Springboot @PropertySource

@ConfigurationProperties (prefix= "person") load global profile application.properties or APPLICATION.YML by default

There are fields in the Application.properties file Persion.first-name

@PropertySource load profile information for the specified path

Application.properties Sibling directory has person.properties first-name such as read person.properties need to add @propertysource Note and specify the path @propertysource (value = {"Classpath:person.properties"})

Import org.springframework.boot.context.properties.ConfigurationProperties; Import Org.springframework.context.annotation.PropertySource; Import  = {"Classpath:person.properties" }) @ConfigurationProperties (prefix= "person")  publicclass person {    private  String firstName;             }

@ImportResource: Import the Spring configuration file and let the contents of the configuration file take effect (@importResource label on a configuration Class)

@ImportResource (location={"Classpath:xxx.xml"}) Import the spring configuration file for it to   take effect

@Configuration: Indicates that the current class is a configuration class, that is, to replace the previous spring configuration file, and to add components with <bean><bean/> tags in the configuration file

Springboot recommended ways to add components to a container: full annotation recommended

1. Configuration class equivalent to spring configuration file

2. Adding components to a container using @bean

Import Org.springframework.context.annotation.Bean; Import org.springframework.context.annotation.Configuration; @Configuration  Public class myappconfig {    // adds the return value of the method to the container; The default ID of this component in the container is the method name     @Bean       public HelloService HelloService () {        returnnew  HelloService ();}    } 

Springboot @PropertySource