JSF - Client Information

Question

How can I get the client's hostname, IP Address, browser information, etc? I'd like to do it in JSF, but if JSP is the only way to go -- that works, too.
Here's what I have so far for the IP:
FacesContext.getCurrentInstance().getExternalContext().getRequest().getRemoteAddr()But, of course, it doesn't work. Any help would be greatly appreciated.
Thanks.

Answer 1

Using scriplet:
<%
java.util.Enumeration names = request.getHeaderNames();
while (names.hasMoreElements()) {
String name = (String) names.nextElement();
out.println("<b>" + name + "</b>=" + request.getHeader(name) + "<br>");
%>
Using JSTL
<c:forEach items="${header}" var="h">
<b>
<c:out value="${h.key}"/>
</b>
=
<span style="color:Red;">
<c:out value="${h.value}"/>
</span>
</c:forEach>
Using JSF(without iteration)
<h:outputText id="header_i" value="#{header.host}"/>
<h:outputText id="header_i" value="#{header['userAgent']}"/>
(Iteration may be done using "dataTable" component of JSF)
And at some JSF code:
javax.servlet.http.HttpServletRequest request = ((javax.servlet.http.HttpServletRequest) FacesContext.getCurrentInstance().getExternalContext().getRequest());
request.getHeader("referer");
(or simple iteration)
Regards,
Oleksa Stelmakh