在使用ajaxForm方法之前,首先需要安装form.js的插件,网上有;
一、首先说用法,ajaxForm可以接收0或1个参数,该参数可以是一个变量、一个对象或回调函数,这个对象主要有以下参数:
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var object= { url:url, //form提交数据的地址 type:type, //form提交的方式(method:post/get) target:target, //服务器返回的响应数据显示的元素(Id)号 beforeSerialize: function (){} //序列化提交数据之前的回调函数 beforeSubmit: function (){}, //提交前执行的回调函数 success: function (){}, //提交成功后执行的回调函数 error: function (){}, //提交失败执行的函数 dataType:null, //服务器返回数据类型 clearForm:true, //提交成功后是否清空表单中的字段值 restForm:true, //提交成功后是否重置表单中的字段值,即恢复到页面加载时的状态 timeout:6000 //设置请求时间,超过该时间后,自动退出请求,单位(毫秒)。 } ajaxForm js的code $( function (){ $( "form" ).ajaxForm(object); }) |
实例具体代码code
htmlcode
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" > <html xmlns= "http://www.w3.org/1999/xhtml" > <head> <meta http-equiv= "X-UA-Compatible" content= "IE=7" /> <meta http-equiv= "Content-Type" content= "text/html; charset=utf-8" /> <meta name= "ROBOTS" content= "NOODP" > <title>PHP+Ajax异步带进度条上传文件实例_php</title> <meta http-equiv= "X-UA-Compatible" content= "IE=EDGE" /> <meta name= "keywords" content= "php,ajax异步上传文件,ajax,异步加载,进度条,php,ajax上传进度条" /> <meta name= "description" content= "这篇文章主要介绍了PHP+Ajax异步带进度条上传文件实例代码。" /> <!--默认的进度条样式文件 添加一个带有 class .progress 的 <div>。 接着,在上面的 <div> 内,添加一个带有 class .progress-bar 的空的 <div>。 添加一个带有百分比表示的宽度的 style 属性,例如 style= "60%" ; 表示进度条在 60% 的位置 --> <link rel= "stylesheet" href= "public/css/bootstrap.min.css" rel= "external nofollow" > <script src= "public/js/jquery.min.js" ></script> <script src= "public/js/jquery.form.js" ></script> <!--ajaxForm 提交form表单数据无刷新处理数据--> </head> <body> <div class = "uk-container uk-container-center" > <div class = "pk-system-messages" ></div> <h1 class = "uk-h2 uk-text-center" style= "margin-top:-100px;" >文件上传</h1> <div class = "pk-system-messages" ></div> <div class = "container-main" > <h1>文件上传</h1> <p>这里只是一个ajax+php+ajaxForm上传文件word文档例子</p> <form id= 'myupload' action= 'upload.php' method= 'post' enctype= 'multipart/form-data' > <label for = "file" >选择上传文件名:</label> <input type= "file" name= "mypic" id= "file" ><br> <input type= "submit" name= "upload" class = "btn btn-success" value= "upload" > <input type= 'text' name= "list" value= "555" /> </form> <div class = "progress" > <div class = "progress-bar progress-bar-success progress-bar-striped" role= "progressbar" aria-valuenow= "45" aria-valuemin= "0" aria-valuemax= "100" style= "width: 0%;color:red;" > <span class = "sr-only" >10% Complete</span> </div> </div> <div class = "files" ></div> <div class = "showimg" ></div> </div> </div> </body> <script type= "text/javascript" > $( function () { $( "#myupload" ).ajaxForm({ dataType: 'json' , beforeSend: function (){ $( ".progress" ).show(); }, uploadProgress: function (event,position,total,percentComplete){ var percentVal = percentComplete + '%' ; $( ".progress-bar" ).width(percentComplete + '%' ); $( ".progress-bar" ).html(percentVal); $( ".sr-only" ).html(percentComplete + '%' ); }, success: function (data){ $( ".progress" ).hide(); if (data.error == "empty_name" ){ alert( "文件上传非法,上传失败!" ); exit (); }; if (data.error == "large" ){ alert( "图片上传不能大于2M,上传失败!" ); exit (); }; if (data.error == "format" ){ alert( "图片格式错误,上传失败" ); exit (); }; //$(".files").html("<b>"+data.name+"("+data.size+"k)</b> <span class='delimg' rel='"+data.pic+"'>删除</span>"); $( ".files" ).html( "文件名: " +data.name+ "<span class='delimg' rel='" +data.pic+ "'> del </span>大小:" +data.size); var img = "files/" +data.pic; $( ".showimg" ).html( "<img src='" +img+ "'>" ); alert( "上传成功!" ); }, error: function (){ alert( "上传失败" ); } }); $( ".progress" ).hide(); }); </script> </html> |
php上传上传类upload.class.php文件
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<?php date_default_timezone_set( "PRC" ); //设置时间区域 //上传类 class upload{ protected $file_path = "files" ; //当前files存储文件夹 protected $file_size = 5120000; //5M 用户上传 /** *检测文件是否为空 */ public function check_file( $get_file ) { if ( empty ( $get_file )) { $type = "check_file" ; $arr = array ( 'error' => 'empty_name' , 'type' => $type ); echo json_encode( $arr ); exit (); } return true; } /** *检测文件类型 */ public function check_type( $get_type ) { if (( $get_type == ".docx" ) || ( $get_type == ".doc" )) { //这里只是判断上传word文档可以自己添加 } else { $type = "check_type" ; $arr = array ( 'error' => 'format' , 'type' => $type ); echo json_encode( $arr ); exit (); } return true; } /** *检测文件大小 */ public function check_size( $get_file ) { if ( $get_file != "" ) { if ( $get_file > $this ->file_size ) { $arr = array ( 'error' => 'large' ); echo json_encode( $arr ); exit (); } } else { return false; exit (); } return true; } /** *文件保存 */ public function save_file( $file_type , $file_tmp_name ) { $rand = rand(1000, 9999); $pics = date ( 'YmdHis' ) . $rand . $file_type ; $path = $this ->file_path. "/" . $pics ; $result = move_uploaded_file( $file_tmp_name , $path ); if ( $result ){ return $pics ; } else { return false; exit (); } } } ?> |
ajax提交php处理文件upload.php
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<?php include ( "upload.class.php" ); $up_obj = new upload(); //获取上传文件名 $get_fileName = $_FILES [ 'mypic' ][ 'name' ]; $get_fileSize = $_FILES [ 'mypic' ][ 'size' ]; $get_TmpFiles = $_FILES [ 'mypic' ][ 'tmp_name' ]; $get_fileType = strstr ( $get_fileName , '.' ); $check_result = $up_obj ->check_file( $get_fileName ); if ( $check_result ){ $result_type = $up_obj ->check_type( $get_fileType ); //检查文件类型 if ( $result_type ){ $result_size = $up_obj ->check_size( $get_fileSize ); //检查文件大小 if ( $result_size ){ $pics = $up_obj ->save_file( $get_fileType , $get_TmpFiles ); //文件上传保存 $size = round ( $get_fileSize /1024,2); $arr = array ( 'name' => $get_fileName , 'pic' => $pics , 'size' => $size , 'error' => 2, 'list' => $_POST [ 'list' ] ); if ( $pics ){ //检查文件上传状态 echo json_encode( $arr ); } } } } ?> |
总结
以上所述是小编给大家介绍的PHP+AjaxForm异步带进度条上传文件实例代码,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持!
原文链接:http://www.cnblogs.com/sztx/p/7350949.html