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Java project docker container how to use, for this problem, this article describes in detail the corresponding analysis and solutions, hoping to help more partners who want to solve this problem to find a more simple and easy way.

According to W3Cschool's tutorial sharing, you can use docker to run Java applications in containers in a specific runtime environment. Here is how to create a Dockerfile to run a simple Java application in a container in OpenJDK 8.

The sample application consists of a Main.java file that prints Hello World! Go to the console and exit. The compiled output is located in the project directory under / out/production/DockerJavaApp.

Run the Java application in the container

1. In the project tool window, right-click the project name, point to New (New), and click File (File).

two。 In the New File (New File) dialog box, type Dockerfile and click OK.

3. Type the following in the new Dockerfile:

FROM openjdk:8COPY. / out/production/DockerJavaApp/ / tmpWORKDIR / tmpENTRYPOINT ["java", "Main"]

4. Click the run Docker (Run on Docker) shadow icon (the arrow to the right), and then click run on Docker' (Run on 'Docker').

IntelliJ IDEA creates a Docker running configuration that builds an image from Dockerfile and then runs a container against that image. The contents of the output directory (Main.class) are copied to the / tmp directory in the container. It then runs the java Main command from the / tmp directory. Therefore, you should see Hello World! Print to the container log.

Share Java applications as Docker images

1. In the Docker tool window, find the image you built from Dockerfile. By default, it is specified by a unique image ID because no image tag is provided. You can edit the corresponding running configuration and specify the selected image tag. To find the image ID, select the container to run from Dockerfile and open the Properties tab.

two。 Right-click the image with the desired ID, and then click push Image (Push Image) in the context menu.

3. In the push Image (Push Image) dialog box, select your registry, specify the repository name and tag for the image, and then click OK.

Once the image is pushed to the registry, anyone with access can pull it out and run a container from the image.

This is the answer to the question about how to use the docker container for the java project. I hope the above content can be of some help to you. If you still have a lot of doubts to be solved, you can follow the industry information channel for more related knowledge.

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