三、SpringBoot配置文件

• key: value : key-value 之间有空格
• 大小写敏感
• 使用缩进表示层级关系
• 缩进的空格数不重要，只要相同层级的元素左对齐即可
• # 表示注释
• 字符串无需添加引号，如果要添加，"" 双引号不会转义，’'单引号会转义

Person.java

@Component//加入到容器中去
@ConfigurationProperties(prefix = "person")
@Data
@ToString
public class Person {
    private String userName;
    private Boolean boss;
    private Date birth;
    private Integer age;
    private Pet pet;
    private String[] interests;
    private List animal;
    private Map score;
    private Set salarys;
    private Map> allPets;
}

Pet.java

@Data
@ToString
public class Pet {
    private String name;
    private Double weight;
}

application.yaml示例

person:
  userName: 张三
  boss: true
  birth: 2020/10/31
  age: 1
  pet:
    name: 花花
    weight: 37
  interests:
    - 篮球
    - 游泳
  animal: [jerry,tom]
  score:
    english: 78
    math: 79
  salarys:
    - 9999
    - 8888
  allPets:
    sick:
      - {name: tom,weight: 34}
      - {name: lisi,weight: 56}
#      - pet:
#          name: 阿猫
#          weight: 23 错误的
    health: [{name: jerry,weight: 55}]

只需要在pom.xml文件中配置以下内容即可

        
            org.springframework.boot
            spring-boot-configuration-processor
            true
        
    
    
    
        

            
                org.apache.maven.plugins
                maven-compiler-plugin
                
                    none