PortProvider (Spring Boot API)

所有已知实现类:
RemoteDebugPortProvider, StaticPortProvider
```
public interface PortProvider
```
Strategy interface to provide access to a port (which may change if an existing connection is closed).
从以下版本开始:
1.3.0

- 方法概要
  所有方法实例方法抽象方法
  修饰符和类型方法说明
  int getPort()
  Return the port number.

- 方法详细资料
  - getPort
```
int getPort()
```
    Return the port number.
    返回:
    the port number