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)
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.
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)
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)
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)
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)