第13章Symbian网络应用开发-[公司名称]ppt课件

1、Symbian网络运用开发.主要内容Symbian通讯体系构造Socket运用开发HTTP协议运用开发Symbian通讯体系构造Socket运用开发客户端/效力器程序Socket运用开发套接字效力器会话套接字效力器会话类RSocketServ m_sockServ;User:LeaveIfError(m_sockServ.Connect();网络衔接纳理类RConnection Socket运用开发套接字RSocket m_socket;User:LeaveIfError( m_socket.Open( m_socketServ,KAfInet,KSockStream,KProtocolIne

2、tTcp ) );m_socket.Connect( serverAddr , iStatus );/接纳和发送数据void Recv(TDes8& aDesc,TUint flags,TRequestStatus& aStatus);void Recv(TDes8& aDesc,TUint flags,TRequestStatus& aStatus,TSockXfrLength& aLen);void RecvOneOrMore(TDes8& aDesc,TUint flags,TRequestStatus& aStatus,TSockXfrLength& aLen);void Send(c

3、onst TDesC8& aDesc,TUint someFlags,TRequestStatus& aStatus,TSockXfrLength& aLen);Socket运用开发域名解析根本过程1创建域名解析器实例RHostResolver m_resolver;/解析结果TNameEntry m_nameEntry;/被解析器找到的域名记录TNameRecord m_nameRecord; 2翻开域名解析器User:LeaveIfError( m_resolver.Open( m_socketServ,KAfInet, KProtocolInetUdp ) );Socket运用开发域名解

4、析根本过程3发送域名解析恳求TBuf serverName;serverName.Append(_L(sohu);m_resolver.GetByName( serverName, m_nameEntry, iStatus );Socket运用开发域名解析根本过程4处置域名解析结果void CConnection:RunL()m_resolver.Close();if ( iStatus = KErrNone )/ 域名解析胜利m_nameRecord = m_nameEntry(); /取出域名记录ConnectL( TInetAddr:Cast( m_nameRecord.iAddr ).

5、Address() );else/ 域名解析失败/ 做错误处置Socket运用开发平安套接字运用平安套接字的根本过程：1建立和翻开一个RSocket套接字运用RSocket:Open翻开一个TCP/IP套接字RSocket。运用RSocket:Connect()衔接效力器。2由RSocket句柄创建一个CSecureSocket对象3在平安套接字上调用StartClientHandshake()4运用CSecureSocket的Send()和Recv()平安的传输数据 HTTP协议运用开发HTTP会话RHTTPSession iSession;/在类的ConstructL()方法中，翻开会话i

6、Session.OpenL();HTTP协议运用开发HTTP事务事务运转在会话上事务由恳求和呼应组成HTTP事务类RHTTPTransaction侦听器接口类class MHTTPTransactionCallbackpublic:virtual void MHFRunL(RHTTPTransaction aTransaction, const THTTPEvent& aEvent) =0;virtual TInt MHFRunError(TInt aError, RHTTPTransaction aTransaction, const THTTPEvent& aEvent) =0;HTTP协议运用开发HTTP事务事务运转在会话上事务由恳求和呼应组成HTTP事务类RHTTPTransaction侦听器接口类class MHTTPTransactionCallbackpublic:virtual void MHFRunL(RHTTPTransaction aTransaction, const THTTPEvent& aEvent