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Jsp and Apache commons upload

 
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Good evening,
I hope there is someone in this Forum who can help me. I'm trying this -Using FileUpload- tutorial since yesterday, which explains how to use the Apache-Commons-fileupload-API. Unfortunately after doing everything as described by the tutorial i get a blank page to see. This is my servlet-code:

Before you start telling me its the web.xml that is configured wrongly, i tell you that commenting out things like this:

prints the outer out-println. So it has something to do with . But i don't know exactly what goes wrong when the server executes that line of code. Any hints strongly appreciated. Ah, of course this is the corresponding html-file.

As you can see the enctype is set, as is the file-type.
 
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Anything in the logs?
 
frank braunstein
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Hold everything. In the tutorial's first paragraph "Using FileUpload" the author has mentioned some dependencies with Apache's commons-IO library. After adding this library to my classpath it seems to work, but i still cant iterate over the request's item's. But the topics question is resolved.

UPDATE:
The step above actually solved the problem and a exclamation mark in the if statement.

 
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