WebService的利弊（国外英文资料）.docVIP

WebService的利弊（国外英文资料） WebService pros and cons Recently, several projects have been done using webservice, which is now a summary of its own practices and online profiles: The current web service is a hot topic. But what exactly is WebService? What are the advantages and disadvantages of WebService and should you use WebService? Under what circumstances should you not use WebService? We need to know it correctly. In fact, the main goal of WebService is cross-platform interoperability. In order to achieve this goal, WebService entirely based on XML (extensible markup language), XSD (XMLSchema) platform-independent, such as the standard of independent software vendors, is to create an interoperable, distributed application of the new platform. As you can see, in the following three scenarios, using WebService is a great benefit. Advantage 1: cross-firewall communication If the application is hundreds of thousands of users, and around the world, the communication between the client and the server will be a thorny problem. Because there is usually a firewall or proxy server between the client and the server. In this case, DCOM is not a simple one, and it is often not easy to publish a client program to a large number of users. The traditional approach is to use the browser as the client, writing down a stack of ASP pages, exposing the middle layer of the application to the end user. The result of this is that development is difficult and the program is difficult to maintain. , for example, add a new page in the application, you must first establish a good user interface (Web page), and at the back of the page, contains the business logic of the corresponding middle tier components, but also to build at least one ASP page, used to accept user input information, call the middle tier components, the result format to HTML forms, and finally to the results back to the browser. Client-side programming is much simpler if the client code is no longer so dependent on HTML forms