java webuploader+smartUpload 实现文件批量上传

弄了好久终于把这两个组件给弄清楚了，webuploader 前端插件，smartUpload java上传文件组件。

前端代码：

<label class="form-label col-xs-4 col-sm-2">图片上传：</label>
            <input type="hidden" name="goodsUrl" id="imgUrl" value="${goods.goodsUrl}"/><!--隐藏域传递图片地址存入数据库-->
            <div class="formControls col-xs-8 col-sm-9">
                <div class="uploader-list-container">
                    <div class="queueList">
                        <div id="dndArea" class="placeholder">
                            <div id="filePicker-2"></div>
                            <p>或将照片拖到这里，单次最多可选300张</p>
                        </div>
                    </div>
                    <div class="statusBar" style="display:none;">
                        <div class="progress"> <span class="text">0%</span> <span class="percentage"></span> </div>
                        <div class="info"></div>
                        <div class="btns">
                            <div id="filePicker2"></div>
                            <div class="uploadBtn">开始上传</div>
                        </div>
                    </div>
                </div>
            </div>
        </div>

js代码：

  1 (function( $ ){
  2     // 当domReady的时候开始初始化
  3     $(function() {
  4         var $wrap = $('.uploader-list-container'),
  5 
  6             // 图片容器
  7             $queue = $( '<ul class="filelist"></ul>' )
  8                 .appendTo( $wrap.find( '.queueList' ) ),
  9 
 10             // 状态栏，包括进度和控制按钮
 11             $statusBar = $wrap.find( '.statusBar' ),
 12 
 13             // 文件总体选择信息。
 14             $info = $statusBar.find( '.info' ),
 15 
 16             // 上传按钮
 17             $upload = $wrap.find( '.uploadBtn' ),
 18 
 19             // 没选择文件之前的内容。
 20             $placeHolder = $wrap.find( '.placeholder' ),
 21 
 22             $progress = $statusBar.find( '.progress' ).hide(),
 23 
 24             // 添加的文件数量
 25             fileCount = 0,
 26 
 27             // 添加的文件总大小
 28             fileSize = 0,
 29 
 30             // 优化retina, 在retina下这个值是2
 31             ratio = window.devicePixelRatio || 1,
 32 
 33             // 缩略图大小
 34             thumbnailWidth = 110 * ratio,
 35             thumbnailHeight = 110 * ratio,
 36 
 37             // 可能有pedding, ready, uploading, confirm, done.
 38             state = 'pedding',
 39 
 40             // 所有文件的进度信息，key为file id
 41             percentages = {},
 42             // 判断浏览器是否支持图片的base64
 43             isSupportBase64 = ( function() {
 44                 var data = new Image();
 45                 var support = true;
 46                 data.onload = data.onerror = function() {
 47                     if( this.width != 1 || this.height != 1 ) {
 48                         support = false;
 49                     }
 50                 }
 51                 data.src = "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==";
 52                 return support;
 53             } )(),
 54 
 55             // 检测是否已经安装flash，检测flash的版本
 56             flashVersion = ( function() {
 57                 var version;
 58 
 59                 try {
 60                     version = navigator.plugins[ 'Shockwave Flash' ];
 61                     version = version.description;
 62                 } catch ( ex ) {
 63                     try {
 64                         version = new ActiveXObject('ShockwaveFlash.ShockwaveFlash')
 65                                 .GetVariable('$version');
 66                     } catch ( ex2 ) {
 67                         version = '0.0';
 68                     }
 69                 }
 70                 version = version.match( /\d+/g );
 71                 return parseFloat( version[ 0 ] + '.' + version[ 1 ], 10 );
 72             } )(),
 73 
 74             supportTransition = (function(){
 75                 var s = document.createElement('p').style,
 76                     r = 'transition' in s ||
 77                             'WebkitTransition' in s ||
 78                             'MozTransition' in s ||
 79                             'msTransition' in s ||
 80                             'OTransition' in s;
 81                 s = null;
 82                 return r;
 83             })(),
 84 
 85             // WebUploader实例
 86             uploader;
 87 
 88         if ( !WebUploader.Uploader.support('flash') && WebUploader.browser.ie ) {
 89 
 90             // flash 安装了但是版本过低。
 91             if (flashVersion) {
 92                 (function(container) {
 93                     window['expressinstallcallback'] = function( state ) {
 94                         switch(state) {
 95                             case 'Download.Cancelled':
 96                                 alert('您取消了更新！')
 97                                 break;
 98 
 99                             case 'Download.Failed':
100                                 alert('安装失败')
101                                 break;
102 
103                             default:
104                                 alert('安装已成功，请刷新！');
105                                 break;
106                         }
107                         delete window['expressinstallcallback'];
108                     };
109 
110                     var swf = 'expressInstall.swf';
111                     // insert flash object
112                     var html = '<object type="application/' +
113                             'x-shockwave-flash" data="' +  swf + '" ';
114 
115                     if (WebUploader.browser.ie) {
116                         html += 'classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" ';
117                     }
118 
119                     html += 'width="100%" height="100%" style="outline:0">'  +
