Five scenarios for using XML

The following lists the five most popular usage of XML in applications. Although these do not include all potential applications of XML, they are at least some of the most important fields.
1. Data Exchange
Use XML in Application Program Data exchange with companies is no longer a secret and should undoubtedly be listed as the first.
So why is XML so important in this field? The reason is that XML uses elements and attributes to describe the number.
Data. During data transmission, XML always retains data structures such as parent/child relationships. Several applications
You can share and parse the same XML file without using the traditional String Parsing or disassembling process.
On the contrary, normal files do not describe each data segment (except in the header file), and do not retain the data link structure. Enable
Using XML for data exchange can make the application more flexible, because it can use location (the same as normal file) or metadata
To access XML data.
2. Web Services
Web services are one of the most exciting revolutions that allow the use of different systems and Programming Language People can interact with each other
Stream and share data. The Foundation is that the Web server uses XML to exchange data between systems. Common XML labels for exchanging data
For example, in Simple Object Access protoc
OL, soap) platform.
Soap can transmit messages between objects constructed in different programming languages. This means that a C # object can be associated with
Java objects for communication. This communication can even happen between objects running on different operating systems. DCOM
, Or Java RMI can only transmit messages between tightly coupled objects, while soap can transmit messages between loosely coupled objects.
Deliver messages.
3. Content Management
XML uses only elements and attributes to describe data, rather than data display methods. In this way, XML provides an excellent
Show method to mark content independent of platform and language.
XML files can be easily converted into various formats using languages like XSLT, such as HTML, WML, and PD.
F, flat file, EDI, and so on. XML can run on different system platforms and convert to different formats
The ability of the target file makes it an excellent choice in the content management application system.
4. Web Integration
More and more devices now support xml. Allows web developers
Use XML to transmit data.
Why is XML text directly sent to such a device? The purpose of this operation is to allow users to master more data on their own.
Display Mode to better experience the joy of practice. Conventional customer/service (C/S) methods to obtain data sorting or more
To change the display format, you must send an application to the server. XML can directly process the data without applying to the server.
Please query-two-way "Journey" like the returned result, and no database needs to be prepared on the device.
You can even modify the XML file on the device and return the result to the server. Imagine that one is mutually beneficial.
The Internet function and XML-based refrigerator will have a huge impact on the market. You don't have to get up early to get milk
Now!
5. Preparation
Many applications store the prepared data in various files, such as. ini files. Although this file format has been used
It has been used for many years and has been very useful, but XML still marks the preparation of data for the application in a better way. Use.
. Net classes, such as xmldocument and xmltextreader, mark the prepared data as XML to make it more
It is readable and can be easily integrated into the application system. Applications that use XML to prepare files can easily Process
The required data does not need to be re-compiled to modify and maintain the application system as other applications do.
As mentioned above, the five ways to use XML do not cover all scenarios.