Java中@ConfigurationProperties实现自定义配置绑定问题分析

@ConfigurationProperties(
        prefix = "hello.properties"
)
public class MyProperties {

    private String myKey;
    private List<String> stringList;
    private Duration duration;

    public String getMyKey() {
        return myKey;
    }

    public void setMyKey(String myKey) {
        this.myKey = myKey;
    }

    public List<String> getStringList() {
        return stringList;
    }

    public void setStringList(List<String> stringList) {
        this.stringList = stringList;
    }

    public Duration getDuration() {
        return duration;
    }

    public void setDuration(Duration duration) {
        this.duration = duration;
    }

    @Override
    public String toString() {
        return "MyProperties{" +
                "myKey='" + myKey + '\'' +
                ", stringList=" + stringList +
                ", duration=" + duration +
                '}';
    }
}

hello.properties.myKey=hello
hello.properties.duration=20s
hello.properties.string-list[0]=Acelin
hello.properties.string-list[1]=nice

hello.properties.myKey=hello
hello.properties.mykey=hello
hello.properties.my-key=hello
hello.properties.my_key=hello
hello.properties.MY_KEY=hello
hello.properties.MY-KEY=hello

hello.properties.duration=20s

hello.properties.string-list[0]=Acelin
hello.properties.string-list[1]=nice

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