嘿伙计们我陷入困境。我有一种情况需要上传不同文件夹中的缩放图像，例如： - 小文件夹上的1（小）.jpg，中文件夹上的1（中）.jpg和上传文件夹中的1.jpg。现在，下面的代码是将所有3个图像上传到不同的文件夹，但文件是blob文件。如何获得缩放图像。 （编辑代码）
<cfset destinationDirectory = expandpath('/file_uploader/uploads')>
<cfset counter = 1>
<cfset uniqueFileName = "">
<cfset destinationFilePath = "">
<cfset smallfile = "">
<cfset mediumfile ="">
<cfset mainfile= ''>
<cfscript>
variables.validMimeTypes = {'image/jpeg': {extension: 'jpg'}
,'image/png': {extension: 'png'}
,'image/png': {extension: 'gif'}
}; </cfscript>
<cftry>
<cfset cnt= 1>
<cfset file_name = #qqfilename#>
<cfset file_size = #qqtotalfilesize#>
<!--- If a file with the same name already exists at the destination --->
<cfif fileExists(destinationDirectory & "/" & file_name)>
<!--- Loop up to 100 times to try create a unique file_name --->
<cfset destinationFilePath = destinationDirectory & "/" & counter & "_" & file_name>
<!--- Loop up to 100 times to try create a unique filename --->
<cfloop condition="counter LT 100">
<cfset destinationFilePath = destinationDirectory & "/" & counter & "_" & file_name>
<cfif fileExists(destinationFilePath)>
<cfset counter++>
<cfelse>
<cfset uniqueFileName = "IMG" & counter & "_" & file_name>
<cfbreak/>
</cfif>
</cfloop>
<!--- Filename does not already exist at the destination --->
<cfelse>
<cfset uniqueFileName = "IMG" & "_" & file_name>
<cfset destinationFilePath = destinationDirectory & "/" & file_name>
</cfif>
<cfif len(trim(uniqueFileName))>
<cfset session.cntr ++>
<cfif find("(small)",file_name) neq 0>
<cfset smallfile = file_name>
<cffile
action="upload"
destination="#UploadPath2#"
accept="#StructKeyList(variables.validMimeTypes)#"
nameconflict="#smallfile#"
>
<cfelseif find("(medium)",file_name) neq 0>
<cfset mediumfile = file_name>
<cffile
action="upload"
filefield="qqfile"
destination="#UploadPath1#"
accept="#StructKeyList(variables.validMimeTypes)#"
nameconflict="#uniqueFileName#"
>
<cfelse>
<cfset mainfile= file_name>
<cffile
action="upload"
filefield="qqfile"
destination="#destinationFilePath#"
accept="#StructKeyList(variables.validMimeTypes)#"
nameconflict="#uniqueFileName#"
>
</cfif>
<CFSET local.response['success'] = true >
<CFSET local.response['type'] = 'xhr' >
<CFSET local.response['obj'] = session.cntr >
<cfelse>
<CFSET local.response['error'] = 'Unable to move the file and create a unique file_name at the destination'>
</cfif>
<cfoutput>
#serializeJSON(local.response,true)#
</cfoutput>
<cfabort/>
<cfcatch type="any">
<cfoutput> #serializeJSON(session.cntr,true)# </cfoutput>
<cfabort/>
</cfcatch> </cftry>
下面是UI页面
<!DOCTYPE html> <html> <head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- jQuery
====================================================================== -->
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
<!-- Fine Uploader Gallery CSS file
====================================================================== -->
<link href="../file_uploader/includes/fine-uploader-gallery.css" rel="stylesheet">
<!-- Fine Uploader JS file
====================================================================== -->
<script src="../file_uploader/includes/all.fine-uploader.js"></script>
<script src="../file_uploader/includes/all.fine-uploader.min.js"></script>
<script src="../file_uploader/includes/jquery.fine-uploader.js"></script>
<script src="../file_uploader/includes/jquery.fine-uploader.min.js"></script>
<!-- Fine Uploader Gallery template
====================================================================== -->
<script type="text/template" id="qq-template-gallery">
<div class="qq-uploader-selector qq-uploader qq-gallery" qq-drop-area-text="Drop files here">
<div class="qq-total-progress-bar-container-selector qq-total-progress-bar-container">
<div role="progressbar" aria-valuenow="0" aria-valuemin="0" aria-valuemax="100" class="qq-total-progress-bar-selector qq-progress-bar qq-total-progress-bar"></div>
</div>
<div class="qq-upload-drop-area-selector qq-upload-drop-area" qq-hide-dropzone>
<span class="qq-upload-drop-area-text-selector"></span>
</div>
<div class="qq-upload-button-selector qq-upload-button">
<div>Upload a file </div>
</div>
<span class="qq-drop-processing-selector qq-drop-processing">
<span>Processing dropped files...</span>
<span class="qq-drop-processing-spinner-selector qq-drop-processing-spinner"></span>
