我目前正在编写一个允许用户上传图像的脚本，只需几行简单的代码就可以了。无论如何，昨晚一切都像魅力一样运作，现在惊喜惊喜，奇怪的事情开始突然发生，不知道是什么原因。也就是说，重要的是要注意我正在使用jQuery Form Plugin异步传递值，并且该部分一直在完美地工作，因此我不会发布该部分代码。
这是cfc组件代码：
<cfcomponent output="false">
<cffunction name="test" access="remote" output="false">
<cfparam name="form.title" type="string" default="">
<cfparam name="form.File" type="string" default="">
<cfset add.Msg = ArrayNew(1)>
<!---check if text is added and whether it contains more than 15 characters--->
<cfif len (trim(form.title)) is 0>
<cfset ArrayAppend(add.Msg,"plese enter some text")>
<cfelseif len (trim(form.title)) lt 15>
<cfset ArrayAppend(add.Msg,"text should be at least 15 characters long")>
</cfif>
<!---check if text contains special characters--->
<!--additionally we can allow other characters-->
<cfif refind ("[^A-Z a-z 0-9\\+]+", form.title) and len (trim(form.title)) gte 15>
<cfset ArrayAppend(add.Msg,"your post can not conatin special characters")>
</cfif>
<!---check to see if file has been submited--->
<cfif len(form.File) is 0>
<cfset ArrayAppend(add.Msg,"you haven't selected a file")>
</cfif>
<!---if there are no errors try to upload file to temp--->
<cfif ArrayLen (add.Msg) is 0>
<cftry>
<cffile action="upload" nameconflict="makeunique" destination="#GetTempDirectory()#" filefield="File">
<!---check file size--->
<cfif (CFFILE.FileSize GT (100 * 1024))>
<cfset ArrayAppend(add.Msg,"#CFFILE.FileSize#you can not upload files bigger than 1MB")>
<!---try to delete the file--->
<cftry>
<cffile action="delete" file="#CFFILE.ServerDirectory#\#CFFILE.ServerFile#">
<cfcatch>
<!--we dan catch an error , though it would crash the page-->
</cfcatch>
</cftry>
</cfif>
<!---check file extension with aditional layer of protection for just in case--->
<cfif not ListFindnoCase("jpg,jpeg,png,gif",CFFILE.ServerFileExt)
or not isImageFile("#GetTempDirectory()##CFFILE.ServerFile#")>
<cfset ArrayAppend(add.Msg,"#CFFILE.ServerFileExt#you can only upload jpg,png or gif images.")>
<!---try to delete the file--->
<cftry>
<cffile action="delete" file="#CFFILE.ServerDirectory#\#CFFILE.ServerFile#">
<cfcatch>
<!--again we can catch an error, though it would crash the page-->
</cfcatch>
</cftry>
</cfif>
<cfcatch>
<!--if there was an error we could log it, though that would crash the page-->
</cfcatch>
</cftry>
</cfif>
<cfif ArrayLen (add.Msg) is 0>
<cfset ArrayAppend(add.Msg,"#CFFILE.ServerFile# - yay! success")>
</cfif>
<cfreturn serializeJSON(add.Msg)>
</cffunction>
正如您所看到的，这是一个应该有效的简单验证，并且正如我昨晚提到的那样有效。现在我遇到了文件大小和文件格式验证的问题。也就是说，无论我尝试什么，它都会返回大于 1M 的文件并且它不是正确的类型，即使我选择 300kb 文件、jpg 或 png 也是如此。如您所见，我在错误消息和文件中添加了#CFFILE.FileSize# 和#CFFILE.ServerFileExt#，它的大小小于1MB，并且类型正确。那么，WTF在这里进行吗？如果您对如何解决此问题或如何改进我的代码有任何建议，我将非常感谢您对此提供的帮助。
编辑
这是一个测试客户端代码
$(document).ready(function(){
var options = {
beforeSend: function() { /* something will go here */ },
uploadProgress: function(event, position, total, percentComplete) { /* maybe in here */ },
success: function(data)
{
/*test */
/*alert(data);
return false;*/
},
complete: function(response)
{
/* test */
alert(response.responseText);
return false;
},
error: function(error)
{
/*alert('error');
return false;*/
}
};
$("#JqAjaxForm").ajaxForm(options);
});
和形式
<form id="JqAjaxForm" action="cfc/tests.cfc?method=test" method="post" enctype="multipart/form-data">