Every MIME type, listed in one convenient table. Suffixes applicable, Media type and subtype(s).3dm, x-world/x-3dmf.3dmf, x-world/x-3dmf. MimeType – an actual MIME type holder – and tion. MimetypesFileTypeMap – class whose instance can resolve MIME type as String for a file. setDataHandler(new DataHandler(new ByteArrayDataSource(s, mimetype))); } catch At this point the datasource is actually a {@link ByteArrayDataSource}.

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In the real world, the one where you need TL,DR section, you should find the library with most stars next to it’s name and use it. The implementation in this class calls getContentType f.

I tried several ways to do it, including the first ones said by Joshua Fox. Frakcool 7, 5 25 Lee Theobald 4, 11 40 Look the complete test code Java hype Thanks for your answer. So, if you want to generalize, you’ll need to go beyond the built-in libraries, using, e. Again, vanilla implementation of this the one that comes with JDK leaves a lot to be desired.

Java Examples for javax.mail.util.ByteArrayDataSource

For the record, I’m going to respectfully disagree. And for those needing to use this solution within Android, you can simply bytdarraydatasource the following in the build. It’s successfully working for me.


Not at all, maybe they have an earlier version of JDK: This does not work with a stream or a byte array, etc. A major limitation with this is that the file must exist on the file system.

Java Code Examples of rayDataSource

With Apache Tika you need only three lines of code: And now, the long read: Most interesting classes are javax. So far I’ve tried mims utils: However, you have this: Tika should be the answer now. This is the simplest way I found for doing this: Ofcourse its light too: Vazgen Torosyan 6 Apache Tika offers in bytfarraydatasource a mime type detection based based on magic markers in the stream prefix. I tested with ‘webm’ and it returned null.

I don’t know if I’m just doing something horribly wrong, but that seems rather bytearraydatxsource. Whoever down-voted the answer, please add a comment so I and others may learn to post better answers.

That is why probeContentType method throws IOException, in case an implementation of this API uses Path provided to it to actually try to open the file associated with it.

JavaMail API documentation

Tyle API definition provides for facilities that support either for determining file mime type from file name or from file content magic bytes. To fetch mime type for a file, you would simply use Files and do this in your code:. Ovidiu Buligan 1, 18 It was not my system so I didn’t check the JRE or windows version. I’m running on OS X I’ve published my SimpleMagic Java package which allows content-type mime-type determination from files and byte arrays. FileTypeDetectoryou would drop in the preferred implementing library’s jar file into your classpath and that would be it.


See the apidocs for more information. It was windows 7 or 8 probably with oracle JRE for java 7. Siva Prasad Reddy 5, 5 45 The documentation of mime-util is not very clear about how to instantiate the utility class. To fetch mime type for a file, you would simply use Files and do this in your code: This will work, but is IMO a bad practice as it ties your code to a specific OS and requires the external utility to be present at the system running it.