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  • websocket

    http://www.oschina.net/translate/java-ee-html5-websocket-example
        服务端代码:
        
    1. package com.byteslounge.websockets;
    2. import java.io.IOException;
    3. import javax.websocket.OnClose;
    4. import javax.websocket.OnMessage;
    5. import javax.websocket.OnOpen;
    6. import javax.websocket.Session;
    7. import javax.websocket.server.ServerEndpoint;
    8. @ServerEndpoint("/websocket")
    9. public class WebSocketTest {
    10. @OnMessage
    11. public void onMessage(String message, Session session)
    12. throws IOException, InterruptedException {
    13. // Print the client message for testing purposes
    14. System.out.println("Received: " + message);
    15. // Send the first message to the client
    16. session.getBasicRemote().sendText("This is the first server message");
    17. // Send 3 messages to the client every 5 seconds
    18. int sentMessages = 0;
    19. while(sentMessages < 3){
    20. Thread.sleep(5000);
    21. session.getBasicRemote().
    22. sendText("This is an intermediate server message. Count: "
    23. + sentMessages);
    24. sentMessages++;
    25. }
    26. // Send a final message to the client
    27. session.getBasicRemote().sendText("This is the last server message");
    28. }
    29. @OnOpen
    30. public void onOpen() {
    31. System.out.println("Client connected");
    32. }
    33. @OnClose
    34. public void onClose() {
    35. System.out.println("Connection closed");
    36. }
    37. }
        客户端代码:  
    1. var webSocket =
    2. new WebSocket('ws://localhost:8080/byteslounge/websocket');
    3. webSocket.onerror = function(event) {
    4. onError(event)
    5. };
    6. webSocket.onopen = function(event) {
    7. onOpen(event)
    8. };
    9. webSocket.onmessage = function(event) {
    10. onMessage(event)
    11. };
    12. function onMessage(event) {
    13. document.getElementById('messages').innerHTML
    14. += '<br />' + event.data;
    15. }
    16. function onOpen(event) {
    17. document.getElementById('messages').innerHTML
    18. = 'Connection established';
    19. }
    20. function onError(event) {
    21. alert(event.data);
    22. }
    23. function start() {
    24. webSocket.send('hello');
    25. return false;
    26. }





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  • 原文地址:https://www.cnblogs.com/vvch/p/4961132.html
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