PortletRequestAttributes.java 文件源码

@Override
public void setAttribute(String name, Object value, int scope) {
    if (scope == SCOPE_REQUEST) {
        if (!isRequestActive()) {
            throw new IllegalStateException(
                    "Cannot set request attribute - request is not active anymore!");
        }
        this.request.setAttribute(name, value);
    }
    else {
        PortletSession session = getSession(true);
        if (scope == SCOPE_GLOBAL_SESSION) {
            session.setAttribute(name, value, PortletSession.APPLICATION_SCOPE);
            this.globalSessionAttributesToUpdate.remove(name);
        }
        else {
            session.setAttribute(name, value);
            this.sessionAttributesToUpdate.remove(name);
        }
    }
}