PortResolverImpl (spring-security-docs 5.8.0 API)

java.lang.Object
- org.springframework.security.web.PortResolverImpl

All Implemented Interfaces:

PortResolver
```
public class PortResolverImpl
extends java.lang.Object
implements PortResolver
```
Concrete implementation of PortResolver that obtains the port from ServletRequest.getServerPort().
This class is capable of handling the IE bug which results in an incorrect URL being presented in the header subsequent to a redirect to a different scheme and port where the port is not a well-known number (ie 80 or 443). Handling involves detecting an incorrect response from ServletRequest.getServerPort() for the scheme (eg a HTTP request on 8443) and then determining the real server port (eg HTTP request is really on 8080). The map of valid ports is obtained from the configured PortMapper.

Constructor Summary

Constructors
Constructor Description

PortResolverImpl()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`PortMapper`	`getPortMapper()`
`int`	`getServerPort(javax.servlet.ServletRequest request)`	Indicates the port the `ServletRequest` was received on.
`void`	`setPortMapper(PortMapper portMapper)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - PortResolverImpl
```
public PortResolverImpl()
```
- Method Detail
  - getPortMapper
```
public PortMapper getPortMapper()
```
  - getServerPort
```
public int getServerPort(javax.servlet.ServletRequest request)
```
    Description copied from interface: PortResolver
    
    Indicates the port the ServletRequest was received on.
    
    Specified by:
    
    getServerPort in interface PortResolver
    
    Parameters:
    
    request - that the method should lookup the port for
    
    Returns:
    
    the port the request was received on
  - setPortMapper
```
public void setPortMapper(PortMapper portMapper)
```