key: value;kv之间有空格
大小写敏感
使用缩进表示层级关系
缩进不允许使用tab,只允许空格
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
字符串无需加引号,如果要加,''与""表示字符串内容 会被 转义/不转义
- 字面量:单个的、不可再分的值。date、boolean、string、number、null
k: v
- 对象:键值对的集合。map、hash、set、object
行内写法: k: {k1:v1,k2:v2,k3:v3}
#或
k:
k1: v1
k2: v2
k3: v3
- 数组:一组按次序排列的值。array、list、queue
行内写法: k: [v1,v2,v3]
#或者
k:
- v1
- v2
- v3
@Data
public class Person {
private String userName;
private Boolean boss;
private Date birth;
private Integer age;
private Pet pet;
private String[] interests;
private List<String> animal;
private Map<String, Object> score;
private Set<Double> salarys;
private Map<String, List<Pet>> allPets;
}
@Data
public class Pet {
private String name;
private Double weight;
}
# yaml表示以上对象
person:
userName: zhangsan
boss: false
birth: 2019/12/12 20:12:33
age: 18
pet:
name: tomcat
weight: 23.4
interests: [篮球,游泳]
animal:
- jerry
- mario
score:
english:
first: 30
second: 40
third: 50
math: [131,140,148]
chinese: {first: 128,second: 136}
salarys: [3999,4999.98,5999.99]
allPets:
sick:
- {name: tom}
- {name: jerry,weight: 47}
health: [{name: mario,weight: 47}]
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
# 建议在打包时将该依赖排除
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</build>