springMVC+WebUploader实现多图片上传

1.webuploader的文件下载

链接：http://pan.baidu.com/s/1jIdty30 密码：un47

2.spring的静态资源映射

<!-- 静态资源映射 --><mvc:resources mapping="/static/**" location="/WEB-INF/static/" /><mvc:resources mapping="/umeditor1.2.3/**" location="/umeditor1.2.3/" /><mvc:resources mapping="/webuploader-0.1.5/**" location="/webuploader-0.1.5/" /><mvc:resources mapping="/upload/**" location="/upload/" />

3.上传文件的工具类WebuploaderUtil.JAVA

/** *Project Name: QDLIMAP *File Name:    WebuploaderUtil.java *Package Name: com.ltmap.platform.cms.util *Date:         2017年4月13日 下午6:30:45 *Copyright (c) 2017,[e-mail] All Rights Reserved.*/package com.ltmap.platform.cms.util;import java.io.File;import java.text.SimpleDateFormat;import java.util.Date;import javax.servlet.http.HttpServletRequest;import org.springframework.web.multipart.MultipartFile;/** *Title:      WebuploaderUtil<br/> *Description: *@Company:   励图高科<br/> *@author:    刘云生 *@version:   v1.0 *@since:     JDK 1.8.0_40 *@Date:      2017年4月13日 下午6:30:45 <br/>*/public class WebuploaderUtil {private String allowSuffix = "jpg,png,gif,jpeg";//允许文件格式private long allowSize = 2L;//允许文件大小private String fileName;private String[] fileNames;public String getAllowSuffix() {return allowSuffix;}public void setAllowSuffix(String allowSuffix) {this.allowSuffix = allowSuffix;}public long getAllowSize() {return allowSize*1024*1024;}public void setAllowSize(long allowSize) {this.allowSize = allowSize;}public String getFileName() {return fileName;}public void setFileName(String fileName) {this.fileName = fileName;}public String[] getFileNames() {return fileNames;}public void setFileNames(String[] fileNames) {this.fileNames = fileNames;}/** *  * @Title:       getFileNameNew   * @Description: TODO   * @param:       @return * @return:      String * @author:      刘云生 * @Date:        2017年4月14日 上午10:17:35    * @throws */private String getFileNameNew(){SimpleDateFormat fmt = new SimpleDateFormat("yyyyMMddHHmmssSSS");return fmt.format(new Date());}/** *  * @Title:       uploads   * @Description: TODO   * @param:       @param files * @param:       @param destDir * @param:       @param request * @param:       @throws Exception * @return:      void * @author:      刘云生 * @Date:        2017年4月14日 上午10:17:14    * @throws */public void uploads(MultipartFile[] files, String destDir,HttpServletRequest request) throws Exception {String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path;try {fileNames = new String[files.length];int index = 0;for (MultipartFile file : files) {String suffix = file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf(".")+1);int length = getAllowSuffix().indexOf(suffix);if(length == -1){throw new Exception("请上传允许格式的文件");}if(file.getSize() > getAllowSize()){throw new Exception("您上传的文件大小已经超出范围");}String realPath = request.getSession().getServletContext().getRealPath("/");File destFile = new File(realPath+destDir);if(!destFile.exists()){destFile.mkdirs();}String fileNameNew = getFileNameNew()+"."+suffix;//File f = new File(destFile.getAbsoluteFile()+"\\"+fileNameNew);file.transferTo(f);f.createNewFile();fileNames[index++] =basePath+destDir+fileNameNew;}} catch (Exception e) {throw e;}}/** *  * @Title:       upload   * @Description: TODO   * @param:       @param file * @param:       @param destDir * @param:       @param request * @param:       @throws Exception * @return:      void * @author:      刘云生 * @Date:        2017年4月14日 上午10:16:16    * @throws */public void upload(MultipartFile file, String destDir,HttpServletRequest request) throws Exception {String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path;try {String suffix = file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf(".")+1);int length = getAllowSuffix().indexOf(suffix);if(length == -1){throw new Exception("请上传允许格式的文件");}if(file.getSize() > getAllowSize()){throw new Exception("您上传的文件大小已经超出范围");}String realPath = request.getSession().getServletContext().getRealPath("/")+"/";File destFile = new File(realPath+destDir);if(!destFile.exists()){destFile.mkdirs();}String fileNameNew = getFileNameNew()+"."+suffix;File f = new File(destFile.getAbsoluteFile()+"/"+fileNameNew);file.transferTo(f);f.createNewFile();//包含网站的全路径http://localhost:8080/QDLIMAP/upload/user/20170414104142667.png//fileName = basePath+destDir+fileNameNew;//返回相对路径upload/user/20170414104142667.pngfileName = destDir+fileNameNew;} catch (Exception e) {throw e;}}}

