Java Spring - How to use classpath to specify a file location?

Question

How can I use the classpath to specify the location of a file that is within my Spring project?

This is what I have currently:

FileReader fr = new FileReader("C:\\Users\\Corey\\Desktop\\storedProcedures.sql"); 

This is hardcoded to my Desktop. What I would like is to be able to use the path to the file that is in my project.

FileReader fr = new FileReader("/src/main/resources/storedProcedures.sql"); 

Any suggestions?

Answer 1

Are we talking about standard java.io.FileReader? Won't work, but it's not hard without it.

/src/main/resources maven directory contents are placed in the root of your CLASSPATH, so you can simply retrieve it using:

InputStream is = getClass().getResourceAsStream("/storedProcedures.sql"); 

If the result is not null (resource not found), feel free to wrap it in a reader:

Reader reader = new InputStreamReader(is); 

Answer 2

From an answer of @NimChimpsky in similar question:

Resource resource = new ClassPathResource("storedProcedures.sql"); InputStream resourceInputStream = resource.getInputStream(); 

Using ClassPathResource and interface Resource. And make sure you are adding the resources directory correctly (adding /src/main/resources/ into the classpath).

Note that Resource have a method to get a java.io.File so you can also use:

Resource resource = new ClassPathResource("storedProcedures.sql"); FileReader fr = new FileReader(resource.getFile());