120                         '<param name="movie" value="' + swf + '" />' +
121                         '<param name="wmode" value="transparent" />' +
122                         '<param name="allowscriptaccess" value="always" />' +
123                     '</object>';
124 
125                     container.html(html);
126 
127                 })($wrap);
128 
129             // 压根就没有安转。
130             } else {
131                 $wrap.html('<a href="http://www.adobe.com/go/getflashplayer" target="_blank" border="0"><img alt="get flash player" src="http://www.adobe.com/macromedia/style_guide/images/160x41_Get_Flash_Player.jpg" /></a>');
132             }
133 
134             return;
135         } else if (!WebUploader.Uploader.support()) {
136             alert( 'Web Uploader 不支持您的浏览器！');
137             return;
138         }
139 
140         // 实例化
141         uploader = WebUploader.create({
142             pick: {
143                 id: '#filePicker-2',
144                 label: '点击选择图片'
145             },
146             formData: {
147                 uid: 123
148             },
149             dnd: '#dndArea',
150             paste: '#uploader',
151             swf: 'lib/webuploader/0.1.5/Uploader.swf',
152             chunked: false,
153             chunkSize: 512 * 1024,
154             server: '../FileUpload.do',
155             // runtimeOrder: 'flash',
156 
157             // accept: {
158             //     title: 'Images',
159             //     extensions: 'gif,jpg,jpeg,bmp,png',
160             //     mimeTypes: 'image/*'
161             // },
162 
163             // 禁掉全局的拖拽功能。这样不会出现图片拖进页面的时候，把图片打开。
164             disableGlobalDnd: true,
165             fileNumLimit: 300,
166             fileSizeLimit: 200 * 1024 * 1024,    // 200 M
167             fileSingleSizeLimit: 50 * 1024 * 1024    // 50 M
168         });
169 
170         // 拖拽时不接受 js, txt 文件。
171         uploader.on( 'dndAccept', function( items ) {
172             var denied = false,
173                 len = items.length,
174                 i = 0,
175                 // 修改js类型
176                 unAllowed = 'text/plain;application/javascript ';
177 
178             for ( ; i < len; i++ ) {
179                 // 如果在列表里面
180                 if ( ~unAllowed.indexOf( items[ i ].type ) ) {
181                     denied = true;
182                     break;
183                 }
184             }
185 
186             return !denied;
187         });
188 
189         uploader.on('dialogOpen', function() {
190             console.log('here');
191         });
192 
193         // uploader.on('filesQueued', function() {
194         //     uploader.sort(function( a, b ) {
195         //         if ( a.name < b.name )
196         //           return -1;
197         //         if ( a.name > b.name )
198         //           return 1;
199         //         return 0;
200         //     });
201         // });
202 
203         // 添加“添加文件”的按钮，
204         uploader.addButton({
205             id: '#filePicker2',
206             label: '继续添加'
207         });
208 
209         uploader.on('ready', function() {
210             window.uploader = uploader;
211         });
212 
213         // 当有文件添加进来时执行，负责view的创建
214         function addFile( file ) {
215             var $li = $( '<li id="' + file.id + '">' +
216                     '<p class="title">' + file.name + '</p>' +
217                     '<p class="imgWrap"></p>'+
218                     '<p class="progress"><span></span></p>' +
219                     '</li>' ),
220 
221                 $btns = $('<div class="file-panel">' +
222                     '<span class="cancel">删除</span>' +
223                     '<span class="rotateRight">向右旋转</span>' +
224                     '<span class="rotateLeft">向左旋转</span></div>').appendTo( $li ),
225                 $prgress = $li.find('p.progress span'),
226                 $wrap = $li.find( 'p.imgWrap' ),
227                 $info = $('<p class="error"></p>'),
228 
229                 showError = function( code ) {
230                     switch( code ) {
231                         case 'exceed_size':
232                             text = '文件大小超出';
233                             break;
234 
235                         case 'interrupt':
236                             text = '上传暂停';
237                             break;
238 
239                         default:
240                             text = '上传失败，请重试';
241                             break;
242                     }
243 
244                     $info.text( text ).appendTo( $li );
245                 };
246 
247             if ( file.getStatus() === 'invalid' ) {
248                 showError( file.statusText );
249             } else {
250                 // @todo lazyload
251                 $wrap.text( '预览中' );
252                 uploader.makeThumb( file, function( error, src ) {
253                     var img;
254 
255                     if ( error ) {
256                         $wrap.text( '不能预览' );
257                         return;
258                     }
259 
260                     if( isSupportBase64 ) {
261                         img = $('<img src="'+src+'">');
262                         $wrap.empty().append( img );
263                     } else {
264                         $.ajax('lib/webuploader/0.1.5/server/preview.php', {
265                             method: 'POST',
266                             data: src,
267                             dataType:'json'
268                         }).done(function( response ) {
269                             if (response.result) {
270                                 img = $('<img src="'+response.result+'">');