4.controller层上传函数

@RequestMapping(value = "news_uploder", method ={RequestMethod.POST,RequestMethod.GET}, produces = "application/json; charset=utf-8")@ResponseBodypublic String uploder(@RequestParam MultipartFile[] file,HttpServletRequest request,HttpServletResponse response){String flag=null;try {WebuploaderUtil webuploaderUtil=new WebuploaderUtil();webuploaderUtil.upload(file[0], "upload/news/", request);flag=webuploaderUtil.getFileName();} catch (Exception e) {e.printStackTrace();}return flag;}

5.JSP页面

<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>图片上传</title><link rel="stylesheet" href="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/css/bootstrap.min.css">  <script src="http://cdn.static.runoob.com/libs/jquery/2.1.1/jquery.min.js"></script><script src="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/js/bootstrap.min.js"></script>                       <link rel="stylesheet" type="text/css" href="webuploader-0.1.5/webuploader.css" />    <link rel="stylesheet" type="text/css" href="webuploader-0.1.5/style.css" />    <style type="text/css">         </style></head><body><%-- <jsp:include page="./cms/index.jsp"></jsp:include> --%><%-- <%@ include file="NewFile.jsp" %> --%><%@ include file="/WEB-INF/page/common_import/header.jsp" %> <div id="wrapper"  >        <div id="container" class="col-sm-6">            <!--头部，相册选择和格式选择-->            <div id="uploader">                <div class="queueList">                    <div id="dndArea" class="placeholder">                        <div id="filePicker"></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 class="form-group col-sm-6"><label for="name" class="form-group col-sm-12">新闻首页导航图片：</label> <img id="myImg" alt="导航图片" src=""style="width: 300px; height: 300px;"> <input type="text"class="form-control" id="newsImg" placeholder="新闻导航图片路径" disabledstyle="display: none;"></div></div><div class="form-group"><div class="col-sm-offset-2 col-sm-12"><button   class="btn btn-default" onclick="cms_CmsNews_submit();">提交</button><button type="submit" class="btn btn-default">取消</button><a href="jspView?jsp=cms/news/news_list" class="btn btn-default" >返回新闻列表</a></div></div><input type="text" id="method" value="<%=request.getAttribute("method") %>" style="display:none;"/><input type="text" id="newsId" value="<%=request.getAttribute("newsId") %>" style="display:none;"/><script src="webuploader-0.1.5/webuploader.js"></script><script src="webuploader-0.1.5/news_img_edit_upload.js"></script><script type="text/javascript">window.onload = function() { var newsId=$("#newsId").val();cms_CmsNews_selectByPrimaryKey(newsId);}; function cms_CmsNews_selectByPrimaryKey(newsId){$.ajax({url:'cms_CmsNews_selectByPrimaryKey',data:{newsId:newsId         },dataType:'json',type:'post',success:function(data){var cmsNews=data;        $("#newsImg").val(cmsNews.newsImg);        $("#myImg").attr("src",cmsNews.newsImg); }, error:function(data){ alert('提交失败');}});}function cms_CmsNews_update(newsId){$.ajax({url:'cms_CmsNews_update',data:{newsId:newsId,newsImg:$("#newsImg").val(),         },dataType:'json',type:'post',success:function(data){ alert('提交成功'); }, error:function(data){ alert('提交失败');}});}function cms_CmsNews_submit(){if("update"==$("#method").val()){var newsId=$("#newsId").val();cms_CmsNews_update(newsId);}else{cms_CmsNews_insert();}}</script><%@ include file="/WEB-INF/page/common_import/footer.jsp" %></body></html>

