WCF REST服务400错误的请求 [英] WCF REST service 400 Bad Request

问题描述

我有WCF RESTful服务和Android客户端。

I have WCF RESTful service and Android client.

服务器400答复，当我做更大的请求。看来，我有65K的限制问题，像
在这里或在相同问题的其他百万的发帖。

Server replies with 400 when I do bigger request. It seems that I have 65k limit issue like in here or in other million posts on same problem.

不过，我似乎无法能够解决它。这里是我的web.config的外观

However, I can't seem to be able to fix it. Here is how my web.config looks

    <system.serviceModel>
    <diagnostics>
      <messageLogging logMalformedMessages="true" logMessagesAtServiceLevel="true"
        logMessagesAtTransportLevel="true" />
    </diagnostics>
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true"/>
    <standardEndpoints>
      <webHttpEndpoint>
        <standardEndpoint name="myEndpoint" helpEnabled="true" automaticFormatSelectionEnabled="true" maxReceivedMessageSize="1000000" />
      </webHttpEndpoint>
    </standardEndpoints>
  </system.serviceModel>

下面是服务功能的code例如：

Here is code example of service function:

[WebInvoke(UriTemplate = "/trips/{TripId}/inspection", Method = "POST")]
        [Description("Used on mobile devices to submit inspections to server")]
        public void PostTripInspection(string tripId, Inspection inspection)
        {
            return;
        }

下面是code它承载WCF（Global.asax.cs中）

Here is code inside my Web project which hosts WCF (Global.asax.cs)

private static void RegisterRoutes()
        {
            // Setup URL's for each customer
            using (var cmc = new CoreModelContext())
            {
                foreach (var account in cmc.Accounts.Where(aa => aa.IsActive).ToList())
                {
                    RouteTable.Routes.Add(
                        new ServiceRoute(
                            account.AccountId + "/mobile", new WebServiceHostFactory(), typeof(MobileService)));
                }
            }
        }

据我所知的Java的HttpClient不会强加任何限制所以它在WCF的一面。如何解决这个问题，或者如何在WCF消息拦截任何指针？

From what I understand Java HttpClient doesn't impose any limits so it's on WCF side. Any pointers on how to solve this issue or how to intercept message in WCF?

编辑2：
这是跟踪显示。当我modigy standardEndpoint它并不能帮助...

EDIT 2: This is what trace shows. And when I modigy standardEndpoint it doesn't help...

推荐答案

您不必使用这种情况下，流 - 所有你需要做的是提高标准webHttpEndpoint的maxReceivedMessageSize配额：

You don't need to use streaming in this case - all you need to do is to increase the maxReceivedMessageSize quota on the standard webHttpEndpoint:

<standardEndpoints>
  <webHttpEndpoint>
    <!-- 
        Configure the WCF REST service base address via the global.asax.cs file and the default endpoint 
        via the attributes on the <standardEndpoint> element below
    -->
    <standardEndpoint name=""
                      helpEnabled="true"
                      automaticFormatSelectionEnabled="true"
                      maxReceivedMessageSize="1000000"/>
  </webHttpEndpoint>
</standardEndpoints>

更新：如果配置的变化并没有工作（我不知道为什么），你可以尝试在code将其增加。通过使用自定义服务主机工厂，你到端点对象的引用，你可以增加配额那里。下面的code显示了这样一个工厂（你需要更新 RegisterRoute code使用这个新厂）：

Update: if the config change didn't work (I don't know why), you can try increasing it in code. By using a custom service host factory, you get a reference to the endpoint object and you can increase the quota there. The code below shows one such a factory (you'll need to update the RegisterRoute code to use this new factory):

public class MyWebServiceHostFactory : ServiceHostFactory
{
    protected override ServiceHost CreateServiceHost(Type serviceType, Uri[] baseAddresses)
    {
        return base.CreateServiceHost(serviceType, baseAddresses);
    }

    class MyWebServiceHost : WebServiceHost
    {
        public MyWebServiceHost(Type serviceType, Uri[] baseAddresses)
            : base(serviceType, baseAddresses)
        {
        }
        protected override void OnOpening()
        {
            base.OnOpening();
            foreach (ServiceEndpoint endpoint in this.Description.Endpoints)
            {
                if (!endpoint.IsSystemEndpoint)
                {
                    Binding binding = endpoint.Binding;
                    if (binding is WebHttpBinding)
                    {
                        ((WebHttpBinding)binding).MaxReceivedMessageSize = 1000000;
                    }
                    else
                    {
                        CustomBinding custom = binding as CustomBinding;
                        if (custom == null)
                        {
                            custom = new CustomBinding(binding);
                        }

                        custom.Elements.Find<HttpTransportBindingElement>().MaxReceivedMessageSize = 1000000;
                    }
                }
            }
        }
    }
}

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