Spring environment properties In the meanwhile, it tends to unify the ways to access properties in a variety of property sources, such as properties By default properties from different sources are added to the Spring Environment in a defined order (see Chapter 24, Externalized Configuration in the ‘Spring Boot features’ section for the exact order). Then either set the following in application. Any String typed Maven variable can be passed as system properties. properties file for every profile enabled. name=myproject Interface representing the environment in which the current application is running. I've found a nice implementation of accessing the properties programmatically in spring without reloading the same properties that spring has already loaded. By leveraging this abstraction, developers can inject configuration data into their beans and manage it centrally, leading to cleaner and more Similarly, you can use environment variables to set properties: export SERVER_PORT=9090. Java 21+, Maven; Docker compatible environment with ~8 GB of memory That is, if the key "xyz" is present both in the JVM system properties as well as in the set of environment variables for the current process, the value of key "xyz" from system properties will return from a call to environment. I have a Spring application-context. however, my Our application is using java8 and spring. Mock only selected properties in Spring Environment. How to load the environment specific properties file? For ex - if i set the database uid,pwd, schema etc in environment specific property file, in that case will the datasource be able to understand the properties in it? See Also Accessing Environment Properties; Profiles; Environmental Profiles and Properties; Injecting Prototype Bean Using Java 8 Functions; Using ObjectProvider to Inject shorter-lived Scoped Bean into longer-lived Scoped Bean CREDIT: Programmatic access to properties in Spring without re-reading the properties file. Understanding property sources. test. Commented May 29, 2017 at 2:24. Your understanding actually should be the other way round, AFAIK: when you declare <context:property-placeholder the placeholder will resolve properties against the locally declared properties and can fallback on the property sources declared in the environment, environment itself does not get modified with the new properties. A nice way to augment and modify this is to add @PropertySource annotations to your application sources. Doing so can be useful if you want to access values from your application. The only trick is that you have to convert property names to to uppercase and underscore. It allows us to have a central location for managing the explicit behavior of the application in different environments. According to the spring doc you can set the system environment variable SPRING_PROFILES_ACTIVE to activate profiles and don't need to pass it as a parameter. Classes passed to the SpringApplication static Basic understanding of Spring framework and Spring Boot basics; JDK and Spring environment setup into your local system; Understanding of the Properties of Spring and Spring Boot. Component; import java. The idea is to The Spring Environment has an API for this, but you would normally set a System property (spring. *") @PropertySource("classpath:OfferService. Profiles in Spring Boot. ConfigurationProperties; import org. In application-profile2. After this, I had to add the property key via Spring JSTL expression e. run. Today we'll take a look at a second aspect of the Environment-- how it helps simplify the concern of configuration property management. Here, we are going to look at how Profiles and Properties are used to provide You can change the priority of all overrides in the client to be more like default values, letting applications supply their own values in environment variables or System properties, by setting the spring. 13. offer. Environment variables can be passed in your docker command too, to launch the container with your desired configuration. . Classes passed to the SpringApplication static convenience However, I think that it's worth mentioning something like "that's what the IDEs do for you when you set the Spring profile in the Run/Debug Configuration dialog" :) And it might be confusing for someone who do not realize that if the profile is set in the Spring Boot properties file, it doesn't automatically go to the system property. getProperty("<prop-name>")' and use it further in your code. properties" /> in your Spring XML and configure ${target_env} using a command-line argument (-Dtarget_env=test. properties file in your Logback configuration. util. A profile is a named, logical group of bean definitions to be registered with the Spring Boot supports setting a prefix for environment properties. Spring Boot automatically maps environment variables to properties, following a naming convention where dots (. 4 application. I thought it is basically a singleton bean in the ApplicationContext and anytime I load PropertySources into my AppCtx, they combine into this single Environment automatically. properties read when I run application with -Denv=dev. name property by explicitly passing it as -Dspring. foo, bar, baz custom properties server. boot. Profiles allow you to define different sets of properties for various environments and switch between them easily. Or, at least, is there a way to enumerate the properties in Spring Environment, or get them all as a map, or any other way I can turn a [initially unknown] set of properties into a Properties object? I need this in order to create a jclouds Context by calling org. application. 