JSP Learning Notes (a)! -------Understand JSP Technology!

js| Note 1 Using JSP technology, a user can send an HTTP request to an executable program instead of a static HTML file. The server will run this qualified program immediately, respond to user input, return the processing results to the client, or make changes to the records of the data. With this model, it is possible to interact effectively between the server and the customer.
2 JSP technology is: the use of mssql,oracle and other mass database system as a data warehouse, with the high Performance servlet server program as the background Master program, JSP program in the foreground, the servlet to accept user input, Call different JSP programs to the client to feedback the information separately. Jsp/servlet delivers data over HTTP connections on both the server and the client, Jsp/servlet does not use JDBC technology to directly access the database, but instead passes the parameters to the JavaBeans and EJB components that were prepared beforehand, and they manipulate the database. In this way, the data encapsulation within the system is protected, and the JavaBeans and EJB components can also distribute the transaction to another component to process, and finally return the result of the database by
Jsp/servlet sent to the front-end display, such a model is easy to achieve distributed network Computing, many enterprise applications can be made into JavaBeans components, can be reused, so that the encapsulation of some key operations, but also facilitate the developer, improve the development speed, Web site scalability, Security has also been well handled.