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Httpd.javaAPI DocExample2790Sat Apr 28 10:22:50 BST 2001None

Httpd

public class Httpd extends Object
A very very simple Web server. NO SECURITY. ALMOST NO CONFIGURATION. NO CGI. NO SERVLETS. This version is threaded. I/O is done in Handler. TODO Web Standard logfile formats. More property definitions...

Fields Summary
public static final int
HTTP
The default port number
protected ServerSocket
sock
The server socket used to connect from clients
protected Properties
wsp
A Properties, for loading configuration info
protected Properties
mimeTypes
A Properties, for loading mime types into
protected String
rootDir
The root directory
Constructors Summary
Httpd()
Construct a server object for a given port number

		super();
		// A ResourceBundle can't load from the same basename as your class,
		// but a simple Properties can.
		wsp=loadProps("httpd.properties");
		rootDir = wsp.getProperty("rootDir", ".");
		mimeTypes = loadProps(wsp.getProperty("mimeProperties", "mime.properties"));
Methods Summary
protected java.util.PropertiesloadProps(java.lang.String fname)
Load the Properties.

		Properties sp = new Properties();

		try {
			// Create input file to load from.
			FileInputStream ifile = new FileInputStream(fname);

			sp.load(ifile);
		} catch (FileNotFoundException notFound) {
			System.err.println(notFound);
			System.exit(1);
		} catch (IOException badLoad) {
			System.err.println(badLoad);
			System.exit(1);
		}
		return sp;
public static voidmain(java.lang.String[] argv)


	     
		System.out.println("DarwinSys JavaWeb Server 0.1 starting...");
		Httpd w = new Httpd();
		if (argv.length == 2 && argv[0].equals("-p")) {
			w.startServer(Integer.parseInt(argv[1]));
		} else {
			w.startServer(HTTP);
		}

		w.runServer();
		// NOTREACHED
voidrunServer()
Run the main loop of the Server. Each time a client connects, the ServerSocket accept() returns a new Socket for I/O, and we pass that to the Handler constructor, which creates a Thread, which we start.

		while (true) {
			try {
				Socket clntSock = sock.accept();
				new Handler(this, clntSock).start();
			} catch(IOException e) {
				System.err.println(e);
			}
		}
public voidstartServer(int portNum)

		String portNumString = null;
		if (portNum == HTTP) {
			portNumString = wsp.getProperty("portNum");
			if (portNumString != null) {
				portNum = Integer.parseInt(portNumString);
			}
		}
		try {
			sock = new ServerSocket(portNum);
		} catch(NumberFormatException e) {
			System.err.println("Httpd: \"" + portNumString +
				"\" not a valid number, unable to start server");
			System.exit(1);
		} catch(IOException e) {
			System.err.println("Network error " + e);
			System.err.println("Unable to start server");
			System.exit(1);
		}