docs: public static URL url(String url, URLStreamHandler handler) {
  		Assert.notNull(url, "URL must not be null");
  
  		// 兼容Spring的ClassPath路径
  		if (url.startsWith(CLASSPATH_URL_PREFIX)) {
  			url = url.substring(CLASSPATH_URL_PREFIX.length());
  			return ClassLoaderUtil.getClassLoader().getResource(url);
  		}
  
  		try {
  			return new URL(null, url, handler);
  		} catch (MalformedURLException e) {
  			// 尝试文件路径
  			try {
  				return new File(url).toURI().toURL();
  			} catch (MalformedURLException ex2) {
  				throw new UtilException(e);
  			}
  		}
  	}