Glassfish server open source edition 4.1 là gì năm 2024

is the world's first implementation of the Java Platform, Enterprise Edition (Java EE) 6 is the industry standard for enterprise Java computing. Utilize the new, lightweight Java EE 6 Web Profile to create next-generation web applications, and the full power of the Java EE 6 platform for enterprise applications. Developers will benefit from productivity improvements with more annotations, more POJOs, simplified packaging, and less XML configuration.

In conclusion, Glassfish Server offers a unique blend of robust Java EE support, modular architecture, and user-friendly management, making it an excellent choice for enterprise applications.

Whether you’re developing large-scale enterprise applications or smaller, more modular projects, Glassfish provides the tools and flexibility needed to succeed in today’s fast-paced application development landscape.

Key Features of Glassfish Server

Glassfish Server is not just another application server; it’s a powerhouse for enterprise applications.

Let’s dive into its key features and understand how they benefit enterprise environments.

1. Java EE Support:
   • What It Is: Full compatibility with Java EE, the standard in community-driven enterprise software.
   • Benefits: Allows for developing and deploying robust, scalable enterprise applications. Supports various Java EE components, including Servlets, JSPs, EJBs, JPA, and more.
2. Modular Architecture:
   • What It Is: Glassfish is built on the OSGi runtime, which has a modular architecture.
   • Benefits: This modularity allows for a lighter, more flexible server tailored to specific needs. It enables more accessible updates and better resource management, reducing overhead and improving performance.
3. Administration Console:
   • What It Is: A user-friendly web-based console for managing and configuring the Glassfish Server.
   • Benefits: Simplifies administration tasks, making it easier to deploy applications, manage resources, and monitor server performance. Ideal for both beginners and experienced users.

Each feature makes Glassfish Server a top choice for enterprise applications, offering power, flexibility, and user-friendliness.

Deploying Your First Application

Deploying an application on Glassfish Server can be a straightforward process.

Here’s a guide to help you get started:

1. Prepare Your Application:
   • Ensure your application is packaged correctly, typically as a WAR (Web Application Archive) or EAR (Enterprise Archive) file.
2. Access the Administration Console:
   • Open the Glassfish admin console, usually accessible via a web browser at http://localhost:4848.
3. Deploy the Application:
   • In the console, go to ‘Applications’ or ‘Deployments’.
   • Choose ‘Deploy’ and select your application file.
   • Follow the prompts to complete the deployment.
4. Understand Deployment Descriptors and Configurations:
   • Deployment descriptors (like web.xml for web applications) are XML files that describe how an application should be deployed.
   • These files define configurations such as servlet parameters, session settings, and security roles.
5. Tips for Successful Deployment:
   • Test Locally: Before deploying, ensure your application runs smoothly in a local environment.
   • Check Dependencies: Verify that all required libraries and modules are included in your deployment.
   • Monitor Logs: After deployment, monitor server logs for errors or warnings.
   • Security Considerations: Ensure security settings in your deployment descriptors are correctly configured.

Deploying your first application on Glassfish Server is an exciting step. With these guidelines, you’ll be well on your way to successfully launching your application in a robust and scalable enterprise environment.

Managing and Monitoring

Effective management and monitoring are crucial for maintaining the health and performance of any application server.

Glassfish Server offers a suite of tools designed for these purposes:

1. Overview of Management Tools in Glassfish Server:
   • Admin Console: A web-based interface for managing applications, resources, configurations, and server instances.
   • asadmin Utility: A command-line tool for scripting and automating server management tasks.
   • Monitoring Script: Tools for automating the monitoring of server resources and performance.
2. Monitoring Server Performance and Application Health:
   • Performance Tuning: Use the Admin Console to tune performance parameters like JVM settings, connection pools, and thread pools.
   • Health Checks: Regularly monitor application logs and server metrics for irregularities or errors.
   • Resource Utilization: Monitor CPU, memory, and network usage to ensure the server runs efficiently.
3. Best Practices for Maintaining a Glassfish Server Environment:
   • Regular Updates: Keep the server updated with the latest patches and versions.
   • Backup Configurations: Regularly backup server configurations and deployed applications.
   • Load Testing: Periodically perform load testing to ensure the server can handle expected traffic.

Security in Glassfish Server

Security is a paramount concern in application deployment and management.

Glassfish Server provides robust security features to protect your applications and data.

1. Introduction to Security Features in Glassfish Server:
   • Authentication and Authorization: Supports a range of authentication mechanisms like LDAP, JDBC realms, and custom realms.
   • SSL/TLS Integration: Facilitates encrypted communication to ensure data privacy and integrity.
   • Audit Modules: Tracks and logs user activities for security auditing.
2. Configuring Security Settings for Applications:
   • Securing Web Applications: Configure security constraints and roles in the web.xml deployment descriptor.
   • Securing EJBs: Use annotations or ejb-jar.xml to define security roles and permissions for enterprise beans.
   • Certificate Management: Manage server and client certificates for SSL/TLS through the Admin Console.
3. Best Practices for Ensuring a Secure Server Environment:
   • Regular Security Audits: Review security settings and audit logs to detect potential vulnerabilities.
   • Principle of Least Privilege: Grant minimum necessary permissions to applications and users.
   • Stay Informed: Keep abreast of the latest security advisories and patches for Glassfish Server.

