public abstract class Authenticator extends Object
Applications use this class by creating a subclass, and registering an instance of that subclass with the session when it is created. When authentication is required, the system will invoke a method on the subclass (like getPasswordAuthentication). The subclass's method can query about the authentication being requested with a number of inherited methods (getRequestingXXX()), and form an appropriate message for the user.
All methods that request authentication have a default implementation that fails.
Authenticator
,
Session.getInstance(java.util.Properties,
javax.mail.Authenticator)
,
Session.getDefaultInstance(java.util.Properties,
javax.mail.Authenticator)
,
Session.requestPasswordAuthentication(java.net.InetAddress, int, java.lang.String, java.lang.String, java.lang.String)
,
PasswordAuthentication
Constructor and Description |
---|
Authenticator() |
Modifier and Type | Method and Description |
---|---|
protected String |
getDefaultUserName() |
protected PasswordAuthentication |
getPasswordAuthentication()
Called when password authentication is needed.
|
protected int |
getRequestingPort() |
protected String |
getRequestingPrompt() |
protected String |
getRequestingProtocol()
Give the protocol that's requesting the connection.
|
protected InetAddress |
getRequestingSite() |
protected final InetAddress getRequestingSite()
protected final int getRequestingPort()
protected final String getRequestingProtocol()
URLName.getProtocol()
protected final String getRequestingPrompt()
protected final String getDefaultUserName()
protected PasswordAuthentication getPasswordAuthentication()
Note that if this method uses a dialog to prompt the user for this information, the dialog needs to block until the user supplies the information. This method can not simply return after showing the dialog.
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