server.ip=000.000.000.000
server.port=0000

@Component
@ConfigurationProperties(prefix = "server")
public class AppProperties {

    private String url;
    private Integer port;

... getters ans setters

@Component
public class Teste {

    @Autowired
    private AppProperties properties;

...

    socket = new Socket(properties.getIp(), properties.getPort());