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javatomcatcatalina

Getting tomcat's installation directory using java

I want to get tomcat's installation directory in my computer using java. I tried using :

System.getProperty("catalina.base");

and

System.getProperty("catalina.home");

But both methods return null as the answer. I tried it with System.getProperty("java.home"); and it correctly returns the java path. Any ideas as to what the problem is? Thanks

Solution

  • Try installing this JSP and passing various values for the "property" parameter:

    <%
  String propertyName = request.getParameter("property");
  Object propertyValue;
  String typeString;
  if(null == propertyName)
    propertyValue = null;
  else
    propertyValue = System.getProperty(propertyName);

  if(null == propertyValue)
    typeString = "null";
  else
    typeString = propertyValue.getClass().getName();
%>
The system property <code><%= propertyName %></code> has the value:
<code><%= propertyValue %></code> (<%= typeString %>).

    Maybe you can find a pattern to which property values return null.