Talk about the understanding of XML? Describe the role of the Web. xml file in an application?

Talk about the understanding of XML? Describe the role of the Web. xml file in an application?

Solution: XML (extensible Markup Language) can extend markup language, which, like HTML, is SGML (Standard generalized Markup Language, standardized universal Markup language). XML is a cross-platform, content-dependent technology in an Internet environment, and is a powerful tool for the current processing of structured document information. Extensible Markup Language XML is a simple data storage language that uses a series of simple tags to describe data that can be built in a convenient way, although XML occupies more space than binary data, but XML is extremely simple and easy to master and use.

The role of Web. XML is to configure the Welcome page, Servlet,filter,listener, etc.

Talk about the understanding of XML? Describe the role of the Web. xml file in an application?