Web Socket测试

最新推荐文章于 2025-01-11 20:41:37 发布

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#socket #web #测试

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本文主要探讨了Web Socket的测试，包括后台代码的测试和前台HTML代码的实现，阐述了如何确保Web Socket的稳定性和高效通信。

Web Socket测试

后台代码

import java.io.IOException;

import javax.websocket.OnClose;
import javax.websocket.OnMessage;
import javax.websocket.OnOpen;
import javax.websocket.Session;
import javax.websocket.server.ServerEndpoint;

@ServerEndpoint("/websocket")
public class Test {

     @OnMessage
      public void onMessage(String message, Session session)
        throws IOException, InterruptedException {
        // Print the client message for testing purposes
        System.out.println("Received: " + message);
        // Send the first message to the client
        session.getBasicRemote().sendText("This is the first server message");
        // Send 3 messages to the client every 5 seconds
        int sentMessages = 0;
        while(sentMessages < 3){
          Thread.sleep(5000);
          session.getBasicRemote().
            sendText("This is an intermediate server message. Count: "
              + sentMessages);
          sentMessages++;
        }
        // Send a final message to the client
        session.getBasicRemote().sendText("This is the last server message");
      }

      @OnOpen
      public void onOpen() {
        System.out.println("Client connected");
      }

      @OnClose
      public void onClose() {
        System.out.println("Connection closed");
      }


}

前台HTML代码

<body>
    <div>
    <input type="submit" value="Start" onclick="start()" />
  </div>
  <div id="messages"></div>
  <script type="text/javascript">
    var webSocket =
      new WebSocket('ws://localhost:8080/websocket/websocket');

    webSocket.onerror = function(event) {
      onError(event)
    };

    webSocket.onopen = function(event) {
      onOpen(event)
    };

    webSocket.onmessage = function(event) {
      onMessage(event)
    };

    function onMessage(event) {
      document.getElementById('messages').innerHTML
        += '<br />' + event.data;
    }

    function onOpen(event) {
      document.getElementById('messages').innerHTML
        = 'Connection established';
    }

    function onError(event) {
      alert(event.data);
    }

    function start() {
      webSocket.send('hello');
      return false;
    }
  </script>
  </body>