目标：
1.用户打开一个网页，点击连接后可以发送消息，展示在消息推送的位置，其他在线的用户也能看得到
2.admin页面访问能发送消息，index页面访问只能看消息不能发送消息
(一).网页：
admin.html
<!DOCTYPE html> <html> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <head> <!-- pom.xml使用了webjars声明了版本号，所以这里导入不需要版本号 --> <title>Hello WebSocket</title> <link href="/webjars/bootstrap/css/bootstrap.min.css" rel="stylesheet"> <link href="/v1/main.css" rel="stylesheet"> <script src="/webjars/jquery/jquery.min.js"></script> <script src="/webjars/sockjs-client/sockjs.min.js"></script> <script src="/webjars/stomp-websocket/stomp.min.js"></script> <script src="/v1/app.js"></script> </head> <body> <noscript><h2 style="color: #ff0000">Seems your browser doesn't support Javascript! Websocket relies on Javascript being enabled. Please enable Javascript and reload this page!</h2></noscript> <div id="main-content" class="container"> <div class="row"> <div class="col-md-6"> <form class="form-inline"> <div class="form-group"> <label for="connect">建立连接通道:</label> <button id="connect" class="btn btn-default" type="submit">Connect</button> <button id="disconnect" class="btn btn-default" type="submit" disabled="disabled">Disconnect</button> </div> </form> </div> <div class="col-md-6"> <form class="form-inline"> <div class="form-group"> <label for="name">发布新公告</label> <input type="text" id="content" class="form-control" placeholder="请输入..."> </div> <button id="send" class="btn btn-default" type="submit">发布</button> </form> </div> </div> <div class="row"> <div class="col-md-12"> <table id="conversation" class="table table-striped"> <thead> <tr> <th>游戏公告内容</th> </tr> </thead> <tbody id="notice"> <!-- 内容展示 --> </tbody> </table> </div> </div> </div> </body> </html>