WCFService 的方法 GET 请求上的 HTTP 400 错误请求

Question

我正在使用 fiddler 来测试我的网络服务。它连接到 SQL 服务器数据库（已连接并且运行）get 在本地主机上工作，并通过 VS 2017 中的 IIS Express 工作。在 IIS 上，服务器工作，除了通过 fiddler 的 GET 请求。如果您需要查看我的 Service1.svc 文件，请告诉我（代码过多，文本不足错误）我已经尝试了所有其他答案

web.config

<appSettings>
  <add key="aspnet:UseTaskFriendlySynchronizationContext" value="true" />
</appSettings>
<system.web>
  <compilation debug="true" targetFramework="4.6.1" />
  <httpRuntime targetFramework="4.6.1"/>
</system.web>
<system.serviceModel>

      <!--<behavior>
         To avoid disclosing metadata information, set the values below to false before deployment
        <serviceMetadata httpGetEnabled="true" httpsGetEnabled="true"/>
         To receive exception details in faults for debugging purposes, set the value below to true.  Set to false before deployment to avoid disclosing exception information
        <serviceDebug includeExceptionDetailInFaults="false"/>
      </behavior> -->
  <bindings>
    <webHttpBinding>
      <binding name="restLargeBinding" maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647" maxBufferSize="2147483647" transferMode="Streamed">
        <readerQuotas maxStringContentLength="2147483647"/>
      </binding>
    </webHttpBinding>
  </bindings>
  <behaviors>
    <endpointBehaviors>
      <behavior name="myWebEndPointBehaviour">
        <webHttp automaticFormatSelectionEnabled="true" defaultBodyStyle="Bare" defaultOutgoingResponseFormat="Json" helpEnabled="true"/>
        <dataContractSerializer maxItemsInObjectGraph="2147483647"/>
      </behavior>
    </endpointBehaviors> 

    <serviceBehaviors>
      <behavior name="myServiceBehaviour">
        <serviceMetadata httpGetEnabled="true"/>
        <serviceDebug includeExceptionDetailInFaults="true"/>
        <dataContractSerializer maxItemsInObjectGraph="2147483647"/>
      </behavior>
    </serviceBehaviors>
  </behaviors>

  <services>
    <service name="TestWcfService.Service1" behaviorConfiguration="myServiceBehaviour">
      <endpoint address="" contract="TestWcfService.IService1" binding="webHttpBinding" bindingConfiguration="restLargeBinding" behaviorConfiguration="myWebEndPointBehaviour"></endpoint>
      <endpoint address="mex" contract="TestWcfService.IService1" binding="mexHttpBinding" />
    </service>
  </services>

  <protocolMapping>
      <add binding="basicHttpsBinding" scheme="https" />
  </protocolMapping>    
  <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
</system.serviceModel>
<system.webServer>
  <modules runAllManagedModulesForAllRequests="true"/>
  <!--
      To browse web app root directory during debugging, set the value below to true.
      Set to false before deployment to avoid disclosing web app folder information.
    -->
  <directoryBrowse enabled="true"/>
</system.webServer>

IService1.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Web;
using System.Text;

namespace TestWcfService
{
    // NOTE: You can use the "Rename" command on the "Refactor" menu to change the interface name "IService1" in both code and config file together.
    [ServiceContract]
    public interface IService1
    {

        // TODO: Add your service opperations here

        // Get Method
        [OperationContract]
        [WebGet(UriTemplate = "GetUserName")]
        List<UserName> GetUserName();

        // Post Method
        [OperationContract]
        [WebInvoke(Method = "POST", UriTemplate = "AddUser", BodyStyle = WebMessageBodyStyle.WrappedRequest, RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json)]
        int AddUser(string user);

    }

    [DataContract]
    public class UserName
    {
        string user;

        [DataMember]
        public string User
        {
            get { return user; }
            set { user = value; }
        }
    }
}

Answer 1

我需要找到正确的异常消息。有几种不同的方法可以做到这一点，但在这种情况下最简单的方法是使用 fiddler（因为错误是在使用它时引起的）。我需要做的就是粘贴我用于 GET 请求的 Uri 并将其粘贴到浏览器中。这给了我异常和跟踪细节。然后我使用异常消息 Login failed for user 'IIS APPPOOL\WCFService 来搜索答案。这个问题的公认答案 Login failed for user 'IIS APPPOOL\ASP.NET v4.0' 是解决方案（登录可能会或不会略有不同，具体取决于您使用的确切错误代码和服务）

希望这对其他人有帮助。

WCFService 的方法 GET 请求上的 HTTP 400 错误请求

HTTP 400 Bad Request on method GET request for WCFService

c#

iis

wcf

get

fiddler