首先,我使用 node js 和 ws 模块构建了一个 websocket 服务器。然后使用 chrome 和 firefox,我连接到该服务器并成功建立连接。但是,我从浏览器发送的消息没有到达服务器。如果收到消息,我在服务器上有一些代码可以控制台。注销。什么都没有出现,但是当我刷新浏览器时,我之前发送的消息到达了。消息在发送时没有到达,但只有在我刷新页面时才会到达。我不知道为什么。这似乎适用于其他一些计算机,但不适用于我的计算机。
这是服务器代码:
var WebSocketServer = require('ws').Server
, http = require('http')
, express = require('express')
, app = express();
app.use(express.static(__dirname + '/views'));
var rmi = require('./RMIClient.js');
console.log(rmi);
var server = http.createServer(app);
server.listen(8080);
var wss = new WebSocketServer({server: server});
// from here is the logic codes
var clients = [];
var clientId = 0;
wss.on('connection', function(ws) {
console.log("connection established for client "+ (clients.length+1));
clients.push(ws);
console.log("index is " + clients.indexOf(ws));
clientId += 1;
ws.send("Hello Client: " + clientId);
//
// ws.send("Welcome from AMTT Chatting Server");
ws.on('message',function(data){
console.log('message receieved : '+data);
for(var i = 0;i<clients.length;i++){
clients[i].send(data);
}
});
ws.on('a',function(){
console.log("a event fire from client");
});
ws.on('close', function() {
var index = clients.indexOf(ws);
console.log('stopping client interval '+index);
if (index > -1) {
clients.splice(index, 1);
}
});
});
这是客户端代码:
<html>
<script>
//var ws = new WebSocket('ws://localhost:8080/');
var messagearea,inputarea,sendButton;
var connection = new WebSocket(/*'wss://echo.websocket.org');*/'ws://192.168.8.195:8080/');
// When the connection is open, send some data to the server
console.log(connection.readyState);
connection.onopen = function () {
console.log(connection.readyState);
inputarea.disabled = false;
sendButton.disabled = false;
};
// Log errors
connection.onerror = function (error) {
console.log('sorry connection fail:' + JSON.stringify(error));
};
// Log messages from the server
connection.onmessage = function (e) {
messagearea.value = messagearea.value + '\n' + e.data;
console.log('Server: ' + e.data);
};
function sendMessage(){
if(inputarea.value !='')
connection.send(inputarea.value);
inputarea.value = '';
}
</script>
<body>
<textarea rows="15" cols="100" id="messagearea" disabled>
</textarea>
<br/>
<textarea rows="2" cols="90" id="inputarea" required autofocus>
</textarea>
<input type = 'button' value = 'send' id = 'sendbutton' onclick = "sendMessage()"/>
</body>
<script>
messagearea = document.getElementById('messagearea');
messagearea.value = '';
inputarea = document.getElementById('inputarea');
inputarea.value = '';
inputarea.disabled = true;
sendButton = document.getElementById('sendbutton');
sendButton.disabled = true;
</script>
</html>
当我用java开发代码并部署在wildfly服务器中时,我再次发现了这种情况。我搞不清楚了。我认为我的网卡有问题。因为相同的代码在我朋友的机器上运行良好。
有没有人遇到过这种情况?或任何解决方案?