Using resources inside a jar from war module

Question

I'm having a jar file say toolkit.jar which contains resource files under com.project.resources. When I tested independently I can read those resources with Class.getResource. But when I used the jar file in war module (web service), getResource always returns null. How can I access those resource file?

com/project/resources/ contains arial.ttf
com/project/toolkit/ contains ToolKit.java

renderer is ITextRenderer object.

renderer.getFontResolver().addFont(this.getClass().getResource("../resources/arial.ttf").
    toString(), BaseFont.IDENTITY_H, BaseFont.EMBEDDED);

And this toolkit.jar is using in a web service.

A previous post should help you http://stackoverflow.com/questions/20389255/java-reading-a-resource-file-from-within-jar .... if it does not work use ClassLoader instance to getResource — AurA, Jun 11 '14 at 06:17
Show us the actual code using getResource(), and tell us precisely what is null. — JB Nizet, Jun 11 '14 at 06:22
@AurA ClassLoader gives the tomcat bin path which is not what I really need. — N K, Jun 11 '14 at 06:23

score -1 · Answer 1 · answered Jun 11 '14 at 06:27

-1

Use getResourceAsStream() instead of getResource

InputStream in =
new InputStreamReader(FileLoader.class.getClassLoader().getResourceAsStream("file.txt") );

If its doesn't work

The best way to look to a config file from a webapp is to implement the servlet method init(). Let’ try using the same code

InputStream in =
new InputStreamReader(FileLoaderServlet.class.getClassLoader().getResourceAsStream("file.txt") );

Refer https://haveacafe.wordpress.com/2008/10/19/how-to-read-a-file-from-jar-and-war-files-java-and-webapp-archive/

answered Jun 11 '14 at 06:27

ask4solutions

187
9

Can you please clarify the `FileLoader`? – N K Jun 11 '14 at 06:33
FileLoader is just a class name - its a filename you want to access – ask4solutions Jun 11 '14 at 06:38
Then it's same as what I did. – N K Jun 11 '14 at 06:53
have you refereed this link https://haveacafe.wordpress.com/2008/10/19/how-to-read-a-file-from-jar-and-war-files-java-and-webapp-archive/ – ask4solutions Jun 11 '14 at 06:58
Yes, I did. Nothing +ve – N K Jun 11 '14 at 07:02
have you used getResourceAsStream() instead of getResource – ask4solutions Jun 11 '14 at 07:05
class.getClassLoader() always starts from lib directory of apache tomcat. So this will search files in the same path – N K Jun 11 '14 at 07:11
InputStream in = getClass().getResourceAsStream("/file.txt")); BufferredReader reader = new BufferedReader(new InputStreamReader(in)); – ask4solutions Jun 11 '14 at 07:46

Using resources inside a jar from war module

1 Answers1