程序包 javax.security.auth.callback

类 PasswordCallback

java.lang.Object

javax.security.auth.callback.PasswordCallback

所有已实现的接口:

Serializable, Callback

public class PasswordCallback
extends Object
implements Callback, Serializable

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

另请参阅:

CallbackHandler, 序列化表格

构造器概要

构造器

构造器	说明
PasswordCallback(String prompt, boolean echoOn)	Construct a PasswordCallback with a prompt and a boolean specifying whether the password should be displayed as it is being typed.

方法概要

限定符和类型	方法	说明
void	clearPassword()	Clear the retrieved password.
char[]	getPassword()	Get the retrieved password.
String	getPrompt()	Get the prompt.
boolean	isEchoOn()	Return whether the password should be displayed as it is being typed.
void	setPassword(char[] password)	Set the retrieved password.

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

PasswordCallback

public PasswordCallback(String prompt,
                        boolean echoOn)

Construct a PasswordCallback with a prompt and a boolean specifying whether the password should be displayed as it is being typed.

参数:

prompt - the prompt used to request the password.

echoOn - true if the password should be displayed as it is being typed.

抛出:

IllegalArgumentException - if prompt is null or if prompt has a length of 0.

方法详细资料

getPrompt

public String getPrompt()

Get the prompt.

返回:

the prompt.

isEchoOn

public boolean isEchoOn()

Return whether the password should be displayed as it is being typed.

返回:

the whether the password should be displayed as it is being typed.

setPassword

public void setPassword(char[] password)

Set the retrieved password.

This method makes a copy of the input password before storing it.

参数:

password - the retrieved password, which may be null.

另请参阅:

getPassword()

getPassword

public char[] getPassword()

Get the retrieved password.

This method returns a copy of the retrieved password.

返回:

the retrieved password, which may be null.

另请参阅:

setPassword(char[])

clearPassword

public void clearPassword()

Clear the retrieved password.