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This article mainly explains "what is the principle of WCF application". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Next, let the editor take you to learn "what is the principle of WCF application"?

WCF is designed entirely to interact with other systems. This includes applications that can run on other operating systems and platforms. This is possible because WCF focuses on the nature of the message.

Innovatively, applications built on top of WCF can be used through TCP, HTTP, Named Pipes, and MSMQ with other applications that support WS-*, Basic Profile (BP), and XML messages. Developers are free to write components that extend WCF functionality, including writing custom extensions that allow WCF to communicate with systems that need to use binary message encoding (such as mainframe applications).

Traditionally, the need to interact with other platforms (such as java) has largely defined our application design. In the past, if we wanted to communicate with another platform, we either used ASMX or wrote our own interaction layer. WCF is different. From an interaction perspective, WCF is a single technology that can interact with several earlier technologies. WCF fulfills the promise of true interoperability through compatibility with WS-*, support for Rest architecture, and POX messaging style.

Performance

Distributed applications generally have performance costs; this cost is generally inefficient due to the nature of the technology. For example, .NET Remoting is a relatively efficient way to communicate for two .NET Framework applications. But he cannot interact with non-.NET Framework applications. ASMX, in other words, is not as efficient as Remoting, but it can interact with applications that are not .NET Framework. From an end-to-end perspective, MSMQ is not efficient, but the characteristics of queues can make up for the efficiency of applications that send messages. On the other hand, the total time cost of generating, sending, transmitting, and receiving an MSMQ message is negligible, but the persistence and reliability of MSMQ allows the sending application to ensure that the program does not need to generate and send messages, and wait for or receive messages. In applications that send messages, the network impact is an overall increase in throughput. The disadvantage of this technology is that it cannot interact with other message queuing systems. (there is a way to connect MSMQ to IBM's MQSeries.) Generally speaking, the distributed technology used in the distributed system has affected the performance of the system.

In contrast, WCF applications can provide different levels of interoperability habits and performance. For example, compared with Java-based Web service communication, WCF applications can communicate more efficiently with other WCF applications.

Expansibility

The common language runtime (CLR) has a deep secret. For example, JIT compilers, verification subsystems, and garbage collectors are almost *. Microsoft has released some information about the work of these subsystems. But the subsystem cannot be replaced by a third-party system. For example, all the. NET Framework programs are managed by the garbage collector We can and should know how to write code to efficiently take advantage of the features of the garbage collector. However, no one outside Microsoft can write .NET Framework applications that use CLR with their own garbage collector.

On the contrary, there is nothing magical about WCF. Don't let this distort your understanding of the capabilities of this platform. In contrast, WCF is extraordinarily powerful and in line with expectations in terms of its extensible design by large standards. WCF is designed to work with custom transport, channel, binding, coding, and architectural patterns. Chapter 4, "WCF 101," describes many extension points for WCF.

Configurability

One WCF feature worth showing off is its ability to support the complete configuration of XML files. Using this feature, you can configure the transport, address, behavior, and binding in the XML file. If the configuration file is updated, you can change the behavior of the WCF application without modifying any code. It is attractive from a management perspective because it allows non-developers to migrate, maintain, and modify the behavior of the application without getting involved in the development work. Reasonable use will greatly reduce the pressure and workload of the development team. If abused, it will bring unforeseen consequences.

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