How to use

removeAttribute

method

in

org.apache.shiro.session.Session

/**
 * Immediately delegates to the underlying proxied session.
 */
public Object removeAttribute(Object key) throws InvalidSessionException {
  return delegate.removeAttribute(key);
}

/**
 * Removes any existing subject state from the Subject's session (if the session exists).  If the session
 * does not exist, this method does not do anything.
 *
 * @param subject the subject for which any existing subject state will be removed from its session.
 */
protected void removeFromSession(Subject subject) {
  Session session = subject.getSession(false);
  if (session != null) {
    session.removeAttribute(DefaultSubjectContext.AUTHENTICATED_SESSION_KEY);
    session.removeAttribute(DefaultSubjectContext.PRINCIPALS_SESSION_KEY);
  }
}

private void clearRunAsIdentities() {
  Session session = getSession(false);
  if (session != null) {
    session.removeAttribute(RUN_AS_PRINCIPALS_SESSION_KEY);
  }
}

/**
 * 移除shiro指定的sessionKey
 */
public static void removeSessionAttr(String key) {
  Session session = getSession();
  if (session != null)
    session.removeAttribute(key);
}

public void removeAttribute(String s) {
  try {
    Object attribute = getSession().removeAttribute(s);
    afterUnbound(s, attribute);
  } catch (InvalidSessionException e) {
    throw new IllegalStateException(e);
  }
}

public static SavedRequest getAndClearSavedRequest(ServletRequest request) {
  SavedRequest savedRequest = getSavedRequest(request);
  if (savedRequest != null) {
    Subject subject = SecurityUtils.getSubject();
    Session session = subject.getSession();
    session.removeAttribute(SAVED_REQUEST_KEY);
  }
  return savedRequest;
}

public Object removeAttribute(SessionKey sessionKey, Object attributeKey) throws InvalidSessionException {
  Session s = lookupRequiredSession(sessionKey);
  Object removed = s.removeAttribute(attributeKey);
  if (removed != null) {
    onChange(s);
  }
  return removed;
}

  private void tryToCleanSession(Session session) {
    Collection<Object> keys = session.getAttributeKeys();
    for (Object key : keys) {
      session.removeAttribute(key);
    }
  }
};

session.removeAttribute(DefaultSubjectContext.PRINCIPALS_SESSION_KEY);

/**
 * Immediately delegates to the underlying proxied session.
 */
public Object removeAttribute(Object key) throws InvalidSessionException {
  return delegate.removeAttribute(key);
}

if (existingAuthc != null) {
  session.removeAttribute(DefaultSubjectContext.AUTHENTICATED_SESSION_KEY);

/**
 * Removes any existing subject state from the Subject's session (if the session exists).  If the session
 * does not exist, this method does not do anything.
 *
 * @param subject the subject for which any existing subject state will be removed from its session.
 */
protected void removeFromSession(Subject subject) {
  Session session = subject.getSession(false);
  if (session != null) {
    session.removeAttribute(DefaultSubjectContext.AUTHENTICATED_SESSION_KEY);
    session.removeAttribute(DefaultSubjectContext.PRINCIPALS_SESSION_KEY);
  }
}

private void clearRunAsIdentities() {
  Session session = getSession(false);
  if (session != null) {
    session.removeAttribute(RUN_AS_PRINCIPALS_SESSION_KEY);
  }
}

public Object removeAttribute(SessionKey sessionKey, Object attributeKey) throws InvalidSessionException {
  Session s = lookupRequiredSession(sessionKey);
  Object removed = s.removeAttribute(attributeKey);
  if (removed != null) {
    onChange(s);
  }
  return removed;
}

session.removeAttribute(DefaultSubjectContext.PRINCIPALS_SESSION_KEY);

if (existingAuthc != null) {
  session.removeAttribute(DefaultSubjectContext.AUTHENTICATED_SESSION_KEY);

/**
 * 移除shiro指定的sessionKey
 */
public static void removeSessionAttr(String key) {
  Session session = getSession();
  if (session != null)
    session.removeAttribute(key);
}

private void clearRunAsIdentities() {
  Session session = getSession(false);
  if (session != null) {
    session.removeAttribute(RUN_AS_PRINCIPALS_SESSION_KEY);
  }
}

@SuppressWarnings("unchecked")
@Override
public V remove(K key) throws CacheException {
  V value = null;
  value = (V) getSession().removeAttribute(cacheKeyName);
  logger.debug("remove {} {}", cacheKeyName, key);
  return value;
}

public static String getKaptcha(String key) {
  Object kaptcha = getSessionAttribute(key);
  if(kaptcha == null){
    throw new RRException("验证码已失效");
  }
  getSession().removeAttribute(key);
  return kaptcha.toString();
}