<html> <head> <title>聊天室</title> <meta charset="utf-8"/> <link href="http://libs.baidu.com/bootstrap/3.0.3/css/bootstrap.min.css" rel="stylesheet"> <script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script> <script src="http://libs.baidu.com/bootstrap/3.0.3/js/bootstrap.min.js"></script> <link href="./css/style.css" rel="stylesheet"/> <script> var maxid = 0; function showmessage() { //创建ajax对象 var xhr = new XMLHttpRequest(); //监听 xhr.onreadystatechange = function () { if (xhr.readyState === 4) { eval("var info=" + xhr.responseText); var text = ""; for (var i = 0; i < info.length; i++) { text += "<div class='alert alert-success'>" + "<span class='name'>" + info[i].send + ":</span>" + "<span class='message'>" + info[i].content + "</span>" + "<span>(" + info[i].time + ")</span>" + "</div>"; maxid = info[i].id; } var old = document.getElementById("msg").innerHTML; document.getElementById("msg").innerHTML = old + text; document.getElementById("msg").scrollTop = document.getElementById("msg").scrollHeight; } }; //初始化 xhr.open("get", "./action.php?maxid=" + maxid); //发送 xhr.send(); } $(document).ready( function () { showmessage() self.setInterval("showmessage()", 2000); } ); function send() { var postData ="content="+document.getElementById('content').value; var xhr = new XMLHttpRequest(); xhr.open("POST", "./add.php", true); //一定要写头信息不然服务器接收不到 xhr.setRequestHeader("Content-type", "application/x-www-form-urlencoded"); xhr.onreadystatechange = function () { var XMLHttpReq = xhr; if (XMLHttpReq.readyState == 4) { if (XMLHttpReq.status == 200) { document.getElementById('content').value=""; } } }; xhr.send(postData); } </script> </head> <body> <div class="panel panel-default" id="main"> <!--聊天室名字--> <div class="panel-heading"> <h3 class="panel-title"> 匿名者聊天室 </h3> </div> <!--聊天室名字--> <!--聊天室消息框--> <div class="panel-body "> <div class="well no-bottom "> <!-- 消息框样式--> <!-- <div class="alert alert-success">成功!很好地完成了提交。</div> <div class="alert alert-info">信息!请注意这个信息。</div> <div class="alert alert-warning">警告!请不要提交。</div> <div class="alert alert-danger">错误!请进行一些更改。</div> --> <div id="msg" class="showmessage"> </div> <!--聊天室消息框--> <div class="well" > <form role="form"> <div class="form-group"> <label for="name">发送消息</label> <textarea class="form-control" id="content" name="content" style="resize: none;font-family: Microsoft YaHei;" rows="3" > </textarea> </div> <div style="text-align: right"> <button type="button" class="btn btn-primary" onclick="send()"> <span class="glyphicon glyphicon-envelope"></span> 发送 </button> </div> </form> </div> <!--聊天室发送框--> </div> </div> </div> </body> </html>
2. [文件] action.php ~ 367B 下载(0) 跳至 [1] [2] [3] [4] [全屏预览]
<?php $link = mysqli_connect('localhost', 'root', '123', 'test'); mysqli_query($link, 'set names utf8'); $info= array(); header("Content-type: text/html; charset=utf-8"); $id=$_GET['maxid']; $data = mysqli_query($link, "select * from talk where id>$id"); while ($array = mysqli_fetch_assoc($data)) { $info[] = $array; }; echo json_encode($info);
3. [文件] chat.sql ~ 424B 下载(0) 跳至 [1] [2] [3] [4] [全屏预览]
DROP TABLE IF EXISTS `talk`; CREATE TABLE `talk` ( `id` int(10) unsigned NOT NULL AUTO_INCREMENT COMMENT 'id', `send` varchar(10) CHARACTER SET utf8 DEFAULT NULL COMMENT '发送者昵称', `ip` varchar(12) CHARACTER SET utf8 DEFAULT NULL, `content` varchar(500) CHARACTER SET utf8 DEFAULT NULL, `time` varchar(50) DEFAULT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=52 DEFAULT CHARSET=utf8;
4. [文件] add.php ~ 459B 下载(0) 跳至 [1] [2] [3] [4] [全屏预览]
<?php /** * @功能 将表单插入数据库 */ $content=$_POST['content']; print_r($_POST); $time= date("Y-m-d H:i:s", time(0)); $link = mysqli_connect('localhost', 'root', '123', 'test'); mysqli_query($link, 'set names utf8'); $ip = $_SERVER["REMOTE_ADDR"]; $sql="INSERT INTO talk VALUES(NULL,'匿名者','$ip','$content','$time')"; $data = mysqli_query($link,$sql); echo "$content"; if($data) echo "1"; else echo "0";

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