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Ajay Vohra

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The Apache Jakarta POI project provides components for the access and generation of Excel documents. The POI HSSF API is used to generate Excel Workbooks and to add Excel spreadsheets to a workbook. An Excel spreadsheet consists of rows and cells. The layout and fonts of a spreadsheet are also set with the POI HSSF API. A database table is often required to be presented in an Excel spreadsheet. Also, a developer's requirement could be to store an Excel spreadsheet in a database table. The Apache POI HSSF project is an API to create an Excel spreadsheet. The data in the Excel spreadsheet generated with the POI HSSF project may be static data in an XML document, or dynamically retrieved data from a database. Also, an Excel document may be converted to an XML document or be stored in a database. In this tutorial we will discuss the procedure to create an Excel spreads... (more)

Configuring BEA WebLogic 8.1 JDBC Connectivity

This article describes the configuration of various JDBC-related features in the BEA WebLogic 8.1 Server. Although we use Oracle 8.1.7 as our example database management system (DBMS), the general concepts are easily transferable to other relational databases as long as the databases in question provide connectivity through JDBC. Introduction JDBC is a standard Java API that is used directly or indirectly by almost all J2EE applications that require database access. In BEA WebLogic 8.1, configuring JDBC connectivity consists of creating and configuring two main artifacts - JDBC ... (more)

The Benefits of Virtualized WebLogic Clustering

Across the BEA product family, the principle mechanism for meeting the twin requirements of scalability and availability for business-critical applications is clustering WebLogic application servers. So clustering WebLogic application servers plays a foundational role across all BEA products and provides the underpinnings for the AquaLogic Service Bus that provides a services infrastructure for Service Oriented Architecture (SOA). WebLogic clustering does a competent job of meeting the principal twin goals of scalability and availability, but injects some new problems into the mix... (more)

JDJ Feature — Java API for XML Web Services (JAX-WS)

WebLogic Server 10 Technology Preview supports JEE 5. A feature of JEE 5 is the Java API for XML Web Services (JAX-WS) used to create Web Services and Web Service clients. WebLogic Server 10 provides the jwsc task to create the Web Service artifacts and the clientgen task to create the artifacts for Web Service clients. In this article we'll create an example JAX-WS 2.0 Web Service in WebLogic Server 10 Technology Preview. JAX-WS is an API to create Web applications and Web Services using the XML-based Web Services functionality. To create a Web Service first create a Service En... (more)

Configuring Eclipse for Remote Debugging a WebLogic Java Application

A J2EE application deployed in the WebLogic server may be debugged in the Eclipse IDE with the remote debugger provided by Eclipse. Without a debugger the error message has to be obtained from the application server error log to debug the application. With the remote debugger provided by Eclipse, exception breakpoints may be added to the application file to debug. When an application is run in WebLogic and the application generates an error, the application gets suspended and the Eclipse IDE Debug perspective displays the error. In this tutorial we will debug a WebLogic Applicat... (more)