WCF新手问：从JavaScript调用的方法 [英] WCF Newbie Question: Calling Methods from JavaScript

问题描述

您好！

我是新来的WCF，我认为这将是类似于ASP.NET Web服务，但我无法调用从客户端JavaScript的方法。我的网页形式如下：

I'm new to WCF and I thought it would be similar to ASP.NET web services, but I'm unable to call a method from client-side JavaScript. My web form looks like this:

<form id="form1" runat="server">
   <div>
      <asp:ScriptManager ID="ScriptManager1" runat="server">
         <Scripts>
            <asp:ScriptReference Path="~/test.js" />
         </Scripts>
         <Services>
            <asp:ServiceReference Path="~/MyService.svc" />
         </Services>
      </asp:ScriptManager>
   </div>
   <button onclick="test()">Click Me</button>
</form>

我的服务的接口看起来是这样的：

My service's interface looks like this:

namespace Test
{
    [ServiceContract(Namespace = "Test")]
    public interface IMyService
    {
        [OperationContract]
        void DoWork();

        [OperationContract]
        string SayHi();
    }
}

下面是其实现：

namespace Test
{
    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
    public class MyService : IMyService
    {
        public void DoWork()
        {
        }

        public string SayHi()
        {
            return "Hello, World!";
        }
    }
}

和最后的JavaScript：

And finally the JavaScript:

function test() {
    Test.MyService.SayHi(SayHiSuccess, SayHiError);
}

function SayHiSuccess(result) {
    alert(result[0]);
}

function SayHiError(error) {
    alert(error.toString());
}

看来，该服务的的sayHi（）方法从不执行，虽然我不知道为什么或如何被排除故障。有什么建议？

It appears that the service's SayHi() method never executes, although I'm not sure why or how to being troubleshooting. Any suggestions?

推荐答案

您没有张贴你的web.config的内容。您正在使用什么约束力？你或许应该使用 的WebHttpBinding 。

You didn't post your web.config contents. What binding are you using? You should probably be using webHttpBinding.

此外，它可以帮助了解您的.svc文件的内容。虽然我从来没有尝试过，我知道你没有，如果你使用<一个在所有修改的web.config href=\"http://msdn.microsoft.com/en-us/library/system.servicemodel.activation.webscriptservicehostfactory.aspx\"相对=nofollow> WebScriptServiceHostFactory 为您服务主机工厂。这是简单，只要修改您的.svc文件如下：

Also, it may help to know your .svc file contents. Although I've never tried it, I understand that you don't have to modify web.config at all if you use WebScriptServiceHostFactory as your service host factory. That's as simple as modifying your .svc file as follows:

<%@ ServiceHost Service="MyService"
    Factory="System.ServiceModel.Activation.WebScriptServiceHostFactory"
 %>

如果一切都失败了，这里有一些资源给你：

If all else fails, here are some resources for you:

• 从Javascript调用WCF服务


• 创建一个简单的WCF的Web ...

• Calling WCF Service from Javascript
• Create a Simple WCF Web...

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