How to Set Up a Multi-Module Maven Project with SpringBoot and React Sub-Modules

This guide explains how to effectively set up a multi-module Maven project that includes both Spring Boot and React applications, ensuring consistent versions across your project.
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Setting Up a Multi-Module Maven Project with Spring Boot and React

Creating a monorepo that contains both a Spring Boot backend and a React frontend can enhance the organization of your project and simplify dependency management. If you've set up a project structure and are experiencing issues with version mismatches, this guide will help you fix those problems efficiently.

Understanding the Problem

You've established a project structure like the following:

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Build Output Example

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As you can see, the frontend version is 1.0-SNAPSHOT while the backend is 3.0.2, leading to inconsistencies across your modules. Let's address this issue.

Solution: Modifying the Backend POM for Consistency

You should include the Spring Boot starter parent in the dependencyManagement section of your parent pom:

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2. Update the Backend POM

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3. Testing Your Setup

After making these changes, navigate to your root directory and build your project again using the command:

[[See Video to Reveal this Text or Code Snippet]]

This should ensure that both your frontend and backend modules are using the same versioning scheme based on your parent POM, leading to a consistent build output.

Conclusion

Setting up a multi-module Maven project can seem complex at first, especially when dealing with dependencies and version management. However, by organizing your project and configuring the parent pom correctly, you can achieve an efficient and consistent setup.

If you encounter any more issues or have specific questions, feel free to share your experience, and together we can troubleshoot further!