Java Reference
In-Depth Information
[O'Reilly], recommended for administering Tomcat). The main program of my simple server
here constructs one instance of class
Httpd
. This creates a socket and waits for incoming cli-
ents in the
accept( )
method. Each time there is a return from
accept()
, we have another
client, so we create a new thread to process that client. This happens in the
main()
and
run-
server()
methods, which are near the beginning of
Example 22-17
.
Example 22-17. Httpd.java
/**
* A very very simple Web server.
* <p>
* NO SECURITY. ALMOST NO CONFIGURATION. NO CGI. NO SERVLETS.
*<p>
* This version is threaded. I/O is done in Handler.
*/
public
public class
Httpd
{
/** The default port number */
public
class
Httpd
public static
int
HTTP
=
80
;
/** The server socket used to connect from clients */
protected
static final
final
int
protected
ServerSocket sock
;
/** A Properties, for loading configuration info */
private
private
Properties wsp
;
/** A Properties, for loading mime types into */
private
private
Properties mimeTypes
;
/** The root directory */
private
private
String rootDir
;
public
public static
throws
Exception
{
System
.
out
.
println
(
"DarwinSys JavaWeb Server 0.1 starting..."
);
Httpd w
=
new
static
void
void
main
(
String argv
[])
throws
new
Httpd
();
iif
(
argv
.
length
==
2
&&
argv
[
0
].
equals
(
"-p"
)) {
w
.
startServer
(
Integer
.
parseInt
(
argv
[
1
]));
}
else
else
{
w
.
startServer
(
HTTP
);
}
w
.
runServer
();
// NOTREACHED
}
/** 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.
*/
void
void
runServer
()
throws
throws
Exception
{
