如何以編程方式修改 WCF app.config 端點地址設置？

Question

我想以編程方式修改我的 app.config 文件以設置應該使用哪個服務文件端點。 在運行時執行此操作的最佳方法是什么？ 以供參考：

<endpoint address="http://mydomain/MyService.svc"
    binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_IASRService"
    contract="ASRService.IASRService" name="WSHttpBinding_IASRService">
    <identity>
        <dns value="localhost" />
    </identity>
</endpoint>

Answer 1

這是在客戶端嗎？

如果是這樣，您需要創建一個 WsHttpBinding 實例和一個 EndpointAddress，然后將這兩個傳遞給將這兩個作為參數的代理客戶端構造函數。

// using System.ServiceModel;
WSHttpBinding binding = new WSHttpBinding();
EndpointAddress endpoint = new EndpointAddress(new Uri("http://localhost:9000/MyService"));

MyServiceClient client = new MyServiceClient(binding, endpoint);

如果它在服務器端，您需要以編程方式創建自己的 ServiceHost 實例，並向其添加適當的服務端點。

ServiceHost svcHost = new ServiceHost(typeof(MyService), null);

svcHost.AddServiceEndpoint(typeof(IMyService), 
                           new WSHttpBinding(), 
                           "http://localhost:9000/MyService");

當然，您可以將多個服務端點添加到您的服務主機。 完成后，您需要通過調用 .Open() 方法打開服務主機。

如果您希望能夠在運行時動態選擇要使用的配置，您可以定義多個配置，每個配置都有一個唯一的名稱，然后使用配置調用適當的構造函數（對於您的服務主機或代理客戶端）您希望使用的名稱。

例如，您可以輕松擁有：

<endpoint address="http://mydomain/MyService.svc"
        binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_IASRService"
        contract="ASRService.IASRService" 
        name="WSHttpBinding_IASRService">
        <identity>
            <dns value="localhost" />
        </identity>
</endpoint>

<endpoint address="https://mydomain/MyService2.svc"
        binding="wsHttpBinding" bindingConfiguration="SecureHttpBinding_IASRService"
        contract="ASRService.IASRService" 
        name="SecureWSHttpBinding_IASRService">
        <identity>
            <dns value="localhost" />
        </identity>
</endpoint>

<endpoint address="net.tcp://mydomain/MyService3.svc"
        binding="netTcpBinding" bindingConfiguration="NetTcpBinding_IASRService"
        contract="ASRService.IASRService" 
        name="NetTcpBinding_IASRService">
        <identity>
            <dns value="localhost" />
        </identity>
</endpoint>

（三個不同的名稱，通過指定不同的 bindingConfigurations 不同的參數）然后選擇正確的一個來實例化您的服務器（或客戶端代理）。

但在這兩種情況下 - 服務器和客戶端 - 您必須在實際創建服務主機或代理客戶端之前進行選擇。 一旦創建，這些是不可變的- 一旦它們啟動並運行，您就無法調整它們。

馬克

Answer 2

我使用以下代碼更改 App.Config 文件中的端點地址。 您可能希望在使用前修改或刪除命名空間。

using System;
using System.Xml;
using System.Configuration;
using System.Reflection;
//...

namespace Glenlough.Generations.SupervisorII
{
    public class ConfigSettings
    {

        private static string NodePath = "//system.serviceModel//client//endpoint";
        private ConfigSettings() { }

        public static string GetEndpointAddress()
        {
            return ConfigSettings.loadConfigDocument().SelectSingleNode(NodePath).Attributes["address"].Value;
        }

        public static void SaveEndpointAddress(string endpointAddress)
        {
            // load config document for current assembly
            XmlDocument doc = loadConfigDocument();

            // retrieve appSettings node
            XmlNode node = doc.SelectSingleNode(NodePath);

            if (node == null)
                throw new InvalidOperationException("Error. Could not find endpoint node in config file.");

            try
            {
                // select the 'add' element that contains the key
                //XmlElement elem = (XmlElement)node.SelectSingleNode(string.Format("//add[@key='{0}']", key));
                node.Attributes["address"].Value = endpointAddress;

                doc.Save(getConfigFilePath());
            }
            catch( Exception e )
            {
                throw e;
            }
        }

        public static XmlDocument loadConfigDocument()
        {
            XmlDocument doc = null;
            try
            {
                doc = new XmlDocument();
                doc.Load(getConfigFilePath());
                return doc;
            }
            catch (System.IO.FileNotFoundException e)
            {
                throw new Exception("No configuration file found.", e);
            }
        }

        private static string getConfigFilePath()
        {
            return Assembly.GetExecutingAssembly().Location + ".config";
        }
    }
}

Answer 3

SomeServiceClient client = new SomeServiceClient();

var endpointAddress = client.Endpoint.Address; //gets the default endpoint address

