使用 ArrayList 在 YAML 文件中查找字符串

问：

我们有 YAML 文件，我们需要在其中找出特定的主机条目是否可用。

以下是代码

public class ListTest {

    public static void main(String[] args) throws FileNotFoundException {
        // TODO Auto-generated method stub

        InputStream inputStream = new FileInputStream(new File("C:\\Automation\\values.yaml"));

        Yaml yaml = new Yaml(new Constructor(Values1.class));

        Values1 data = yaml.load(inputStream);

        data.getRoute().getHosts().forEach(x -> System.out.println(x.getHost()));

        for (Host element : data.getRoute().getHosts()) {
            if (element.contains("goa.dev.abc.com")) {
                System.out.println(element);
                System.out.println("test");
            }
        }

    }

}

值1.java

public class Values1 {
    
    private Route route;
    private Ingress ingress;
    
    public Ingress getIngress() {
        return ingress;
    }
    public void setIngress(Ingress ingress) {
        this.ingress = ingress;
    }
    public Route getRoute() {
        return route;
    }
    public void setRoute(Route route) {
        this.route = route;
    }

}

主机.java

公共类 Host {

  private String host;
    public String getHost() {
        return host;
    }
    public void setHost(String host) {
        this.host = host;
    }
    public boolean contains(Object obj) {
        // TODO Auto-generated method stub
        
          if(!(obj instanceof Host)) {
                 return false;
              }
          
          Host host = (Host)obj;
          return this.host == host.getHost();
       }
    }

值.yaml

ingress: {backendServiceName: serv-deployment, cluster_issuer: lt-eks,
  ingressClassName: nginx-lr1, tls_acme: 'true'}
route:
  hosts:
  - {host: goa.dev.abc.com}

现在，我们只想检查列表中是否存在 ， 条目， “goa.dev.abc.com”

请建议缺少什么