Welcome!

Java Authors: Liz McMillan, Pat Romanski, Yeshim Deniz, Carmen Gonzalez, Yakov Fain

Related Topics: Java, Weblogic, Eclipse

Java: Article

Configuring the WebLogic-Eclipse Plug-in

Designed to run the WebLogic Server from the Eclipse IDE

The WebLogic-Eclipse plug-in is designed to run the WebLogic Server from the Eclipse IDE. With the WebLogic-Eclipse plug-in, the WebLogic Server gets started and stopped from Eclipse. An application deployed in the WebLogic Server can be debugged from Eclipse with the plug-in. By installing the WebLogic plug-in in Eclipse the WebLogic Server can be configured and administered from the Eclipse IDE by setting the server classpath and JVM options in Eclipse.

Overview
A J2EE developer is commonly required to administer the WebLogic Server and debug applications deployed in the WebLogic Server. While the WebLogic Server administration console can start and stop the WebLogic Server, the administration console doesn't provide for setting the JVM options and the server classpath. The JVM options and server classpath have to be set in the startWebLogic script. And to debug an application deployed in the WebLogic Server, an IDE with a remote debugger is needed. With the WebLogic plug-in the WebLogic Server can be administered from the Eclipse IDE. In this tutorial we'll develop a J2EE application consisting of a Session EJB and a servlet, deploy the application in the WebLogic Server from the Eclipse IDE, and debug the application in Eclipse.

Preliminary Setup

Installing the WebLogic-Eclipse Plug-in
Now we'll install the WebLogic-Eclipse IDE. In the Eclipse IDE select Help>Software Updates>Find and Install. The Install/Update frame gets displayed. Select Search for new features to install and click on the Next button. The Install frame gets displayed. Click on the New Remote Site button to specify an update Web site from which to install a plug-in. In the New Update Site frame specify a name and the URL from which the WebLogic-Eclipse plug-in is installed. The URL for the WebLogic-Eclipse plug-in is https://eclipse-plug-in.projects.dev2dev.bea.com/update. An update site configuration gets added. Select the checkbox for EclipseWebLogic for "Sites to include in search" and click on the Next button. In the features to install frame select the WebLogic-Eclipse Feature and click on the Next button.

Select the license terms and click on the Next button. In the Install location frame the directory in which the WebLogic-Eclipse plug-in will be installed is specified. Click the Finish button to complete the configuration of the WebLogic plug-in. The JAR Verification frame is displayed. Click the Install button to install the WebLogic-Eclipse plug-in. Restart the Eclipse workbench for the plug-in to get installed. The WebLogic-Eclipse plug-in gets installed in the Eclipse IDE. The Run>Start WebLogic and Run>Stop WebLogic features get added to Eclipse.

Configuring the WebLogic-Eclipse Plug-in
After installing the WebLogic-Eclipse plug-in we'll configure the plug-in in the Eclipse IDE. First, create a project with which the WebLogic plug-in is to be configured. Select File>New>Project. In the New Project frame select Java>Java Project and click the Next button. In the Create a Java project frame specify a project name and click the Next button. In the Java Settings frame add a source folder for the project. Click the Add Folder button. In the New Source Folder frame specify a folder name. A message frame prompts to set the bin folder as the build output folder. Next, add the libraries required for the project. The example application requires the J2EE JAR in the classpath. Select the Libraries tab and click on the Add External JARs button.

Add the J2EE 1.4 j2ee.jar file to the project. The j2ee.jar gets listed in the project Libraries. Click the Finish button to complete the configuration of the project. A project gets added to the Eclipse IDE Package Explorer view.

Next, we'll specify a WebLogic Server configuration. Select Window>Preferences. The Preferences frame gets displayed. Select the WebLogic node. In the WebLogic preference page select the version of the WebLogic Server to be configured. Specify the different field values, which are listed in Table 1. The values may vary depending on the directory in which the server is installed and in which the domain is configured. Click on the Apply button to apply the specified values.

If any JAR files have to be added to the server classpath, select the WebLogic>Classpath node. JAR/Zip files or directories can be added before the WebLogic libraries or after the WebLogic libraries. Select the WebLogic>JavaVM Options node to specify JavaVM options. For example, modify the weblogic.ProductionModeEnabled property. Set the property value to false to start the server in development mode. Click on the Apply button to apply the JavaVM options.

Next, specify the projects to be debugged with the WebLogic Server configuration. Click on the Add button. Select the projects to be added to the plug-in configuration. To debug a project, the project has to be in the plug-in configuration. Click the OK button.