</span>
<ul class="qq-upload-list-selector qq-upload-list" role="region" aria-live="polite" aria-relevant="additions removals">
<li>
<span role="status" class="qq-upload-status-text-selector qq-upload-status-text"></span>
<div class="qq-progress-bar-container-selector qq-progress-bar-container">
<div role="progressbar" aria-valuenow="0" aria-valuemin="0" aria-valuemax="100" class="qq-progress-bar-selector qq-progress-bar"></div>
</div>
<span class="qq-upload-spinner-selector qq-upload-spinner"></span>
<div class="qq-thumbnail-wrapper">
<img class="qq-thumbnail-selector" qq-max-size="120" qq-server-scale>
</div>
<button type="button" class="qq-upload-cancel-selector qq-upload-cancel">X</button>
<button type="button" class="qq-upload-retry-selector qq-upload-retry">
<span class="qq-btn qq-retry-icon" aria-label="Retry"></span>
Retry
</button>
<div class="qq-file-info">
<div class="qq-file-name">
<span class="qq-upload-file-selector qq-upload-file"></span>
<span class="qq-edit-filename-icon-selector qq-edit-filename-icon" aria-label="Edit filename"></span>
</div>
<input class="qq-edit-filename-selector qq-edit-filename" tabindex="0" type="text">
<span class="qq-upload-size-selector qq-upload-size"></span>
<button type="button" class="qq-btn qq-upload-delete-selector qq-upload-delete">
<span class="qq-btn qq-delete-icon" aria-label="Delete"></span>
</button>
<button type="button" class="qq-btn qq-upload-pause-selector qq-upload-pause">
<span class="qq-btn qq-pause-icon" aria-label="Pause"></span>
</button>
<button type="button" class="qq-btn qq-upload-continue-selector qq-upload-continue">
<span class="qq-btn qq-continue-icon" aria-label="Continue"></span>
</button>
</div>
</li>
</ul>
<dialog class="qq-alert-dialog-selector">
<div class="qq-dialog-message-selector"></div>
<div class="qq-dialog-buttons">
<button type="button" class="qq-cancel-button-selector">Close</button>
</div>
</dialog>
<dialog class="qq-confirm-dialog-selector">
<div class="qq-dialog-message-selector"></div>
<div class="qq-dialog-buttons">
<button type="button" class="qq-cancel-button-selector">No</button>
<button type="button" class="qq-ok-button-selector">Yes</button>
</div>
</dialog>
<dialog class="qq-prompt-dialog-selector">
<div class="qq-dialog-message-selector"></div>
<input type="text">
<div class="qq-dialog-buttons">
<button type="button" class="qq-cancel-button-selector">Cancel</button>
<button type="button" class="qq-ok-button-selector">Ok</button>
</div>
</dialog>
</div>
</script>
<title>Fine Uploader Gallery View Demo</title> </head> <body>
<!-- Fine Uploader DOM Element
====================================================================== -->
<div id="fine-uploader-gallery"></div>
<!-- Your code to create an instance of Fine Uploader and bind to the DOM/template
====================================================================== -->
<script> var posturl = "../file_uploader/upload_file.cfm"; var t= 0;
var galleryUploader = new qq.FineUploader({
element: document.getElementById("fine-uploader-gallery"),
//debug: true,
autoUpload: false,
template: 'qq-template-gallery',
request:
{
// endpoint: '../file_uploader/upload_file.cfm?id=<cfoutput>#session.cntr#</cfoutput>'
endpoint: posturl
},
thumbnails:
{
placeholders:
{
waitingPath: '../file_uploader/includes/placeholders/waiting-generic.png',
notAvailablePath: '../file_uploader/includes/placeholders/not_available-generic.png'
}
},
validation:
{
allowedExtensions: ['jpeg', 'jpg', 'gif', 'png']
},
callbacks: {
onComplete: function(id, name, responseJSON , xhrOrXdr)
{
if (responseJSON.success)
{
t++;
alert("success"+t);
uploadSuccess: {
endpoint: "../file_uploader/upload_file.cfm?id=1"
}
}
},
onError: function(id, name, errorReason, xhrOrXdr)
{
alert(qq.format("Error on file number {} - {}. Reason: {}", id, name, errorReason));
}
},
scaling:
{
//hideScaled: true,
sizes:
[
{name: "small", maxSize: 100},
{name: "medium", maxSize: 300}
]
}
});
</script> </body> </html>
答案 0 :(得分：1)
至少有两种方法可以确定图像的缩放大小。一种方法是在图像的文件名中查找适当的前缀。例如，如果您已指示Fine Uploader包含短语“small”，那么您应该在文件名服务器端查找字符串“（small）”。您在your scaling options中指定的任何其他大小前缀也是如此。
另一种选择是查看缩放组中文件的实际大小。组中的每个缩放文件将包含指向原始图像/文件的UUID的qqparentuuid请求参数。拥有所有这些文件后，您可以检查它们的大小，以确定哪个是小，中，大等。
我强烈建议使用第一个选项。