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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By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is bytearraydatasoutce to these policies. Apache Tika offers in tika-core a mime type detection based based on magic markers in the stream prefix.

Java Examples for javax.mail.util.ByteArrayDataSource

You only need this function public static String getContentType byte[] data, String name It probes the first bytes of the content and returns the content types based on that content and not by file extension. Byteareaydatasource 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.

Joshua Fox 7, 9 50 To chip byfearraydatasource with my 5 cents: In some ideal world in a galaxy far, far away, all these libraries which try to solve this file-to-mime-type problem would simply implement java. Create file named ‘mime. For the record, I’m going to respectfully disagree. I’m running byteartaydatasource OS X It seemed that on windows Files. First you can check for the mimeType and validate it.

JavaMail API documentation

Sign up using Email and Password. So, if you want to generalize, you’ll need to go beyond the built-in libraries, using, e. Sign up or log in Sign up using Google. Worked for the simple, popular, and few file types I needed: It probes the first bytes of the content and returns the content types based on that content and not by file extension.

I have had a problem with software working on ubuntu but failing on windows. Unfortunately, as the javadoc for getContentType File states: Tested it on multiple image files. Stack Overflow works best with JavaScript enabled. Let context and the programmer make that decision.

Howerver, URLConnection has a very limited set of content types that it does recognizes. Not every Java program is required to be portable. And bytearraydatasourec, the long read: And for those needing to use this solution within Android, you can simply include the following in the build.

Please note that MediaType. This is a great solution! AhmadReza 6 Email Required, but never shown. Siva Prasad Reddy 5, 5 45 thpe More hints are provided at https: It doesn’t work for csv. Chris Mowforth 5, 2 16 The first gave me memory exceptions, the second doesn’t close its streams off properly.

ByteArrayDataSource (Java(TM) EE 7 Specification APIs)

If you’re an Android developer, you can use a utility class android. I think you mean new Mmime. This is useless if the file has a missing or wrong extension. First of all, MIME types list is hugesee here: It only leaves it locked because you’ve left yourself no way to close it. I don’t know if I’m just doing something horribly wrong, but that seems rather terrible.

I didn’t vote you down butgetFileNameMap doesn’t work for many basic file typesfor example ‘bmp’. For this particular case, I don’t need one yet. As of Java 7, html, pdf and jpeg extensions return the correct mime-type but js and css return null!

In Java 7 you can now just use Files. Following code snippet may help you.

For exmaple if name is test.