6.news_img_edit_upload.js主要代码

(function( $ ){    // 当domReady的时候开始初始化    $(function() {        var $wrap = $('#uploader'),            // 图片容器            $queue = $( '<ul class="filelist"></ul>' )                .appendTo( $wrap.find( '.queueList' ) ),            // 状态栏，包括进度和控制按钮            $statusBar = $wrap.find( '.statusBar' ),            // 文件总体选择信息。            $info = $statusBar.find( '.info' ),            // 上传按钮            $upload = $wrap.find( '.uploadBtn' ),            // 没选择文件之前的内容。            $placeHolder = $wrap.find( '.placeholder' ),            $progress = $statusBar.find( '.progress' ).hide(),            // 添加的文件数量            fileCount = 0,            // 添加的文件总大小            fileSize = 0,            // 优化retina, 在retina下这个值是2            ratio = window.devicePixelRatio || 1,            // 缩略图大小            thumbnailWidth = 110 * ratio,            thumbnailHeight = 110 * ratio,            // 可能有pedding, ready, uploading, confirm, done.            state = 'pedding',            // 所有文件的进度信息，key为file id            percentages = {},            // 判断浏览器是否支持图片的base64            isSupportBase64 = ( function() {                var data = new Image();                var support = true;                data.onload = data.onerror = function() {                    if( this.width != 1 || this.height != 1 ) {                        support = false;                    }                }                data.src = "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==";                return support;            } )(),            // 检测是否已经安装flash，检测flash的版本            flashVersion = ( function() {                var version;                try {                    version = navigator.plugins[ 'Shockwave Flash' ];                    version = version.description;                } catch ( ex ) {                    try {                        version = new ActiveXObject('ShockwaveFlash.ShockwaveFlash')                                .GetVariable('$version');                    } catch ( ex2 ) {                        version = '0.0';                    }                }                version = version.match( /\d+/g );                return parseFloat( version[ 0 ] + '.' + version[ 1 ], 10 );            } )(),            supportTransition = (function(){                var s = document.createElement('p').style,                    r = 'transition' in s ||                            'WebkitTransition' in s ||                            'MozTransition' in s ||                            'msTransition' in s ||                            'OTransition' in s;                s = null;                return r;            })(),            // WebUploader实例            uploader;        if ( !WebUploader.Uploader.support('flash') && WebUploader.browser.ie ) {            // flash 安装了但是版本过低。            if (flashVersion) {                (function(container) {                    window['expressinstallcallback'] = function( state ) {                        switch(state) {                            case 'Download.Cancelled':                                alert('您取消了更新！')                                break;                            case 'Download.Failed':                                alert('安装失败')                                break;                            default:                                alert('安装已成功，请刷新！');                                break;                        }                        delete window['expressinstallcallback'];                    };                    var swf = './expressInstall.swf';                    // insert flash object                    var html = '<object type="application/' +                            'x-shockwave-flash" data="' +  swf + '" ';                    if (WebUploader.browser.ie) {                        html += 'classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" ';                    }                    html += 'width="100%" height="100%" style="outline:0">'  +                        '<param name="movie" value="' + swf + '" />' +                        '<param name="wmode" value="transparent" />' +                        '<param name="allowscriptaccess" value="always" />' +                    '</object>';                    container.html(html);                })($wrap);            // 压根就没有安转。            } else {                $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>');            }            return;        } else if (!WebUploader.Uploader.support()) {            alert( 'Web Uploader 不支持您的浏览器！');            return;        }        // 实例化        uploader = WebUploader.create({            pick: {                id: '#filePicker',                label: '点击选择图片'            },            formData: {                uid: 123            },            dnd: '#dndArea',            paste: '#uploader',            swf: '../Uploader.swf',            chunked: false,            chunkSize: 512 * 1024,            server: 'news_uploder',//请求后台的入口            // runtimeOrder: 'flash',            // accept: {            //     title: 'Images',            //     extensions: 'gif,jpg,jpeg,bmp,png',            //     mimeTypes: 'image/*'            // },           accept: {                 title: 'Images',                 extensions: 'gif,jpg,jpeg,bmp,png',                 mimeTypes: 'image/*'             },                        // 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。            disableGlobalDnd: true,            fileNumLimit: 100,            fileSizeLimit: 200 * 1024 * 1024,    // 200 M            fileSingleSizeLimit: 50 * 1024 * 1024    // 50 M        });        // 拖拽时不接受 js, txt 文件。        