如何在spring boot中从YAML配置创建Map？

myMap:
  key1: value1
  key2: value2
  key3: value3

import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

import java.util.Map;

@Component
@ConfigurationProperties(prefix = "myMap")
public class MyMapConfig {
    private Map<String, String> map;

    public Map<String, String> getMap() {
        return map;
    }

    public void setMap(Map<String, String> map) {
        this.map = map;
    }
}

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

@Component
public class MyMapService {
    private final MyMapConfig myMapConfig;

    @Autowired
    public MyMapService(MyMapConfig myMapConfig) {
        this.myMapConfig = myMapConfig;
    }

    public void printMap() {
        Map<String, String> map = myMapConfig.getMap();
        System.out.println(map);
    }
}