The selected projects get added to projects list. Click on the Apply button and then the OK button. The WebLogic plug-in gets configured with a project and the WebLogic Server.

Developing and Debugging a WebLogic Application
After configuring the WebLogic plug-in, develop a J2EE application to deploy and debug in the WebLogic Server. The example J2EE application consists of a Session EJB and a client servlet. The J2EE application is available in the resources zip file (source code for this article can be found by viewing the article online in the WLDJ archives, http://wldj.sys-con.com/read/issue/archives/, Vol. 5, iss. 2). Extract the resources zip file to a directory. In the Eclipse project EclipseWebLogic, which was configured in the previous section, import the src directory of the J2EE application with File>Import. In the Import frame select the File System node and click the Next button. In the File system frame select the directories/files to add to the project and click the Finish button. (See Figure 1)

The example J2EE application files get added to the project. Build the project with the Ant build.xml file. Right-click on the build.xml file and select Run>Ant Build. The J2EE application gets built and deployed in the WebLogic Server applications directory. Next, start the WebLogic Server in the Eclipse IDE with Run>Start WebLogic. The Session EJB/Servlet application gets deployed in the WebLogic Server as listed in the applications node.

Run the WebLogicServlet in the browser with the URL http://localhost:7001/weblogic/webLogicPlug-in. The output from the servlet is displayed in the browser. Next add an exception (a NullPointerException) to the client servlet to demonstrate the debugging feature of the WebLogic plug-in. In the WebLogicServlet servlet replace

out.println(sessionEJB.getEclipsePlug-in());

with

String str=null;
out.println(str.toString());

Add a breakpoint to the servlet with Run>Add Java Exception Breakpoint. In the Add Java Exception Breakpoint frame select the NullPointerException. Delete the previous build directory and build the application with the build.xml. Select the Debug perspective. In the Debug perspective the WebLogic Server is shown to be running at localhost host.

Run the example servlet (with the NullPointerException) in the browser. Because the servlet has an exception the server gets suspended and the Debug perspective displays the NullPointerException. The application can be debugged with the debug features in the Run menu item.

Conclusion
Thus the WebLogic Server gets administered from the EclipseIDE with the WebLogic plug-in and applications deployed in the server are debugged from the Eclipse IDE. A limitation of the WebLogic plug-in is that debugging JSPs isn't supported. The 2.0 version of the plug-in will have additional features.

More Stories By Deepak Vohra

Deepak Vohra is a Sun Certified Java 1.4 Programmer and a Web developer.

More Stories By Ajay Vohra

Ajay Vohra is a senior solutions architect with DataSynapse Inc.

Comments (4) View Comments

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


Most Recent Comments
Filipe Silva 09/21/06 12:41:45 PM EDT

The correct plugin URL is https://eclipse-plugin.projects.dev2dev.bea.com/update/

(no hyphen between "plug" and "in")

However, I can't find the source code (or resource files) referred in the text.

Eclipse News Desk 07/28/06 11:06:57 AM EDT

The WebLogic-Eclipse plug-in is designed to run the WebLogic Server from the Eclipse IDE. With the WebLogic-Eclipse plug-in, the WebLogic Server gets started and stopped from Eclipse. An application deployed in the WebLogic Server can be debugged from Eclipse with the plug-in. By installing the WebLogic plug-in in Eclipse the WebLogic Server can be configured and administered from the Eclipse IDE by setting the server classpath and JVM options in Eclipse.

Eclipse News Desk 07/28/06 10:10:33 AM EDT

The WebLogic-Eclipse plug-in is designed to run the WebLogic Server from the Eclipse IDE. With the WebLogic-Eclipse plug-in, the WebLogic Server gets started and stopped from Eclipse. An application deployed in the WebLogic Server can be debugged from Eclipse with the plug-in. By installing the WebLogic plug-in in Eclipse the WebLogic Server can be configured and administered from the Eclipse IDE by setting the server classpath and JVM options in Eclipse.

Krishma Singla 07/28/06 01:25:27 AM EDT

The plug-in update URL for Eclipse as mentioned in the article is not a valid one.
Is it compatible only with Eclipse 3.0?
I am trying it with Eclipse 3.2 but the URL seems to be invalid.

