How to achieve a simple HTTP server

File name: myhtpservertest.java

Import java.io. *; import java.Net. *; import java.util. *;

/ ** * main * / public class myhttpsertest {

String m_szServerName; // server name String m_szVersion; // server version int m_nServerPort; // port public MyHttpServerTest (String szServerName, String szVersion, int nServerPort) {this.m_szServerName = szServerName; this.m_szVersion = szVersion; this.m_nServerPort = nServerPort } / ** * Show version information * / public void showserverinformation () {system.out.println ("Welcome to newman HTTP Server!"); System.out.Println ("Server Name: this.m_szservername) System.out.println ("Server Version:" this.m_szversion);} public void start () {this.showserverinformation ();

try {ServerSocket server = new ServerSocket (this.m_nServerPort); while (true) {Socket client = server.accept (); (new HttpClientThread (client)) run ();.}} catch (Exception e) {e.printStackTrace (); System.exit (1);}} public static void main (String args []) {MyHttpservertest Server = New MyHttpservertest ("MyHttpservertest", "1.0", 80); server.start ();}}

class HttpClientThread implements Runnable {Socket m_sClient; HTTPRequest m_Request; HttpClientThread (Socket sClient) throws IOException {this.m_sClient = sClient; this.m_Request = new HTTPRequest (this.m_sClient);} public void run () {try {System.out. Println (this.getconnectinfo ()); bufferedoutputstream out = new bufferedoutputstream (this.m_sclient .getoutputstream ()); system.Out.println (this.m_request.getlog ());

if (this.m_Request.isGetRequest ()) this.processGetRequest (this.m_Request, out); System.out.println ( "Request completed Closing connection.."); this.m_sClient .close ();} catch (IOException e ) {System.out.println ( "IOException occurred."); e.printStackTrace ();}} / ** * get Connect Info * / public String getConnectInfo () {String szClientHostName = this.m_sClient .getInetAddress () getHostName. (); String szClientAddress = this.m_sClient .getInetAddress () .getHostAddress (); int ClientPort = this.m_sClient .getPort (); String szRet = ""; szRet = "Accepted connection from" szClientHostName "(" szClientAddress " ) " " on port " clientport ". "; returnis

void processGetRequest (HTTPRequest request, BufferedOutputStream out) throws IOException {String szFileName = request.getFileName (); File file = new File (szFileName); if (file.exists ()) this.sendFile (out, file); else {/ The file does not exist system.out.println ("file" file.getcanonicalPath () "does not exist."); String notfound = "