多谢答复。现在已经没有这个错误了。这是我刚刚开始swfupload时犯的低级错误。

请问上传过程应该跟踪哪个函数呢？看来文件没有生成，可能问题出在上传过程中。

似乎文件没有传上去，没有传上去，move_uploaded_file当然没有用。

去掉了move_uploaded_file,代码如下：

try{ 
     $filedata=$_FILES['Filedata'];
     
     echo $filedata['tmp_name'];
    }
catch(Exception $e){
    echo 'Error: ' . $e->getMessage();
}

调试信息如下：

SWF DEBUG: ReturnUploadStart(): File accepted by startUpload event and readied for upload.  Starting upload to /Yii/index.php?r=vEHICLEPICTURE/upload&PHPSESSID=s60td0gov8cumesuegrkrenk13 for File ID: SWFUpload_0_0
SWF DEBUG: Event: uploadProgress (OPEN): File ID: SWFUpload_0_0
SWF DEBUG: Event: uploadProgress: File ID: SWFUpload_0_0. Bytes: 95490. Total: 95490
SWF DEBUG: Event: uploadSuccess: File ID: SWFUpload_0_0 Response Received: true Data: [color=Blue]C:\Documents and Settings\Administrator\Local Settings\Temp\1\php88.tmp[/color]
SWF DEBUG: Event: uploadComplete : Upload cycle complete.
EXCEPTION: message: 'document.getElementById(...)' 为空或不是对象
EXCEPTION: number: -2146823281
EXCEPTION: description: 'document.getElementById(...)' 为空或不是对象

但是去找，没有找到 这个文件：C:\Documents and Settings\Administrator\Local Settings\Temp\1\php88.tmp

似乎文件根本没有生成，怎么回事呢？

我查看了下网页的源代码：

swfu = new SWFUpload({'post_params':{'PHPSESSID':'fm9ua3qbobe1476p63fj9fk3l2'},'flash_url':'/Yii/assets/ee5da5a6/swfupload.swf','use_query_string':true,'upload_url':'/Yii/index.php?r=upload'

我的Yii目录下有个upload的子目录，

请问这样是有问题的吗？

请问哪一个地方是配路径的啊？

<?php
$this->widget('application.extensions.swfupload.CSwfUpload', array(
    'jsHandlerUrl'=>'\Yii\path\to\handler.js', //Relative path
    'postParams'=>array(),
    'config'=>array(
        'use_query_string'=>true,
        'upload_url'=>Yii::app()->createUrl('upload'),
        'file_size_limit'=>'2 MB',
        'file_types'=>'*.jpg;*.png;*.gif',
        'file_types_description'=>'Image Files',
        'file_upload_limit'=>0,
        'file_queue_error_handler'=>'js:fileQueueError',
        'file_dialog_complete_handler'=>'js:fileDialogComplete',
        'upload_progress_handler'=>'js:uploadProgress',
        'upload_error_handler'=>'js:uploadError',
        'upload_success_handler'=>'js:uploadSuccess',
        'upload_complete_handler'=>'js:uploadComplete',
        'custom_settings'=>array('upload_target'=>'divFileProgressContainer'),
        'button_placeholder_id'=>'swfupload',
        'button_width'=>170,
        'button_height'=>20,
        'button_text'=>'<span class="button">'.Yii::t('messageFile', 'ButtonLabel').' (Max 2 MB)</span>',
        'button_text_style'=>'.button { font-family: "Lucida Sans Unicode", "Lucida Grande", sans-serif; font-size: 11pt; text-align: center; }',
        'button_text_top_padding'=>0,
        'button_text_left_padding'=>0,
        'button_window_mode'=>'js:SWFUpload.WINDOW_MODE.TRANSPARENT',
        'button_cursor'=>'js:SWFUpload.CURSOR.HAND',
        ),
    )
);
?>
 
<?php echo CHtml::beginForm(); ?>
<div class="form">
    <div class="row">
    <div id="divFileProgressContainer"></div>
    <div class="swfupload"><span id="swfupload">abc</span></div>
    </div>
</div>
<?php echo CHtml::endForm(); ?>

是否这行有问题，'upload_url'=>Yii::app()->createUrl('upload'), 不是太明白这是用于做什么，是用于确定下载到服务器上的路径吗？