ajaxfileupload带参数上传文件
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使用Jquery Ajax File Uploader这个控件上传 官方网站:http://www.phpletter.com/DOWNLOAD/ 这个控件有个缺点,就是不能传递自定义参数。通过更改ajaxfileupload.js文件可以解决此问题。 主要更改点32行,增加42行的内容,更改56行的内容 32/////createUploadForm: function(id,fileElementId) 42/////增加文本参数的支持 if (data) { for (var i in data) { $('<input type="hidden" name="' + i + '" value="' + data[i] + '" />').appendTo(form); } } 56///// var form = jQuery.createUploadForm(id,s.fileElementId,s.data);
以下是更改后的文件:
jQuery.extend({ createUploadIframe: function(id,uri) { //create frame var frameId = 'jUploadFrame' + id;
if(window.ActiveXObject) { var io = document.createElement('<iframe id="' + frameId + '" name="' + frameId + '" />'); if(typeof uri== 'boolean'){ io.src='#'" } else if(typeof uri== 'string'){ io.src = uri; } } else { var io = document.createElement('iframe'); io.id = frameId; io.name = frameId; } io.style.position = 'absolute'; io.style.top = '-1000px'; io.style.left = '-1000px';
document.body.appendChild(io);
return io }, createUploadForm: function(id,fileElementId,data) { //create form var formId = 'jUploadForm' + id; var fileId = 'jUploadFile' + id; var form = $('<form action="" method="POST" name="' + formId + '" id="' + formId + '" enctype="multipart/form-data"></form>'); var oldElement = $('#' + fileElementId); var newElement = $(oldElement).clone(); $(oldElement).attr('id',fileId); $(oldElement).before(newElement); $(oldElement).appendTo(form);
//增加文本参数的支持 if (data) { for (var i in data) { $('<input type="hidden" name="' + i + '" value="' + data[i] + '" />').appendTo(form); } }
//set attributes $(form).css('position','absolute'); $(form).css('top','-1200px'); $(form).css('left','-1200px'); $(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.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",s] ); } else jQuery.handleError(s,status); } catch(e) { status = "error"; jQuery.handleError(s,status,e); }
// The request was completed if( s.global ) jQuery.event.trigger( "ajaxComplete",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 { $(io).remove(); $(form).remove();
} catch(e) { jQuery.handleError(s,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 io = $('#' + frameId); var form = $('#' + formId); $(form).attr('action',s.url); $(form).attr('method','POST'); $(form).attr('target',frameId); if(form.encoding) { form.encoding = 'multipart/form-data'; } else { form.enctype = 'multipart/form-data'; } $(form).submit();
} catch(e) { jQuery.handleError(s,e); } if(window.attachEvent){ document.getElementById(frameId).attachEvent(' uploadCallback); } else{ document.getElementById(frameId).addEventListener('load',uploadCallback,false); } return {abort: function () {}};
},
uploadHttpData: function( r,type ) { var data = !type; data = type == "xml" || data ? r.responseXML : r.responseText; // If the type is "script",eval it in global context if ( type == "script" ) jQuery.globalEval( data ); // Get the JavaScript object,if JSON is used. if ( type == "json" ) eval( "data = " + data ); // evaluate scripts within html if ( type == "html" ) jQuery("<div>").html(data).evalScripts(); //alert($('param',data).each(function(){alert($(this).attr('value'));})); return data; } })
使用方法如下:
$.ajaxFileUpload({ url: '/ajax/mine/uploadLogo', secureuri:false, fileElementId:'input_logo', dataType: 'json', data: {//加入的文本参数 "logoPath": "param1", "logoName": "param2" }, success: function(data) {
}, error: function() { showError("上传失败,请检查文件是否符合格式要求。"); } });
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