Spring Boot Learning--spring boot configuration file application

The Spring boot configuration file is available in two formats: Application.properties and APPLICATION.YML. Only one of the two profiles needs to be used.

There are some differences in the syntax of the two configuration files, as follows

1. Application.properties

Server.port = 8080--Tomcat port

Server.context-path =/webname--URL path

2. Application.yml

Server

port:8080--Tomcat port, note that there are spaces after the colon

Context-path:/webname--URL path, note that there are spaces after the colon

One, the Java class uses the configuration

1. Method One

@value ("${server.port}")private String port;

2. Method Two

@Compoent @configurationproperties (prefix= "server")  Public class serverproperties{      private  String port;       Private String context-path;             // Set/get method       }

Note: Using annotations @Compoent is to facilitate the use of @autowired in other classes to reference the class

Second, sub-environment use configuration file

Create two more Profiles application-dev.yml (test environment Profile) and APPLICATION-PROD.YML (formal environment profile)

The configuration in Application.yml is as follows:

Spring:    Profiles:        Active:dev

Note: The above configuration is to use the configuration file application-dev.yml, change to Active:prod can use the configuration file application-prod.yml

Third, Java command start using configuration

Java-jar ****.jar--spring.profiles.active=dev

Note: The above configuration is to use the configuration file application-dev.yml, change to--spring.profiles.active=prod can use the configuration file application-prod.yml

Spring Boot Learning--spring boot configuration file application