tomcat 4.1.30启动过程的源码分析

        File file = configFile();

        try {

            InputSource is =

                new InputSource("file://" + file.getAbsolutePath());

            FileInputStream fis = new FileInputStream(file);

            is.setByteStream(fis);

            digester.push(this);

            digester.parse(is);

            fis.close();

        } catch (Exception e) {

            System.out.println("Catalina.start: " + e);

            e.printStackTrace(System.out);

            System.exit(1);

        }    
     

        // Start the new server

        if (server instanceof Lifecycle) {

            try {

                server.initialize();

                ((Lifecycle) server).start();

                try {

                    // Register shutdown hook

                    Runtime.getRuntime().addShutdownHook(shutdownHook);

                } catch (Throwable t) {

                    // This will fail on JDK 1.2. Ignoring, as Tomcat can run

                    // fine without the shutdown hook.

                }

                // Wait for the server to be told to shut down

                server.await();

            } catch (LifecycleException e) {

                System.out.println("Catalina.start: " + e);

                e.printStackTrace(System.out);

                if (e.getThrowable() != null) {

                    System.out.println("----- Root Cause -----");

                    e.getThrowable().printStackTrace(System.out);

                }

            }

        }