hhhhhhhhhhhh/ServiceInfo.java

package mxdx1;

import java.util.List;

//服务信息模型
public class ServiceInfo {
 private String serviceName; // 服务名称
 private String host;       // 主机地址
 private int port;          // 端口号

 // 构造方法、getter和setter
 public ServiceInfo(String serviceName, String host, int port) {
     this.serviceName = serviceName;
     this.host = host;
     this.port = port;
 }

 public String getHost() {
	return host;
 }

 public int getPort() {
	return port;
 }

 public String getServiceName() {
	return serviceName;
 }
 
 // getter和setter省略...
}

//服务观察者接口（观察者模式）
public interface ServiceObserver {
 void onServiceChanged(String serviceName, List<ServiceInfo> serviceInfos);
}