import javax.servlet.*; import javax.servlet.http.*; import java.io.*; import java.util.*; import javax.naming.*; public class SystemDump extends HttpServlet { private static final String CONTENT_TYPE = "text/html"; private ServletConfig Config; private ServletContext Context; /**Initialize global variables*/ public void init(ServletConfig config) throws ServletException { super.init(config); } /**Process the HTTP Get request*/ public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { this.Config = this.getServletConfig(); this.Context = this.getServletContext(); response.setContentType(CONTENT_TYPE); PrintWriter out = response.getWriter(); out.println(""); out.println("SystemDump"); out.println(""); out.println(""); SortedMap props = new TreeMap( System.getProperties() ); Iterator it = props.entrySet().iterator(); while( it.hasNext() ) { Map.Entry me = (Map.Entry) it.next(); out.println(""); } Enumeration enum = Context.getInitParameterNames(); out.println(""); } enum = Config.getInitParameterNames(); out.println(""); while (enum.hasMoreElements()) { Object el = enum.nextElement(); out.println(""); } out.println(""); try { Context initCtx = new InitialContext(); NamingEnumeration ne = initCtx.listBindings("java:comp/env"); while (ne.hasMore()) { Binding binding = (Binding)ne.next(); out.println(""); } } catch (Exception ex) { out.println("Exception caught: " + ex.toString()); } // out.println(""); out.println("
System Properties:
" + me.getKey() + "" + me.getValue() + "
<web-app><context-param></web-app> Parameters for " + this.getServletName()+ "
"); while (enum.hasMoreElements()) { Object el = enum.nextElement(); out.println("
" + el.toString() + "" + Context.getInitParameter( el.toString() ) + "
<servlet><init-param></servlet> Parameters for " + Config.getServletName() + "
" + el.toString() + "" + Config.getInitParameter( el.toString() ) + "
java:comp/env entries for " + Config.getServletName() + "
" + binding.getName() + "" + binding.getObject() + " [" + binding.getClassName() + "]
" + x + "" + x + "
"); } /**Clean up resources*/ public void destroy() { } }