ResourceContext.get().setCurrentURI(getURI().getURI());
((HttpSession) getSession()).getClient().executeMethod(httpget);
if (httpget.getStatusCode() != 200) {
throw new ResourceNotFoundException(HttpStatus.getStatusText(httpget.getStatusCode()));
}
// �ɹ���������Ա����ظ���ʾ��������
ResourceContext.get().getVisitedURIs().remove(new ResourceKey(new ResourceURI(getURI().getURI())));