Following these guidelines, you can effectively manage, monitor, and secure your Glassfish Server environment, ensuring robust performance and security for your enterprise applications.

Integrating with Databases and Other Systems

Integration capabilities are a significant aspect of any application server.

Glassfish Server excels in this area, offering seamless integration with various databases and enterprise systems.

1. Connecting Glassfish Server to Various Databases:
   • DataSource Configuration: Use the Admin Console or asadmin command-line tool to create and configure JDBC connection pools and data sources.
   • Database Drivers: Ensure the appropriate JDBC driver for your database (like MySQL, Oracle, PostgreSQL) is available in Glassfish’s classpath.
   • Testing Connections: Once configured, test the connection from the Admin Console to ensure proper setup.
2. Integration with Other Enterprise Systems and Tools:
   • JMS Integration: Configure JMS resources for messaging capabilities with systems like ActiveMQ or RabbitMQ.
   • External JNDI Resources: Set up external JNDI resources for integration with other enterprise services or EJBs.
   • Web Services: Utilize Glassfish’s support for SOAP and RESTful web services to interact with external systems.
3. Examples of Common Integrations and Configurations:
   • Cloud Integration: Configuring Glassfish to work in cloud environments like AWS or Azure.
   • Microservices Architecture: Setting up Glassfish in a microservices-oriented setup using its lightweight nature and modularity.

Why Choose Glassfish Server for Enterprise Applications?

Glassfish Server has several compelling advantages for enterprise applications, setting it apart.

1. Advantages in Enterprise Settings:
   • Comprehensive Java EE Support: Full support for Java EE makes it suitable for complex enterprise applications.
   • Scalability and Performance: Glassfish’s modularity and efficient resource management enable it to scale effectively for high-demand applications.
2. Comparison with Other Application Servers:
   • Apache Tomcat: While Tomcat is lighter and suitable for simpler applications, Glassfish excels in more complex, Java EE-based environments.
   • WildFly and WebLogic: Glassfish provides a balance between WildFly’s rapid development focus and WebLogic’s extensive enterprise features.
3. Real-World Use Cases and Success Stories:
   • Large Scale Enterprise Applications: Examples of large organizations using Glassfish for mission-critical applications.
   • Development and Test Environments: How startups and mid-size companies leverage Glassfish for its ease of use and flexibility.

FAQs

1. What is the GlassFish server used for?
   • GlassFish Server is used for building and deploying Java Platform, Enterprise Edition (Java EE) applications and web services.
2. Is GlassFish still used?
   • Yes, GlassFish is still used, particularly for enterprise-level Java EE applications.
3. What is the difference between Tomcat and GlassFish servers?
   • Tomcat is a servlet container mainly for web applications, whereas GlassFish is a full-fledged application server supporting the entire Java EE stack.
4. Is the GlassFish server free?
   • Yes, GlassFish Server is open source and free to use. However, support is not free.
5. Who uses GlassFish?
   • GlassFish is used by developers and organizations needing a robust, enterprise-level application server for Java EE applications.
6. What is the difference between JBoss and GlassFish?
   • Both are Java EE application servers, but JBoss (now WildFly) is often favored for its lightweight nature and rapid development capabilities. In contrast, GlassFish is known for its comprehensive Java EE support.
7. Does GlassFish use Tomcat?
   • No, GlassFish does not use Tomcat. It has its own web container for running web applications.
8. Is GlassFish a container?
   • GlassFish is not a container in the Docker sense; it’s an application server that can host containers like WARs (Web Application Archives).
9. What is the difference between Wildfly and GlassFish?
   • WildFly, formerly known as JBoss, is generally faster and lighter than GlassFish, but GlassFish offers more out-of-the-box enterprise features.
10. What type of file is deployed in the GlassFish server?
    • GlassFish server deploys WAR (Web Application Archive) and EAR (Enterprise Archive) files.
11. How do I run GlassFish as a service?
    • You can run GlassFish as a service by creating a service configuration file for your operating system and using commands to start GlassFish with system boot.
12. What is the meaning of GlassFish?
    • “GlassFish” is a name that originated from the “glassfish,” a species of fish known for its transparent appearance, symbolizing the project’s transparency and open-source nature.
13. Is GlassFish a web server or an application server?
    • GlassFish is primarily an application server that also functions as a web server.

Conclusion

• Recap of Key Points:
  • Glassfish Server stands out for its Java EE support, modularity, and comprehensive management features.
  • Its integration capabilities make it a versatile choice for various enterprise scenarios.
• Encouragement for Beginners:
  • We encourage beginners to dive into Glassfish Server, leveraging its user-friendly nature to build and

Fredrik Filipsson brings two decades of Oracle license management experience, including a nine-year tenure at Oracle and 11 years in Oracle license consulting. His expertise extends across leading IT corporations like IBM, enriching his profile with a broad spectrum of software and cloud projects. Filipsson's proficiency encompasses IBM, SAP, Microsoft, and Salesforce platforms, alongside significant involvement in Microsoft Copilot and AI initiatives, enhancing organizational efficiency.