关于ajaxupload.js实现文件上传内容

来源：互联网发布：mac rar解压软件下载编辑：程序博客网时间：2024/05/21 17:21

ajaxupload.js是基于jquery开发的一块上传文件的方法，算是轻量级的插件，比较实用；

具体的还是看代码操作:

html部分

<!DOCTYPE HTML><html><head>    <meta charset="UTF-8">    <title> 上传多张图片</title>    <style type="text/css">        .img-div{            border: 1px solid #ddd;                       line-height: 1;            margin-left: 5px;            overflow: hidden;            padding:10px;        }.file-wait-bar{display:none;padding:0 20px;}    </style></head><body><link href="/lib/font-awesome_4.4.0/css/font-awesome.min.css" rel="stylesheet"><script type="text/javascript" src="/lib/bootstrap_3.3.5/js/jquery.min.js"></script><script type="text/javascript" src="/lib/jquery_1.10/ajaxfileupload.js"></script><div class="img-div">在此处上传：<input type="file" id="hqmsRelationupfile" name="hqmsRelationupfile" />       <input type="button" class="" value="导入">       <span class="file-wait-bar"><i class="fa fa-spinner fa-spin"></i></span>       </div>          <div>    在此处下载:    <ul id="ultestid">    <!--    <li><a target="_blank" href="/resources/fileuppackage/sunnytest/epr.newfw.episodelistuvpanel.csp.txt" download="test.txt">下载某个文件</a></li>    -->    </ul>    </div>    <div> </div></body><script type="text/javascript" src="/scripts/test.js"> </script></html>

对应的test.js

function dealfileurl(filename){var p=filename.split("\\");var namestr=p[p.length-1];//$("ultestid").append("<li><b>nestr</b></li>");//下载功能var html='<li>';html+='<a target="_blank" href="/resources/fileuppackage/sunnytest/'+namestr+'" download="test.txt">';html+='下载'+namestr;html+='</a></li>';$("#ultestid").append(html);return 1}$(function () {            $(":button").click(function () {                if ($("#hqmsRelationupfile").val().length > 0) {                               var fileurl=$("#hqmsRelationupfile").val();                               $("span.file-wait-bar").show();                    ajaxFileUpload(fileurl);                }                else {                    alert("请选择图片");                }            });        });        function ajaxFileUpload(filenamerul) {            $.ajaxFileUpload            (                    {                        url: '/csp/i-hqms/web.Biz.Proxy.sunnyfileup.cls', //用于文件上传的服务器端请求地址                        type: 'post',                        data: { Id: 'upfile', name: 'filetest' }, //可以附带一些需要的参数，此参数非常严谨，写错一个引号都不行                        secureuri: false, //一般设置为false                        fileElementId: 'hqmsRelationupfile', //文件上传空间的id属性  <input type="file" id="file" name="file" />                        dataType: 'json', //返回值类型 一般设置为json                        success: function (data, status)  //服务器成功响应处理函数                        {                         dealfileurl(filenamerul);                            //alert("上传"+data.outstr+"成功");                                                    },                        complete:function(){                        $(".file-wait-bar").hide();                       },                        error: function (data, status, e)//服务器响应失败处理函数                        {                            alert("sunny 错误信息："+e);                        }                    }            )            return false;        }

ajaxupload.js

jQuery.extend({    createUploadIframe: function(id, uri){//create frame            var frameId = 'jUploadFrame' + id;            var iframeHtml = '<iframe id="' + frameId + '" name="' + frameId + '" style="position:absolute; top:-9999px; left:-9999px"';if(window.ActiveXObject){                if(typeof uri== 'boolean'){iframeHtml += ' src="' + 'javascript:false' + '"';                }                else if(typeof uri== 'string'){iframeHtml += ' src="' + uri + '"';                }}iframeHtml += ' />';jQuery(iframeHtml).appendTo(document.body);            return jQuery('#' + frameId).get(0);    },    createUploadForm: function(id, fileElementId, data){//create formvar formId = 'jUploadForm' + id;var fileId = 'jUploadFile' + id;var form = jQuery('<form  action="" method="POST" name="' + formId + '" id="' + formId + '" enctype="multipart/form-data"></form>');if(data){for(var i in data){jQuery('<input type="hidden" name="' + i + '" value="' + data[i] + '" />').appendTo(form);}}var oldElement = jQuery('#' + fileElementId);var newElement = jQuery(oldElement).clone();jQuery(oldElement).attr('id', fileId);jQuery(oldElement).before(newElement);jQuery(oldElement).appendTo(form);//set attributesjQuery(form).css('position', 'absolute');jQuery(form).css('top', '-1200px');jQuery(form).css('left', '-1200px');jQuery(form).appendTo('body');return form;    },    ajaxFileUpload: function(s) {        // TODO introduce global settings, allowing the client to modify them for all requests, not only timeout        s = jQuery.extend({}, jQuery.ajaxSettings, s);        var id = new Date().getTime()        var form = jQuery.createUploadForm(id, s.fileElementId, (typeof(s.data)=='undefined'?false:s.data));var io = jQuery.createUploadIframe(id, s.secureuri);var frameId = 'jUploadFrame' + id;var formId = 'jUploadForm' + id;        // Watch for a new set of requests        if ( s.global && ! jQuery.active++ ){jQuery.event.trigger( "ajaxStart" );}                    var requestDone = false;        // Create the request object        var xml = {}           if ( s.global )            jQuery.event.trigger("ajaxSend", [xml, s]);        // Wait for a response to come back        var uploadCallback = function(isTimeout){var io = document.getElementById(frameId);            try {if(io.contentWindow){ xml.responseText = io.contentWindow.document.body?io.contentWindow.document.body.innerHTML:null;                 xml.responseXML = io.contentWindow.document.XMLDocument?io.contentWindow.document.XMLDocument:io.contentWindow.document; }else if(io.contentDocument){ xml.responseText = io.contentDocument.document.body?io.contentDocument.document.body.innerHTML:null;                xml.responseXML = io.contentDocument.document.XMLDocument?io.contentDocument.document.XMLDocument:io.contentDocument.document;}            }catch(e){jQuery.handleError(s, xml, null, e);}            if ( xml || isTimeout == "timeout") {                requestDone = true;                var status;                try {                    status = isTimeout != "timeout" ? "success" : "error";                    // Make sure that the request was successful or notmodified                    if ( status != "error" ){                        // process the data (runs the xml through httpData regardless of callback)                        var data = jQuery.uploadHttpData( xml, s.dataType );                            // If a local callback was specified, fire it and pass it the data                        if ( s.success )                            s.success( data, status );                            // Fire the global callback                        if( s.global )                            jQuery.event.trigger( "ajaxSuccess", [xml, s] );                    } else                        jQuery.handleError(s, xml, status);                } catch(e) {                    status = "error";                    jQuery.handleError(s, xml, status, e);                }                // The request was completed                if( s.global )                    jQuery.event.trigger( "ajaxComplete", [xml, s] );                // Handle the global AJAX counter                if ( s.global && ! --jQuery.active )                    jQuery.event.trigger( "ajaxStop" );                // Process result                if ( s.complete )                    s.complete(xml, status);                jQuery(io).unbind()                setTimeout(function(){try {jQuery(io).remove();jQuery(form).remove();} catch(e) {jQuery.handleError(s, xml, null, e);}}, 100)                xml = null            }        }        // Timeout checker        if ( s.timeout > 0 ) {            setTimeout(function(){                // Check to see if the request is still happening                if( !requestDone ) uploadCallback( "timeout" );            }, s.timeout);        }        try {var form = jQuery('#' + formId);jQuery(form).attr('action', s.url);jQuery(form).attr('method', 'POST');jQuery(form).attr('target', frameId);            if(form.encoding){jQuery(form).attr('encoding', 'multipart/form-data');                  }            else{jQuery(form).attr('enctype', 'multipart/form-data');            }            jQuery(form).submit();        } catch(e) {            jQuery.handleError(s, xml, null, e);        }jQuery('#' + frameId).load(uploadCallback);        return {abort: function () {}};    },    uploadHttpData: function( r, type ) {        var data = !type;        data = type == "xml" || data ? r.responseXML : r.responseText;        // If the type is "script", eval it in global context        if ( type == "script" )            jQuery.globalEval( data );        // Get the JavaScript object, if JSON is used.        if ( type == "json" )            eval( "data = " + data );        // evaluate scripts within html        if ( type == "html" )            jQuery("<div>").html(data).evalScripts();        return data;    },    handleError: function( s, xhr, status, e )      {        // If a local callback was specified, fire it        if ( s.error ) {            s.error.call( s.context || s, xhr, status, e );        }        // Fire the global callback        if ( s.global ) {            (s.context ? jQuery(s.context) : jQuery.event).trigger( "ajaxError", [xhr, s, e] );        }    }})

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