Advantages of JSP: Application Scope and Performance Comparison

Currently, the four most common dynamic web page languages are ASP (Active Server Pages), ASP. NET, JSP (Java Server Pages), and PHP (Hypertext Preprocessor ).

Advantages of JSP:

1. Separate content generation and display

With JSP technology, Web page developers can use HTML or XML tags to design and format the final page. Use JSP identifiers or small scripts to generate dynamic content on the page. The logic of the generated content is encapsulated in the identifiers and JavaBeans components and bundled in small scripts. All scripts run on the server. If the core logic is encapsulated in identifiers and Beans, other people, such as Web administrators and page designers, can edit and use JSP pages without affecting content generation.

On the server side, the JSP Engine interprets JSP identifiers and small scripts to generate the requested content, for example, accessing the JavaBeans component, using the JDBCTM technology to access the database, or including files ), and the results are sent back to the browser in the form of HTML or XML) pages. This helps the author protect his own code and ensure the full availability of any HTML-based Web browser.

2. Emphasize reusable components

The vast majority of JSP pages depend on reusable, cross-platform components JavaBeans or Enterprise JavaBeansTM components) to execute more complex processing required by applications. Developers can share and exchange components that perform common operations, or make these components used by more users or customer groups. The Component-Based Approach accelerates the overall development process and balances various organizations in their development efforts with their existing skills and optimization results.

3. Simplified page development with logo

Web page developers are not all programmers familiar with the scripting language. The assumerver Page technology encapsulates many functions that are required for dynamic content generation in easy-to-use and JSP-related XML identifiers. The standard JSP mark can access and instantiate the JavaBeans component, set or retrieve component attributes, download the Applet, and execute functions that are more difficult to encode and consume in other ways.

Through the development of a custom identification library, JSP technology can be expanded. In the future, third-party developers and others can create their own identification libraries for common functions. This allows Web page developers to work with familiar tools and components that execute specific functions like identifiers.

JSP technology can easily be integrated into a variety of application architectures to take advantage of existing tools and techniques and extend to support enterprise-level distributed applications. As part of the Java technology family and the Java 2 Enterprise Edition architecture), JSP technology can support highly complex Web-based applications.

Because the built-in scripting language of JSP pages is based on the Java programming language, and all JSP pages are compiled into Java Servlets, JSP pages have all the advantages of Java technology, including robust storage management and security.

As part of the Java platform, JSP features the Java programming language "one-time writing, running everywhere. As more and more vendors add JSP support to their products, you can use the servers and tools you select. Changing tools or servers does not affect the current application. JSP has obvious advantages.

Application Scope

Because Apache is widely used in NT, Unix, and Linux, JSP has a wider operating platform. Although the NT operating system has a large market share, the Unix advantage in the server is still great, and the new Linux is not small. Porting from one platform to another, JSP and JavaBean do not even need to be re-compiled, Because Java bytecode is standard and platform-independent.

Performance Comparison

Some people have performed tests to test the cyclic performance and access to the Oracle database for ASP, PHP, and JSP languages.

In the cyclic performance test, JSP ended the 20000*20000 loop in just four surprising seconds. ASP and PHP test 2000*2000 cycles by an order of magnitude), but they use 63 s and 84 s respectively. See PHPLIB ).

In the database test, it takes 13 seconds for Oracle 8 to perform 1000 Insert, Update, Select, and Delete: Jsp, 69 seconds for Php, and 73 seconds for ASP. The performance advantage of JSP is also very obvious.

Foreground Analysis

PHP and ASP are widely used in China. ASP. net jsp is a relatively new technology and rarely used in China. ASP. NET is also growing. However, in foreign countries, JSP is already a popular technology, especially for e-commerce websites, mostly using JSP.

Among the four, JSP, PHP, and ASP. NET all have very good application prospects. Due to its security and operational efficiency, JSP has a great room for growth.

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