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匿名聊天室

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Aug 10, 2016 am 08:49 AM

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<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>

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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);

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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;

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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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