webuploader上传图片插件案例

1.引入插件

<link rel="stylesheet" href="../../resources/js/plugins/webuploader-0.1.5/webuploader.css">

<script src="../../resources/js/min/jquery-1.9.1.min.js"></script>
<script src="../../resources/js/plugins/webuploader-0.1.5/webuploader.min.js"></script>

2.html

<td width="125px" class="label-text text-right vertical-top">企业logo：</td>
<td colspan="5">
    <img id="logoPriview" class="product-img" src="../../resources/img/supplier/default.png">
    <div class="upload-tip">
        * 本地图片，支持JPG、JPEG、PNG 格式，<br>
        最佳长宽比例2:1， 图片大小不超过2M<br>
        <div id="logoUploadBtn" class="mgt5">
        </div>
    </div>

</td>

3.css

.new-supplier .product-img{width:110px;height:110px;border-radius:6px;}
.new-supplier .upload-tip{display:inline-block;padding-left:10px;vertical-align:bottom;line-height:18px;font-size:12px;color:#de4751;}

/*按钮不能点击问题，直接在页面上设置样式最省事*/
#logoUploadBtn div:nth-child(2){width:100%!important;height:100%!important;}

4.js

$(function () {
    var $ = jQuery;
    var uploader,baseInfoUploader,productImgUploader,projectCoverUploader;
    // 图表tab切换
    $.each($('.chart-list li'), function (i) {
        $(this).on('click', function () {
            $(this).addClass('active').siblings('li').removeClass('active');
            $('.tabs-content').eq(i).show().siblings('.tabs-content').hide();
        });
    });

    // 上传企业logo
    baseInfoUploader = WebUploader.create({
        auto: false,
        swf: '../../resources/js/plugins/webuploader-0.1.5/Uploader.swf',
        // 文件接收服务端。
        server: 'http://webuploader.duapp.com/server/fileupload.php',
        pick: {
            id: '#logoUploadBtn',
            innerHTML: '选择图片',
            multiple: true
        },
        // 只允许选择图片文件。
        accept: {
            title: 'Images',
            extensions: 'jpg,jpeg,png',
            mimeTypes: 'image/jpg,image/jpeg,image/png'
        },
        fileSingleSizeLimit: 2 * 1024 * 1024
    });
    baseInfoUploader.on( 'fileQueued', function( file ) {
        $img = $('#logoPriview');
        baseInfoUploader.makeThumb( file, function( error, src ) {
            if ( error ) {
                return;
            }
            $img.attr( 'src', src );
        }, 110, 110 );
    });

    // 上传产品图片
    // 在弹层里面的时候，弹出show出来之后，要调用uploader.refresh()方法，否则选择文件的按钮会点击之后没反应（因为太小了，其实没点到）
    productImgUploader = WebUploader.create({
        auto: false,
        swf: '../../resources/js/plugins/webuploader-0.1.5/Uploader.swf',
        // 文件接收服务端。
        server: 'http://webuploader.duapp.com/server/fileupload.php',
        pick: {
            id: '#productImgUploadBtn',
            innerHTML: '选择图片',
            multiple: true
        },
        // 只允许选择图片文件。
        accept: {
            title: 'Images',
            extensions: 'jpg,jpeg,png',
            mimeTypes: 'image/jpg,image/jpeg,image/png'
        },
        fileSingleSizeLimit: 2 * 1024 * 1024
    });
    productImgUploader.on( 'fileQueued', function( file ) {
        $img = $('#productImgPriview');
        productImgUploader.makeThumb( file, function( error, src ) {
            if ( error ) {
                return;
            }
            $img.attr( 'src', src );
        }, 110, 110 );
    });