271                                 $wrap.empty().append( img );
272                             } else {
273                                 $wrap.text("预览出错");
274                             }
275                         });
276                     }
277                 }, thumbnailWidth, thumbnailHeight );
278 
279                 percentages[ file.id ] = [ file.size, 0 ];
280                 file.rotation = 0;
281             }
282 
283             file.on('statuschange', function( cur, prev ) {
284                 if ( prev === 'progress' ) {
285                     $prgress.hide().width(0);
286                 } else if ( prev === 'queued' ) {
287                     $li.off( 'mouseenter mouseleave' );
288                     $btns.remove();
289                 }
290 
291                 // 成功
292                 if ( cur === 'error' || cur === 'invalid' ) {
293                     console.log( file.statusText );
294                     showError( file.statusText );
295                     percentages[ file.id ][ 1 ] = 1;
296                 } else if ( cur === 'interrupt' ) {
297                     showError( 'interrupt' );
298                 } else if ( cur === 'queued' ) {
299                     percentages[ file.id ][ 1 ] = 0;
300                 } else if ( cur === 'progress' ) {
301                     $info.remove();
302                     $prgress.css('display', 'block');
303                 } else if ( cur === 'complete' ) {
304                     $li.append( '<span class="success"></span>' );
305                 }
306 
307                 $li.removeClass( 'state-' + prev ).addClass( 'state-' + cur );
308             });
309 
310             $li.on( 'mouseenter', function() {
311                 $btns.stop().animate({height: 30});
312             });
313 
314             $li.on( 'mouseleave', function() {
315                 $btns.stop().animate({height: 0});
316             });
317 
318             $btns.on( 'click', 'span', function() {
319                 var index = $(this).index(),
320                     deg;
321 
322                 switch ( index ) {
323                     case 0:
324                         uploader.removeFile( file );
325                         return;
326 
327                     case 1:
328                         file.rotation += 90;
329                         break;
330 
331                     case 2:
332                         file.rotation -= 90;
333                         break;
334                 }
335 
336                 if ( supportTransition ) {
337                     deg = 'rotate(' + file.rotation + 'deg)';
338                     $wrap.css({
339                         '-webkit-transform': deg,
340                         '-mos-transform': deg,
341                         '-o-transform': deg,
342                         'transform': deg
343                     });
344                 } else {
345                     $wrap.css( 'filter', 'progid:DXImageTransform.Microsoft.BasicImage(rotation='+ (~~((file.rotation/90)%4 + 4)%4) +')');
346                     // use jquery animate to rotation
347                     // $({
348                     //     rotation: rotation
349                     // }).animate({
350                     //     rotation: file.rotation
351                     // }, {
352                     //     easing: 'linear',
353                     //     step: function( now ) {
354                     //         now = now * Math.PI / 180;
355 
356                     //         var cos = Math.cos( now ),
357                     //             sin = Math.sin( now );
358 
359                     //         $wrap.css( 'filter', "progid:DXImageTransform.Microsoft.Matrix(M11=" + cos + ",M12=" + (-sin) + ",M21=" + sin + ",M22=" + cos + ",SizingMethod='auto expand')");
360                     //     }
361                     // });
362                 }
363 
364 
365             });
366 
367             $li.appendTo( $queue );
368         }
369 
370         // 负责view的销毁
371         function removeFile( file ) {
372             var $li = $('#'+file.id);
373 
374             delete percentages[ file.id ];
375             updateTotalProgress();
376             $li.off().find('.file-panel').off().end().remove();
377         }
378 
379         function updateTotalProgress() {
380             var loaded = 0,
381                 total = 0,
382                 spans = $progress.children(),
383                 percent;
384 
385             $.each( percentages, function( k, v ) {
386                 total += v[ 0 ];
387                 loaded += v[ 0 ] * v[ 1 ];
388             } );
389 
390             percent = total ? loaded / total : 0;
391 
392 
393             spans.eq( 0 ).text( Math.round( percent * 100 ) + '%' );
394             spans.eq( 1 ).css( 'width', Math.round( percent * 100 ) + '%' );
395             updateStatus();
396         }
397 
398         function updateStatus() {
399             var text = '', stats;
400 
401             if ( state === 'ready' ) {
402                 text = '选中' + fileCount + '张图片，共' +
403                         WebUploader.formatSize( fileSize ) + '。';
404             } else if ( state === 'confirm' ) {
405                 stats = uploader.getStats();
406                 if ( stats.uploadFailNum ) {
407                     text = '已成功上传' + stats.successNum+ '张照片至XX相册，'+
408                         stats.uploadFailNum + '张照片上传失败，<a class="retry" href="#">重新上传</a>失败图片或<a class="ignore" href="#">忽略</a>'
409                 }
410 
411             } else {
412                 stats = uploader.getStats();
413                 text = '共' + fileCount + '张（' +
