Blueimp fileupload：单击缩略图不显示原始图像

时间：2015-04-24 14:14:01

标签： javascript file-upload jquery-file-upload blueimp

我在Blueimp插件中遇到了这个奇怪的问题，其中图片上传或删除效果很好但是一旦上传图片并显示缩略图，点击该图片会使屏幕变为灰色Greyed out image shown，直到我再次点击窗口，我无法做任何其他事情。不用说，完整的图像永远不会显示出来。如果我复制该URL并从新的浏览器选项卡调用它，则完整图像显示正常。 The blue circled image url doesn't display the full image 我把我的Java代码放在调试中，注意到HttpServlet Get方法确实被调用了，它确实返回了内联图像。它只是没有在浏览器中显示。 当我将鼠标悬停在图片上时，网址显示为 http://localhost:8080/fileupload/UploadServlet?getfile=Chrysanthemum.jpg 如果我在新的浏览器窗口中复制此链接，它会显示完整的图像。当我点击下面显示的缩略图时，它只是不起作用，如下图所示。 以下是我的upload.jsp：

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<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html lang="en">
    <head>
        <!-- Force latest IE rendering engine or ChromeFrame if installed -->
        <!--[if IE]><meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"><![endif]-->
        <meta charset="utf-8">
        <title>jQuery File Upload Demo</title>
        <meta name="description" content="File Upload widget with multiple file selection, drag&amp;drop support, progress bar and preview images for jQuery. Supports cross-domain, chunked and resumable file uploads. Works with any server-side platform (Google App Engine, PHP, Python, Ruby on Rails, Java, etc.) that supports standard HTML form file uploads.">
        <meta name="viewport" content="width=device-width">
        <!-- Bootstrap CSS Toolkit styles -->
        <link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.0.3/css/bootstrap.min.css">
        <!-- Generic page styles -->
        <link rel="stylesheet" href="css/upload/style.css">
        <!-- Bootstrap styles for responsive website layout, supporting different screen sizes -->
        <link rel="stylesheet" href="css/upload/bootstrap-responsive.min.css">
        <!-- Bootstrap CSS fixes for IE6 -->
        <!--[if lt IE 7]><link rel="stylesheet" href="http://blueimp.github.com/cdn/css/bootstrap-ie6.min.css"><![endif]-->
        <!-- Bootstrap Image Gallery styles -->
        <link rel="stylesheet" href="css/upload/bootstrap-image-gallery.min.css">
        <!-- CSS to style the file input field as button and adjust the Bootstrap progress bars -->
        <link rel="stylesheet" href="css/upload/jquery.fileupload-ui.css">
        <!-- Shim to make HTML5 elements usable in older Internet Explorer versions -->
        <!--[if lt IE 9]><script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script><![endif]-->
    </head>
    <body>
        <div class="navbar navbar-fixed-top">
            <div class="navbar-inner">
                <div class="container">
                    <a class="btn btn-navbar" data-toggle="collapse" data-target=".nav-collapse">
                        <span class="icon-bar"></span>
                        <span class="icon-bar"></span>
                        <span class="icon-bar"></span>
                    </a>
                    <a class="brand" href="https://github.com/blueimp/jQuery-File-Upload">jQuery File Upload</a>
                    <div class="nav-collapse">
                        <ul class="nav">
                            <li class="active"><a href="#">Demo</a></li>
                            <li><a href="https://github.com/blueimp/jQuery-File-Upload/downloads">Downloads</a></li>
                            <li><a href="https://github.com/blueimp/jQuery-File-Upload">Source Code</a></li>
                            <li><a href="https://github.com/blueimp/jQuery-File-Upload/wiki">Documentation</a></li>
                            <li><a href="https://github.com/blueimp/jQuery-File-Upload/issues">Issues</a></li>
                            <li><a href="test/">Test</a></li>
                            <li><a href="https://blueimp.net">&copy; Sebastian Tschan</a></li>
                        </ul>
                    </div>
                </div>
            </div>
        </div>
        <div class="container">
            <div class="page-header">
                <h1>jQuery File Upload Demo</h1>
            </div>
            <blockquote>
                <p>File Upload widget with multiple file selection, drag&amp;drop support, progress bars and preview images for jQuery.<br>
                    Supports cross-domain, chunked and resumable file uploads and client-side image resizing.<br>
                    Works with any server-side platform (PHP, Python, Ruby on Rails, Java, Node.js, Go etc.) that supports standard HTML form file uploads.</p>
            </blockquote>
            <br>
            <!-- The file upload form used as target for the file upload widget -->
           <!--  <form id="fileupload" action='/nonamer/json/rest/imageSvc/approval' method="POST" enctype="multipart/form-data"> -->
           <form id="fileupload" action='UploadServlet' method="POST" enctype="multipart/form-data">
