Скачать или смотреть Resolving the org.hibernate.tool.schema.spi.CommandAcceptanceException in Spring with Hibernate

Discover how to fix the `org.hibernate.tool.schema.spi.CommandAcceptanceException` error in your Spring application including effective code adjustments and explanations for better database management.
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This video is based on the question https://stackoverflow.com/q/71802504/ asked by the user 'germes mercury' ( https://stackoverflow.com/u/18750001/ ) and on the answer https://stackoverflow.com/a/71923013/ provided by the user 'karim farhouti' ( https://stackoverflow.com/u/12666301/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Fixing the org.hibernate.tool.schema.spi.CommandAcceptanceException in Your Spring Application

When working with Spring and Hibernate, developers often encounter various exceptions that can be a bit tricky to resolve. One such error is the org.hibernate.tool.schema.spi.CommandAcceptanceException, which typically arises when there's an issue with executing DDL statements—most commonly while managing relationships between entities. In this guide, we’ll delve into the root cause of this error and provide you with a straightforward solution to fix it.

Understanding the Problem

The specific exceptions you'll encounter may look something like this:

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

These errors indicate a problem with the creation of your database schema—primarily concerning the sector table and its relationship with the person table. More specifically, Hibernate is failing to manage the foreign key constraints you've defined in your entity classes.

Solution Breakdown

The solution involves making a small yet impactful adjustment in your entity classes. Here's how to implement it step by step.

1. Review Your Entity Classes

Let's take a closer look at your Person and Sector classes. You defined the relationship between these two classes using @ ManyToMany, which is typically correct. However, there's a mistake in your use of @ JoinColumn in the Sector class.

Here's what your Person class looks like:

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

And your Sector class:

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

2. Adjust the Sector Class

To resolve the issue, you need to remove the @ JoinColumn annotation from the Sector class. Since you've already defined the join table and columns in the Person class, it is unnecessary to redefine them in Sector, which can lead to conflicts.

Here’s the modified Sector class:

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

3. Verify Your Database Properties

Ensure your properties configuration in application.properties is correct and is pointing to the right database. For example:

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

Make sure to match the URL, username, and password with those of your database.

4. Run Your Application

Once these changes are made, try running your Spring application again. Hibernate should now successfully create the tables and relationships without raising a CommandAcceptanceException error.

Conclusion

By adjusting the Sector class and removing the unnecessary @ JoinColumn, you're able to resolve the org.hibernate.tool.schema.spi.CommandAcceptanceException effectively. Managing the relationships between entities in Spring and Hibernate can be challenging, but with careful attention to the annotations and database properties, you can successfully avoid such issues.

If you face any further questions related to this topic, feel free to leave a comment below! Happy coding!