Tag Archives: spring-boot

Introducing thymeleaf-i18n-helper: A New i18n Messages Helper for Spring Boot Thymeleaf

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If you’re working with Spring Boot Thymeleaf message, you know that managing i18n messages can be a challenge. That’s why we’re excited to introduce our new thymeleaf-i18n-helper extension for Visual Studio Code.

i18n-helper-demo

Our extension makes it easy to convert text on selection to #{message} and adds it to your message properties file. It will even prompt you for variable name with default value and file. Additionally, you can switch between available languages based on properties file with selection in the status bar.

The thymeleaf-i18n-helper extension is currently in pre-release, so we encourage you to try it out and report any bugs you encounter. We’re confident that with your feedback, we can make this extension even better and more useful for developers working with Spring Boot Thymeleaf.

Features

  • Convert text on selection to #{message} and adds it to message properties file
  • Prompts user for variable name with default value and file
  • Switch between available languages based on properties file with selection in status bar
  • Detect if text already exists or if variable already exists
  • Create th:text if it detects it’s only text within the tag
  • Creates a span with remove tag otherwise

Check out our GitHub repository for more information and to download the extension.

Marketplace: Vscode marketplace

Requirements

  • Spring Boot with Thymeleaf and properties files
  • Tested on Boot 3

Extension Settings

  • thymeleaf-i18n-helper.exclude: (Optional) Exclude files
  • thymeleaf-i18n-helper.folder: (Optional) Specify i18n path to restrict search in those files

Thank you for trying out thymeleaf-i18n-helper! We look forward to hearing your feedback and making this extension even better.

404 Error when deploying Spring Boot WAR file on Tomcat 9

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We recently encountered a problem when deploying a Spring Boot application as a WAR file on Tomcat 9. After deploying the WAR file to Tomcat, we received a 404 error when trying to access the application in a web browser. The Tomcat logs showed no errors or exceptions related to the deployment, and we were unsure of the root cause of the issue.

Solution Attempt 1: Check the WAR File and Dependencies

Our first step in troubleshooting the issue was to verify that the WAR file and its dependencies were correct and complete. We double-checked the contents of the WAR file and reviewed the application’s dependencies, but we found no issues that could explain the 404 error.

Solution Attempt 2: Check the Tomcat Configuration

Our next step was to review the Tomcat configuration and make sure that it was set up correctly for the application. We checked the server.xml file and made sure that the correct port and context path were specified, but we still encountered the 404 error.

Solution Attempt 3: Check the Spring Boot Configuration

We then turned our attention to the Spring Boot configuration and reviewed the application’s application.properties and application.yml files. We checked the server port and context path settings, but we found no issues that could explain the 404 error.

Tomcat server

Solution Attempt 4: Review the Spring Boot Code

Finally, we reviewed the Spring Boot code to make sure that the application was correctly configured for deployment as a WAR file on Tomcat. We checked the Spring MVC configuration, the Thymeleaf templates, and the view controllers, but we found no issues that could explain the 404 error.

Solution: Compatibility Issue with Spring Boot 3.0 and Tomcat 9

After exhausting all other possible solutions, we discovered that the root cause of the 404 error was a compatibility issue between Spring Boot 3.0 and Tomcat 9. It turns out that Spring Boot 3.0 requires Tomcat 10 or later, and Tomcat 9 is not compatible with this version of Spring Boot.

Once we upgraded to Tomcat 10, the application deployed and ran without any issues. We were able to access the application in a web browser and verify that all functionality was working correctly.

Conclusion

In summary, we encountered a 404 error when deploying a Spring Boot application as a WAR file on Tomcat 9. After trying various solutions and troubleshooting steps, we discovered that the root cause of the issue was a compatibility problem between Spring Boot 3.0 and Tomcat 9. Once we upgraded to Tomcat 10, the issue was resolved, and the application ran without any issues.

This experience highlights the importance of keeping up to date with software compatibility requirements and being aware of the potential issues that can arise when using different versions of software together. By staying informed and up-to-date, we can avoid similar issues in the future and ensure that our applications run smoothly and reliably.