Overview of WebLogic Server
WebLogic is a Java Application Server, a server-side Java program that provides a number of enterprise services for the benefit of the various applications and components running on the server. These services include the HTTP service, session handling, distributed naming and lookup, database access, persistence, transaction management, caching, concurrency, messaging, security, and much more. Server-side applications can use these services to implement their application logic, while external clients can either use the published services or directly interact with the applications. Once installed, WebLogic provides various command-line scripts for starting up the server. In fact, many of the WebLogic tools are Java programs that run within a console or as a GUI-based Java application. For this reason, stable releases of WebLogic Server are available on a wide range of platforms, including Windows 2000 Server/Professional, Windows XP, Solaris OS, Red Hat Linux, Tru64, HP-UX, IBM AIX, and other Unix variants.
WebLogic is designed to operate in a distributed environment. This means that you can easily set up an environment where multiple WebLogic instances are running on separate machines within the network, each configured with its own set of applications and services. Alternatively, you may need to design a “cluster” of WebLogic instances distributed across multiple machines over the network, each configured with the same set of applications and services. ...