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Developer's Guide to Building XML-based Web Services with the Java 2 Platform, Enterprise Edition (J2EE)

Web services using XML standards is a new paradigm in the way B2B collaborations are modeled. It provides a conceptual and architectural foundation which can be implemented using a variety of platforms and products. Today, developers can use the Java 2 Enterprise Edition (J2EE) to build XML-based web services. | EJB J2EE and XML Web Services Expertise Developer s Guide to Building XML-based Web Services with the Java 2 Platform Enterprise Edition J2EE By James Kao June 2001 Prepared for Sun Microsystems Inc. Page 1 Developer s Guide to Building XML-based Web Services with the Java 2 Enterprise Edition 2001 The Middleware Company http www.middleware-company.com Table of Contents I. Executive Summary.3 II. Introduction.3 III. Overview .3 IV. Client Tier Connectivity.5 Business Partner Connectivity.6 Thin Client Connectivity.14 Thick Client Connectivity.15 V. Implementing Web Services.15 Data Translation and Transformation.15 Shared Context.16 Business Layer.16 VI. Performing Back-End Integration.18 Database Connectivity.19 Legacy System Connectivity.19 Business Partner Connectivity.19 VIII. Conclusion.21 Page 2 Developer s Guide to Building XML-based Web Services with the Java 2 Enterprise Edition 2001 The Middleware Company http www.middleware-company.com I. Executive Summary Web services using XML standards is a new paradigm in the way B2B collaborations are modeled. It provides a conceptual and architectural foundation which can be implemented using a variety of platforms and products. Today developers can use the Java 2 Enterprise Edition J2EE to build XML-based web services. They can leverage existing J2EE technologies to build a complete and fully interoperable web service that complies with XML standards. Without radical reengineering and without rebuilding a proven J2EE system developers can construct complex and powerful web services applications. II. Introduction A web service is an application that accepts requests from other systems across the Internet or an Intranet mediated by lightweight vendor-neutral communications technologies. These communications technologies allow any network-enabled systems to interact. As technologies mature a web service will encompass additional special functionality geared towards performing multiparty B2B collaboration. Web .