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This article mainly introduces the relevant knowledge of how Docker dynamically transmits parameters to the Springboot project, the content is detailed and easy to understand, the operation is simple and fast, and it has a certain reference value. I believe everyone will gain something after reading this Docker article on how to dynamically transmit parameters to the Springboot project. Let's take a look.

Scene

Suppose there is a springboot project, which has a database configuration item, but there are different database test environments (dev\ sit\ uat), and there are multiple database ip. If you want to use the same springboot project image, you can switch the database configuration at any time. To put it simply, the database configuration of your springboot application should be imported externally, not hardcode.

A database in the springboot application is configured as follows:

Solution

Using spel expression to dynamically obtain database configuration from environment variables

Next, we replace the database configuration with spel expressions in the springboot configuration file

Configure our database parameters in docker-compose.yml

In this way, our springboot application can dynamically obtain the database configuration when starting the container service.

This is the end of the article on "how to dynamically transmit parameters to the Springboot project by Docker". Thank you for reading! I believe that everyone has a certain understanding of "how to dynamically transmit parameters to the Springboot project by Docker". If you want to learn more knowledge, you are welcome to follow the industry information channel.

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