetailInFaults="true" />
            </behavior>
        </serviceBehaviors>
        <endpointBehaviors>
            <behavior name="RegistrationEndpointBehavior">
                <enableWebScript/>
            </behavior>
        </endpointBehaviors>
    </behaviors>
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
    <services>
        <service name="Corp.EmployeeService" behaviorConfiguration="RegistrationBehavior">
            <endpoint address="" binding="webHttpBinding" contract="Corp.IEmployeeService" behaviorConfiguration="RegistrationEndpointBehavior" />
        </service>
    </services>
</system.serviceModel>

我相信这与配置有关,因为我的方法装饰有 OperationContract 和 WebInvoke 属性。

我的界面(为发布而简化)类似于以下内容:

namespace Corp
{
    [ServiceContract]
    public interface IEmployeeService
    {
        [OperationContract]
        [WebInvoke(ResponseFormat = WebMessageFormat.Json, Method = "POST")]
        int Register(string username);
    }
}

在服务类本身上,我使用以下属性对其进行了修饰:

[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
public class EmployeeService : IEmployeeService

正如我所说,我尝试使用http://localhost/EmployeeService.svc/Register或使用 jQuery 来访问服务,如下所示:

$.ajax({
    cache: false,
    async: true,
    type: "POST",
    dataType: "json",
    url: "http://localhost/EmployeeService.svc/Register",
    data: '{"username":"test"}',
    contentType: "application/json;charset=utf-8",
    success: function (msg) {
        var status = msg.RegisterResult;
        if (status == 1) {
            alert('Success');
        } else {
            alert('Failure');
        }
    },
    error: function (msg) {
        alert('Exception - ' + msg);
    }
});

两者都返回 404。

由于我在共享托管公司托管此服务,因此我在 ServiceFactory 上创建了我的服务,如下所示:

public class IisServiceHostFactory : ServiceHostFactory
{
    protected override ServiceHost CreateServiceHost(Type serviceType, Uri[] baseAddresses)
    {
        var newAddress = baseAddresses[0];

        if (!newAddress.AbsoluteUri.Contains("http://www."))
            newAddress = new Uri(newAddress.AbsoluteUri.Replace("http://", "http://www."));

        var webServiceHost = new IisServiceHost(serviceType, newAddress);
        return webServiceHost;
    }
}

public class IisServiceHost : ServiceHost
{
    public IisServiceHost(Type serviceType, params Uri[] baseAddresses): base(serviceType, baseAddresses) { }
}

尝试从 jQuery 中点击它时正在发生 POST。404 响应(来自为测试而简化的不同示例服务)如下所示:

404 来自同一项目中另一个服务的响应

此异常的文本为:HTTP 404。您正在查找的资源(或其依赖项之一)可能已被删除、名称已更改或暂时不可用。请查看以下 URL 并确保其拼写正确。

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