Java杂项

• 输出Exception时，要用System.out.println(ex);或者ex.printStackTrace();
  • System.out.println(ex.getStackTrace());不行，输出的仅仅是类名，因为没有自行实现ToString()？
• 获取真实路径
  • ClassLoader classLoader = MethodHandles.lookup().getClass().getClassLoader();
  • PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver(classLoader);
  • resolver.getResources(“classpath:/” + relativePath);