Many of us don’t have the luxury of dedicated servers and have to live with a shared host. Since hosts often limit some CF tags for security reasons, this appears to limit what we can do in CF. This question has come up a number of times in the forums so I put together an example of how to handle file uploads without CFFILE.
The following code block displays a very short form that allows a user to uploda a file. Once the file is uploaded it reads it in line by line and calls a function on each line. While all I do is output the file line by line to the client, the function could just as easily parse out the line and insert to a database.
s = "";
cls = s.getClass();
stringClass = cls.forName("java.lang.String");
fileReaderClass = cls.forName("java.io.FileReader");
a = arrayNew(1);
a[1] = stringClass;
fileReaderConst = fileReaderClass.getConstructor(a);
a[1] = form.upFile;
fileReader = fileReaderConst.newInstance(a);
readerClass = cls.forName("java.io.Reader");
a[1] = readerClass;
bufferedReaderClass = cls.forName("java.io.BufferedReader");
bufferedReaderConst = bufferedReaderClass.getConstructor(a);
a[1] = fileReader;
bufferedReader = bufferedReaderConst.newInstance(a);
try {
do {
s = bufferedReader.readLine();
processLine(s);
} while (true);
} catch (coldfusion.runtime.UndefinedVariableException e) {
// this indicates end of file, ok to ignore error
}
#arguments.line##chr(13)##chr(10)#
If you’re interested in following the webforums thread you can view it here.
Of course this is CFMX only since it takes advantage of the fact that CFML compiles down to Java. I originally picked the technique up from Matt Liotta’s post on the CFCDev mailing list.
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