Shulou(Shulou.com)06/02 Report--

In this issue, the editor will bring you about how to parse the usage of the XML DOM document object model. The article is rich in content and analyzes and narrates it from a professional point of view. I hope you can get something after reading this article.

To give you a brief introduction, XML DOM,XML DOM is the abbreviation of XMLDocumentObjectModel, that is, the XML document object model.

XML DOM

XML DOM defines a standard way to access and process XML documents.

XML DOM is the abbreviation of XMLDocumentObjectModel, that is, the XML document object model.

A brief introduction to DOM

What is DOM?

DOM is recommended by the W3C (World wide Web Consortium).

DOM defines standards for accessing documents such as XML and XHTML.

"the W3C document object Model (DOM) is a platform-and language-neutral interface that enables programs and scripts to dynamically access and update the content, structure, and style of documents."

W3CDOM is divided into 3 different parts / levels (parts/levels):

Core DOM

Standard model for any structured document

XML DOM

Standard model for XML documents

HTML DOM

Standard model for HTML documents

DOM defines the objects and attributes of all document elements, as well as the methods (interfaces) that access them.

What is HTML DOM?

HTML DOM defines the objects and attributes of all HTML elements, as well as the methods (interfaces) that access them.

What is XML DOM?

XML DOM is:

Standard object Model for XML

Standard programming interface for XML

Neutral to platform and language

W3C standard

XML DOM defines the objects and attributes of all XML elements, as well as the methods (interfaces) that access them.

In other words:

XML DOM is the standard for getting, changing, adding, or deleting XML elements.

II. XML DOM node

Each component in the document is a node.

Node

According to the DOM,XML document, each component is a node.

The DOM stipulates that:

The entire document is a document node

Each XML tag is an element node

Text contained in the XML element

DOM instance

Please look at the following XML file (books.xml):

= =

EverydayItalian GiadaDeLaurentiis 2005 30.00 HarryPotter JK.Rowling 2005 29.99 XQueryKickStart JamesMcGovern PerBothner KurtCagle JamesLinn VaidyanathanNagarajan 2003 49.99 LearningXML ErikT.Ray 2003 39.95

= =

In the above XML, the root node is. All other nodes in the document are included in.

The root node has four nodes.

* there are four nodes:, and, each of which contains a text node, "EverydayItalian", "GiadaDeLaurentiis", "2005" and "30.00".

Text is always stored in the text node

A common mistake in DOM processing is to assume that the element node contains text.

However, the text of the element node is stored in the text node.

In this example: 2005, the element node, has a text node with a value of "2005".

"2005" is not the value of the element!

The above is the editor for you to share how to parse the XML DOM document object model usage, if you happen to have similar doubts, you might as well refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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