本文共 1337 字，大约阅读时间需要 4 分钟。

public static String toStringFromDoc(Document document) {		String result = null;		if (document != null) {			StringWriter strWtr = new StringWriter();			StreamResult strResult = new StreamResult(strWtr);			TransformerFactory tfac = TransformerFactory.newInstance();			try {				javax.xml.transform.Transformer t = tfac.newTransformer();				t.setOutputProperty(OutputKeys.ENCODING, "UTF-16");				t.setOutputProperty(OutputKeys.INDENT, "yes");				t.setOutputProperty(OutputKeys.METHOD, "xml"); // xml, html,				// text				t.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");				t.transform(new DOMSource(document.getDocumentElement()), strResult);			} catch (Exception e) {				System.err.println("XML.toString(Document): " + e);			}			result = strResult.getWriter().toString();			try {				strWtr.close();			} catch (IOException e) {				e.printStackTrace();			}		}		return result;	}

public static void main(String[] args) {		URL url = ImitateService.class.getClassLoader().getResource("/In.xml");		String file = url.getFile();		DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();		try {			DocumentBuilder db = dbf.newDocumentBuilder();			Document doc = db.parse(file);			String xml = toStringFromDoc(doc);			LogUtil.info(xml);		} catch (Exception e) {			e.printStackTrace();		}	}

没有依赖什么第三方的jar，都是jdk自带，引入包就行了。

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