RequestDispatcherServiceImpl.java 文件源码

public PortletRequestDispatcher getNamedDispatcher(ServletContext servletContext, PortletApplicationDefinition app,
                                                   String name)
{
    if (LOG.isDebugEnabled())
    {
        LOG.debug("Named PortletRequestDispatcher requested for name: "+name+" at context: "+app.getContextPath());
    }

    RequestDispatcher dispatcher = servletContext.getNamedDispatcher(name);
    if (dispatcher != null)
    {
        return new PortletRequestDispatcherImpl(dispatcher, name, true);
    }
    if (LOG.isInfoEnabled())
    {
        LOG.info("No matching request dispatcher found for name: "+ name);
    }
    return null;
}