3/14/08

using Class.getResource() load resource file in Eclipse

There are many ways to load resource file in java app. What sun recommended is using Class.getResource("resource_name") or Class.getResourceAsStream("resource_name") then you will get URL and InputStream respectively. If resource_name is specified without "/", it will be prepend with Class package. So resource file must be in same place[folder structure] as the Class. What I love to do is call getResource() with "/" and put resource file at the root of package. This way i can have separate resource folder. below is in Eclipse,

1. From Package explorer right click src folder->click import
2. In import dialog, Choose General->File System ->next
3. from directory:->Browse to your resource folder.
4. to folder:-> I add "resource" as a folder name under src folder. then click "Finish".

In the code, load resource with

this.getClass().getResource("/resource/buttons1.png")
or
this.getClass().getResourceAsStream("/resource/TX_Jello2.ttf")

36 comments:

Anonymous said...

Thanks. I was wondering how to best use getClass().getResource with Eclipse, your post really helped me.

Айрат said...

thanks a lot! very usefull post
you've saved my time ;)

Anonymous said...

I was going crazy with this path-to-resource problem. Thanks for the post!

Anonymous said...

I spent 2 and a half days debugging and testing, until I read your post, now the code is working properly. Thank you very much!

Anonymous said...

Thanks a lot, that was really useful. This post should be the first when searching for "eclipse getResource" on Google!

Christopher Clarke said...

Thank You Thank You Thank You!! This has been urking me for the last couple of days. Thank you!

Anonymous said...

Many thanks! Short and sweet

Paul said...

Thank you. This helped me resolve a problem I was having on a project at work.

Waruna said...

thanx

Anonymous said...

Thank you very much for this information! You really saved me a lot of time.

Djamel said...

Hi man thanks lotof your post saved 3 days of work ;)

Andy said...

Great post, thank you.

Sebastian said...

Lovely post, works like a charm.
Could you maybe explain the difference to the ClassLoader.getSystemResource(..) function? I could not find comprehensive help on this topic and it looks like resource loading is a very often encountered problem.

olushola said...

thanks, good post

Feross said...

Thank you very much! This helped me out!

Emerald214 said...

It works but when compiling, the images are copied to bin folder.

andcoder said...

worked fine.. thanks

Anonymous said...

I have noticed the following problem with getRessourceAsStream(): for every call, the jar il loaded again. This can be very annoying, especially when the jar il loaded over a slow connection.

rafael said...

Thx a lot dude, that's exactly what I was looking for.

kimberly said...

When I bought my computer and I didn´t know how to use java graphics, so I decided looking for information in a webside and I found an useful information that helped me a lot.. Now I am interested in to do the best investment and I found a webside very useful and interesting called costa rica investment opportunities , I think it´s a very wonderful site.

Anonymous said...

Thanks, do you know how to write to an external file when the jar is run?

Anonymous said...

Surely the title should be using Class.getResource() load resource file in Java.... you're code isn't anything to do with the IDE

Raja SP said...

ahh! Thats an extremely usefull nugget.

Anonymous said...

thanks, but what this has to do with Eclipse? This is Java coding anyway!

Joscha said...

Great, thanks!

Anonymous said...

thanks!!

mask said...

Thanx a lot....was going crazy on this topic!!

Anonymous said...

Thank you, this helped me a lot!

Anonymous said...

Hello,

Could you please explain me how to copy a resource to a directory in the computer?

thank you!

Anonymous said...

Thanks a lot dude,seriously ur post helped a lot.

Anonymous said...

How come 2000 people just repeat what the javadoc already says, while you add the USEABLE bit of information? thanks a lot! your post should be WAY higher in Google rankings.

Anonymous said...

Please tell me pros and cons to put /resource directory in /src or in / where are /libs and /src directories?

rakendu said...

I used this but I am geting a nullpointerexception. Could you please help. I am using JSF

rakendu said...

I used this but I am geting a nullpointerexception. Could you please help. I am using JSF

rakendu said...

I used this but I am geting a nullpointerexception. Could you please help. I am using JSF

Hikari said...

Very nice tip.

Instead of using "/resource/filename" I'd put files in my main pachage folder, and just use a class in there to call getResource().

This way we avoid conflicts with other libs!