3springboot：springboot配置文件（配置文件yaml属性文件值注入<@value@configurationproperties@propertysource，@imp(代码片

server:
  port: 8088

Person:
 name:xxxx
 age:12

  Person:  {name:xxx,age=12}

gender: [gril,boy]

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-configuration-processor</artifactId>
    <optional>true</optional>
</dependency>

//将配置文件中的每一个属性的值映射到这个组件中
//告诉springboot将本类中的所有属性和配置文件中的相关配置进行绑定
//(prefix = "person")将配置文件中以person下的所有属性进行绑定
@Component
@ConfigurationProperties(prefix = "person")
public class Person {
    private  String name;
    private  Integer age;
    private boolean boss;//布尔值
    private Date bir;//时间

    private Map<String,Object> map;//Map
    private List<String> lists;//List

    private Dog dog;//对象
}

public class Dog {
    private String name;
    private  Integer age;
}

person:
  name: Mr
  age: 14
  boss: true
  bir: 2018/12/21
  map: {m1: v1,m2: v2}
  lists:
     - mc
     - mt
  dog:
     name: dogdog
     age: 10

@RunWith(SpringRunner.class)
@SpringBootTest
public class Springboot01ApplicationTests {
    @Autowired
    Person person;
    @Test
    public void contextLoads() {
        System.out.println(person);
    }

}

Person{name='Mr', age=14, boss=true, bir=Fri Dec 21 00:00:00 CST 2018, map={m1=v1, m2=v2}, 
lists=[mc, mt], dog=Dog{name='dogdog', age=10}}

person.name=mr
person.age=22
person.bir=2018/12/11
person.boss=true
person.map.q1=1
person.map.q2=2
person.lists=a,b,c
person.dog.name=cat
person.dog.age=22

@Component
@ConfigurationProperties(prefix = "person")
@Validated
public class Person {
    @Email
    private  String name;
...
}

@ResponseBody
@Controller
public class Helloword {

    @Value("${person.name}")
    private String name;

    @RequestMapping("/hello")
    public  String hello(){
        return "Hello tow!" + name;
    }
}

@PropertySource(value = {"classpath:/person.properties"})
@Component
@ConfigurationProperties(prefix = "person")
public class Person {
    private  String name;
    private  Integer age;
    private boolean boss;
    private Date bir;
...
}

@ImportResource(locations = {"classpath:spring.xml"})
@SpringBootApplication
public class Springboot01Application {
    public static void main(String[] args) {
        SpringApplication.run(Springboot01Application.class, args);
    }
}

public class helloword {
    public void hello(){
        System.out.println("hello");
    }
}

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans.xsd">
    <bean id="hello" class="com.cr.springboot01.ImportSoource.helloword"></bean>
</beans>

@Autowired
ApplicationContext app;
@Test
public void testImportSourcr(){
    boolean h = app.containsBean("hello");
    System.out.println(h);
}

//配置类，指明当前类使配置类，代替xml配置文件
@Configuration
public class MyConfig {
    //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 Helloword hello(){
        System.out.println("注解的方式");
        return new Helloword();
    }
}

@Autowired
ApplicationContext app;
@Test
public void testImportSourcr(){
    boolean h = app.containsBean("hello");
    System.out.println(h);
}