如何在dropwizard中将yml文件读取到java hashmap中

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.12.5</version>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.dataformat</groupId>
    <artifactId>jackson-dataformat-yaml</artifactId>
    <version>2.12.5</version>
</dependency>

database:
  driverClass: com.mysql.jdbc.Driver
  url: jdbc:mysql://localhost/mydatabase
  username: myuser
  password: mypassword

public class DatabaseConfig {
    private String driverClass;
    private String url;
    private String username;
    private String password;

    // 省略构造函数、getter和setter方法
}

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.dataformat.yaml.YAMLFactory;

public class MyAppConfiguration extends Configuration {
    private Map<String, Object> yamlConfig;

    public Map<String, Object> getYamlConfig() {
        return yamlConfig;
    }

    @JsonProperty("yamlConfig")
    public void setYamlConfig(Map<String, Object> yamlConfig) {
        this.yamlConfig = yamlConfig;
    }

    // 读取YAML文件并将其转换为Java HashMap
    public void loadYamlConfig(String yamlFilePath) throws IOException {
        ObjectMapper mapper = new ObjectMapper(new YAMLFactory());
        yamlConfig = mapper.readValue(new File(yamlFilePath), new TypeReference<Map<String, Object>>() {});
    }
}

public class MyApp extends Application<MyAppConfiguration> {
    public static void main(String[] args) throws Exception {
        new MyApp().run(args);
    }

    @Override
    public void run(MyAppConfiguration configuration, Environment environment) throws Exception {
        // 加载YAML配置文件
        configuration.loadYamlConfig("path/to/your/config.yml");

        // 获取读取到的配置数据
        Map<String, Object> yamlConfig = configuration.getYamlConfig();

        // 在这里可以使用读取到的配置数据进行相应的操作
        // ...

        // 注册资源、服务等
        // ...
    }
}