3.4. SOAP Envelope element

发布时间 : 2025-10-25 13:33:34 UTC      

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The Envelope element of the mandatory SOAP is the root element of the SOAP message.

3.4.1. SOAP Envelope element

The required Envelope element of SOAP is the root element of the SOAP message. It defines an XML document as an SOAP message.

Example



  ...
  Message information goes here
  ...

3.4.2. Xmlns:soap Namespace

The SOAP message must have an Envelope element associated with the namespace “ http://www.w3.org/2001/12/soap-envelope ”.”

If a different namespace is used, the application will have an error and discard the message.

3.4.3. EncodingStyle attribute

The encodingStyle property of SOAP is used to define the data types used in the document. This attribute can appear in any SOAP element and is applied to the contents of the element and to all child elements of the element.

There is no default encoding for SOAP messages.

Grammar

soap:encodingStyle="URI"

Example



  ...
  Message information goes here
  ...

Principles, Technologies, and Methods of Geographic Information Systems

 102

In recent years, Geographic Information Systems (GIS) have undergone rapid development in both theoretical and practical dimensions. GIS has been widely applied for modeling and decision-making support across various fields such as urban management, regional planning, and environmental remediation, establishing geographic information as a vital component of the information era. The introduction of the “Digital Earth” concept has further accelerated the advancement of GIS, which serves as its technical foundation. Concurrently, scholars have been dedicated to theoretical research in areas like spatial cognition, spatial data uncertainty, and the formalization of spatial relationships. This reflects the dual nature of GIS as both an applied technology and an academic discipline, with the two aspects forming a mutually reinforcing cycle of progress.