                <!-- The fileupload-buttonbar contains buttons to add/delete files and start/cancel the upload -->
                <div class="row fileupload-buttonbar">
                    <div class="span7">
                        <!-- The fileinput-button span is used to style the file input field as button -->
                        <span class="btn btn-success fileinput-button">
                            <i class="icon-plus icon-white"></i>
                            <span>Add files...</span>
                            <input type="file" name="files[]" multiple>
                        </span>
                        <button type="submit" class="btn btn-primary start">
                            <i class="icon-upload icon-white"></i>
                            <span>Start upload</span>
                        </button>
                        <button type="reset" class="btn btn-warning cancel">
                            <i class="icon-ban-circle icon-white"></i>
                            <span>Cancel upload</span>
                        </button>
                        <button type="button" class="btn btn-danger delete">
                            <i class="icon-trash icon-white"></i>
                            <span>Delete</span>
                        </button>
                        <input type="checkbox" class="toggle">
                    </div>
                    <!-- The global progress information -->
                    <div class="span5 fileupload-progress fade">
                        <!-- The global progress bar -->
                        <div class="progress progress-success progress-striped active" role="progressbar" aria-valuemin="0" aria-valuemax="100">
                            <div class="bar" style="width:0%;"></div>
                        </div>
                        <!-- The extended global progress information -->
                        <div class="progress-extended">&nbsp;</div>
                    </div>
                </div>
                <!-- The loading indicator is shown during file processing -->
                <div class="fileupload-loading"></div>
                <br>
                <!-- The table listing the files available for upload/download -->
                <table role="presentation" class="table table-striped"><tbody class="files" data-toggle="modal-gallery" data-target="#modal-gallery"></tbody></table>
            </form>
            <br>
            <div class="well">
                <h3>Demo Notes</h3>
                <ul>
                    <li>The maximum file size for uploads in this demo is <strong>5 MB</strong> (default file size is unlimited).</li>
                    <li>Only image files (<strong>JPG, GIF, PNG</strong>) are allowed in this demo (by default there is no file type restriction).</li>
                    <li>Uploaded files will be deleted automatically after <strong>5 minutes</strong> (demo setting).</li>
                    <li>You can <strong>drag &amp; drop</strong> files from your desktop on this webpage with Google Chrome, Mozilla Firefox and Apple Safari.</li>
                    <li>Please refer to the <a href="https://github.com/blueimp/jQuery-File-Upload">project website</a> and <a href="https://github.com/blueimp/jQuery-File-Upload/wiki">documentation</a> for more information.</li>
                    <li>Built with Twitter's <a href="http://twitter.github.com/bootstrap/">Bootstrap</a> toolkit and Icons from <a href="http://glyphicons.com/">Glyphicons</a>.</li>
                </ul>
            </div>
        </div>
        <!-- modal-gallery is the modal dialog used for the image gallery -->
        <div id="modal-gallery" class="modal modal-gallery hide fade" data-filter=":odd">
            <div class="modal-header">
                <a class="close" data-dismiss="modal">&times;</a>
                <h3 class="modal-title"></h3>
            </div>
            <div class="modal-body"><div class="modal-image"></div></div>
            <div class="modal-footer">
                <a class="btn modal-download" target="_blank">
                    <i class="icon-download"></i>
                    <span>Download</span>
                </a>
                <a class="btn btn-success modal-play modal-slideshow" data-slideshow="5000">
                    <i class="icon-play icon-white"></i>
                    <span>Slideshow</span>
                </a>
                <a class="btn btn-info modal-prev">
                    <i class="icon-arrow-left icon-white"></i>
                    <span>Previous</span>
                </a>
                <a class="btn btn-primary modal-next">
                    <span>Next</span>
                    <i class="icon-arrow-right icon-white"></i>
                </a>
            </div>
        </div>

