How to get resources directory path programmatically

Question

I have the following directory layout:

• src
  • main
    
    • java
    • resources
      
      • sql (scripts for database)
      • spring (configuration)
    • webapp

Within a ServletContextListener class, I want to access the files under the SQL directory and list them. Basically my problem is with the path, because I know that listing files under a directory in a nutshell is:

File folder = new File(path); File[] listOfFiles = folder.listFiles(); 

Maybe I could use the ServletContextEvent Object to try and build a path to resources/sql

public void contextInitialized(ServletContextEvent event) {     event.getServletContext(); //(getRealPath etc.) } 

Does something exist to set that path in a relative, non-hardcoded way? Something like new File("classpath:sql") (preferably spring if possible) or what should I do with the servletContext to point at resources/sql?

Answer 1

I'm assuming the contents of src/main/resources/ is copied to WEB-INF/classes/ inside your .war at build time. If that is the case you can just do (substituting real values for the classname and the path being loaded).

URL sqlScriptUrl = MyServletContextListener.class                        .getClassLoader().getResource("sql/script.sql"); 

Answer 2

Finally, this is what I did:

private File getFileFromURL() {     URL url = this.getClass().getClassLoader().getResource("/sql");     File file = null;     try {         file = new File(url.toURI());     } catch (URISyntaxException e) {         file = new File(url.getPath());     } finally {         return file;     } } 

...

File folder = getFileFromURL(); File[] listOfFiles = folder.listFiles();