I am using tomcat 4.1.29, and would like to obtain the host name attribute from within my servlet code for the associated context in which I am running.
I have finally found a solution that seems to work:
Object dirContext = (Object)servlet.getServletContext().getAttribute("org.apache.catalina.resources");
Class dirContextClass = dirContext.getClass();
String host;
try {
Method hostMethod = dirContextClass.getMethod("getHostName",null);
host = (String)hostMethod.invoke(dirContext,null);
} catch (Exception e) {
System.out.println("[Exception] Cannot retrieve hostname: " + e);
}
It is not a general solution that will work with any container obviously, as it relies on the org.apache.naming.resources.ProxyDirContext Method getHostName().
BTW in this snippet servlet is org.apache.struts.action.ActionServlet I am calling this from the init() method defined in the Interface org.apache.struts.action.PlugIn.
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