docs: public static URL toUrlForHttp(String urlStr, URLStreamHandler handler) {
  		Assert.notBlank(urlStr, "Url is blank !");
  		// 去掉url中的空白符，防止空白符导致的异常
  		urlStr = StrUtil.cleanBlank(urlStr);
  		return URLUtil.url(urlStr, handler);
  	}