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How to create project architecture to support multiple envionment. Each environment will have different datasource from different property file like(dev-propertfile,test-propertyFil,Production-propertyfile) with help of spring's
org.springframework.core.env.Environment;
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properties file in the src/main/resources directory, and then set a Spring profile with the same environment name. For example, if we define a “staging” environment, that means we'll have to define a staging profile and then application-staging. properties.
Another way to read application properties in Spring Boot app is to use the @ConfigurationProperties annotation. To do that we will need to create a Plain Old Java Object where each class field matches the name of the key in a property file.
Spring Boot supports different properties based on the Spring active profile. For example, we can keep two separate files for development and production to run the Spring Boot application.
To make profile based properties file, you need to add "-profilename" at the end of the file as application-error.properties. And also this file must be present in the classpath ("src/main/resources"). flag spring.profiles.active will take profiles names comma-separated if you have many.
Loading the properties file from an external location can be done in multiple ways but you should decide which one is suitable for your scenario. 2. Loading from application.properties By default, Spring boot will load all the properties from the application.properties file which is located at " src/main/resources ".
In Spring reading properties file and setting property values can be done using- Suppose you have your Database properties in a properties file called db.properties residing under config folder under resources folder.
Register a Properties File via Annotations Spring 3.1 also introduces the new @PropertySource annotation as a convenient mechanism for adding property sources to the environment. We can use this annotation in conjunction with the @Configuration annotation:
I'll give step by step procedure for Spring boot applications.
Run.
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