What is the application server?
All enterprise-level applications must be built in a complete system framework that provides five key technologies that the system framework provides enterprise calculations:
Trading Integrity Reliability Interoperability Safety Scalability provides servers for these underlying key services. The emergence of the application server makes the application software developer when developing enterprise applications, there is no need to consider the realization of the transaction implementation, security management, and focus on the design of business logic, reducing development risks and cost, and shortens development. time.
J2EE (Java 2 Platform Enterprise Edition J2EE is a set of technical specifications made by the inventors of Java languages, SUN proposed a technical specification, which detailed interface between various components of large multi-layer distributed application systems using Java languages standard. The J2EE architecture is shown below:
The left side of the figure is the client, and the right side is some underlying service, the middle is the commercial logic and web representation of these underlying services, such as EJB, Servlet, and JSP. To ensure complete openness and compatibility, J2EE details the interface criteria for implementing a J2EE distributed application, such as the interface criteria between EJB component developers and application server developers, so that all J2EE specifications are developed. Application does not depend on any specific application server, can run on any application server that supports J2EE standards.
Apusic Application Server APUSIC Application Server is developed and has independent intellectual property by APUSIC. Apusic Application Server is written in pure Java language, supports a variety of platforms, including Linux, UNIX, Windows, etc., is the first application server for the first full support J2EE1.2 specification. J2EE technology supported by APUSIC includes:
ENTERPRISE JAVABeans Servlets JavaServer Pages Transcations JDBC XML JAVA Message Service In addition, the APUSIC Application Server implements various encryption algorithms defined in the JCE to provide SSL encrypted transmission.
The enterprise-level application architecture based on APUSIC Application Server is as follows:
