jQuery封装的ajax+h5实现简易上传进度条

本文介绍了一个使用HTML、CSS和JavaScript实现的文件批量上传功能,包括上传进度条的展示及文件格式验证。通过Ajax实现了与服务器端的数据交互,并能够实时反馈上传进度。

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这里写图片描述
html:

<!--批量上传-->
    <input type="file" id="leading_in" class="hide">
<!--上传进度条-->
    <div class="upfile_progress hide">
        <div>
            上传进度:<progress></progress>
        </div>

        <p id="progress">0 bytes</p>
        <p id="info"></p>
    </div>

css

progress{
    background-color: #56BE64;

}
 progress::-webkit-progress-bar { background: #ccc; }
 progress::-webkit-progress-value  { background: #56BE64; }

javascript:


            // 导入文件
            $('#leading_in').change(function(){

                var exp = /.xls$|.xlsx$/;
                if(exp.exec($(this).val())==null){
                    $(this).val('');//清空
                    layer.msg('格式错误',{icon: 2});
                    return false;
                };
                var data = new FormData();
                data.append('file', $('#leading_in')[0].files[0]);
                data.append('vote_id', $('input[name="vote_id"]').val());

                var file = this.files[0]; //假设file标签没打开multiple属性,那么只取第一个文件就行了
                name = file.name;
                size = file.size;
                type = file.type;
                url = window.URL.createObjectURL(file); //获取本地文件的url,如果是图片文件,可用于预览图片

                $.ajax({
                    url: 'index.php?c=Vote&a=importExcel',
                    type: 'post',
                    data: data,
                    cache: false,
                    contentType: false,    //不可缺
                    processData: false,    //不可缺
                    crossDomain: true,
                    xhrFields: {withCredentials: true},
                    dataType:  'json',
                    beforeSend: function(){
                    },
                    xhr: function(){ //获取ajaxSettings中的xhr对象,为它的upload属性绑定progress事件的处理函数
                        myXhr = $.ajaxSettings.xhr();
                        if(myXhr.upload){ //检查upload属性是否存在
                        //绑定progress事件的回调函数
                        myXhr.upload.addEventListener('progress',progressHandlingFunction, false);
                        }
                        return myXhr; //xhr对象返回给jQuery使用
                        },
                    success: function(res) {
                        if (res.code == 200) {
                            layer.msg('上传成功', {icon :1});
                            setTimeout(function(){
                                location.reload();
                            },1000);
                        }else{
                            layer.msg(res.msg, {icon: 2});
                        }
                    },
                });
            });
            //上传进度回调函数:
            function progressHandlingFunction(e) {

                if (e.lengthComputable) {
                    $('progress').attr({value : e.loaded, max : e.total}); //更新数据到进度条
                    var percent = e.loaded/e.total*100;
                    $('#progress').html(((e.loaded/1024)/1024).toFixed(2) + "/" + ((e.total/1024)/1024).toFixed(2)+" MB. " + percent.toFixed(2) + "%");
                }
            }
非常精美的h5 进度条 |DEMO_jQuery之家-自由分享jQuery、html5、css3的插件库 <!----> .ClassyCountdownDemo { margin:0 auto 30px auto; max-width:800px; width:calc(100%); padding:30px; display:block } #countdown2 { background:#FFF } #countdown3 { background:rgb(52, 73, 94) } #countdown4 { background:#222 } #countdown5 { background:#222 } #countdown6 { background:#222 } #countdown7 { background:#222 } #countdown8 { background:#222 } #countdown9 { background:#FFF } #countdown10 { background:#3498db } jQuery炫酷图片预览Lightbox插件 A jQuery plugin designed to provide gallery view for images jQuery之家 返回下载页 Example $(document).ready(function() { $('#countdown15').ClassyCountdown({ theme: "flat-colors", end: $.now() + 10000 }); $('#countdown16').ClassyCountdown({ theme: "flat-colors-wide", end: $.now() + 10000 }); $('#countdown17').ClassyCountdown({ theme: "flat-colors-very-wide", end: $.now() + 10000 }); $('#countdown18').ClassyCountdown({ theme: "flat-colors-black", end: $.now() + 10000 }); $('#countdown1').ClassyCountdown({ theme: "white", end: $.now() + 645600 }); $('#countdown5').ClassyCountdown({ theme: "white", end: $.now() + 10000 }); $('#countdown6').ClassyCountdown({ theme: "white-wide", end: $.now() + 10000 }); $('#countdown7').ClassyCountdown({ theme: "white-very-wide", end: $.now() + 10000 }); $('#countdown8').ClassyCountdown({ theme: "white-black", end: $.now() + 10000 }); $('#countdown11').ClassyCountdown({ theme: "black", style: { secondsElement: { gauge: { fgColor: "#F00" } } }, end: $.now() + 10000 }); $('#countdown12').ClassyCountdown({ theme: "black-wide", labels: false, end: $.now() + 10000 }); $('#countdown13').ClassyCountdown({ theme: "black-very-wide", labelsOptions: { lang: { days: 'D', hours: 'H', minutes: 'M', seconds: 'S' }, style: 'font-size:0.5em; text-transform:uppercase;' }, end: $.now() + 10000 }); $('#countdown14').ClassyCountdown({ theme: "black-black", labelsOptions: { style: 'font-size:0.5em; text-transform:uppercase;' }, end: $.now() + 10000 }); $('#countdown4').ClassyCountdown({ end: $.now() + 10000, labels: true, style: { element: "", textResponsive: .5, days: { gauge: { thickness: .03, bgColor: "rgba(255,255,255,0.05)", fgColor: "#1abc9c" }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:#fff;' }, hours: { gauge: { thickness: .03, bgColor: "rgba(255,255,255,0.05)", fgColor: "#2980b9" }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:#fff;' }, minutes: { gauge: { thickness: .03, bgColor: "rgba(255,255,255,0.05)", fgColor: "#8e44ad" }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:#fff;' }, seconds: { gauge: { thickness: .03, bgColor: "rgba(255,255,255,0.05)", fgColor: "#f39c12" }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:#fff;' } }, onEndCallback: function() { console.log("Time out!"); } }); $('#countdown2').ClassyCountdown({ end: '1388468325', now: '1378441323', labels: true, style: { element: "", textResponsive: .5, days: { gauge: { thickness: .01, bgColor: "rgba(0,0,0,0.05)", fgColor: "#1abc9c" }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:#34495e;' }, hours: { gauge: { thickness: .01, bgColor: "rgba(0,0,0,0.05)", fgColor: "#2980b9" }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:#34495e;' }, minutes: { gauge: { thickness: .01, bgColor: "rgba(0,0,0,0.05)", fgColor: "#8e44ad" }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:#34495e;' }, seconds: { gauge: { thickness: .01, bgColor: "rgba(0,0,0,0.05)", fgColor: "#f39c12" }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:#34495e;' } }, onEndCallback: function() { console.log("Time out!"); } }); $('#countdown9').ClassyCountdown({ end: '1388468325', now: '1380501323', labels: true, style: { element: "", textResponsive: .5, days: { gauge: { thickness: .05, bgColor: "rgba(0,0,0,0)", fgColor: "#1abc9c", lineCap: 'round' }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:#34495e;' }, hours: { gauge: { thickness: .05, bgColor: "rgba(0,0,0,0)", fgColor: "#2980b9", lineCap: 'round' }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:#34495e;' }, minutes: { gauge: { thickness: .05, bgColor: "rgba(0,0,0,0)", fgColor: "#8e44ad", lineCap: 'round' }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:#34495e;' }, seconds: { gauge: { thickness: .05, bgColor: "rgba(0,0,0,0)", fgColor: "#f39c12", lineCap: 'round' }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:#34495e;' } }, onEndCallback: function() { console.log("Time out!"); } }); $('#countdown10').ClassyCountdown({ end: '1397468325', now: '1388471324', labels: true, labelsOptions: { lang: { days: 'D', hours: 'H', minutes: 'M', seconds: 'S' }, style: 'font-size:0.5em; text-transform:uppercase;' }, style: { element: "", textResponsive: .5, days: { gauge: { thickness: .02, bgColor: "rgba(255,255,255,0.1)", fgColor: "rgba(255,255,255,1)", lineCap: 'round' }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:rgba(255,255,255,0.7);' }, hours: { gauge: { thickness: .02, bgColor: "rgba(255,255,255,0.1)", fgColor: "rgba(255,255,255,1)", lineCap: 'round' }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:rgba(255,255,255,0.7);' }, minutes: { gauge: { thickness: .02, bgColor: "rgba(255,255,255,0.1)", fgColor: "rgba(255,255,255,1)", lineCap: 'round' }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:rgba(255,255,255,0.7);' }, seconds: { gauge: { thickness: .02, bgColor: "rgba(255,255,255,0.1)", fgColor: "rgba(255,255,255,1)", lineCap: 'round' }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:rgba(255,255,255,0.7);' }, }, onEndCallback: function() { console.log("Time out!"); } }); $('#countdown3').ClassyCountdown({ end: '1390868325', now: '1388461323', labels: true, labelsOptions: { lang: { days: 'Zile', hours: 'Ore', minutes: 'Minute', seconds: 'Secunde' }, style: 'font-size:0.5em; text-transform:uppercase;' }, style: { element: "", textResponsive: .5, days: { gauge: { thickness: .2, bgColor: "rgba(255,255,255,0.2)", fgColor: "rgb(241, 196, 15)" }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:rgba(255,255,255,0.7);' }, hours: { gauge: { thickness: .2, bgColor: "rgba(255,255,255,0.2)", fgColor: "rgb(241, 196, 15)" }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:rgba(255,255,255,0.7);' }, minutes: { gauge: { thickness: .2, bgColor: "rgba(255,255,255,0.2)", fgColor: "rgb(241, 196, 15)" }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:rgba(255,255,255,0.7);' }, seconds: { gauge: { thickness: .2, bgColor: "rgba(255,255,255,0.2)", fgColor: "rgb(241, 196, 15)" }, textCSS: 'font-family:\'Open Sans\'; font-size:25px; font-weight:300; color:rgba(255,255,255,0.7);' } }, onEndCallback: function() { console.log("Time out!"); } }); }); 如果你喜欢这个插件,那么你可能也喜欢: html5+jquery通过鼠标控制的圆形进度条 jQuery和css3旋钮控制按钮-knobKnob
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