Get display name from web.xml

Question

I am trying to get the display name (Context Root) from the web.xml file to avoid hard-coding the context root.

Any help would be appreciated.

Answer 1

ServletContext.getServletContextName()

Returns the name of this network. the application corresponding to this ServletContext, as specified in the deployment descriptor for this network application using the display name of the element.

Answer 2

- . " " " ". <display-name> web.xml, . <Context path> context.xml, ServletContext#getContextPath(). " " ( URL-, ).

Answer 3

En nombre puede obtener de la clase ServletContext. Con jsf

ExternalContext externalContext = FacesContext.getCurrentInstance().getExternalContext();
ServletContext servletContext= (ServletContext) externalContext.getContext();
System.out.println("Context Name: "+servletContext.getServletContextName());

Or inside the servlet

protected void doGet(HttpServletRequest request, HttpServletResponse response)
{
ServletContext servletContext= getServletContext();
System.out.println("Context Name: "+servletContext.getServletContextName());
}