程序包 javax.security.auth.callback

This package provides the classes necessary for services to interact with applications in order to retrieve information (authentication data including usernames or passwords, for example) or to display information (error and warning messages, for example).

从以下版本开始:

JDK1.4

接口概要

接口	说明
Callback	Implementations of this interface are passed to a CallbackHandler, allowing underlying security services the ability to interact with a calling application to retrieve specific authentication data such as usernames and passwords, or to display certain information, such as error and warning messages.
CallbackHandler	An application implements a CallbackHandler and passes it to underlying security services so that they may interact with the application to retrieve specific authentication data, such as usernames and passwords, or to display certain information, such as error and warning messages.

类概要

类	说明
PasswordCallback	Underlying security services instantiate and pass a PasswordCallback to the handle method of a CallbackHandler to retrieve password information.

异常错误概要

异常错误	说明
UnsupportedCallbackException	Signals that a CallbackHandler does not recognize a particular Callback.