Payara Server and Java EE

To serve Java EE applications with war format nothing better than Payara Server. Payara Server is an open-source Java EE application server built in Java. Its main advantage over its competitors is that it is strongly supported by the community. In addition, it allows running in almost any environment either in the cloud or hybrid. This gives us an idea of the potential of the application.

Its main features are:

• Fully Supported Server derived from GlassFish 5.x Open Source Edition.
• Drop-in Replacement for GlassFish Open Source Edition.
• Microprofile 1.3 API support.
• Supports deployment of JavaEE 8 applications.
• Production Enhancements including JCache, JBatch, and Hazelcast session clustering.
• Payara Micro for cloud and microservice deployments.

So, let us start.

1.- Install Java 11 on Debian 10

Payara Server is built with Java which in theory makes it work with any version of it. However, the development branch 5 of the Payara Server works better if we install Java 11. So this is the first step:

Open a terminal session of your server or computer and run the following:

:~$ sudo apt install openjdk-11-jre openjdk-11-jdk

Then, check the installed version:

:~$ java -version
openjdk version "11.0.3" 2019-04-16
OpenJDK Runtime Environment (build 11.0.3+7-post-Debian-5)
OpenJDK 64-Bit Server VM (build 11.0.3+7-post-Debian-5, mixed mode, sharing)

So, we can continue.

2.- Download and install Payara Server on Debian 10

Now it is necessary to download Payara Server from the project website.

Then, it is necessary that you place it on your computer through an FTP server.

Read, How to set up an FTP server on Debian 10?

And move it to /opt/

:~$ sudo mv payara-5.192.zip /opt/

Then unzip it.

:~$ sudo unzip payara-5.192.zip

Next, navigate into the folder and go to bin.

:~$ cd payara5/bin/

Now, we can start the server using the following command:

:~$ sudo ./asadmin start-domain

Now, you can open your web browser and go to http://your-server:4848 and you will see the following:

After a few seconds, you will see this screen.

Using this administration panel, you will be able to access all the server configurations. Also keep in mind, if you use a Firewall you need to open port 4848.

3.- Change the default port of Payara Server

To increase server security or for configuration reasons, it is possible to change the default port of Payara Server.

First, stop running the server:

:~$ sudo ./asadmin stop-domain

Now you have to edit a configuration file to change the port. To do this, open the domain.xml file located in payara5/glassfish/domains/domain1/config/ directory.

:~$ cd ../glassfish/domains/domain1/config/
:~$ sudo nano domain.xml

In the file, in the network-listener section, you will see the port field and you will be able to change it to your liking.

Now, start the server again.

:~$ cd /opt/payara5/bin/
:~$ ./asadmin start-domain

And that is it.

2.- Deploy an application with Payara Server on Debian 10

Deploying an application on Payara server is quite simple. To do this, just type the following command:

:~$ ./asadmin deploy [WAR_file_path]

And if you want to stop the deployment, this other command is enough:

:~$ ./asadmin undeploy [WAR_file_path]

And that’s enough. Now you can continue using Payara Server.

Conclusion

Java EE is one of the preferred options for more experienced developers to create professional applications. In this way, the Payara Server becomes a robust option to serve these applications. In addition, it is multiplatform and gutter with the backing of being created in Java. Well, in this post you have learned how to install it in Debian 10.

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Payara Server is the open source platform of choice for the development of Java EE production applications. In addition, it contains many improvements and better community support. Many companies worldwide use it for the deployment of their Java applications.

Installing the Payara Server will bring many advantages to our projects. For this reason, here are some of what it provides.

• Fully Supported Server derived from GlassFish 5.x Open Source Edition.
• Drop in Replacement for GlassFish Open Source Edition.
• Microprofile 1.3 API support.
• Supports deployment of JavaEE 8 applications.
• Production Enhancements including JCache, JBatch, and Hazelcast session clustering.
• Payara Micro for cloud and microservice deployments.

It is possible to install Payara Server in different operating systems such as Windows Server, Ubuntu, Debian, CentOS, RHEL, OpenSUSE, SUSE 11.4 and others.

In this tutorial, I will show you how to install it on Ubuntu 18.04 and Linux Mint 19.

1. Installing JDK for Payara Server

Payara Server requires JDK for its operation. In the case of version 5, the recommended is the JDK 8, so the first step is to check if it is installed. Type on the terminal:

:~$ java --version

In this case, note that I have JDK10 installed. In this case, I must install the 8.

:~$ sudo apt install openjdk-8-jdk

Now you must tell the system which version of Java it will use by default.

:~$ sudo update-alternatives --config java

After executing the command, enter the number corresponding to the installed Java version. And finally, run:

:~$ java -version

For now, we’re done with the JDK.

2. Install Payara Server

In a first place, you must download Payara Server from its website.

Then unzip it to the folder of your choice.

:~$ unzip payara-5.183.zip

Next, enter the folder. And in the path payara5/bin, run:

:~$ cd payara5/bin/
:~$ ./asadmin start-domain

This command will start the server running domain1, which is the default domain included in Payara Server. In case you want to start another domain, this must be explicitly specified as an argument of the command.

Now, go to localhost:4848 on your web browser.

3. Changing the default port

It is always a good idea to change the default port to avoid conflicts with others.

In a first place, stop the domain:

:~$ ./asadmin stop-domain

Note: remember to execute the command being located in the payara/bin folder.

Then, edit the domain.xml file. Located in the payara5/glassfish/domains/domain1/config/ directory.

:~$ cd payara5/glassfish/domains/domain1/config/
:~$ nano domain.xml

Next, locate the network-listener section, specifically in admin-listener and modify the port you want.

Now place yourself in the bin folder and run again:

:~$ ./asadmin start-domain

4. Deploy an application on Payara Server

There are two ways to deploy an application with Payara Server. Using the terminal the command is:

:~$ ./asadmin deploy /home/angelo/example.war

In case you want undeploy the application, run:

:~$ ./asadmin undeploy /home/angelo/example.war

And that’s all there is to it. Remember that Payara Server is very flexible so there are many options and its management although simple is very powerful.

Tell us about your experience with Payara Server. Have you used it?

Please spread this article to your social networks.

The post How to install Payara Server on Ubuntu 18.04? appeared first on Linux Windows and android Tutorials.