WebLogic Server 7.0 J2EE Application Types

WebLogic Server 7.0 J2EE Application Types

Applications on J2EE-compliant servers such as WebLogic Server 7.0 are created and deployed as one of the following four types: Web Applications, Enterprise JavaBeans, Enterprise Archives, and client applications. To port your existing components to WebLogic Server 7.0, create the appropriate J2EE deployment units. For more information on J2EE deployment units, see Deploying Web Applications as Part of an Enterprise Application in Assembling and Configuring Web Applications. Web Applications are usually a collection of servlets, JSPs, and HTML files, packaged as WAR files. Enterprise JavaBeans (packaged as JAR files) are server-side Java components written according to the EJB specification. Enterprise Archives (EAR files) contain all of the JAR and WAR component archive files for an application and an XML descriptor that describes the bundled components. Client Applications are Java classes that connect to WebLogic Server through Remote Method Invocation (RMI). Later sections discuss the aforementioned J2EE deployment units in greater detail.

Converting and Porting Your Existing Applications into Web Applications

In order to convert an application to a Web Application and then port it into a Web Application deployed on WebLogic Server 7.0, the application’s files must be placed within a directory structure that follows a specific pattern. For development, these files can be left in an exploded directory format. However, for production situations, it is highly recommended that you bundle your applications into a WAR file as a single Web Application. For more information on Web Applications see Understanding WebLogic Server J2EE Applications and Assembling and Configuring Web Applications.

The following sections provide information you need to know about porting and deploying Web Applications, including a procedure for porting a simple servlet from WebLogic Server 5.1 to WebLogic Server 7.0:

„“Web Applications Directory Structure” on page 2-10

BEA WebLogic Server 7.0 Upgrade Guide

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BEA manual WebLogic Server 7.0 J2EE Application Types

7 specifications

BEA 7, a significant product from BEA Systems, represents a cornerstone in enterprise application integration and service-oriented architecture. As a comprehensive solution for developing, deploying, and maintaining enterprise-level applications, it brings a host of features that cater to the needs of businesses seeking agility and reliability in their IT infrastructure.

One of the standout characteristics of BEA 7 is its robust support for service-oriented architecture (SOA). This enables businesses to create applications as loosely coupled services, facilitating easier integration and scalability. The platform's emphasis on middleware technologies allows organizations to streamline their IT operations, enhance interoperability, and reduce time to market for new applications.

BEA 7 includes a powerful application server that provides a reliable runtime environment for managing applications. Offering high availability and scalability, it can successfully handle the demands of high-volume transactions while ensuring optimal performance. The built-in clustering capability ensures that applications can remain operational even in the event of server failures, which is critical for mission-critical applications.

Another notable feature of BEA 7 is its capabilities for web services. With support for industry standards such as XML, SOAP, and WSDL, users can easily expose and consume services across diverse platforms. This allows businesses to take full advantage of an interconnected ecosystem and simplifies the process of integrating various applications and data sources.

Security is a paramount consideration in BEA 7, which includes strong authentication, authorization, and encryption mechanisms to protect sensitive data. The platform's comprehensive security features ensure compliance with regulatory requirements and protect against potential threats, which is particularly important for sectors handling sensitive information, such as finance and healthcare.

BEA 7 also embraces innovative technologies such as the Java EE platform, facilitating the development of cross-platform applications. The integrated development environment (IDE) offers numerous tools for developers, making it easier to design, debug, and deploy applications. Developers benefit from built-in support for commonly used frameworks and libraries, improving productivity and enabling rapid application development.

In summary, BEA 7 stands out as a powerful enterprise solution, distinguished by its support for SOA, robust application server capabilities, web services integration, strong security features, and a developer-friendly environment. These attributes make BEA 7 an essential tool for organizations aiming to enhance their operational efficiency and adapt to the increasingly dynamic business landscape.