        <!-- The template to display files available for upload -->
        <script id="template-upload" type="text/x-tmpl">
            {% for (var i=0, file; file=o.files[i]; i++) { %}
        <tr class="template-upload fade">
            <td class="preview"><span class="fade"></span></td>
            <td class="name"><span>{%=file.name%}</span></td>
            <td class="size"><span>{%=o.formatFileSize(file.size)%}</span></td>
            {% if (file.error) { %}
            <td class="error" colspan="2"><span class="label label-important">Error</span> {%=file.error%}</td>
            {% } else if (o.files.valid && !i) { %}
            <td>
                <div class="progress progress-success progress-striped active" role="progressbar" aria-valuemin="0" aria-valuemax="100" aria-valuenow="0"><div class="bar" style="width:0%;"></div></div>
            </td>
            <td class="start">{% if (!o.options.autoUpload) { %}
                <button class="btn btn-primary">
                    <i class="icon-upload icon-white"></i>
                    <span>Start</span>
                </button>
                {% } %}</td>
            {% } else { %}
            <td colspan="2"></td>
            {% } %}
            <td class="cancel">{% if (!i) { %}
                <button class="btn btn-warning">
                    <i class="icon-ban-circle icon-white"></i>
                    <span>Cancel</span>
                </button>
                {% } %}</td>
        </tr>
        {% } %}
    </script>
    <!-- The template to display files available for download -->
    <script id="template-download" type="text/x-tmpl">
        {% for (var i=0, file; file=o.files[i]; i++) { %}
        <tr class="template-download fade">
            {% if (file.error) { %}
            <td></td>
            <td class="name"><span>{%=file.name%}</span></td>
            <td class="size"><span>{%=o.formatFileSize(file.size)%}</span></td>
            <td class="error" colspan="2"><span class="label label-important">Error</span> {%=file.error%}</td>
            {% } else { %}
            <td class="preview">{% if (file.thumbnail_url) { %}
                <a href="{%=file.url%}" title="{%=file.name%}" rel="gallery" download="{%=file.name%}"><img src="{%=file.thumbnail_url%}"></a>
                {% } %}</td>
            <td class="name">
                <a href="{%=file.url%}" title="{%=file.name%}" rel="{%=file.thumbnail_url&&'gallery'%}" download="{%=file.name%}">{%=file.name%}</a>
            </td>
            <td class="size"><span>{%=o.formatFileSize(file.size)%}</span></td>
            <td colspan="2"></td>
            {% } %}
            <td class="delete">
                <button class="btn btn-danger" data-type="{%=file.delete_type%}" data-url="{%=file.delete_url%}"{% if (file.delete_with_credentials) { %} data-xhr-fields='{"withCredentials":true}'{% } %}>
                        <i class="icon-trash icon-white"></i>
                    <span>Delete</span>
                </button>
                <input type="checkbox" name="delete" value="1">
            </td>
        </tr>
        {% } %}
    </script>

    <script src="js/jquery-1.8.2.min.js"></script>
    <script src="js/vendor/jquery.ui.widget.js"></script>
    <script src="js/tmpl.min.js"></script>
    <script src="js/load-image.min.js"></script>
    <script src="js/canvas-to-blob.min.js"></script>
    <script src="js/bootstrap.min.js"></script>
    <script src="js/bootstrap-image-gallery.min.js"></script>
    <script src="js/jquery.iframe-transport.js"></script>
    <script src="js/jquery.fileupload.js"></script>
    <script src="js/jquery.fileupload-fp.js"></script>
    <script src="js/jquery.fileupload-ui.js"></script>
    <script src="js/locale.js"></script>
    <script src="js/main.js"></script>
</body> 
</html>
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