jqueryajax实现部分刷新
php+jQuery ajax实现的实时刷新显示数据功能示例本文实例讲述了php+jQuery ajax实现的实时刷新显示数据功能。分享给大家供大家参考,具体如下:
创建数据表:demo
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-- -- 表的结构 `demo` -- CREATE TABLE IF NOT EXISTS `demo` ( `id` int (11) NOT NULL AUTO_INCREMENT, ` name ` varchar (20) COLLATE utf8_bin NOT NULL , PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE =utf8_bin AUTO_INCREMENT=5 ; -- -- 转存表中的数据 `demo` -- INSERT INTO `demo` (`id`, ` name `) VALUES (1, '雷军' ), (2, '马化腾' ), (3, '李彦宏' ), (4, '马云' ); |
服务器文件:demo.php
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<?php $mysqli = new mysqli( "localhost" , "root" , "" , "test" ); $mysqli ->set_charset( 'utf8' ); $query = 'SELECT * FROM demo' ; $result = $mysqli ->query( $query ); $arr = $result ->fetch_all(MYSQLI_ASSOC); $info = json_encode( $arr ); echo $json = '{"success":true,"info":' . $info . '}' ; |
显示数据网页: fresh.html
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<html> <head> <meta charset= 'utf-8' > <title>hello</title> </head> <body> <script src= "http://lib.sinaapp.com/js/jquery/1.9.1/jquery-1.9.1.min.js" ></script> <script> function check(){ $.ajax({ type: "GET" , url: "./demo.php" , dataType: "json" , success: function (data){ if (data.success){ var count = data.info.length; for (i=0;i<count;i++){ var dom = "<tr align='center' id='" +data.info[i].id+ "'><td>" +data.info[i].id+ "</td><td>" +data.info[i].name+ "</td></tr>" ; var tag = '#' +data.info[i].id; if (!$(tag).length){ $( "#info" ).append(dom); } } } else { alert( 'error' ); } }, error: function (res){ alert(res.status); } }); } window.setInterval(check, 1000); //每秒执行一次 </script> <body> <li style= 'width:600px;margin:0 auto;' > <table border= '1' width= "600px" > <thead> <tr><th>id</th><th>name</th></tr> </thead> <tbody id= 'info' > <tr align= 'center' id= '111' ><td>111</td><td>测试</td></tr> </tbody> </table> </li> </body> </html> |
希望本文所述对大家PHP程序设计有所帮助。
原文链接:https://blog.csdn.net/koastal/article/details/50833798