EndpointAddressBuilder newEndpointAddress = new EndpointAddressBuilder(endpointAddress);
                newEndpointAddress.Uri = new Uri("net.tcp://serverName:8000/SomeServiceName/");
                client = new SomeServiceClient("EndpointConfigurationName", newEndpointAddress.ToEndpointAddress());

我是這樣做的。 好消息是它仍然從配置中獲取其余的端點綁定設置，只是替換 URI 。

Answer 4

這個簡短的代碼對我有用：

Configuration wConfig = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
ServiceModelSectionGroup wServiceSection = ServiceModelSectionGroup.GetSectionGroup(wConfig);

ClientSection wClientSection = wServiceSection.Client;
wClientSection.Endpoints[0].Address = <your address>;
wConfig.Save();

當然，您必須在配置更改后創建 ServiceClient 代理。 您還需要引用System.Configuration和System.ServiceModel程序集來完成這項工作。

干杯

Answer 5

我已經修改並擴展了 Malcolm Swaine 的代碼，以通過其名稱屬性修改特定節點，並修改外部配置文件。 希望能幫助到你。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Reflection;

namespace LobbyGuard.UI.Registration
{
public class ConfigSettings
{

    private static string NodePath = "//system.serviceModel//client//endpoint";

    private ConfigSettings() { }

    public static string GetEndpointAddress()
    {
        return ConfigSettings.loadConfigDocument().SelectSingleNode(NodePath).Attributes["address"].Value;
    }

    public static void SaveEndpointAddress(string endpointAddress)
    {
        // load config document for current assembly
        XmlDocument doc = loadConfigDocument();

        // retrieve appSettings node
        XmlNodeList nodes = doc.SelectNodes(NodePath);

        foreach (XmlNode node in nodes)
        {
            if (node == null)
                throw new InvalidOperationException("Error. Could not find endpoint node in config file.");

            //If this isnt the node I want to change, look at the next one
            //Change this string to the name attribute of the node you want to change
            if (node.Attributes["name"].Value != "DataLocal_Endpoint1")
            {
                continue;
            }

            try
            {
                // select the 'add' element that contains the key
                //XmlElement elem = (XmlElement)node.SelectSingleNode(string.Format("//add[@key='{0}']", key));
                node.Attributes["address"].Value = endpointAddress;

                doc.Save(getConfigFilePath());

                break;
            }
            catch (Exception e)
            {
                throw e;
            }
        }
    }

    public static void SaveEndpointAddress(string endpointAddress, string ConfigPath, string endpointName)
    {
        // load config document for current assembly
        XmlDocument doc = loadConfigDocument(ConfigPath);

        // retrieve appSettings node
        XmlNodeList nodes = doc.SelectNodes(NodePath);

        foreach (XmlNode node in nodes)
        {
            if (node == null)
                throw new InvalidOperationException("Error. Could not find endpoint node in config file.");

            //If this isnt the node I want to change, look at the next one
            if (node.Attributes["name"].Value != endpointName)
            {
                continue;
            }

            try
            {
                // select the 'add' element that contains the key
                //XmlElement elem = (XmlElement)node.SelectSingleNode(string.Format("//add[@key='{0}']", key));
                node.Attributes["address"].Value = endpointAddress;

                doc.Save(ConfigPath);

                break;
            }
            catch (Exception e)
            {
                throw e;
            }
        }
    }

    public static XmlDocument loadConfigDocument()
    {
        XmlDocument doc = null;
        try
        {
            doc = new XmlDocument();
            doc.Load(getConfigFilePath());
            return doc;
        }
        catch (System.IO.FileNotFoundException e)
        {
            throw new Exception("No configuration file found.", e);
        }
    }

    public static XmlDocument loadConfigDocument(string Path)
    {
        XmlDocument doc = null;
        try
        {
            doc = new XmlDocument();
            doc.Load(Path);
            return doc;
        }
        catch (System.IO.FileNotFoundException e)
        {
            throw new Exception("No configuration file found.", e);
        }
    }

    private static string getConfigFilePath()
    {
        return Assembly.GetExecutingAssembly().Location + ".config";
    }
}

}

Answer 6

即使沒有定義配置部分，這是您可以用來更新應用程序配置文件的最短代碼：

void UpdateAppConfig(string param)
{
   var doc = new XmlDocument();
   doc.Load("YourExeName.exe.config");
   XmlNodeList endpoints = doc.GetElementsByTagName("endpoint");
   foreach (XmlNode item in endpoints)
   {
       var adressAttribute = item.Attributes["address"];
       if (!ReferenceEquals(null, adressAttribute))
       {
           adressAttribute.Value = string.Format("http://mydomain/{0}", param);
       }
   }
   doc.Save("YourExeName.exe.config");
}

Answer 7

MyServiceClient client = new MyServiceClient(binding, endpoint);
client.Endpoint.Address = new EndpointAddress("net.tcp://localhost/webSrvHost/service.svc");
client.Endpoint.Binding = new NetTcpBinding()
            {
                Name = "yourTcpBindConfig",
                ReaderQuotas = XmlDictionaryReaderQuotas.Max,
                ListenBacklog = 40 }

