讀取文件 以流的形式讀取文件 是可以讀取的到的
這樣就可以在打包后將文件進行讀取
Resource resource = new ClassPathResource("contract.xml");
InputStream inputStream=resource.getInputStream();
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document doc = builder.parse(inputStream);