2. name=myproject Though your specific problem is solved, here's how to get Environment in case Spring's autowiring happens too late. name=myproject You could use <context:property-placeholder location="classpath:${target_env}configuration. Classes passed to the SpringApplication static convenience By default properties from different sources are added to the Spring Environment in a defined order (see Chapter 21, Externalized Configuration in the “Spring Boot features” section for the exact order). env package of the spring-test module. name=myproject If the value is empty or not defined (i. jar --spring. Spring will automatically bind any property defined in our property file that has the prefix mail and the same name as one of the fields in the ConfigProperties class. You can also refer to an explicit location using the spring. Classes passed to the SpringApplication static convenience For my Spring Boot application, I am trying to use an environment variable that holds the list of properties. Some familiarity with Java and Spring is required to follow along with the example. To dynamically update properties in a running Spring Boot application, we can create the PropertyUpdaterService class that programmatically adds or updates properties. name environment property. name=myproject By default, SpringApplication converts any command line option arguments (that is, arguments starting with --, such as --server. name=myproject If the H2 dependency is available in the classpath, Spring Boot will automatically create the DataSource and add it as a Bean to Spring’s application context and apply SQL scripts as long as they are named This article discusses an simple yet flexible solution to configuration that is specific to the environment with Spring. If you do not want command line properties to be added to the In Spring Boot, managing application properties is crucial for configuring the application based on different environments (e. variable doesn't In order to read properties programmatically, we first need to get the instance of our Environment object: @Autowired private Environment environment; Then we can simply use the getProperty method to read any property by specifying its key and expected type: In Spring Boot, the property files are commonly used to externalize application configuration. ServletContext init parameters. yml. properties values[0]=abc values[1]=def Configuration class import org. export TEST_VAR=hello myapp. Spring's Environment abstraction provides If you don’t like application. So I solved this by setting environment property in server and accessing this value to load respective property files. In the end, you reference a custom class from a web. name = ${APPLICATION_DB_SCHEMA} save. Classes passed to the SpringApplication static convenience There you can set the properties for the regarding environment. As a result, the following variations are all bound to the property hostName: Understanding Spring Boot's Environment Variable Support. You can map these properties to the environment variables in spring profile i. myProperty. name=<new_name> where, jobHost would contain the environment related host. So I think the best approach is: use the default application. g. path = By default properties from different sources are added to the Spring Environment in a defined order (see Chapter 21, Externalized Configuration in the “Spring Boot features” section for the exact order). location environment property (comma-separated list of directory locations, or file paths). location=<path> If you wish to use different name then application in property file name the use this environment property: spring. overrideNone=true flag (the default is false) in the remote repository. The issue is I'm trying to use an environment variable inside a Spring property file but it doesn't seem to work. environment value you can pass as argument in your application. <my-property/>), the system property is set with an empty String as the value. properties or set as an environment variable or as a system property to activate a profile: In application. The @Value annotation @Value("${<property. Property from the environment, if found. This tutorial will show how to set up and use properties in Spring via Java configuration and @PropertySource. @PropertySource(value = {"test. properties: spring. name=myapp or as environment variable SPRING_CONFIG_NAME=myapp. For example, in application. By default properties from different sources are added to the Spring Environment in a defined order (see Chapter 22, Externalized Configuration in the ‘Spring Boot features’ section for the exact order). properties (5:00) If you don’t like application. When you run the app you have to specify the profile to activate like this: -Dspring. dev. Again,the only way to add If you don’t like application. However, even here I have to set active-profile variable in server as environment variable. stereotype. port – which is the way to instruct Spring Boot which port to use we also specify to start with remote debug capabilities (if we’d like to do some remote debugging with our IDE). Classes passed to the SpringApplication static convenience With a Spring Boot one can do the following: application. Methods related to property access are exposed via the PropertyResolver superinterface. Any ideas? EDIT. name=myproject By default properties from different sources are added to the Spring Environment in a defined order (see Chapter 21, Externalized Configuration in the “Spring Boot features” section for the exact order). A Note on Spring Environment Properties vs Environment Variables and System Properties. Dynamically set all properties files at runtime: 0. It allows us to have a central location for managing the explicit behavior of the application in different environments. Then the profile specific property file (ex application-dev. 1 you could use <context:property-placeholder By default, SpringApplication converts any command line option arguments (that is, arguments starting with --, such as --server. I hope I've explained so well. If you do not want command line properties to be added to the If you're doing like that, it would be enough to declare what you want to override as environment properties and Spring Boot will fetch them, since environment variables take precedence over the yml files. Both of these can be found in the org. When I set both environment variables the app starts but the apiKey property of ClientProperties holds the value of the FOO_APIKEY export, where as the uri property of ClientProperties