Spring Boot Properties

Introduction to Spring Boot

In Spring boot application, we have different ways to configure the properties for the project; we can use any of them. In comparison to the Spring framework, Spring Boot is very easy and makes a lot of configuring for us automatically. We have mainly 3 ways by which we can configure the spring application, but spring boot provided one easy way to do this by using a properties file, we can have all the application related configuration inside that file only, these properties can be very from the environment to environment. Here we will see its internal working and how we can configure all the things for our application in detail to better understand.

List of Spring Boot Properties

Here we will see different types of properties that we need to make in order to provide configuration for our application. This can be done via .properties file or .yml files in spring boot. In both the files, we have different type of syntax that need to follow; otherwise, the application will not run.

Let’s get started with the different type of properties we have in common:

Key for Property Start Your Free Software Development Course Web development, programming languages, Software testing & others	Description (what it does)
logging.file.path	This property will help us to mention the path for the log file.
debug	This property will enable the debug logs for us.
logging.config	This property will tell us the location which will contain the logging configuration, for example, any .xml file or etc.
info.*	This property will add the info endpoint.
logging.charset.file	This will tell the Charset used for the file output.
logging.charset.console	This will set the charset for the console output.
logging.file.name	This property is used to mention the logging file name.
logging.exception-conversion-word	This property is sued to tell the conversion words which are being used when logging exceptions.
logging.group.*	This property is sued to log groups.
logging.logback.rollingpolicy.clean-history-on-start	This property is used to clean up the archive log files but on startup.
logging.level.*	This property is used to set the log level. logging.level.org.springframework=INFO
logging.pattern.console	This property is used to set the appender pattern, which will show the logs on the console.
logging.logback.rollingpolicy.max-history	This property is used to set the number of days we can kept the archive logs.
logging.logback.rollingpolicy.file-name-pattern	This property is used to roll over the file name (log file name).
logging.logback.rollingpolicy.max-file-size	By the use of this, we can set the maximum size for the log file.
logging.logback.rollingpolicy.total-size-cap	This property will set the size for the backup file.
logging.pattern.file	This property will tell the Appender pattern for the file output.
logging.pattern.dateformat	This property will tell the Appender pattern for the date format.
spring.application.admin.jmx-name	Used for the JMX name for the spring application.
spring.aop.auto	This will enable the auto proxy AspectJ.
logging.pattern.level	This property will set the Appender pattern for log level.
spring.aop.proxy-target-class	Proxy is to be true.
spring.application.admin.enabled	This is used to enable the admin feature for the application or not.
spring.banner.image.invert	This property is used to check the weather the image for the dark terminal.
spring.application.name	This is used to give the application name.
spring.banner.charset	This property issued for banner file encoding.
spring.autoconfigure.exclude	To exclude the classes from the auto-configuration.
spring.banner.image.bitdepth	Used for bit path.
spring.banner.image.height	Used for the height for the banner images.
spring.banner.image.location	It will tell the file location.
spring.banner.image.width	Used to set the width of the banner image.
spring.banner.image.margin	Merging for the banner image.
spring.config.import	This property will help us to import the additional configuration data.
spring.config.name	This will tell the config name.
spring.config.location	This will tell the config file location.
spring.info.build.location	Will tell the location to the build file.
spring.info.build.encoding	Tell the build encoding.
spring.info.git.encoding	File encoding.
spring.jmx.default-domain	Will tell the JMX default domain.
spring.jmx.server	JMX server name.
spring.main.banner-mode	Tell the mode to display the banner.
spring.main.cloud-platform	Check whether the cloud platform is overridden or not.
spring.main.allow-bean-definition-overriding	Check whether the bean definition is over ridden or not.
spring.main.register-shutdown-hook	This will take true or false and check whether the application has shut up a hook or not.
spring.main.log-startup-info	This property is used for logging the information or logs when the application startups it also takes true or false as the value.
spring.messages.always-use-message-format	Takes true or false as the value and try to apply the message format rules and parse the messages.
spring.messages.fallback-to-system-locale	Fallback of the system also takes a value as true or false.
trace	This property helps to enable the trace logs; it also takes the Boolean value as true or false; by default, it is false.

All the properties that we have seen above come under the core properties of the spring boot; we also have cache, database and many more properties which are required in the application. We can also configure the security, Jackson, database, and other required property in the files when needed.

We have so many properties of the spring boot application out of which we have shown some of them above; now we can see one sample file which contains the properties of the application, we will see both the the files .properties and .yml.

• .properties file
• .yml file

Example:

Below find the sample file for the configuration which are required to run the application.

Code:

spring:
application:
name: ABC
profile: Development
banner:
location: banner.txt
datasource:
driverClassName: com.mysql.cj.jdbc.Driver
url: your url to the db
username: coc
liquibase:
enabled: true
change-log: classpath:db/your file
jpa:
hibernate:
naming:
physical-strategy: org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl
servlet:
multipart:
enabled: true
file-size-threshold: 2KB
max-file-size: 200MB
max-request-size: 215MB
security:
oauth2:
resourceserver:
jwt:
jwk-set-uri: your token configuration goes here
issuer-uri : if any
jackson:
mapper:
accept_case_insensitive_properties: true

Conclusion

By using properties, we can make so many configurations very easily in spring boot. Most of the configuration is automatically added in spring boot when we create the project from scratch; we just need to do the application-specific configuration under the requirement. All these are very easy to use and handle as well.

Recommended Articles

This is a guide to Spring Boot Properties. Here we discuss the introduction and list of spring boot properties for better understanding. You may also have a look at the following articles to learn more –

1. Maven Repository Spring
2. Spring Boot DevTools
3. Spring AOP
4. Spring Cloud Components