HttpServletRequestAdapter.java 文件源码

public void setCharacterEncoding(String enc)
        throws UnsupportedEncodingException {
    PortletRequest portletRequest = getWrapped();

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

        clientDataRequest.setCharacterEncoding(enc);
    } else {
        throw new UnsupportedOperationException();
    }
}