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This article mainly introduces "what is ADO.NET XML Web service". In daily operation, I believe many people have doubts about what ADO.NET XML Web service is. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful for you to answer the doubts about "what is ADO.NET XML Web service?" Next, please follow the editor to study!

In order to succeed in network diversity, XML Web services must be independent of the operating system, object model, and programming language of their choice. Moreover, in order for XML Web services to be as widely accepted as other Web-based technologies, they must be loosely coupled: if only the commands used in the two systems understand the previously mentioned self-describing text-based messages, then the two systems are considered loosely coupled. On the other hand, tightly coupled systems use a large number of customized software to enhance communication between systems, and need to know more about each other.

Ubiquitous communication: it is unlikely that individuals will be able to build an operating system or integrate the ability to access the Internet in the near future, so this requires a ubiquitous communication channel. Similarly, the ability to connect almost any system and device to the Internet will ensure that such systems and devices can be used by other systems or devices connected to the Internet. Common data format: by adopting existing open standards rather than proprietary closed-loop communication methods, any system can support the same open standards that can understand XML Web services. Using self-describing text-based messages, XML Web services and their customers can share these messages without knowing the composition of each underlying system, which will be able to communicate between separate and completely different systems. The XML Web service uses XML to implement this function. XML Web services use an infrastructure that provides the following functions: a discovery mechanism for locating XML Web services, a service description for defining how these services are used, and a standard connection format for communication.

ADO.NET XML Web services infrastructure

Infrastructure block function: the XML Web service directory XML Web service directory provides a central address for locating XML Web services provided by other organizations. XML Web service directories such as UDDI registrations perform this function. Clients of XML Web services can reference the XML Web service directory or not refer to the XML Web service directory.

XML Web Service Discovery XML Web Service Discovery is the use of Web Services description language (WSDL) to locate or discover one or more documents that describe a particular XML Web service. The DISCO specification defines the rules for location service description. If the XML Web service customer knows the location of the service description, they can bypass the discovery step. XML Web service description in order to understand how to interact with a particular XML Web service, you need to provide a description to define the interactions supported by the XML Web service. XML Web service clients must know how to interact with a XML Web service between being able to use it. XML Web service connection format to enable general communication, XML Web services communicate using an open connection format, which is understood by any system that supports the most common Web standards. SOAP is the key protocol for XML Web service communication.

ADO.NET XML Web service catalog

Like using any other resource on the Internet, the XML Web service directory cannot find a particular XML Web service without certain lookup methods. The XML Web service directory provides a central address on which XML Web service providers can publish information about the XML Web services they provide. Such a directory can even be the XML Web service itself, which can be programmatically accessed and provide search results in response to queries from XML Web service clients. It may be necessary to use a XML Web service catalog to locate an organization that provides XML Web services for a specific purpose, or to determine what XML Web services are provided by a particular organization.

The UDDI (Unified description Discovery and Integration Specification) specification defines a standard way to publish and discover information about XML Web services. The XML schema associated with UDDI defines four information types that allow developers to use a published XML Web service. These are: business information, service information, binding information, and other specification information for services. As the core component of UDDI project, UDDI Business Registry (Business Registration) allows business programming to locate information about XML Web services published by other organizations. Developers can use UDDI Business Registry to locate discovery files and service descriptions.

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