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Javascript Socket.IO和Node.js:Won';不要向服务器发送数据_Javascript_Node.js_Socket.io - Fatal编程技术网

Javascript Socket.IO和Node.js:Won';不要向服务器发送数据

Javascript Socket.IO和Node.js:Won';不要向服务器发送数据,javascript,node.js,socket.io,Javascript,Node.js,Socket.io,我正在学习使用Socket.IO和Node.JS,并尝试开始使用它进行自己的聊天。但是,聊天室中根本没有显示文本!有人能帮我吗 index.html <!doctype html> <html> <head> <title>Socket.IO chat</title> <style> * { margin: 0; padding: 0; box-sizing: border-box; }

我正在学习使用Socket.IO和Node.JS,并尝试开始使用它进行自己的聊天。但是,聊天室中根本没有显示文本!有人能帮我吗

index.html

<!doctype html>
<html>
  <head>
    <title>Socket.IO chat</title>
    <style>
      * { margin: 0; padding: 0; box-sizing: border-box; }
      body { font: 13px Helvetica, Arial; }
      form { background: #000; padding: 3px; position: fixed; bottom: 0; width: 100%; }
      form input { border: 0; padding: 10px; width: 90%; margin-right: .5%; }
      form button { width: 9%; background: rgb(130, 224, 255); border: none; padding: 10px; }
      #messages { list-style-type: none; margin: 0; padding: 0; }
      #messages li { padding: 5px 10px; }
      #messages li:nth-child(odd) { background: #eee; }
    </style>
   </head>
  <script src="/socket.io/socket.io.js"></script>
  <script src="http://code.jquery.com/jquery-1.11.1.js"></script>
  <script>
   var socket = io();
   $('form').submit(function(){
     socket.emit('chat message', $('#m').val());
     $('#m').val('');
     return false;
   });
   socket.on('chat message', function(msg){
     $('#messages').append($('<li>').text(msg));
   });
 </script>
 <body>
    <ul id="messages"></ul>
    <form action="">
       <input id="m" autocomplete="off" /><button>Send</button>
    </form>
 </body>
</html>
package.json

{
  "name": "socket-chat-example",
  "version": "0.0.1",
  "description": "my first socket.io app",
  "dependencies": {
    "express": "^4.10.2",
    "socket.io": "^1.7.2"
  }
}

这是因为socket.io或express的版本导致的,还是什么原因?如果你知道原因,谢谢你

我只需要将脚本移到标记后面。那么,nvm

我以前也遇到过同样的问题,当我使用broadcast.emit时,它收到了msges

 io.broadcast.emit('chat message', msg);

您是否在js和节点服务器中添加了一些
console.log
调用,以查看是否发送和接收聊天消息?您能否在浏览器中查看
/socket.io/socket.io.js
 io.broadcast.emit('chat message', msg);