suresh Key Components of IBM WebSphere Application Server Architecture
The IBM WebSphere Application Server architecture consists of several key components that work together to provide a robust and reliable platform for running and managing Java applications.
1. Web Container
The Web Container is responsible for managing and executing web applications deployed on the WebSphere server. It handles HTTP requests, session management, and servlet lifecycle management.
2. EJB Container
The EJB Container hosts Enterprise JavaBeans components and manages their lifecycle, transaction management, and security. It provides a runtime environment for executing business logic components.
3. Database Connectivity
WebSphere Application Server supports database connectivity through JDBC drivers, allowing applications to interact with various database systems.
4. JMS Messaging
Java Message Service (JMS) is used for asynchronous messaging between components in a distributed application. WebSphere includes a built-in JMS engine for message queuing and delivery.
5. Security Infrastructure
WebSphere provides a robust security infrastructure that includes authentication, authorization, and encryption mechanisms to secure applications and data.
6. Clustering and Load Balancing
WebSphere supports clustering and load balancing to provide high availability and scalability for applications. Multiple server instances can be clustered together to distribute the load and ensure failover in case of server failures.
Interaction Among Components
These components interact with each other through well-defined APIs and protocols. For example, the Web Container may invoke EJB components to perform business logic operations, while the EJB Container may interact with the database for data persistence.
In summary, the key components of the IBM WebSphere Application Server architecture work together seamlessly to provide a comprehensive platform for running enterprise Java applications.
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