修改 config 中的 uri 或 config 中的綁定信息非常容易。 這是你想要的嗎？

Answer 8

無論如何，我需要為我的 RESTFul 服務更新 SSL 的端口和方案。 這就是我所做的。 抱歉，這比原始問題要多一些，但希望對某人有用。

// Don't forget to add references to System.ServiceModel and System.ServiceModel.Web

using System.ServiceModel;
using System.ServiceModel.Configuration;

var port = 1234;
var isSsl = true;
var scheme = isSsl ? "https" : "http";

var currAssembly = System.Reflection.Assembly.GetExecutingAssembly().CodeBase;
Configuration config = ConfigurationManager.OpenExeConfiguration(currAssembly);

ServiceModelSectionGroup serviceModel = ServiceModelSectionGroup.GetSectionGroup(config);

// Get the first endpoint in services.  This is my RESTful service.
var endp = serviceModel.Services.Services[0].Endpoints[0];

// Assign new values for endpoint
UriBuilder b = new UriBuilder(endp.Address);
b.Port = port;
b.Scheme = scheme;
endp.Address = b.Uri;

// Adjust design time baseaddress endpoint
var baseAddress = serviceModel.Services.Services[0].Host.BaseAddresses[0].BaseAddress;
b = new UriBuilder(baseAddress);
b.Port = port;
b.Scheme = scheme;
serviceModel.Services.Services[0].Host.BaseAddresses[0].BaseAddress = b.Uri.ToString();

// Setup the Transport security
BindingsSection bindings = serviceModel.Bindings;
WebHttpBindingCollectionElement x =(WebHttpBindingCollectionElement)bindings["webHttpBinding"];
WebHttpBindingElement y = (WebHttpBindingElement)x.ConfiguredBindings[0];
var e = y.Security;

e.Mode = isSsl ? WebHttpSecurityMode.Transport : WebHttpSecurityMode.None;
e.Transport.ClientCredentialType = HttpClientCredentialType.None;

// Save changes
config.Save();

Answer 9

你可以這樣做：

• 將您的設置保存在單獨的 xml 文件中，並在為您的服務創建代理時通讀它。

例如，我想在運行時修改我的服務端點地址，所以我有以下ServiceEndpoint.xml文件。

     <?xml version="1.0" encoding="utf-8" ?>
     <Services>
        <Service name="FileTransferService">
           <Endpoints>
              <Endpoint name="ep1" address="http://localhost:8080/FileTransferService.svc" />
           </Endpoints>
        </Service>
     </Services>

• 閱讀您的 xml ：

   var doc = new XmlDocument(); doc.Load(FileTransferConstants.Constants.SERVICE_ENDPOINTS_XMLPATH); XmlNodeList endPoints = doc.SelectNodes("/Services/Service/Endpoints"); foreach (XmlNode endPoint in endPoints) { foreach (XmlNode child in endPoint) { if (child.Attributes["name"].Value.Equals("ep1")) { var adressAttribute = child.Attributes["address"]; if (!ReferenceEquals(null, adressAttribute)) { address = adressAttribute.Value; } } } }

• 然后在運行時獲取客戶端的 web.config 文件並將服務端點地址分配為：

   Configuration wConfig = ConfigurationManager.OpenMappedExeConfiguration(new ExeConfigurationFileMap { ExeConfigFilename = @"C:\\FileTransferWebsite\\web.config" }, ConfigurationUserLevel.None); ServiceModelSectionGroup wServiceSection = ServiceModelSectionGroup.GetSectionGroup(wConfig); ClientSection wClientSection = wServiceSection.Client; wClientSection.Endpoints[0].Address = new Uri(address); wConfig.Save();

Answer 10

我認為您想要的是在運行時換出配置文件的一個版本，如果是這樣，請創建具有正確地址的配置文件的副本（也給它相關的擴展名，如 .Debug 或 .Release）（這會給您一個調試版本和一個運行時版本）並創建一個 postbuild 步驟，根據構建類型復制正確的文件。

這是我過去使用的 postbuild 事件的示例，它使用正確的版本（調試/運行時）覆蓋輸出文件

copy "$(ProjectDir)ServiceReferences.ClientConfig.$(ConfigurationName)" "$(ProjectDir)ServiceReferences.ClientConfig" /Y

其中： $(ProjectDir) 是配置文件所在的項目目錄 $(ConfigurationName) 是活動的配置構建類型

編輯：有關如何以編程方式執行此操作的詳細說明，請參閱 Marc 的回答。

Answer 11

查看您是否將客戶端部分放置在正確的 web.config 文件中。 SharePoint 有大約 6 到 7 個配置文件。 http://msdn.microsoft.com/en-us/library/office/ms460914(v=office.14).aspx ( http://msdn.microsoft.com/en-us/library/office/ms460914%28v =office.14%29.aspx )

發布這個你可以簡單地嘗試

ServiceClient client = new ServiceClient("ServiceSOAP");