Introduction to the first JSP

Introduction to the first JSP

JSP: Dynamic technical standard. Adding Java program Fragments (scriptlet) and JSP tags to a traditional web page HTML file (*.htm,*.html) makes up a JSP Web page. Java program fragments can manipulate the database, redirect the Web page and send e-mail, and so on, to create a dynamic Web site required functions. Server-side language: All program operations are performed on the server side, and the results are displayed to the user in the form of an HTML page.

The full name of the JSP is Java Server page, which implements Java expansion in HTML syntax (in <%%> form). When a Web server encounters a request to access a JSP Web page, it executes the program segment first, and then returns the execution result along with the HTML code in the JSP file to the client. Inserted Java program segments can manipulate databases, redirect Web pages, and more to achieve the functionality needed to build dynamic Web pages.

JSP technology uses the Java programming language to write tags and scriptlets of class XML to encapsulate the processing logic that produces dynamic Web pages. Web pages can also access the application logic of resources that exist on the server through tags and scriptlets. JSP separates the Web page logic from the display of the web design, supports reusable component-based design, and makes the development of Web-based applications quick and easy.

Java servlet is the technical foundation of JSP, and the development of a large Web application requires Java servlet and JSP mates to complete. JSP has the simple and easy-to-use Java technology, completely object-oriented, platform-independent and safe and reliable.

。

Introduction to the first JSP