BEA 7 manual JavaServer Pages JSPs and Servlets

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2 Upgrading WebLogic Server 4.5 and 5.1 to Version 7.0

See weblogic.xml Deployment Descriptor Elements in Assembling and Configuring Web Applications.

JavaServer Pages (JSPs) and Servlets

This section contains information specific to JSPs and servlets that may be pertinent to your applications.

„Some changes will be necessary in code (both Java and HTML) where the code refers to URLs that may be different when servlets and JSPs are deployed in a Web Application other than the default Web Application. See Administration and Configuration in Programming WebLogic Server HTTP Servlets for more information. If relative URLs are used and all components are contained in the same Web Application, these changes are not necessary.

„Only serializable objects may be stored in a session if your application is intended to be distributable.

„You must convert your weblogic.properties file to XML attributes in web.xml and\or weblogic.xml. For additional information on this process, see the conversion section of the Console Help.

„Access control by an ACL has been replaced with security-constraint based access control in the web application deployment descriptor.

„Server-side-includes are not supported. You must use JSP to achieve this functionality.

„WebLogic Server 7.0 is fully compliant with the Servlet 2.3 specification.

„Update your web.xml file so that it uses the following new classes:

weblogic.servlet.proxy.HttpClusterServlet

instead of

weblogic.servlet.internal.HttpClusterServlet

and

weblogic.servlet.proxy.HttpProxyServlet

instead of

weblogic.t3.srvr.HttpProxyServlet

2-14BEA WebLogic Server 7.0 Upgrade Guide

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BEA 7 manual JavaServer Pages JSPs and Servlets

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.