java 调用接口获取服务器IP和端口号？

java 调用接口获取服务器IP和端口号？

package test5;
public interface A {
void setAll(int ID,String IP);
String getAll();
}
package test5;
public class B implements A{
String IP;
int ID;
public void setAll(int ID,String IP) {
this.ID=ID;
this.IP=IP;
}
public String getAll() {
return "ID为: "+ID+"\t\t"+"IP为: "+IP;
}
public static void main(String[] args) {
B b=new B();
b.setAll(1, "192.168.1.1");
System.out.println(b.getAll());
}
}2020-12-14

什么意思你是说这种localhost:8080/ index.html?2020-12-14