PortResolver (spring-security-docs 5.6.5 API)

All Known Implementing Classes:

PortResolverImpl
```
public interface PortResolver
```
A PortResolver determines the port a web request was received on.
This interface is necessary because ServletRequest.getServerPort() may not return the correct port in certain circumstances. For example, if the browser does not construct the URL correctly after a redirect.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`int`	`getServerPort(javax.servlet.ServletRequest request)`	Indicates the port the `ServletRequest` was received on.

- Method Detail
  - getServerPort
```
int getServerPort(javax.servlet.ServletRequest request)
```
    Indicates the port the ServletRequest was received on.
    
    Parameters:
    
    request - that the method should lookup the port for
    
    Returns:
    
    the port the request was received on