本文整理匯總了Java中javax.security.auth.callback.UnsupportedCallbackException.getCallback方法的典型用法代碼示例。如果您正苦於以下問題：Java UnsupportedCallbackException.getCallback方法的具體用法？Java UnsupportedCallbackException.getCallback怎麽用？Java UnsupportedCallbackException.getCallback使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類javax.security.auth.callback.UnsupportedCallbackException的用法示例。
在下文中一共展示了UnsupportedCallbackException.getCallback方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: getUsernameAndPassword
import javax.security.auth.callback.UnsupportedCallbackException; //導入方法依賴的package包/類
/**
* Called by login() to acquire the username and password strings for authentication. This method does no validation
* of either.
*
* @return String[], [0] = username, [1] = password
*/
private String[] getUsernameAndPassword() throws LoginException {
if (callbackHandler == null) {
throw new LoginException("No CallbackHandler available to collect authentication information");
}
NameCallback nc = new NameCallback("User name: ", "guest");
PasswordCallback pc = new PasswordCallback("Password: ", false);
Callback[] callbacks = { nc, pc };
String username = null;
String password = null;
try {
callbackHandler.handle(callbacks);
username = nc.getName();
char[] tmpPassword = pc.getPassword();
if (tmpPassword != null) {
credential = new char[tmpPassword.length];
System.arraycopy(tmpPassword, 0, credential, 0, tmpPassword.length);
pc.clearPassword();
password = new String(credential);
}
} catch (IOException ioe) {
throw new LoginException(ioe.toString());
} catch (UnsupportedCallbackException uce) {
throw new LoginException("CallbackHandler does not support: " + uce.getCallback());
}
return new String[] { username, password };
}