Map转xml格式字符串

灰太狼 2023-02-13 08:46 13阅读 0赞

这两种方式只能从Map<String,String>格式转为xml格式

### 第一种： ###

public static String mapToXml(Map<String, String> data) throws Exception { 
            DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
            DocumentBuilder documentBuilder= documentBuilderFactory.newDocumentBuilder();
            org.w3c.dom.Document document = documentBuilder.newDocument();
            org.w3c.dom.Element root = document.createElement("request"); //根节点
            document.appendChild(root);
            for (String key: data.keySet()) { 
                String value = data.get(key).toString();
                if (value == null) { 
                    value = "";
                }
                value = value.trim();
                org.w3c.dom.Element filed = document.createElement(key);
                filed.appendChild(document.createTextNode(value));
                root.appendChild(filed);
            }
            TransformerFactory tf = TransformerFactory.newInstance();
            Transformer transformer = tf.newTransformer();
            DOMSource source = new DOMSource(document);
            transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
            transformer.setOutputProperty(OutputKeys.INDENT, "yes");
            StringWriter writer = new StringWriter();
            StreamResult result = new StreamResult(writer);
            transformer.transform(source, result);
            String output = writer.getBuffer().toString(); //.replaceAll("\n|\r", "");
            try { 
                writer.close();
            }
            catch (Exception e) { 
                e.getMessage();
            }
            return output;
        }

### 第二种： ###

public static String mapToXml(Map<String, String> map) throws IOException { 
                     Document d = DocumentHelper.createDocument();
                     Element root = d.addElement("request"); //根节点
                     Set<String> keys = map.keySet();
                    for(String key:keys) { 
                             root.addElement(key).addText(String.valueOf(map.get(key)));
                         }
                     StringWriter sw = new StringWriter();
                     XMLWriter xw = new XMLWriter(sw);
                     xw.setEscapeText(false);
                     xw.write(d);
                     return sw.toString();
                 }