General steps for deploying a spring boot project on a cloud server and running it continuously in the background. To select a server first, you need a cloud server that supports java, such as Jtti's Singapore cloud Server. The operating system can be Linux, Ubuntu or CentOS. The JavaScript environment needs to be installed on the cloud server. JDK 8 or later is recommended:

sudo apt update

sudo apt install openjdk-11-jdk

After installation, run the java version and javac version commands to check the JavaScript version.

Upload the required spring boot project to the jar package on the server. This can be done with the scp command:

scp your-app.jar username@your-server-ip:/path/to/destination

To run the spring boot project:

java -jar your-app.jar

To ensure the operation of the project, nohup is required:

nohup java -jar your-app.jar > app.log 2>&1 &

The output can be redirected to the app.log file and run continuously in the background without breaking the terminal link. You can choose the system management tool to manage the project, first create the systemdfw file:

[Unit]

Description=Your Spring Boot Application

After=network.target

[Service]

User=your-username

ExecStart=/usr/bin/java -jar /path/to/your-app.jar

SuccessExitStatus=143

Restart=on-failure

RestartSec=10

[Install]

WantedBy=multi-user.target Reload the systemd configuration startup service:

sudo systemctl daemon-reload

sudo systemctl start your-app

To set self-start:

sudo systemctl enable your-app

Query service status:

sudo systemctl status your-app

Install the supervisor

sudo apt install supervisor

Create supervisor

The configuration file of:

[program:your-app]

command=/usr/bin/java -jar /path/to/your-app.jar

directory=/path/to/your-app

autostart=true

autorestart=true

stderr_logfile=/var/log/your-app.err.log

stdout_logfile=/var/log/your-app.out.log

user=your-username

Update and configure self-start:

sudo supervisorctl reread

sudo supervisorctl update

sudo supervisorctl start your-app

Configure firewalls and ports, such as applications running on 8080:

sudo ufw allow 8080/tcp