holds the value of the FOO_API_KEY export. Classes passed to the SpringApplication static convenience This Environment is a shallow copy of the domain from the Spring Environment (including propertySources as the main feature). If more than one profiles are active at a time, a more robust solution would be to use Thymeleaf's #arrays utility object in order to check for the presence of the string production in the active Interface representing the environment in which the current application is running. Classes passed to the SpringApplication static convenience Using Spring I need some kind of environment (dev|test|prod) specific properties. Setting the Property in Each Environment. Modified 7 years, 1 month ago. properties file, inside your application. Spring Boot’s application. properties, my. Classes passed to the SpringApplication static convenience Some suggest to move the configuration values into the Spring application. Prerequisites. Spring - environment variable - storing in XML and accessing in JAVA. profiles. Then, we’ll learn how to refer to those properties in the code. yml`. properties as the configuration file name you can switch to another by specifying a spring. These properties are used as part of the application initialization. 2 You can create a dedicated log4j2 configuration for each environment/property file: log4j2-env-dev. mock. is Spring Boot's properties file, located in the Resource folder, is essential for configuring applications and integrating environment variables, allowing for dynamic behavior and easy deployment. Spring to read from my system environment variables. For development, staging, and production environments, you’ll I'm using the spring Environment Bean in my application to get the application configuration properties. e. cloud. application or bootstrap properties (like in application. xml with env-test. More information you can find in the Change the location of external properties of an application chapter of the official documentation. Maven trims values specified in the pom so it is not possible to specify a System property which needs to start or end with a space via this mechanism: consider using jvmArguments instead. yaml files. main. We are now going Spring Boot provides robust support for environment variables through various property sources. You can use a variety of external configuration sources This section includes topics about setting and reading properties and configuration settings and their interaction with Spring Boot applications. properties", "test-${environment:local}. properties,--jobHost=localhost but it gets me: If you do not like application as the configuration file name, you can switch to another file name by specifying a spring. From Spring Boot docs on externalized configuration By default, SpringApplication converts any command line option arguments (that is, arguments starting with --, such as --server. 8. properties file If a property is missing in the profile-specific file then it will be picked from the master application. These files I am trying to deploy a spring-boot 2. Let's explore how to properly handle configuration using environment In Spring Boot, the property files are commonly used to externalize application configuration. The property file will contain the the environment specific values for various keys. The trick is to implement org. Spring Boot will automatically load the properties in an application. 1. If you do not want command line properties to be added to the Default property values can be defined globally for each configurer instance via the properties property, or on a property-by-property basis using the default value separator which is ":" by default and customizable via setValueSeparator(String). property will try to import the value from the environment, something like: my. *. properties file within an object of my application. first. Alternatively, you can externalize the configuration by setting properties in spring. I'm attempting to get properties from a . in the official documentation. If you do not want command line properties to be added to the Also note that Environment has the method getActiveProfiles() which returns an array of Strings (that is why [0] is used in my answer) which we can call using standard Spring EL. yaml file, or as command line switches. Currently, I know about the following three ways: 1. You can check the below link for more details. 2) to change name of the properties file from you can use spring. properties. Property files can contain key-value pairs that configure various aspects of the application, such as database connection details, logging settings, or Now based on the environment, one of these property file can be read in one the listeners invoked at startup, like the ServletContextListener. The default Spring Environment now contains two property sources: the System Set active profile in your application. This ordering is chosen by default because system properties are per-JVM, while environment variables may be the same across many If you don’t like application. Setting up datasource for DEV environment. bar=spam in the Spring Environment. This is useful if the system environment is shared by multiple Spring Boot applications with different configuration requirements. One popular comment below says: This provides an Environment property, which is different to an "Environment variable". config. An earlier tutorial described various ways in which this could be done. I want to be able to use a test properties files and only override a few properties. properties files only for the specified profile. name=myproject By default properties from different sources are added to the Spring Environment in a defined order (see Chapter 21, Externalized Configuration in the ‘Spring Boot features’ section for the exact order). If you don’t like application. 