Скачать или смотреть Resolving Spring Boot 2.2.2 DataSource URL Issues for SQL Server 2019

This guide provides a detailed guide on how to troubleshoot and resolve DataSource URL issues when developing with `Spring Boot` and `SQL Server 2019`.
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Troubleshooting Spring Boot DataSource URL Issues with SQL Server 2019

Developing applications with Spring Boot can be an exciting experience, but encountering technical issues can put a damper on progress. One common problem developers face is related to setting up the DataSource URL when working with SQL Server 2019. This post will explore the issue and provide a comprehensive solution for configuring Spring Boot correctly.

The Problem

When attempting to connect your Spring Boot application to SQL Server 2019, you may encounter the following error message:

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This error generally points to misconfiguration in your application properties or YAML file, particularly around the database connection settings.

Example Configuration

Consider the following YAML configuration which may lead to issues if not set up correctly:

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Dependency Example

Additionally, make sure you have included the appropriate JDBC driver dependency in your pom.xml:

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The Solution

If you're facing the aforementioned error, the root cause often lies in your application's configuration. Here’s how to diagnose and fix the problem:

Step 1: Review Your YAML Configuration

Double-check your YAML configuration for any typing errors or incorrect formatting that could cause the application to fail to read the url attribute. Ensure that:

The url is properly formatted.

There are no leading spaces or incorrect indentations.

Step 2: Verify Your Dependencies

Make sure that you have the correct and compatible version of the JDBC driver included in your project. Mismatched versions or missing dependencies can lead to connection failures.

Step 3: Check for Exclusions during Jar Repackage

One often-overlooked reason for the url attribute not being recognized is that certain files may be excluded from the package during the jar repackage process.

To fix this:

Ensure that your YAML configuration file is not excluded. This can typically be found in the build configuration of your project (e.g., Maven or Gradle settings), check for any exclusions that may inadvertently omit your application.yml.

Step 4: Run & Test Your Configuration

Once you've made the appropriate changes, run your application again. If everything is set up correctly, your Spring Boot application should now successfully connect to your SQL Server 2019 instance without encountering the DataSource URL error.

Conclusion

In summary, issues with the DataSource URL in Spring Boot when working with SQL Server 2019 can often be traced back to configuration errors or overwritten settings during build processes. By following the steps outlined above, you should be able to resolve these issues and continue developing your application with ease. Always remember to double-check configurations and dependencies, as they are keys to a smooth integration. Happy coding!