HttpServletRequestAdapter.java 文件源码

public BufferedReader getReader() throws IOException {

        PortletRequest portletRequest = getWrapped();

        if (portletRequest instanceof ClientDataRequest) {
            ClientDataRequest clientDataRequest = (ClientDataRequest) portletRequest;

            return clientDataRequest.getReader();
        } else {
            throw new UnsupportedOperationException();
        }
    }