414                         WebUploader.formatSize( fileSize )  +
415                         '），已上传' + stats.successNum + '张';
416 
417                 if ( stats.uploadFailNum ) {
418                     text += '，失败' + stats.uploadFailNum + '张';
419                 }
420             }
421 
422             $info.html( text );
423         }
424 
425         function setState( val ) {
426             var file, stats;
427 
428             if ( val === state ) {
429                 return;
430             }
431 
432             $upload.removeClass( 'state-' + state );
433             $upload.addClass( 'state-' + val );
434             state = val;
435 
436             switch ( state ) {
437                 case 'pedding':
438                     $placeHolder.removeClass( 'element-invisible' );
439                     $queue.hide();
440                     $statusBar.addClass( 'element-invisible' );
441                     uploader.refresh();
442                     break;
443 
444                 case 'ready':
445                     $placeHolder.addClass( 'element-invisible' );
446                     $( '#filePicker2' ).removeClass( 'element-invisible');
447                     $queue.show();
448                     $statusBar.removeClass('element-invisible');
449                     uploader.refresh();
450                     break;
451 
452                 case 'uploading':
453                     $( '#filePicker2' ).addClass( 'element-invisible' );
454                     $progress.show();
455                     $upload.text( '暂停上传' );
456                     break;
457 
458                 case 'paused':
459                     $progress.show();
460                     $upload.text( '继续上传' );
461                     break;
462 
463                 case 'confirm':
464                     $progress.hide();
465                     $( '#filePicker2' ).removeClass( 'element-invisible' );
466                     $upload.text( '开始上传' );
467 
468                     stats = uploader.getStats();
469                     if ( stats.successNum && !stats.uploadFailNum ) {
470                         setState( 'finish' );
471                         return;
472                     }
473                     break;
474                 case 'finish':
475                     stats = uploader.getStats();
476                     if ( stats.successNum ) {
477                         alert( '上传成功' );
478                     } else {
479                         // 没有成功的图片，重设
480                         state = 'done';
481                         location.reload();
482                     }
483                     break;
484             }
485 
486             updateStatus();
487         }
488 
489         uploader.onUploadProgress = function( file, percentage ) {
490             var $li = $('#'+file.id),
491                 $percent = $li.find('.progress span');
492 
493             $percent.css( 'width', percentage * 100 + '%' );
494             percentages[ file.id ][ 1 ] = percentage;
495             updateTotalProgress();
496         };
497 
498         uploader.onFileQueued = function( file ) {
499             fileCount++;
500             fileSize += file.size;
501 
502             if ( fileCount === 1 ) {
503                 $placeHolder.addClass( 'element-invisible' );
504                 $statusBar.show();
505             }
506 
507             addFile( file );
508             setState( 'ready' );
509             updateTotalProgress();
510         };
511 
512         uploader.onFileDequeued = function( file ) {
513             fileCount--;
514             fileSize -= file.size;
515 
516             if ( !fileCount ) {
517                 setState( 'pedding' );
518             }
519 
520             removeFile( file );
521             updateTotalProgress();
522 
523         };
524         
525         //在上传完成之前客户端询问服务器上传是否成功
526         uploader.on( 'uploadAccept', function( file, response) {
527             var obj = eval(response);
528             //alert(obj.state+"--"+obj.filePath);
529             if(obj.state=="NO"){
530                 return false;
531             }
532             $("#imgUrl").val(obj.filePath);
533             //alert($("#imgUrl").val());
534         });
535         uploader.on( 'all', function( type ) {
536             var stats;
537             switch( type ) {
538                 case 'uploadFinished':
539                     setState( 'confirm' );
540                     break;
541 
542                 case 'startUpload':
543                     setState( 'uploading' );
544                     break;
545 
546                 case 'stopUpload':
547                     setState( 'paused' );
548                     break;
549 
550             }
551         });
552 
553         uploader.onError = function( code ) {
554             alert( 'Eroor: ' + code );
555         };
556 
557         $upload.on('click', function() {
558             if ( $(this).hasClass( 'disabled' ) ) {
559                 return false;
560             }
561 
562             if ( state === 'ready' ) {
563                 uploader.upload();
564             } else if ( state === 'paused' ) {
565                 uploader.upload();
566             } else if ( state === 'uploading' ) {
567                 uploader.stop();
568             }
569         });
570 
571         $info.on( 'click', '.retry', function() {
572             uploader.retry();
573         } );
574 
575         $info.on( 'click', '.ignore', function() {
576             alert( 'todo' );
577         } );
578 
579         $upload.addClass( 'state-' + state );
580         updateTotalProgress();
581     });
582 
583 })( jQuery );

