jQuery.Form上传文件操作
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2022-06-14 08:36:00
建立test文件夹
php代码:
建立test文件夹
php代码:
<?php //var_dump($_files['file']);exit; if(isset($_get['option']) && $_get['option']=='delete'){ @file_put_contents(dirname(__file__)."/------------0.txt", $_get['path']."\r\n",file_append); unlink($_get['path']); $rs[] = array( 'success'=>true, 'info'=>'ok' ); if(file_exists($_get['path'])){ $rs[]['success']=false; $rs[]['info']='未删除'; } die(json_encode($rs)); } if ((($_files["file"]["type"] == "image/gif") || ($_files["file"]["type"] == "image/jpeg") || ($_files["file"]["type"] == "image/png") || ($_files["file"]["type"] == "image/pjpeg")) && ($_files["file"]["size"] < (1024*1024))) { if ($_files["file"]["error"] > 0) { echo "return code: " . $_files["file"]["error"] . "<br />"; } else { if (file_exists("test/" . $_files["file"]["name"])) { $fn = $_files["file"]["name"]; } else { $imgurl = substr($_files["file"]["name"], strpos($_files["file"]["name"], '.')); $imgurl = date("ymdhis",time()).$imgurl; move_uploaded_file($_files["file"]["tmp_name"],"test/" . $imgurl); $fn = "test/" . $imgurl; } } $return_str[] = array( 'guid'=>date('his',time()), 'path'=>'test/', 'filename'=>$fn, 'success'=>true ); } else { $return_str[] = array( 'guid'=>date('his',time()), 'path'=>'test/', 'filename'=>$_files["file"]["name"], 'success'=>false, 'error'=>$_files["file"]["error"] ); } echo json_encode($return_str); ?>
html代码:
<!doctype html> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="content-type" content="multipart/form-data; charset=utf-8" /> <title>文件上传</title> <style type="text/css"> .btn { position: relative; background-color: blue; width: 80px; text-align: center; font-size: 12px; color: white; line-height: 30px; height: 30px; border-radius: 4px; } .btn:hover { cursor: pointer; } .btn input { opacity: 0; filter: alpha(opacity=0); position: absolute; top: 0px; left: 0px; line-height: 30px; height: 30px; width: 80px; } #filelsit li span { margin-left: 10px; color: red; } #filelsit { font-size: 12px; list-style-type: none; } </style> </head> <body> <div class="btn"> <span>添加附件</span> <!--这里注意:file 标签必须具有name属性,由于没有加name属性,文件上传不到服务到哪--> <input type="file" id="filename" name="file" /> </div> <ul id="filelsit" style="border:1px solid red;"> </ul> <!--引入jquery类库--> <script type="text/javascript" src="js/jquery.js"></script> <!--引入jquery.form插件--> <script type="text/javascript" src="js/jquery.form.js"></script> <script type="text/javascript"> jquery(function () { var option = { type: 'post', datatype: 'json', //数据格式为json resetform: true, beforesubmit: showrequest,//提交前事件 uploadprogress: uploadprogress,//正在提交的时间 success: showresponse//上传完毕的事件 } jquery('#filename').wrap( '<form method="post" action="test.php" id="myform2" enctype="multipart/form-data"></form>'); jquery('#filename').change(function () { $('#myform2').ajaxsubmit(option); }); }); //删除文件 var deletefile = function (path, guid) { console.log(path+'/'+guid); jquery.getjson('test.php?option=delete', { path: path }, function (reslut) { console.log(path+'/'+guid+''+reslut[0].info); if (reslut[0].success) {//删除成功 jquery('#' + guid).remove(); console.log('删除成功'); } else {//删除失败 alert(reslut[0].info); } }); console.log('end'); } //上传中 var uploadprogress = function (event, position, total, percentcomplete) { jquery('.btn span').text('上传中...'); } //开始提交 function showrequest(formdata, jqform, options) { jquery('.btn span').text('开始上传..'); var querystring = $.param(formdata); } //上传完成 var showresponse = function (responsetext, statustext, xhr, $form) { console.log(responsetext); if (responsetext[0].success) {//成功之后返回文件地址、文件名称等信息 拼接呈现到html里面。 var str = '<li id="' + responsetext[0].guid + '"><a href="' + responsetext[0].filename + '" target="_blank">' + responsetext[0].filename + '</a><span onclick="deletefile(\'' + responsetext[0].filename + '\',\'' + responsetext[0].guid + '\')" >删除</span></li>'; jquery('#filelsit').append(str); } jquery('.btn span').text('上传完成'); jquery('.btn span').text('添加附件'); } </script> </body> </html>
以上所述是小编给大家介绍的jquery.form上传文件操作,希望对大家有所帮助