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demo.jsp
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<%@ page language="java" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset=UTF-8">
<title>信息发送页面</title>
</head>
<body>
<h2>WebSocket</h2>
<h3>发布新通知</h3>
<form action="<%= application.getContextPath()%>/manage/messagesend" method="post">
<p>请输入：<input type="text" name="message"></p>
<p><input type="submit" value="发送">${tip} </p>
</form>
<h3>收到的消息</h3>
<ul class="msg"></ul>
<script type="text/javascript" src="<%= application.getContextPath()%>/js/jquery-1.12.4.js"></script>
<script type="text/javascript">
$(function(){
/* 创建与服务器的连接，并让服务器保持会话 */
var ws = new WebSocket("ws://192.168.10.204:8080/<%=application.getContextPath() %>/websocket/handler");
ws.onopen = function(event) {
putDebug("websocket open ocurr");
}
ws.onmessage = function(event) {
putDebug("websocket message ocurr data: " + event.data);
}
ws.onclose = function(event) {
putDebug("websocket close ocurr");
}
ws.onerror = function(event){
putDebug("websocket error ocurr");
}
window.onbeforeunload = function() {
ws.close(); //关闭websocket连接
}
})
function putDebug(msg) {
$(".msg").append("<li>" + msg + "</li>");
}
</script>
</body>
</html>