如何以编程方式从spring应用程序中获取.key文件的路径？

import java.io.File;

public class KeyFileUtil {
    public static String getKeyFilePath() {
        // 获取.class文件的路径
        String classPath = KeyFileUtil.class.getProtectionDomain().getCodeSource().getLocation().getPath();
        try {
            // 将.class文件的路径转换为绝对路径
            String absolutePath = new File(classPath).getCanonicalPath();
            
            // 根据绝对路径获取.key文件的路径
            String keyFilePath = absolutePath.replace(".class", ".key");
            
            return keyFilePath;
        } catch (Exception e) {
            e.printStackTrace();
        }
        
        return null;
    }
}

public class Main {
    public static void main(String[] args) {
        String keyFilePath = KeyFileUtil.getKeyFilePath();
        System.out.println("Key file path: " + keyFilePath);
    }
}