yaml基本语法

1.建立两个类

Dog

package com.shao.pojo;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

@Component
public class Dog {
    @Value("niao")
    private String name;
    @Value("3")
    private Integer age;

    public Dog() {
    }

    public Dog(String name, Integer age) {
        this.name = name;
        this.age = age;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

    @Override
    public String toString() {
        return "Dog{" +
                "name='" + name + '\'' +
                ", age=" + age +
                '}';
    }
}

Person

package com.shao.pojo;

import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

import java.util.Date;
import java.util.List;
import java.util.Map;

@Component //这个注解让他们成为了spring的实体类
@ConfigurationProperties(prefix = "person") //听过这个识别yaml自动赋值
public class Person {
    private String name;
    private Integer age;
    private Boolean isHappy;
    private Date bitrh;
    private Map<String, Object> maps;
    private List<Object> lists;
    private Dog dog;

    public Person() {
    }

    public Person(String name, Integer age, Boolean isHappy, Date bitrh, Map<String, Object> maps, List<Object> lists, Dog dog) {
        this.name = name;
        this.age = age;
        this.isHappy = isHappy;
        this.bitrh = bitrh;
        this.maps = maps;
        this.lists = lists;
        this.dog = dog;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

    public Boolean getHappy() {
        return isHappy;
    }

    public void setHappy(Boolean happy) {
        isHappy = happy;
    }

    public Date getBitrh() {
        return bitrh;
    }

    public void setBitrh(Date bitrh) {
        this.bitrh = bitrh;
    }

    public Map<String, Object> getMaps() {
        return maps;
    }

    public void setMaps(Map<String, Object> maps) {
        this.maps = maps;
    }

    public List<Object> getLists() {
        return lists;
    }

    public void setLists(List<Object> lists) {
        this.lists = lists;
    }

    public Dog getDog() {
        return dog;
    }

    public void setDog(Dog dog) {
        this.dog = dog;
    }

    @Override
    public String toString() {
        return "Person{" +
                "name='" + name + '\'' +
                ", age=" + age +
                ", isHappy=" + isHappy +
                ", bitrh=" + bitrh +
                ", maps=" + maps +
                ", lists=" + lists +
                ", dog=" + dog +
                '}';
    }
}

2.yaml测试

#server:
##  必须有空格,:+空格
#  port: 8081
## 也可以存对象
##student:
##  name: niao
##  age: 3
#
##行内写法
#student: {name: niao, age: 3}
#
##数组
##pets:
##  - cat
##  - dog
##  - pig
#pets: [cat, dog, pig]

person:
  name: niao
  age: 3
  isHappy: true
  birth: 1996/4/4
  maps: {k1: v1, k2: bv2}
  lists: [code, music, niao]
  dog: {name: niao, age: 3}

3.测试

package com.shao;

import com.shao.pojo.Dog;
import com.shao.pojo.Person;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;

@SpringBootTest
class Springboot02ApplicationTests {

    @Autowired//必须用这个自动装配
    private Person person;

    @Test
    void contextLoads() {
        System.out.println(person);
    }
}