@ThingsExpo Stories
The Internet of Things (IoT) is going to require a new way of thinking and of developing software for speed, security and innovation. This requires IT leaders to balance business as usual while anticipating for the next market and technology trends. Cloud provides the right IT asset portfolio to help today’s IT leaders manage the old and prepare for the new. Today the cloud conversation is evolving from private and public to hybrid. This session will provide use cases and insights to reinforce the value of the network in helping organizations to maximize their company’s cloud experience.
SYS-CON Events announced today that Aria Systems, the recurring revenue expert, has been named "Bronze Sponsor" of SYS-CON's 15th International Cloud Expo®, which will take place on November 4-6, 2014, at the Santa Clara Convention Center in Santa Clara, CA. Aria Systems helps leading businesses connect their customers with the products and services they love. Industry leaders like Pitney Bowes, Experian, AAA NCNU, VMware, HootSuite and many others choose Aria to power their recurring revenue business and deliver exceptional experiences to their customers.

SUNNYVALE, Calif., Oct. 20, 2014 /PRNewswire/ -- Spansion Inc. (NYSE: CODE), a global leader in embedded systems, today added 96 new products to the Spansion® FM4 Family of flexible microcontrollers (MCUs). Based on the ARM® Cortex®-M4F core, the new MCUs boast a 200 MHz operating frequency and support a diverse set of on-chip peripherals for enhanced human machine interfaces (HMIs) and machine-to-machine (M2M) communications. The rich set of periphera...