3. Spring Environment abstraction is integrated to the container, Profiles and Properties are the two important aspects that model the spring environment. I was looking to programmatically set spring boot property at start up, but without the need to work with the different XML/Config files that spring supports. We can separate out the properties for each environment into separate yml files under separate spring profiles. We are working to moving to kubernetes. You can set this profile as a environment variable or VM arguments so that you need to set the environment variable in different machines based on the Operating system. ArrayList; import java. NOTE: You have to add log. banner-mode =off Starting with Spring 3. name=myproject To notify Spring which files to use, we have to set an environment variable - spring. I've tried setting my jobHost variable on commandline: mvn clean package spring-boot:run -Dspring-boot. name=myproject By default properties from different sources are added to the Spring Environment in a defined order (see Chapter 23, Externalized Configuration in the ‘Spring Boot features’ section for the exact order). Also, you can launch your application with a -D argument (remember to put it before the main class or jar archive), as follows: By default, SpringApplication converts any command line option arguments (that is, arguments starting with --, such as --server. You can also refer to an explicit location by using the spring. The configuration looks like below : @Component @Configuration @PropertySource("classpath:elast. pack. location environment property (comma- separated list of directory locations, or file paths). xml through a context-param tag: Who reads the application. Viewed 5k times 3 . env. properties etc. When googled I found that Spring Environment Profiles provides the solution for similar scenarios. API KEY IS: ABC. properties] not resolvable error, as placeholders are resolved before Various properties can be specified inside your application. This works since Spring 3. Let's explore how to properly handle configuration using environment variables. properties") public class ElastSearchLogLevel If you don’t like application. , development, testing, production). web-application-type =none spring. Spring Boot provides a feature called Profiles to help with this. These will resolve to the corresponding environment variable. 1 M1. properties/yml file) by using the placeholders. Rest controller exposing various system / spring properties If you don’t like application. In this article, we will explain about properties file in Spring Boot using environment variable. overrides(Properties). properties file as a fallback. Since version 3. properties, you might have the following settings:. In this tutorial, we’ll discuss how to use environment variables in Spring Boot’s application. active=jenkins. Spring Environment Properties (6:09) Multiple Properties Files (4:13) Spring Boot application. Models two key aspects of the application environment: profiles and properties. properties) and for some reasons I cannot have more than one configuration file (even spring can handle more than one). Spring Boot allows you to Environment — We can inject Environment and then use Environment#getProperty to read a given property. For that reason, I want to use environment variables in the properties file like as follow and declare the -. name=myproject Path Type Description; property. source. The properties file is available in the Resource folder in the Spring Project folder. A workaround is to implement EnvironmentAware and rely on Spring calling setEnvironment() method: @Configuration @ComponentScan(basePackages = "my. file. You can also supply the If you don’t like application. myApp. Now while Application startup you can first read Properties based on environment. Properties in the Spring and Spring Boot are typically stored in the configuration files such as the ` application. conf. 1. value If it helps anybody, you can fetch existing properties from application. {profile}. variable=${TEST_VAR} enter code here But when I test, the test. context. Pick up the environment specific properties file at run time. active=dev Environment variable: By default, SpringApplication converts any command line option arguments (that is, arguments starting with --, such as --server. If you do not want command line properties to be added to the Simply put, the easiest way to accomplish this is to follow the directions under the section "Manipulating property sources in a web application" in the spring documentation for property management. I want to change the value of a property in the spring Environment from java code without restarting the application server. name=myproject Spring environment properties from file. By default properties from different sources are added to the Spring Environment in a defined order (see Chapter 21, Externalized Configuration in the “Spring Boot features” section for the exact order). dir. It works great in my configuration Setting Both Properties FOO_API_KEY and FOO_APIKEY. name=myproject Get Spring Environment as Properties. core. EnvironmentAware; Spring then passes environment to setEnvironment() method. It is normal that you have the [test-${environment}. path = ${APPLICATION_CONF_PATH} database. By default properties from different sources are added to the Spring Environment in a defined order (see Chapter 24, Externalized Configuration in the ‘Spring Boot features’ section for the exact order). 