Spring boot将属性读取到Map中

@Configuration
@ConfigurationProperties(prefix = "myapp")
public class MyAppConfig {
    private Map<String, String> properties = new HashMap<>();

    public Map<String, String> getProperties() {
        return properties;
    }

    public void setProperties(Map<String, String> properties) {
        this.properties = properties;
    }
}

myapp.property1=value1
myapp.property2=value2

myapp:
  property1: value1
  property2: value2

@Service
public class MyService {
    private final Map<String, String> properties;

    public MyService(MyAppConfig appConfig) {
        this.properties = appConfig.getProperties();
    }

    public String getProperty(String key) {
        return properties.get(key);
    }
}