WebServerPortFileWriter (Spring Boot API)

java.lang.Object
- org.springframework.boot.web.context.WebServerPortFileWriter

所有已实现的接口:
EventListener, org.springframework.context.ApplicationListener<WebServerInitializedEvent>
```
public class WebServerPortFileWriter
extends Object
implements org.springframework.context.ApplicationListener<WebServerInitializedEvent>
```
An ApplicationListener that saves embedded server port and management port into file. This application listener will be triggered whenever the server starts, and the file name can be overridden at runtime with a System property or environment variable named "PORTFILE" or "portfile".
从以下版本开始:
2.0.0

构造器概要

构造器
构造器	说明
`WebServerPortFileWriter()`	Create a new `WebServerPortFileWriter` instance using the filename 'application.port'.
`WebServerPortFileWriter(File file)`	Create a new `WebServerPortFileWriter` instance with a specified file.
`WebServerPortFileWriter(String filename)`	Create a new `WebServerPortFileWriter` instance with a specified filename.

方法概要

所有方法实例方法具体方法
修饰符和类型	方法	说明
`protected File`	`getPortFile(org.springframework.context.ApplicationContext applicationContext)`	Return the actual port file that should be written for the given application context.
`void`	`onApplicationEvent(WebServerInitializedEvent event)`

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 构造器详细资料
  - WebServerPortFileWriter
```
public WebServerPortFileWriter()
```
    Create a new WebServerPortFileWriter instance using the filename 'application.port'.
  - WebServerPortFileWriter
```
public WebServerPortFileWriter(String filename)
```
    Create a new WebServerPortFileWriter instance with a specified filename.
    参数:
    filename - the name of file containing port
  - WebServerPortFileWriter
```
public WebServerPortFileWriter(File file)
```
    Create a new WebServerPortFileWriter instance with a specified file.
    参数:
    file - the file containing port
- 方法详细资料
  - onApplicationEvent
```
public void onApplicationEvent(WebServerInitializedEvent event)
```
    指定者:
    onApplicationEvent 在接口中 org.springframework.context.ApplicationListener<WebServerInitializedEvent>
  - getPortFile
```
protected File getPortFile(org.springframework.context.ApplicationContext applicationContext)
```
    Return the actual port file that should be written for the given application context. The default implementation builds a file from the source file and the application context namespace if available.
    参数:
    applicationContext - the source application context
    返回:
    the file that should be written