SpingBoot之配置文件的值注入问题

Person:
    lastName: 张三
    age: 23
    boss: false
    birth: 2018-10-11
    maps: {k1: v1,k2: v2}
    lists:
      - pig
      - dog
    dog:
      name: 半半
      age: 1

package com.example.demo.entity;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;
import java.util.Date;
import java.util.List;
import java.util.Map;
/**
 * 将配置文件中配置的属性值映射到组件中
 * @ConfigurationProperties：告诉SpringBoot将本类中的所有属性和配置文件中相关的配置进行绑定
 * prefix = "person" 配置文件中哪些下面的所有属性进行一一映射
 * 只有这个组件是容器中的组件才能使用容器提供的@ConfigurationProperties的功能
 */
@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;
    @Override
    public String toString() {
        return "Person{" +
                "lastName=‘" + lastName + ‘\‘‘ +
                ", age=" + age +
                ", boss=" + boss +
                ", birth=" + birth +
                ", maps=" + maps +
                ", lists=" + lists +
                ", dog=" + dog +
                ‘}‘;
    }

package com.example.demo.entity;
public class Dog {
    private String name;
    private Integer age;

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

set/get方法......

package com.example.demo;
import com.example.demo.entity.Person;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
/**
 * springBoot测试
 * 可以在测试期间可以很方便的类似编码一样进行自动注入等容器的功能
 */
@RunWith(SpringRunner.class)
@SpringBootTest
public class DemoApplicationTests {
    @Autowired
    Person person;
    @Test
    public void contextLoads() {
        System.out.println(person);
    }
}

@Componentpublic class Person {
   //lastName必须是邮箱格式@Value("${person.last-name}")
    private String lastName;
    @Value("#{11*2}")
    private Integer age;
   @Value("true")
    private Boolean boss;
    private Date birth;
    private Map<String,Object> maps;
    private List<Object> lists;
    private Dog dog;

@Component
@ConfigurationProperties(prefix = "person")
@Validated
public class Person {
   //lastName必须是邮箱格式
    @Email
    private String lastName;
    private Integer age；private Date birth;
    private Map<String,Object> maps;
    private List<Object> lists;
    private Dog dog;
    private Boolean boss;

@PropertySource(value = {"classpath:person.properties"})
@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;
}
set/get方法.....

@ImportResource(locations = {"classpath:beans.xml"})
导入Spring的配置文件让其生效

@Configuration
public class MyAppConfig {
    //将方法的返回值添加到容器中；容器中这个组件默认的id就是方法名
    @Bean
    public HelloService helloServicfun(){
        System.out.println("配置类@Bean给容器中添加组件了...");
        return new HelloService();
    }
}