您好,登錄后才能下訂單哦!
這篇文章主要講解了“Java Socket線程的設(shè)計原理是什么”,文中的講解內(nèi)容簡單清晰,易于學(xué)習(xí)與理解,下面請大家跟著小編的思路慢慢深入,一起來研究和學(xué)習(xí)“Java Socket線程的設(shè)計原理是什么”吧!
Java Socket線程我們經(jīng)常會用到的技術(shù),但是有很多程序員還是有不少的使用問題,下面我們就看看如何才能進(jìn)行有關(guān)的代碼編寫,希望大家又說收獲。網(wǎng)絡(luò)的偉大之一也是信息共享,Server可以主動向所有Client廣播消息,同時Client也可以向其它Client發(fā)布消息。
下面看看如何開發(fā)一個可以實時傳遞消息的程序。
Java Socket線程的設(shè)計原理:
服務(wù)器端接受客戶端的連接請求,同時啟動一個線程處理這個連接,線程不停的讀取客戶端輸入,然后把輸入加入隊列中,等候處理。在線程啟動的同時將線程加入隊列中,以便在需要的時候定位和取出。
{源碼}
import java.io.*; import java.net.*; import java.util.*; import java.lang.*; public class Server extends ServerSocket { private static ArrayList User_List = new ArrayList(); private static ArrayList Threader = new ArrayList(); private static LinkedList Message_Array = new LinkedList(); private static int Thread_Counter = 0; private static boolean isClear = true; protected static final int SERVER_PORT = 10000; protected FileOutputStream LOG_FILE = new FileOutputStream("d:/connect.log", true); public Server() throws FileNotFoundException, IOException { super(SERVER_PORT); new Broadcast(); //append connection log Calendar now = Calendar.getInstance(); String str = "[" + now.getTime().toString() + "] Accepted a connection1512"; byte[] tmp = str.getBytes(); LOG_FILE.write(tmp); try { while (true) { Socket socket = accept(); new CreateServerThread(socket); } } finally { close(); } } public static void main(String[] args) throws IOException { new Server(); } //--- Broadcast class Broadcast extends Thread { public Broadcast() { start(); } public void run() { while (true) { if (!isClear) { String tmp = (String)Message_Array.getFirst(); for (int i = 0; i < Threader.size(); i++) { CreateServerThread client = (CreateServerThread)Threader.get(i); client.sendMessage(tmp); } Message_Array.removeFirst(); isClear = Message_Array.size() > 0 ? false : true; } } } } //--- CreateServerThread class CreateServerThread extends Thread { private Socket client; private BufferedReader in; private PrintWriter out; private String Username; public CreateServerThread(Socket s) throws IOException { client = s; in = new BufferedReader(new InputStreamReader(client.getInputStream())); out = new PrintWriter(client.getOutputStream(), true); out.println("--- Welcome to this chatroom ---"); out.println("Input your nickname:"); start(); } public void sendMessage(String msg) { out.println(msg); } public void run() { try { int flag = 0; Thread_Counter++; String line = in.readLine(); while (!line.equals("bye")) { if (line.equals("l")) { out.println(listOnlineUsers()); line = in.readLine(); continue; } if (flag++ == 0) { Username = line; User_List.add(Username); out.println(listOnlineUsers()); Threader.add(this); pushMessage("[< " + Username + " come on in >]"); } else { pushMessage("<" + Username + ">" + line); } line = in.readLine(); } out.println("--- See you, bye! ---"); client.close(); } catch (IOException e) {} finally { try { client.close(); } catch (IOException e) {} Thread_Counter--; Threader.remove(this); User_List.remove(Username); pushMessage("[< " + Username + " left>]"); } } private String listOnlineUsers() { String s ="-+- Online list -+-1512"; for (int i = 0; i < User_List.size(); i++) { s += "[" + User_List.get(i) + "]1512"; } s += "-+---------------------+-"; return s; } private void pushMessage(String msg) { Message_Array.addLast(msg); isClear = false; } } }
感謝各位的閱讀,以上就是“Java Socket線程的設(shè)計原理是什么”的內(nèi)容了,經(jīng)過本文的學(xué)習(xí)后,相信大家對Java Socket線程的設(shè)計原理是什么這一問題有了更深刻的體會,具體使用情況還需要大家實踐驗證。這里是億速云,小編將為大家推送更多相關(guān)知識點的文章,歡迎關(guān)注!
免責(zé)聲明:本站發(fā)布的內(nèi)容(圖片、視頻和文字)以原創(chuàng)、轉(zhuǎn)載和分享為主,文章觀點不代表本網(wǎng)站立場,如果涉及侵權(quán)請聯(lián)系站長郵箱:is@yisu.com進(jìn)行舉報,并提供相關(guān)證據(jù),一經(jīng)查實,將立刻刪除涉嫌侵權(quán)內(nèi)容。