The Design And Implementation Of Web Component

With the rapid development of Internet, more and more application systems based on Internet appeared and the scope of the interaction between component was extended and distributed on the whole Internet. Meanwhile, Internet has some characters such as heterogeneous, opening, dynamics and more changerable and the component technique can't accommodate to these characters. So components need to combine with other related techniques and at the same time they themselves need profound development. On the circumstance, the concept Web component appears.The traditional component description can't accommodate to the component development in the Internet environment. To solve this problem, this paper did some research on the web component description. We presented the structure of the web component, summarized the characters and functions of web component and generalized the description model. In the end, we designed the description language of web component - WebCDL.1 We studied the description of software component and the structure, characters and functions of web component on the circumstances of Internet.2 On the basis of study of traditional component description and operation mechanism of Internet, We abstracted and summarized the description model of web component.3 We researched fully WSDL of Webservices, then expanded WSDL and designed web component description language - WebCDL. In the end, we gave an example of the rain query web component description in the field of water conservancy.