ColdFusion：上传的文件中没有收到数据 [英] ColdFusion: No data was received in the uploaded file

问题描述

我的错误报告告诉我，当用户尝试将空文件上传到我的服务器时发生错误（不要问为什么用户这样做 - 我不知道），现在我想捕获该异常说在上传的文件中没有收到数据。我想知道是否有一个比在< CFFILE action =upload> 周围放置< CFTRY> $ c>像这样：

My error report told me that an error has occurred when an user tried uploading an empty file to my server (don't ask why the user did that - I don't know) and now I want to catch that exception which said "No data was received in the uploaded file". I wonder if there is a better way than putting a <CFTRY> around the <CFFILE action="upload"> like this:

<CFTRY>
  <CFFILE action="upload" destination="#expandpath("upload")#" filefield="form.file" nameconflict="makeunique" />
  <CFCATCH>
    <!--- handle that error --->
  </CFCATCH>
</CFTRY>

推荐答案

Try / Catch是我通常处理它的方式。

Try/Catch is the way I usually handle it.

<cftry>
    <cffile action="upload" ...>

    <cfcatch type="any">
        <cfif Find("Saving empty (zero-length) files is prohibited", CFCatch.Detail) GT 0>

            <!--- Create a zero length file on disk and continue processing as usual --->
            <cffile action="write" file="..." output="">
        <cfelse>
            <cfrethrow>
        </cfif>
    </cfcatch>
</cftry>

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