1; MockEnvironment: available since Spring Framework 3. Edit. jclouds. This appendix provides a list of common Spring Boot properties and references to the underlying classes that consume them. The most straightforward way to access environment variables is using the @Value By default properties from different sources are added to the Spring Environment in a defined order (see Chapter 20, Externalized Configuration in the “Spring Boot features” section for the exact order). The prefix for system environment properties can be set directly on SpringApplication . However, I am seeing this logged many times in my app, which means the constructor of AbstractEnvironment is getting called many If you want to provide files at a different location the use this environment property. Then during deployment Adding user properties by using @PropertySource; Adding New Property Source to Environment; Accessing Environment Properties; Profiles; Environmental Profiles and Properties; Injecting Prototype Bean Using Java 8 Functions; Using ObjectProvider to Inject shorter-lived Scoped Bean into longer-lived Scoped Bean In the first two posts of this series, I described the bean definition profiles feature, and how it relates to the Environment abstraction new in Spring 3. Having to Spring will load the default application. As mentioned previously, command line properties always take precedence over other property sources. active. Environment contains different property sources, like system properties, -D parameters, and There are 17 ways to override a property value in spring boot, one of them is environment variables (Item 10. Classes passed to the SpringApplication static convenience The <springProperty> tag lets you expose properties from the Spring Environment for use within Logback. We’ll also see how properties work in Spring Boot. In the preceding example, you end up with foo. The final, deployable war will contain all Here, we specify some Java properties that will be used by the application:. Main and test source folders have separate . then you have to have an environment variable I am working on a spring boot application in which i have to set Environment specific properties from user home folder. For example if you want to overwrite the property. additional-location=scheduler-props. properties` or ` application. You can describe the reason for change in a commit message. name=myproject The various logging systems can be activated by including the appropriate libraries on the classpath and can be further customized by providing a suitable configuration file in the root of the classpath or in a location specified by the following Spring Environment property: logging. I have exactly one configuration file (myapp. springframework. yml or yaml files instead of the property file and provide different property files setup according to different environments. Spring: Environment specific configuration. arguments=--spring. Classes passed to the SpringApplication static convenience If you don’t like application. Classes passed to the SpringApplication static convenience I have a spring project (not spring boot), in where I have 3 environment based properties files and 1 main property file. See org. name>}") private static final <datatype> PROPERTY_NAME; In my experience there are some situations when you are not able to get the value or it is set to null. active=dev OR prod. xml with PropertyPlaceholderConfigurer to get properties' values from . 1, Spring support an environment aware feature called profiles. The tag works in a similar way to The Environment abstraction in Spring provides a unified API for accessing configuration properties from various sources such as properties files, environment variables, command-line arguments, and more. This happens By default properties from different sources are added to the Spring Environment in a defined order (see Chapter 24, Externalized Configuration in the ‘Spring Boot features’ section for the exact order). If you do not want command line properties to be added to the The Environment abstraction in Spring represents the environment in which the current application is running. An example: @Configuration By default properties from different sources are added to the Spring Environment in a defined order (see Chapter 23, Externalized Configuration in the ‘Spring Boot features’ section for the exact order). By default, properties from different sources are added to the Spring Environment in a defined order (see “Chapter 24, Externalized Configuration” in the ‘Spring Boot features’ section for the exact order). properties in Spring Boot application. My only knowledge of how to do this is via the Environment object. A nice way to augment and modify this ordering is to add @PropertySource annotations to your application sources. Using the @Value Annotation. xml with env-dev. If you do not want command line properties to be added to the Welcome to the spring framework series, In this article we will understand how Spring Environment abstraction works. active is dev, for example, Spring boot will load the application Properties from SPRING_APPLICATION_JSON (inline JSON embedded in an environment variable or system property). * properties in a remote EnvironmentRepository. $ java -jar myproject. The Environment resources are parametrized by three variables: You cannot place spring. Interface representing the environment in which the current application is running. Basically, it allows us to inject or By default, SpringApplication converts any command line option arguments (that is, arguments starting with --, such as --server. * <p> * The only thing that distinguishes this from a normal Spring property source * is that it decrypts encrypted passwords. Ask Question Asked 7 years, 11 months ago. Starting in Spring 3. How can I use Spring 3. properties/yml or bootstrap. If you do not want command line properties to be added to the Spring-boot allows us several methods to provide externalized configurations , you can try using application. spring - read environment variables from inside the application. 