uploader.on( 'dndAccept', function( items ) {            var denied = false,                len = items.length,                i = 0,                // 修改js类型                unAllowed = 'text/plain;application/javascript ';            for ( ; i < len; i++ ) {                // 如果在列表里面                if ( ~unAllowed.indexOf( items[ i ].type ) ) {                    denied = true;                    break;                }            }            return !denied;        });        // uploader.on('filesQueued', function() {        //     uploader.sort(function( a, b ) {        //         if ( a.name < b.name )        //           return -1;        //         if ( a.name > b.name )        //           return 1;        //         return 0;        //     });        // });        // 添加“添加文件”的按钮，        uploader.addButton({            id: '#filePicker2',            label: '继续添加'        });        uploader.on('ready', function() {            window.uploader = uploader;        });        //文件上传成功返回的文件路径        uploader.on('uploadSuccess', function(file, json) {              console.log(json);            $("#myImg").attr("src",json);                        $("#newsImg").val(json);        });         // 当有文件添加进来时执行，负责view的创建        function addFile( file ) {            var $li = $( '<li id="' + file.id + '">' +                    '<p class="title">' + file.name + '</p>' +                    '<p class="imgWrap"></p>'+                    '<p class="progress"><span></span></p>' +                    '</li>' ),                $btns = $('<div class="file-panel">' +                    '<span class="cancel">删除</span>' +                    '<span class="rotateRight">向右旋转</span>' +                    '<span class="rotateLeft">向左旋转</span></div>').appendTo( $li ),                $prgress = $li.find('p.progress span'),                $wrap = $li.find( 'p.imgWrap' ),                $info = $('<p class="error"></p>'),                showError = function( code ) {                    switch( code ) {                        case 'exceed_size':                            text = '文件大小超出';                            break;                        case 'interrupt':                            text = '上传暂停';                            break;                        default:                            text = '上传失败，请重试';                            break;                    }                    $info.text( text ).appendTo( $li );                };            if ( file.getStatus() === 'invalid' ) {                showError( file.statusText );            } else {                // @todo lazyload                $wrap.text( '预览中' );                uploader.makeThumb( file, function( error, src ) {                    var img;                    if ( error ) {                        $wrap.text( '不能预览' );                        return;                    }                    if( isSupportBase64 ) {                        img = $('<img src="'+src+'">');                        $wrap.empty().append( img );                    } else {                        $.ajax('../../server/preview.php', {                            method: 'POST',                            data: src,                            dataType:'json'                        }).done(function( response ) {                            if (response.result) {                                img = $('<img src="'+response.result+'">');                                $wrap.empty().append( img );                            } else {                                $wrap.text("预览出错");                            }                        });                    }                }, thumbnailWidth, thumbnailHeight );                percentages[ file.id ] = [ file.size, 0 ];                file.rotation = 0;            }            file.on('statuschange', function( cur, prev ) {                if ( prev === 'progress' ) {                    $prgress.hide().width(0);                } else if ( prev === 'queued' ) {                    $li.off( 'mouseenter mouseleave' );                    $btns.remove();                }                // 成功                if ( cur === 'error' || cur === 'invalid' ) {                    console.log( file.statusText );                    showError( file.statusText );                    percentages[ file.id ][ 1 ] = 1;                } else if ( cur === 'interrupt' ) {                    showError( 'interrupt' );                } else if ( cur === 'queued' ) {                    percentages[ file.id ][ 1 ] = 0;                } else if ( cur === 'progress' ) {                    $info.remove();                    $prgress.css('display', 'block');                } else if ( cur === 'complete' ) {                    $li.append( '<span class="success"></span>' );                }                $li.removeClass( 'state-' + prev ).addClass( 'state-' + cur );            });            $li.on( 'mouseenter', function() {                $btns.stop().animate({height: 30});            });            $li.on( 'mouseleave', function() {                $btns.stop().animate({height: 0});            });            $btns.on( 'click', 'span', function() {                var index = $(this).index(),                    deg;                switch ( index ) {                    case 0:                        uploader.removeFile( file );                        return;                    case 1:                        file.rotation += 90;                        break;                    case 2:                        file.rotation -= 90;                        break;                }                if ( supportTransition ) {                    deg = 'rotate(' + file.rotation + 'deg)';                    $wrap.css({                        '-webkit-transform': deg,                        '-mos-transform': deg,                        '-o-transform': deg,                        'transform': deg                    });                } else {                    $wrap.css( 'filter', 'progid:DXImageTransform.Microsoft.BasicImage(rotation='+ (~~((file.rotation/90)%4 + 4)%4) +')');                    // use jquery animate to rotation                    // $({                    //     rotation: rotation                    // }).animate({                    //     rotation: file.rotation                    // }, {                    //     easing: 'linear',                    //     step: function( now ) {                    //         now = now * Math.PI / 180;                    //         var cos = Math.cos( now ),                    //             sin = Math.sin( now );                    //         $wrap.css( 'filter', "progid:DXImageTransform.Microsoft.Matrix(M11=" + cos + ",M12=" + (-sin) + ",M21=" + sin + ",M22=" + cos + ",SizingMethod='auto expand')");                    //     }                    // });                }            });            $li.appendTo( $queue );        }        // 负责view的销毁        function removeFile( file ) {            var $li = $('#'+file.id);            delete percentages[ file.id ];            updateTotalProgress();            $li.off().find('.file-panel').off().end().remove();        }        function updateTotalProgress() {            var loaded = 0,                total = 0,                spans = $progress.children(),                percent;            $.each( percentages, function( k, v ) {                total += v[ 0 ];                loaded += v[ 0 ] * v[ 1 ];            } );            percent = total ? loaded / total : 0;            spans.eq( 0 ).text( Math.round( percent * 100 ) + '%' );            spans.eq( 1 ).css( 'width', Math.round( percent * 100 ) + '%' );            updateStatus();        }        function updateStatus() {            var text = '', stats;            if ( state === 'ready' ) {                text = '选中' + fileCount + '张图片，共' +                        WebUploader.formatSize( fileSize ) + '。';            } else if ( state === 'confirm' ) {                stats = uploader.getStats();                if ( stats.uploadFailNum ) {                    text = '已成功上传' + stats.successNum+ '张照片至XX相册，'+                        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>'                }            } else {                stats = uploader.getStats();                text = '共' + fileCount + '张（' +                        WebUploader.formatSize( fileSize )  +                        '），已上传' + stats.successNum + '张';                if ( stats.uploadFailNum ) {                    text += '，失败' + stats.uploadFailNum + '张';                }            }            $info.html( text );        }        function setState( val ) {            var file, stats;            if ( val === state ) {                return;            }            $upload.removeClass( 'state-' + state );            $upload.addClass( 'state-' + val );            state = val;            switch ( state ) {                case 'pedding':                    $placeHolder.removeClass( 'element-invisible' );                    $queue.hide();                    $statusBar.addClass( 'element-invisible' );                    uploader.refresh();                    break;                case 'ready':                    $placeHolder.addClass( 'element-invisible' );                    $( '#filePicker2' ).removeClass( 'element-invisible');                    $queue.show();                    $statusBar.removeClass('element-invisible');                    uploader.refresh();                    break;                case 'uploading':                    $( '#filePicker2' ).addClass( 'element-invisible' );                    $progress.show();                    $upload.text( '暂停上传' );                    break;                case 'paused':                    $progress.show();                    $upload.text( '继续上传' );                    break;                case 'confirm':                    $progress.hide();                    $( '#filePicker2' ).removeClass( 'element-invisible' );                    $upload.text( '开始上传' );                    stats = uploader.getStats();                    if ( stats.successNum && !stats.uploadFailNum ) {                        setState( 'finish' );                        return;                    }                    break;                case 'finish':                    stats = uploader.getStats();                    if ( stats.successNum ) {                    console.log(uploader);                        alert( '上传成功' );                    } else {                        // 没有成功的图片，重设                        state = 'done';                        location.reload();                    }                    break;            }            updateStatus();        }        uploader.onUploadProgress = function( file, percentage ) {            var $li = $('#'+file.id),                $percent = $li.find('.progress span');            $percent.css( 'width', percentage * 100 + '%' );            percentages[ file.id ][ 1 ] = percentage;            updateTotalProgress();        };        uploader.onFileQueued = function( file ) {            fileCount++;            fileSize += file.size;            if ( fileCount === 1 ) {                $placeHolder.addClass( 'element-invisible' );                $statusBar.show();            }            addFile( file );            setState( 'ready' );            updateTotalProgress();        };        uploader.onFileDequeued = function( file ) {            fileCount--;            fileSize -= file.size;            if ( !fileCount ) {                setState( 'pedding' );            }            removeFile( file );            updateTotalProgress();        };        uploader.on( 'all', function( type ) {            var stats;            switch( type ) {                case 'uploadFinished':                    setState( 'confirm' );                    break;                case 'startUpload':                    setState( 'uploading' );                    break;                case 'stopUpload':                    setState( 'paused' );                    break;            }        });        uploader.onError = function( code ) {            alert( 'Eroor: ' + code );        };        $upload.on('click', function() {            if ( $(this).hasClass( 'disabled' ) ) {                return false;            }            if ( state === 'ready' ) {                uploader.upload();            } else if ( state === 'paused' ) {                uploader.upload();            } else if ( state === 'uploading' ) {                uploader.stop();            }        });        $info.on( 'click', '.retry', function() {            uploader.retry();        } );        $info.on( 'click', '.ignore', function() {            alert( 'todo' );        } );        $upload.addClass( 'state-' + state );        updateTotalProgress();                    });})( jQuery );

7.显示效果