@[TOC]

1 yml示例

name: 胡思源

# 对象
person:
  name: ${
   name}
  age: 1

# 数组
aoteman: [迪迦,赛罗]

guaishou:
  - 亚波人
  - 贝利亚

# 纯量
msg1: 'hello \n world' # 不会识别转义符，会原样输出
msg2: "hello \n world" # 会识别转义字符

2 @Value

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

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

    @Value("${aoteman[0]}")
    private String atm;

3 Environment

    @Autowired
    private Environment env;

    public void test(){
   
        System.out.println(env.getProperty("person.name"));
        System.out.println(env.getProperty("aoteman[0]"));
    }

4 @ConfigurationProperties

• 写配置文件对应的实体类
  ```java
  import org.springframework.boot.context.properties.ConfigurationProperties;
  import org.springframework.stereotype.Component;

@Component
@ConfigurationProperties(prefix = "person")
public class Person {

private String name;

private int age;

private String[] address;

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 String[] getAddress() {
    return address;
}

public void setAddress(String[] address) {
    this.address = address;
}

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

}

* 读取配置文件并使用
```java
    @Autowired
    private Person person;

    public void test(){
        System.out.println(person);
        System.out.println(person.getAddress()[0]);
        System.out.println(person.getAddress()[1]);
    }