Learn about the top 10 Spring Boot properties that every developer should be familiar with. Configure your Spring Boot application for optimal performance and functionality with these essential properties.
Spring Boot, built on top of the Spring Framework, simplifies the process of developing robust and production-ready Java applications. One of its key features is the extensive use of properties for configuration.
In this blog post, we’ll explore the top 10 Spring Boot properties that every developer should be familiar with, showcasing their importance in configuring and optimizing Spring Boot applications.
Introduction
Spring Boot has revolutionized the way we develop Java applications by providing a streamlined and opinionated framework for building production-ready applications with minimal effort. One of the key features of Spring Boot is its extensive support for externalized configuration through properties files. In this blog post, we will explore the top 10 Spring Boot properties that every developer should be familiar with.
1. server.port
This property allows you to specify the port on which your Spring Boot application will listen for incoming requests. By default, Spring Boot uses port 8080, but you can change it to any available port, such as 9090.
server.port=90902. spring.datasource.url
If your application requires a database connection, this property allows you to specify the URL of the database. For example, if you are using MySQL, you can set it as follows:
spring.datasource.url=jdbc:mysql://localhost:3306/mydatabase3. spring.jpa.hibernate.ddl-auto
When using Spring Data JPA, this property controls the behavior of the database schema creation. By default, it is set to “none”, which means Spring Boot will not create or update the database schema. However, you can set it to “create” or “update” to automatically create or update the schema based on your entity classes.
spring.jpa.hibernate.ddl-auto=update4. spring.profiles.active
This property allows you to activate specific profiles in your application. Profiles provide a way to configure your application for different environments, such as development, testing, or production. By setting this property, you can activate the corresponding profile and load the appropriate configuration.
spring.profiles.active=dev5. spring.application.name
This property sets the name of your Spring Boot application. It is used in various places, such as logging and Actuator endpoints. It is a good practice to give your application a meaningful name to easily identify it in logs and monitoring tools.
spring.application.name=MyApp6. spring.mvc.view.prefix and spring.mvc.view.suffix
These properties allow you to configure the prefix and suffix for your view templates. By default, Spring Boot uses the “/templates” directory for view templates and “.html” as the suffix. However, you can customize these values according to your project structure and preferences.
spring.mvc.view.prefix=/WEB-INF/views/
spring.mvc.view.suffix=.jsp7. logging.level
This property controls the logging level for your application. By default, Spring Boot sets it to “info”, which logs important information about the application’s behavior. However, you can set it to “debug” or “trace” to enable more detailed logging for debugging purposes.
logging.level=debug8. spring.mail.host, spring.mail.port, spring.mail.username, spring.mail.password
If your application needs to send emails, these properties allow you to configure the mail server details. You can specify the host, port, username, and password to establish a connection with the mail server and send emails.
spring.mail.host=smtp.gmail.com
spring.mail.port=587
spring.mail.username=myemail@gmail.com
spring.mail.password=mypassword9. spring.cache.type
This property allows you to configure the type of caching used by your application. Spring Boot supports various caching providers, such as Ehcache, Redis, and Hazelcast. By default, it is set to “none”, which means caching is disabled. However, you can set it to the desired caching provider to enable caching in your application.
spring.cache.type=redis10. spring.security.user.name and spring.security.user.password
If your application requires basic authentication, these properties allow you to configure the username and password for the default user. By setting these properties, you can secure your application’s endpoints and restrict access to authorized users.
spring.security.user.name=admin
spring.security.user.password=secretConclusion
Spring Boot provides a wide range of properties to configure and customize your application. In this blog post, we have covered the top 10 Spring Boot properties that every developer should know. By understanding and utilizing these properties effectively, you can enhance the functionality, performance, and security of your Spring Boot applications.
Remember, properties are just one aspect of Spring Boot’s powerful configuration capabilities. Feel free to explore other features like profiles, environment variables, and command-line arguments to further fine-tune your application’s behavior.
