SpringBoot get the value in the configuration file

personal blog

Profile processor import

<!--导入配置文件处理器，配置文件进行绑定就会有提示-->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-configuration-processor</artifactId>
			<optional>true</optional>
		</dependency>

yml file writing

Note the indentation with spaces and the spaces between key-value pairs.

person:
    lastName: xiaoming
    age: 18
    boss: false
    birth: 2020/3/20
    maps: {k1: v1,k2: 12,}
    lists:
      - aaa
      - bbb
    dog:
      name: buck
      age: 2

JavaBean writing

Map the value of each attribute configured in the configuration file to this component

@ConfigurationProperties: Tell SpringBoot to bind all the properties in this class to the relevant configuration in the configuration file;

prefix = "person": map all attributes below in the configuration file one by one

Only this component is a component in the container, can the @ConfigurationProperties function provided by the container;

@Component
@ConfigurationProperties(prefix = "person")
public class Person {

    private String lastName;
    private Integer age;
    private Boolean boss;
    private Date birth;

    private Map<String,Object> maps;
    private List<Object> lists;
    private Dog dog;