Currently, the three most commonly used dynamic web page languages are: ASP (Active Server Pages), PHP (HyperText Preprocessor) and JSP (Java Server Pages).
Both JSP and ASP are programs that can be embedded in HTML, but they are fundamentally different.
(1) Support for WEB server
Most common WEB servers, such as Apache, Netscape, and Microsoft IIS, support JSP pages. Only Microsoft's own Microsoft IIS and Personal Web Server support ASP.
(2) Platform support
JSP is platform independent, as long as the platform that general Java programs can run supports JSP programs. The Windows platform can support ASP well, but ASP's dependence on the Win32-based model makes it difficult to port to other platforms.
(3) Component model
JSP is built on reusable and cross-platform components, while ASP uses a COM component model based on Win32.
(4) Scripting language
JSP can use Java programming language or JavaScript as the scripting language, while ASP uses VBScript or Jscript as the scripting language.
(5) Security
JSP uses the Java security model, while ASP uses the Windows NT security architecture.
(6) Connection with Access database
JSP uses JDBC to establish a connection with the Access database, while ASP uses Data Active Object
(7) User-customized tags
JSP can be expanded using a custom tag library, but there is no user-customized tag library in ASP and cannot be expanded.
(8) Efficiency
In the database test, JSP and ASP executed 1000 Insert Update Delete in Oracle8 respectively. JSP takes 13 seconds, while ASP takes 73 seconds.
Comparison between JSP and PHP
Both JSP and PHP are languages that can be used across platforms and can be executed normally on Windows, UNIX and Linux web servers. They also support general WEB servers such as IIS and Apache. Users do not need to change the code when changing platforms and can use it immediately, but there is an essential difference between the two.
(1) Scope of application
JSP is suitable for large-scale e-commerce sites. It can obtain scale support through SUN Java's Java Class and EJB, and obtain structural support through EJB/CORBA and Application Servers of many manufacturers. PHP lacks scale support and multi-layer structure support, and The provided database interface support is not uniform, making it more suitable for some small commercial sites.
(2) Database access
JSP connects to the database through JDBC technology. If a specific database does not have a JDBC driver and only has an ODBC driver, Java can provide a JDBC-ODBC bridge to convert JDBC to ODBC calls. PHP can be compiled to connect to multiple databases. function, it is perfectly combined with MySQL, and developers can write peripheral functions to access the database indirectly. However, the database interface support they provide is different from each other, such as the interfaces with Oracle, MySQL and Sysbase.
(3) Efficiency
In the database test, JSP and ASP executed 1000 Insert Update Delete in Oracle8 respectively. JSP takes 13 seconds, while PHP takes 69 seconds.
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