October 2024
Intermediate to advanced
1060 pages
29h 12m
German
Content preview from C# 9.0 in einer Kurzfassung
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Kapitel 16. Networking
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.NET bietet in den Namensräumen von System.Net.* eine Vielzahl von Klassen für die Kommunikation über Standard-Netzwerkprotokolle wie HTTP, TCP/IP und FTP. Hier ist eine Zusammenfassung der wichtigsten Komponenten:
Eine
WebClientFassadenklasse für einfache Download/Upload-Operationen über HTTP oder FTPWebRequestundWebResponseKlassen für die Steuerung von HTTP- oder FTP-Operationen auf der Client-SeiteHttpClientfür die Nutzung von HTTP-Web-APIs und RESTful-DienstenHttpListenerzum Schreiben eines HTTP-ServersSmtpClientzum Erstellen und Versenden von E-Mail-Nachrichten über SMTPDnsfür die Umwandlung zwischen Domänennamen und AdressenTcpClientDie KlassenUdpClient,TcpListenerundSocketermöglichen den direkten Zugang zu den Transport- und Netzwerkschichten.
Diese Typen sind alle Teil des .NET Standards 2.0, was bedeutet, dass Universal Windows Platform (UWP)-Anwendungen sie nutzen können. UWP-Anwendungen können auch die Windows Runtime (WinRT)-Typen für die TCP- und UDP-Kommunikation in Windows.Networking.Sockets verwenden, was wir im letzten Abschnitt dieses Kapitels demonstrieren. Diese haben den Vorteil, dass sie die asynchrone Programmierung fördern.
Die .NET-Typen in diesem Kapitel befinden sich in den Namensräumen System.Net.* und System.IO.
Netzwerkarchitektur
Abbildung 16-1 veranschaulicht die .NET-Netzwerktypen ...
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