Home Java javaTutorial Deploy JavaEE applications using Docker Containers

Deploy JavaEE applications using Docker Containers

Jun 05, 2024 pm 08:29 PM
docker javaee

Deploy JavaEE applications using Docker containers: Create a Dockerfile to define the image, build the image, run the container and map the port, and then access the application in the browser. Sample JavaEE application: REST API interacts with database, accessible on localhost after deployment via Docker.

使用Docker Container部署JavaEE应用程序

Deploying JavaEE applications using Docker Container

Introduction

Docker is a A containerization platform that allows you to encapsulate your application and all its dependencies and deploy them uniformly. This tutorial guides you through containerizing and deploying JavaEE applications using Docker.

Prerequisites

  • Install Docker Desktop
  • Install Java JDK 11+
  • Ready JavaEE Application

Steps

1. Create Dockerfile

Create a file named Dockerfile, Used to define Docker images.

FROM openjdk:11-jdk
COPY target/myapp.war /myapp.war
CMD ["java", "-jar", "/myapp.war"]
Copy after login
  • FROM indicates the base image.
  • COPY Copy the JavaEE WAR file to the container.
  • CMD Set the default command of the container.

2. Build the Docker image

In the directory where the Dockerfile is stored, run the following command:

docker image build -t myapp-image .
Copy after login

3. Run Docker container

After building the image, run the following command to start the container:

docker container run -p 8080:8080 myapp-image
Copy after login
  • -p 8080:8080 Map the 8080 port of the container to the host's Port 8080.

4. Test the application

Access in the browserhttp://localhost:8080/<app-context-path> .

Practical case

The following is a sample JavaEE application deployed using Docker:

A simple REST API that provides the function of interacting with the database .

Implementation:

@RestController
@RequestMapping("/api/data")
public class DataController {

    @Autowired
    private DataService dataService;

    @GetMapping
    public List<Data> getAllData() {
        return dataService.findAll();
    }

    @PostMapping
    public Data createData(@RequestBody Data data) {
        return dataService.save(data);
    }
}
Copy after login

Deployment:

Follow the steps above to build and deploy this application using Dockerfile and Docker compose.

The above is the detailed content of Deploy JavaEE applications using Docker Containers. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

How to update the image of docker How to update the image of docker Apr 15, 2025 pm 12:03 PM

The steps to update a Docker image are as follows: Pull the latest image tag New image Delete the old image for a specific tag (optional) Restart the container (if needed)

How to exit the container by docker How to exit the container by docker Apr 15, 2025 pm 12:15 PM

Four ways to exit Docker container: Use Ctrl D in the container terminal Enter exit command in the container terminal Use docker stop &lt;container_name&gt; Command Use docker kill &lt;container_name&gt; command in the host terminal (force exit)

How to restart docker How to restart docker Apr 15, 2025 pm 12:06 PM

How to restart the Docker container: get the container ID (docker ps); stop the container (docker stop &lt;container_id&gt;); start the container (docker start &lt;container_id&gt;); verify that the restart is successful (docker ps). Other methods: Docker Compose (docker-compose restart) or Docker API (see Docker documentation).

How to copy files in docker to outside How to copy files in docker to outside Apr 15, 2025 pm 12:12 PM

Methods for copying files to external hosts in Docker: Use the docker cp command: Execute docker cp [Options] &lt;Container Path&gt; &lt;Host Path&gt;. Using data volumes: Create a directory on the host, and use the -v parameter to mount the directory into the container when creating the container to achieve bidirectional file synchronization.

How to use docker desktop How to use docker desktop Apr 15, 2025 am 11:45 AM

How to use Docker Desktop? Docker Desktop is a tool for running Docker containers on local machines. The steps to use include: 1. Install Docker Desktop; 2. Start Docker Desktop; 3. Create Docker image (using Dockerfile); 4. Build Docker image (using docker build); 5. Run Docker container (using docker run).

How to view the docker process How to view the docker process Apr 15, 2025 am 11:48 AM

Docker process viewing method: 1. Docker CLI command: docker ps; 2. Systemd CLI command: systemctl status docker; 3. Docker Compose CLI command: docker-compose ps; 4. Process Explorer (Windows); 5. /proc directory (Linux).

How to check the name of the docker container How to check the name of the docker container Apr 15, 2025 pm 12:21 PM

You can query the Docker container name by following the steps: List all containers (docker ps). Filter the container list (using the grep command). Gets the container name (located in the "NAMES" column).

What to do if the docker image fails What to do if the docker image fails Apr 15, 2025 am 11:21 AM

Troubleshooting steps for failed Docker image build: Check Dockerfile syntax and dependency version. Check if the build context contains the required source code and dependencies. View the build log for error details. Use the --target option to build a hierarchical phase to identify failure points. Make sure to use the latest version of Docker engine. Build the image with --t [image-name]:debug mode to debug the problem. Check disk space and make sure it is sufficient. Disable SELinux to prevent interference with the build process. Ask community platforms for help, provide Dockerfiles and build log descriptions for more specific suggestions.

See all articles