權限管理系統系列之WCF通信

目錄

權限管理系統系列之序言

首先說下題外話，有些園友看了前一篇【權限管理系統系列之序言】博客加了QQ群（186841119），看了我寫的權限管理系統的相關文檔（主要是介紹已經開發的功能），給出了一些建議，感覺非常好，希望后續有更多的園友能再接再厲給出更多的指導意見，在平常的開發中個人會結合你們的建議做出適當修改和完善，促進共同學習和進步。關于源碼共享的問題，可能會過段時間公布，不會現在公開源碼，個人還在不斷完善中，等完成差不多后會公開源碼。

客戶端與服務器的通信在一個程序中會占住關鍵的作用，處理起來可能會有很多方式，比如說Remoting、Socket、WebServices、WCF等等都可以實現。本人這幾種基本上都用過，Socket可能比較少些，一些聊天室的程序就會使用Socket，通過字節的形式接收數據；WebServices會WinCE開發中使用到，數據傳輸進行壓縮，這樣操作數據就比較方便，實時操作數據庫；Remoting主要用在MIS系統的客戶端與服務端通信，個人也說不出那種好；WCF也是我最近一兩年才接觸到的，公司現在使用的就是WCF通信的，個人感覺用WCF比較方便和簡單，實用起來使用三個函數（一個函數是檢測客戶端與服務器端的心跳，一個是用于登錄的、一個是公共的接口，基本上所有的客戶端和服務端的通信都是用這個函數），這個函數可以搞定所有的客戶端訪問服務端的方法，所有的SQL在服務端執行，便于維護和日常的分工，不過在平常的開發中也不會分客戶端和服務端的開發，基本上也是一個一個模塊進行分工的。

WCF的配置（包括客戶端和服務端）

客戶端的配置文件：

 1 <?xml version="1.0"?> 2 <configuration> 3   <system.serviceModel> 4     <bindings> 5       <netTcpBinding> 6         <binding name="TcpBinding_AppService" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:10:00" transactionFlow="false" transferMode="Buffered" transactionsession ordered="true" inactivityTimeout="00:10:00" enabled="false"/> 9           <security mode="None">10             <transport clientCredentialType="Windows" protectionLevel="EncryptAndSign"/>11             <message clientCredentialType="Windows"/>12           </security>13         </binding>14 15         <binding name="TcpBinding_MessageService" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:10:00" transactionFlow="false" transferMode="Buffered" transactionProtocol="OleTransactions" hostNameComparisonMode="StrongWildcard" listenBacklog="10" maxBufferPoolSize="10485760" maxBufferSize="10485760" maxConnections="10" maxReceivedMessageSize="10485760">16           <readerQuotas maxDepth="32" maxStringContentLength="10485760" maxArrayLength="10485760" maxBytesPerRead="10485760" maxNameTableCharCount="10485760"/>17           <reliableSession ordered="true" inactivityTimeout="00:10:00" enabled="false"/>18           <security mode="None">19             <transport clientCredentialType="Windows" protectionLevel="EncryptAndSign"/>20             <message clientCredentialType="Windows"/>21           </security>22         </binding>23 24       </netTcpBinding>25     </bindings>26     <client>27       <endpoint address="net.tcp://localhost:9090/AppService" binding="netTcpBinding" bindingConfiguration="TcpBinding_AppService" contract="IAppService" name="TcpBinding_AppService"/>28 29       <endpoint address="net.tcp://localhost:7070/MessageService" binding="netTcpBinding" bindingConfiguration="TcpBinding_MessageService" contract="IMessageService" name="TcpBinding_MessageService"/>30     </client>31   </system.serviceModel>32 </configuration>

服務端的配置文件：

 1 <?xml version="1.0"?> 2 <configuration> 3   <system.serviceModel> 4     <services> 5       <service behaviorConfiguration="Service.Behavior" name="Server.AppService"> 6         <endpoint address="AppService" binding="netTcpBinding" bindingConfiguration="AppServiceBinding" name="TcpBinding_AppService" contract="Server.IAppService" /> 7         <endpoint address="AppService/mex" binding="mexTcpBinding" contract="IMetadataExchange" /> 8         <host> 9           <baseAddresses>10             <add baseAddress="net.tcp://localhost:9090" />11           </baseAddresses>12         </host>13       </service>14       <service behaviorConfiguration="Service.Behavior" name="Server.MessageService">15         <endpoint address="MessageService" binding="netTcpBinding" bindingConfiguration="MessageServiceBinding" name="TcpBinding_MessageService" contract="Server.IMessageService" />16         <endpoint address="MessageService/mex" binding="mexTcpBinding" contract="IMetadataExchange" />17         <host>18           <baseAddresses>19             <add baseAddress="net.tcp://localhost:7070" />20           </baseAddresses>21         </host>22       </service>23     </services>24     <bindings>25       <netTcpBinding>26         <binding name="AppServiceBinding" maxBufferSize="10485760" maxReceivedMessageSize="10485760">27           <readerQuotas maxDepth="32" maxStringContentLength="10485760"28             maxArrayLength="10485760" maxBytesPerRead="10485760" maxNameTableCharCount="10485760" />29           <reliableSession ordered="true" inactivityTimeout="00:10:00"30             enabled="false" />31           <security mode="None" />32         </binding>33         <binding name="MessageServiceBinding" maxBufferSize="10485760" maxReceivedMessageSize="10485760">34           <readerQuotas maxDepth="32" maxStringContentLength="10485760"35             maxArrayLength="10485760" maxBytesPerRead="10485760" maxNameTableCharCount="10485760" />36           <reliableSession ordered="true" inactivityTimeout="00:10:00"37             enabled="false" />38           <security mode="None" />39         </binding>40       </netTcpBinding>41     </bindings>42     <behaviors>43       <serviceBehaviors>44         <behavior name="Service.Behavior">45           <serviceMetadata />46           <serviceDebug includeExceptionDetailInFaults="true" />47           <!--會話最大數量(并發會話)-->48           <serviceThrottling maxConcurrentSessions="100" />49           <!--數據序列最大量-->50           <dataContractSerializer maxItemsInObjectGraph="10485760" />51         </behavior>52         <behavior name="mexConfig">53           <serviceDebug includeExceptionDetailInFaults="True" />54           <serviceMetadata />55         </behavior>56       </serviceBehaviors>57     </behaviors>58   </system.serviceModel>59 </configuration>

以上為客戶端與服務端的配置文件，有兩個配置，一個為基本通信所用，一個為雙工通信所用。

介紹完配置文件后再介紹實現函數：

 1 [ServiceContract(Name = "IAppService", SessionMode = SessionMode.Allowed, Namespace = "http://tempuri.org/")] 2     public interface IAppService 3     { 4         //心跳 5         [OperationContract] 6         string HeartBeat(string echo); 7  8         //登錄 9         [OperationContract]10         bool Login(string UserName, string PassWord);11 12         //統一的應用業務請求調用，用于會話控制和調用轉發13         [OperationContract]14         Result AppCall(Request request);15     }16 17     #region * 推送消息18     [ServiceContract(CallbackContract = typeof(ipushClient))]19     public interface IMessageService20     {21         [OperationContract]22         void RegisterClient();23     }24 25     pu