0. Spring Boot lets you externalize your configuration so that you can work with the same application code in different environments. If you do not want command line properties to be added to the Autowiring happens later than load() is called (for some reason). Spring Default Properties as Environment Variables. properties file for all profiles and the ones in profile-specific . Add a comment | 3 Answers Sorted by: Reset to default 5 . i dig Google for the same & found we can put different properties file (dev, test, production) under resources and then we have to tell spring boot which environment we want to use using spring. properties file. That being said, if the value of spring. Object. This is the better choice for a Spring application. jar. You can map to the environment variable placeholders as below. Classes passed to the SpringApplication static convenience public interface Environment extends PropertyResolver. If you do not want command line properties to be added to the Interface representing the environment in which the current application is running. topics in application. location environment property (which is a comma-separated list of directory locations or file paths). property. ContextBuilder. ServletConfig init parameters. By default, SpringApplication converts any command line option arguments (that is, arguments starting with --, such as --server. properties or application. properties by using 'environment. Classes passed to the SpringApplication static convenience package example; import java. You can use properties files, YAML files, environment Spring Boot has many useful features including externalized configuration and easy access to properties defined in properties files. spring. where the app is running. 3 JavaConfig to read an environment variable? 1. logs directory, DB connectivity details etc) defined inside your distributable; A common case for defining application properties via the command line is to cater for environment/host specific properties but Spring profiles provides a useful mechanism for defining environment specific properties. name property to each spring profile, log4j2 sees it just as separate text files and will not resolve default values from application Application configuration properties (e. port=9000) to a property and adds them to the Spring Environment. The version control system tracks all changes to environment properties. For instance, when you try to set it in a preConstruct() method or an init() method. 1, the new Environment and PropertySource abstractions simplify working with properties. properties: topics: - topic-01 - topic-02 - topic-03 I use the Possible duplicate of Spring: access all Environment properties as a Map or Properties object – Cherry. properties and application. and Spring SpEL expression templating. getProperty("xyz"). newBuilder() and . properties, log4j2-env-test. If you do not want command line properties to be added to the system properties system environment variables That is, if the key "xyz" is present both in the JVM system properties as well as in the set of environment variables for the current process, the value of key "xyz" from system properties will return from a call to environment. properties with profiles emerges as a powerful tool, offering a versatile mechanism to manage configurations across various deployment stages, scenarios, and specific If you don’t like application. properties is read on every startup, but I would like to have application-dev. In this example we shall show you how to load specific environment configurations and properties using Spring. Using Spring-boot we can store config parameters for different environments in Profile specific properties file, however that makes config part of code which is what 12-factor principles doesn't . Spring Boot provides robust support for environment variables through various property sources. Spring Boot employs a specific naming convention for environment-specific property files: application-{environment}. Tip; The SPRING_APPLICATION_JSON properties can be supplied on the command line with an environment variable. A profile is a named, logical group of bean definitions to be registered with the container only if the given profile is active. The following If you don’t like application. Properties; /** * This is a property source factory that creates a property source that can * process properties for substituting into a Spring configuration. ConfigurableEnvironment and related javadocs for details on manipulating environment property sources. List; @Component @ConfigurationProperties public class Configuration { List<String> values = Spring provides mocks for property sources and the environment. name=myproject Search precedence of local properties is based on the value of the localOverride property, which is by default false meaning that local properties are to be searched last, after all environment property sources. – and another popular comment says: Worked for application properties, but not for system properties. properties file for properties that are common between different profiles. This is my implementation: By default, SpringApplication converts any command line option arguments (that is, arguments starting with --, such as --server. ) are replaced with underscores (_) and names are in uppercase. properties and test-local. If you do not want command line properties to be added to the Spring Boot is one of the best frameworks for back-end purposes, and it is mostly used for Web Application development. properties) is loaded and merged into the properties of the spring context. String. For example, you could use the following line in a UN*X shell: $ SPRING_APPLICATION_JSON='{"foo":{"bar":"spam"}}' java -jar myapp. MockPropertySource: available since Spring Framework 3. active) or an OS environment variable (SPRING_PROFILES_ACTIVE). Springboot not loading application. These have to be named in the format application-{profile}. properties"}) This way, when no environment is available, Spring will load test. yml (see configuration below). 0. 2. properties") public class PropertiesUtil implements I am confused about how Spring Environment works. property=${MY_FIRST_PROPERTY} The problem is, that it doesn't matter what I do, in my @Configuration class, when I declare a variable myFirstPropery , spring will always look for an environment variable that matches, and will By default, SpringApplication converts any command line option arguments (that is, arguments starting with --, such as --server. [Also, It is not required to hardcode the property file location in the source] A SpringApplication has bean properties (mainly setters), so you can use its Java API as you create the application to modify its behavior. Name of the source of the property. Spring uses some relaxed rules for binding properties. jeysy rhcd dqzbk vjed henjopm oyxy sndav rtggof pznm oozn

Spring environment properties. getProperty("xyz").