public static void write(Node node, Writer writer, String charset, int indent) {
		transform(new DOMSource(node), new StreamResult(writer), charset, indent);
	}
@Test
	@Disabled
	public void writeTest() {
		final String result = "<?xml version=\"1.0\" encoding=\"utf-8\" ?>"//
				+ "<returnsms>"//
				+ "<returnstatus>Success（成功）</returnstatus>"//
				+ "<message>ok</message>"//
				+ "<remainpoint>1490</remainpoint>"//
				+ "<taskID>885</taskID>"//
				+ "<successCounts>1</successCounts>"//
				+ "</returnsms>";
		final Document docResult = XmlUtil.parseXml(result);
		XmlUtil.toFile(docResult, "e:/aaa.xml", "utf-8");
	}