upload.js

后台实现：

 1 protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
 2         System.out.println("开始上传");
 3         resp.setCharacterEncoding("utf-8");
 4         //设置上传文件保存的路径
 5         String filePath = req.getSession().getServletContext().getRealPath("/")+"images";
 6         //System.out.println(filePath);
 7         File file = new File(filePath);
 8         if(!file.exists()){
 9             file.mkdirs();
10         }
11         
12         SmartUpload su = new SmartUpload();
13         //初始化smartupload
14         su.initialize(getServletConfig(), req, resp);
15         //设置文件的大小
16         su.setMaxFileSize(1024*1024*10);
17         //设置所有文件的大小
18         su.setTotalMaxFileSize(1024*1024*100);
19         //设置允许上传的文件类型
20         su.setAllowedFilesList("jpg,png,gif");
21         //设置禁止上传的文件类型
22         JSONObject json = new JSONObject();
23         try {
24             su.setDeniedFilesList("rar,zip,jsp,js");
25             su.upload();
26             int count = su.save(filePath);
27             String filepath = "../images/"+ su.getFiles().getFile(0).getFileName();
28             if(count>0){
29                 json.put("state", "OK");
30                 json.put("filePath", filepath);
31             }
32             else{
33                 json.put("state", "NO");
34             }
35             //System.out.println(json.toString());
36             resp.getWriter().write(json.toString());
37             //System.out.println("上传成功"+count+"个文件！");
38         } catch (Exception e) {
39             e.printStackTrace();
40         }
41     }
42 }

至此上传文件到服务器指定目录并返回文件地址赋给隐藏input 的value，最后提交表单存入数据库。功能已基本实现，后续扩展自己研究。

posted @ 2017-11-23 11:06 cx_davis 阅读(1389) 评论(1) 编辑收藏举报

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java webuploader+smartUpload 实现文件批量上传

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