CODEWITHSUNDEEP
javafileurljarclasspath
nucandrei
nucandrei

Reputation: 951

How to load resource from jar before outside file in Java?

I have the following problem: I try to load a file from jar but I have the same file outside situated at the same relative path: "res/rtrconfig" as the file in jar. How can I ignore the outside file and get the jar file path?. I can't delete the outside file because other parts of my code need it. What I've got until now:

ClassLoader loader = Thread.currentThread().getContextClassLoader();
        URL url = loader.getResource(path);
        //check if file is in jar or not
        if (url == null) {
            System.err.println("FATAL: Properties file not found.Stopping the server.");
            System.exit(-1);
        }
        if ( !url.getProtocol().equals("jar")){

            System.err.println("Properties found outside jars.Please delete " + url.getPath() + " and re-start the server");
            System.exit(-1);
        }

This part of code checks if the file is founded in jar or in path. I don't know how to configure URL to look after file in jar before file in path. Thanks for your time.

Upvotes: 0

Views: 579

Answers (2)

y-c
y-c

Reputation: 1

If you are using spring this will work to get the jar resource file from outside jar.

ClassPathResource resource = new ClassPathResource("schema/feed.xsd");

Upvotes: 0

Evgeniy Dorofeev
Evgeniy Dorofeev

Reputation: 136162

You can get all resources 

Enumeration<URL> urls = ClassLoader.getSystemClassLoader().getResources(path);

file URL will have "file" protocol

    while (urls.hasMoreElements()) {
        URL url = urls.nextElement();
        if (url.getProtocol().equals("file")) {
            ...
        }
    }

Upvotes: 1

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