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}.

Author: Mazujind Mezishicage
Country: Chad
Language: English (Spanish)
Genre: Life
Published (Last): 3 December 2005
Pages: 39
PDF File Size: 11.57 Mb
ePub File Size: 10.88 Mb
ISBN: 391-3-59436-906-6
Downloads: 63409
Price: Free* [*Free Regsitration Required]
Uploader: Durisar

It only leaves it locked because you’ve left yourself no way to close it. Disconnecting the URLConnection would unlock it.

Vazgen Torosyan 6 Returns the MIME type of the file object. Howerver, URLConnection has a very limited set of content types that it does recognizes. For exmaple if name is test. This is useless if the mimr has a missing or wrong extension.

Java Examples for javax.mail.util.ByteArrayDataSource

However, as suggested by the comment above, the built-in table of mime-types is quite limited, not including, for example, MSWord and PDF. A good overview on available libraries is given at rgagnon. In its vanilla implementation this does not do much i. Sign up or log in Sign up using Google.


I like to use standard facilities provided by JDK first, and if that doesn’t work, I’ll go and look for something else. I tried several ways to do it, including the first ones said by Joshua Fox. Look the complete test code Java 7: It was not bytearraydataxource system so Bytearraydatasouce didn’t check the JRE or windows version.

Apache Tika offers in tika-core a mime type detection based based on magic markers in the stream prefix. The other answers below make light of many dependencies with Tika, but I see none with tika-core. The implementation in this class calls getContentType f. The solution I found, as also is said by Joshua Fox in a superficial way, is to use MimeUtil2like this: Example entries for png and js files would be: Ofcourse its light too: Tika should be the answer now.

Your awesome library handled it properly. A major limitation with this is that the file must exist on the file system. It doesn’t work for csv. First typs can check for the mimeType and validate it.

Java Examples for rayDataSource

I have had a problem with software working on ubuntu but failing on windows. Again, vanilla implementation of this the one that comes with JDK leaves a lot to be desired.

Second you should look to convert the first 4 bytes of your file to hexadecimal and then compare it with the magic numbers. Frakcool 7, 5 25 I didn’t vote you down butgetFileNameMap doesn’t work for many basic file typesfor example ‘bmp’.


Getting A File’s Mime Type In Java – Stack Overflow

bytearradyatasource It is better to use two layer validation for files upload. With SimpleMagic you can do something like: One bad thing about Bytearraydatasourcee, lots of dependency bloat. Thanks for the working solution. Sign up using Email and Password.

This is the simplest way I found for doing this: Tested it on multiple image files. 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.

So, if you want to generalize, you’ll need to go beyond the built-in libraries, using, e. All had extension renamed. I’ve published my SimpleMagic Java package which allows content-type mime-type determination from files and byte arrays.