The Internet of Things (IoT) is making everything it touches smarter – smart devices, smart cars and smart cities. And lucky us, we’re just beginning to reap the benefits as we work toward a networked society. However, this technology-driven innovation is impacting more than just individuals. The IoT has an environmental impact as well, which brings us to the theme of this month’s #IoTuesday Twitter chat. The ability to remove inefficiencies through connected objects is driving change throughout every sector, including waste management. BigBelly Solar, located just outside of Boston, is trans...
SYS-CON Events announced today that Matrix.org has been named “Silver Sponsor” of Internet of @ThingsExpo, which will take place on November 4–6, 2014, at the Santa Clara Convention Center in Santa Clara, CA. Matrix is an ambitious new open standard for open, distributed, real-time communication over IP. It defines a new approach for interoperable Instant Messaging and VoIP based on pragmatic HTTP APIs and WebRTC, and provides open source reference implementations to showcase and bootstrap the new standard. Our focus is on simplicity, security, and supporting the fullest feature set.
Predicted by Gartner to add $1.9 trillion to the global economy by 2020, the Internet of Everything (IoE) is based on the idea that devices, systems and services will connect in simple, transparent ways, enabling seamless interactions among devices across brands and sectors. As this vision unfolds, it is clear that no single company can accomplish the level of interoperability required to support the horizontal aspects of the IoE. The AllSeen Alliance, announced in December 2013, was formed with the goal to advance IoE adoption and innovation in the connected home, healthcare, education, aut...
SYS-CON Events announced today that Red Hat, the world's leading provider of open source solutions, will exhibit at Internet of @ThingsExpo, which will take place on November 4–6, 2014, at the Santa Clara Convention Center in Santa Clara, CA. Red Hat is the world's leading provider of open source software solutions, using a community-powered approach to reliable and high-performing cloud, Linux, middleware, storage and virtualization technologies. Red Hat also offers award-winning support, training, and consulting services. As the connective hub in a global network of enterprises, partners, a...
The only place to be June 9-11 is Cloud Expo & @ThingsExpo 2015 East at the Javits Center in New York City. Join us there as delegates from all over the world come to listen to and engage with speakers & sponsors from the leading Cloud Computing, IoT & Big Data companies. Cloud Expo & @ThingsExpo are the leading events covering the booming market of Cloud Computing, IoT & Big Data for the enterprise. Speakers from all over the world will be hand-picked for their ability to explore the economic strategies that utility/cloud computing provides. Whether public, private, or in a hybrid form, clo...
Software AG helps organizations transform into Digital Enterprises, so they can differentiate from competitors and better engage customers, partners and employees. Using the Software AG Suite, companies can close the gap between business and IT to create digital systems of differentiation that drive front-line agility. We offer four on-ramps to the Digital Enterprise: alignment through collaborative process analysis; transformation through portfolio management; agility through process automation and integration; and visibility through intelligent business operations and big data.
The Transparent Cloud-computing Consortium (abbreviation: T-Cloud Consortium) will conduct research activities into changes in the computing model as a result of collaboration between "device" and "cloud" and the creation of new value and markets through organic data processing High speed and high quality networks, and dramatic improvements in computer processing capabilities, have greatly changed the nature of applications and made the storing and processing of data on the network commonplace.
Be Among the First 100 to Attend & Receive a Smart Beacon. The Physical Web is an open web project within the Chrome team at Google. Scott Jenson leads a team that is working to leverage the scalability and openness of the web to talk to smart devices. The Physical Web uses bluetooth low energy beacons to broadcast an URL wirelessly using an open protocol. Nearby devices can find all URLs in the room, rank them and let the user pick one from a list. Each device is, in effect, a gateway to a web page. This unlocks entirely new use cases so devices can offer tiny bits of information or simple i...
Things are being built upon cloud foundations to transform organizations. This CEO Power Panel at 15th Cloud Expo, moderated by Roger Strukhoff, Cloud Expo and @ThingsExpo conference chair, will address the big issues involving these technologies and, more important, the results they will achieve. How important are public, private, and hybrid cloud to the enterprise? How does one define Big Data? And how is the IoT tying all this together?
The Internet of Things (IoT) is going to require a new way of thinking and of developing software for speed, security and innovation. This requires IT leaders to balance business as usual while anticipating for the next market and technology trends. Cloud provides the right IT asset portfolio to help today’s IT leaders manage the old and prepare for the new. Today the cloud conversation is evolving from private and public to hybrid. This session will provide use cases and insights to reinforce the value of the network in helping organizations to maximize their company’s cloud experience.
TechCrunch reported that "Berlin-based relayr, maker of the WunderBar, an Internet of Things (IoT) hardware dev kit which resembles a chunky chocolate bar, has closed a $2.3 million seed round, from unnamed U.S. and Switzerland-based investors. The startup had previously raised a €250,000 friend and family round, and had been on track to close a €500,000 seed earlier this year — but received a higher funding offer from a different set of investors, which is the $2.3M round it’s reporting."
The Industrial Internet revolution is now underway, enabled by connected machines and billions of devices that communicate and collaborate. The massive amounts of Big Data requiring real-time analysis is flooding legacy IT systems and giving way to cloud environments that can handle the unpredictable workloads. Yet many barriers remain until we can fully realize the opportunities and benefits from the convergence of machines and devices with Big Data and the cloud, including interoperability, data security and privacy.
All major researchers estimate there will be tens of billions devices - computers, smartphones, tablets, and sensors - connected to the Internet by 2020. This number will continue to grow at a rapid pace for the next several decades. Over the summer Gartner released its much anticipated annual Hype Cycle report and the big news is that Internet of Things has now replaced Big Data as the most hyped technology. Indeed, we're hearing more and more about this fascinating new technological paradigm. Every other IT news item seems to be about IoT and its implications on the future of digital busines...
Cultural, regulatory, environmental, political and economic (CREPE) conditions over the past decade are creating cross-industry solution spaces that require processes and technologies from both the Internet of Things (IoT), and Data Management and Analytics (DMA). These solution spaces are evolving into Sensor Analytics Ecosystems (SAE) that represent significant new opportunities for organizations of all types. Public Utilities throughout the world, providing electricity, natural gas and water, are pursuing SmartGrid initiatives that represent one of the more mature examples of SAE. We have s...
The Internet of Things needs an entirely new security model, or does it? Can we save some old and tested controls for the latest emerging and different technology environments? In his session at Internet of @ThingsExpo, Davi Ottenheimer, EMC Senior Director of Trust, will review hands-on lessons with IoT devices and reveal privacy options and a new risk balance you might not expect.
IoT is still a vague buzzword for many people. In his session at Internet of @ThingsExpo, Mike Kavis, Vice President & Principal Cloud Architect at Cloud Technology Partners, will discuss the business value of IoT that goes far beyond the general public's perception that IoT is all about wearables and home consumer services. The presentation will also discuss how IoT is perceived by investors and how venture capitalist access this space. Other topics to discuss are barriers to success, what is new, what is old, and what the future may hold.
Swiss innovators dizmo Inc. launches its ground-breaking software, which turns any digital surface into an immersive platform. The dizmo platform seamlessly connects digital and physical objects in the home and at the workplace. Dizmo breaks down traditional boundaries between device, operating systems, apps and software, transforming the way users work, play and live. It supports orchestration and collaboration in an unparalleled way enabling any data to instantaneously be accessed on any surface, anywhere and made interactive. Dizmo brings fantasies as seen in Sci-fi movies such as Iro...