    // 上传项目封面图
    projectCoverUploader = WebUploader.create({
        auto: false,
        swf: '../../resources/js/plugins/webuploader-0.1.5/Uploader.swf',
        // 文件接收服务端。
        server: 'http://webuploader.duapp.com/server/fileupload.php',
        pick: {
            id: '#projectCoverUploadBtn',
            innerHTML: '选择图片',
            multiple: true
        },
        // 只允许选择图片文件。
        accept: {
            title: 'Images',
            extensions: 'jpg,jpeg,png',
            mimeTypes: 'image/jpg,image/jpeg,image/png'
        },
        fileSingleSizeLimit: 2 * 1024 * 1024
    });
    projectCoverUploader.on( 'fileQueued', function( file ) {
        $img = $('#projectCoverPriview');
        projectCoverUploader.makeThumb( file, function( error, src ) {
            if ( error ) {
                return;
            }
            $img.attr( 'src', src );
        }, 110, 110 );
    });



    //诚信认证，多文件上传
    $wrap = $('#uploader'),
        // 图片容器
        $queue = $('<ul class="filelist"></ul>').appendTo($wrap.find('.queueList')),

        $listTitle = $wrap.find('.list-title');
        // 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 = $('.upload-img').find('.uploadBtn'),

        // 总体进度条
        $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 = 80 * ratio,
        thumbnailHeight = 80 * 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 = {},

        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;
        })(),

//        if ( !WebUploader.Uploader.support() ) {
//            alert( 'Web Uploader 不支持您的浏览器！如果你使用的是IE浏览器，请尝试升级 flash 播放器');
//            throw new Error( 'WebUploader does not support the browser you are using.' );
//        }

        // 实例化
        uploader = WebUploader.create({
            pick: {
                id: '#filePicker',
                innerHTML: '选择图片',
                multiple: true
            },
            accept: {
                title: 'Images',
                extensions: 'jpg,jpeg,png',
                mimeTypes: 'image/jpg,image/jpeg,image/png'
            },

            // swf文件路径
            swf: '../../resources/js/plugins/webuploader-0.1.5/Uploader.swf',

            disableGlobalDnd: true,

            chunked: true,
            // server: 'http://webuploader.duapp.com/server/fileupload.php',
            server: 'http://2betop.net/fileupload.php',
            fileNumLimit: 300,
            fileSizeLimit: 20 * 1024 * 1024,    // 200 M
            fileSingleSizeLimit: 2 * 1024 * 1024    // 50 M
        });

    // 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="imgWrap"></p>' +
            '<p class="progress"><span></span></p>' +
            '<p title=' + file.name + ' class="title ellipsis">' + file.name + '</p>' +
            '</li>'),

            $btns = $('<div class="file-panel">' +
                '<span class="cancel"></span>'
            ).appendTo($li),
//                '<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';
                        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) {
                if (error) {
                    $wrap.text('不能预览');
                    return;
                }

                var img = $('<img src="' + src + '">');
                $wrap.empty().append(img);
            }, 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('<p class="success">上传成功</p>');
            }

            $li.removeClass('state-' + prev).addClass('state-' + cur);
        });


        $btns.on('click', 'span', function () {
            var index = $(this).index();
            switch (index) {
                case 0:
                    uploader.removeFile(file);
                    return;
            }

        });

        $li.appendTo($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 + '张图片，' +
                    stats.uploadFailNum + '张图片上传失败，<a class="retry" style="color: #de4751;" href="#">重新上传</a>失败图片'
            }

        } 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.parent().removeClass('filled');
                $queue.hide();
                $statusBar.addClass('element-invisible');
                uploader.refresh();
                break;

            case 'ready':
//                $placeHolder.addClass( 'element-invisible' );
//                $( '#filePicker2' ).removeClass( 'element-invisible');
                $wrap.show();
                $upload.removeClass('disabled');
                $queue.parent().addClass('filled');
                $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();
                $upload.text('开始上传').addClass('disabled');

                stats = uploader.getStats();
                if (stats.successNum && !stats.uploadFailNum) {
                    setState('finish');
                    return;
                }
                break;
            case 'finish':
                stats = uploader.getStats();
                if (stats.successNum) {
                    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();
});

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