一个简单的c_s多线程应用（A simple c_s multithreaded application）.docVIP

一个简单的c_s多线程应用（A simple c_s multithreaded application） A simple multi-threaded application C/S, a little expansion can be used /*socket is the core of network applications, and socket is an essential element in server side or client network applications * common applications on the server are: FTP server, MAIL server (SMTP, POP3, IMAP4 protocol), WEB (HTTP protocol) * the application steps for building server-side SOCKET are as follows: *1. Create server side SOCKET and listen for client connection requests *2. When the server detects a connection request from the client, it receives the request and establishes the clients SOCKET, which will be used as the SOCEKT * client connections and subsequent processing, sending and receiving data on the basis, so far, the server and the client to complete the SOCKET communication link *3. Processing information from a client, commonly called a request, can be considered as a clients instruction requirement. For example, the URL request for the HTTP communication protocol, * or FTP commands for FTP communication protocols (such as GET, PUT, etc.) *4. According to the request from the client, the server needs to be processed by program logic, and then send back the corresponding result or error information to the server * clients, such as HTTP servers, have to send back the contents of the HTML page, while the FTP server sends back the results of the FTP command *5. When the program finishes processing data or commands, it closes the SOCKET communication link * / * SimpleServer.java * / Import .*; Import java.io.*; Public class simpleServer { Private static ServerSocket serverSocket; Private static listenClient listen; Public, static, void, main (String[], args) throws Exception { Int port; If (args.length==0) { System.out.println (Usage:java simpleServer [port]); System.exit (1); } Port=Integer.parseInt (args[0]); StartServer (port); } Public, static, void, startServer (int, port) throws Exception { Try { ServerSocket=new Serve