SpringBoot 如何从配置文件读取值到对象中

package com.wx.springboot20190911.demo.model;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;
import org.springframework.validation.annotation.Validated;
import javax.validation.constraints.Email;
import java.util.Date;
import java.util.List;
import java.util.Map;
/**
 * 1.ConfigurationProperties注解 从配置文件读取属性值，放到对象里面
 * 2.通过@value注解获取配置文件的值
 */
@Component//perosn 需要纳入spring ioc 容器里
@ConfigurationProperties(prefix = "person")//使用前缀标明具体的属性
@Validated
public class Person {
    @Email
    String email;
    String hello;
    String name;
    int age;
    boolean boss;
    Date birth;
    Map<String,String> maps;
    List<String> list;
    Dog dog;
    @Override
    public String toString() {
        return "Person{" +
                "email='" + email + '\'' +
                ", hello='" + hello + '\'' +
                ", name='" + name + '\'' +
                ", age=" + age +
                ", boss=" + boss +
                ", birth=" + birth +
                ", maps=" + maps +
                ", list=" + list +
                ", dog=" + dog +
                '}';
    }
    public String getEmail() {
        return email;
    }
    public void setEmail(String email) {
        this.email = email;
    }
    public String getHello() {
        return hello;
    }
    public void setHello(String hello) {
        this.hello = hello;
    }
    public Dog getDog() {
        return dog;
    }
    public void setDog(Dog dog) {
        this.dog = dog;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
    public boolean isBoss() {
        return boss;
    }
    public void setBoss(boolean boss) {
        this.boss = boss;
    }
    public Date getBirth() {
        return birth;
    }
    public void setBirth(Date birth) {
        this.birth = birth;
    }
    public Map<String, String> getMaps() {
        return maps;
    }
    public void setMaps(Map<String, String> maps) {
        this.maps = maps;
    }
    public List<String> getList() {
        return list;
    }
    public void setList(List<String> list) {
        this.list = list;
    }
}
package com.wx.springboot20190911.demo.model;
public class Dog {
    String name;
    String color;
    int age;
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getColor() {
        return color;
    }
    public void setColor(String color) {
        this.color = color;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
    @Override
    public String<em style="color:transparent">本文来源[email protected]搞@^&代*@码网(</em> toString() {
        return "Dog{" +
                "name='" + name + '\'' +
                ", color='" + color + '\'' +
                ", age=" + age +
                '}';
    }
}