单节点xml转map 和 map转xml

喜欢ヅ旅行 2022-05-16 01:52 332阅读 0赞

直接上代码

import org.dom4j.*;
    
    import javax.xml.parsers.DocumentBuilder;
    import javax.xml.parsers.DocumentBuilderFactory;
    import javax.xml.transform.OutputKeys;
    import javax.xml.transform.Transformer;
    import javax.xml.transform.TransformerFactory;
    import javax.xml.transform.dom.DOMSource;
    import javax.xml.transform.stream.StreamResult;
    import java.io.StringWriter;
    import java.util.HashMap;
    import java.util.List;
    import java.util.Map;
    
    /**
     * @Author: lilong
     * @Data: Created on 2018/8/28
     * @Desc:map和xml转换工具类
     */
    public class MapXmlTool {
        /**
         * xml  To  map
         * @throws Exception
         */
        public static Map<String, Object> xmlToMap(String responseXmlTemp) throws DocumentException {
            Document doc = DocumentHelper.parseText(responseXmlTemp);
            Element rootElement = doc.getRootElement();
            Map<String, Object> mapXml = new HashMap<>();
            elementToMap(mapXml, rootElement);
            return mapXml;
        }
    /**
    * @Author : lilong
    * @Description :使用递归调用将多层级xml转为map
    * @Date : 9:57 2018/8/28
    **/
        private static void elementToMap(Map<String, Object> map, Element rootElement) {
            // 获得当前节点的子节点
            List<Element> childElements = rootElement.elements();
            if (childElements.size() > 0) {
                Map<String, Object> tempMap = new HashMap<>();
                for (Element e : childElements) {
                    elementToMap(tempMap, e);
                    map.put(rootElement.getName(), tempMap);
                }
            } else {
                map.put(rootElement.getName(), rootElement.getText());
            }
        }
    
    
        /**
        * @Author : lilong
        * @Description :map 转 xml--不加防转译
        * @Date : 15:44 2018/12/24
        * @Param : map的key不能用纯数字 否则报错org.w3c.dom.DOMException: INVALID_CHARACTER_ERR: An invalid or illegal XML character is specified.
        **/
        public static String mapToXmlString(Map<String, String> map) throws Exception {
            DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
            DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
            org.w3c.dom.Document document = documentBuilder.newDocument();
            org.w3c.dom.Element element = document.createElement("xml");
            document.appendChild(element);
            for (String key : map.keySet()) {
                String value = map.get(key);
                if (value == null) {
                    value = "";
                }
                value = value.trim();
                org.w3c.dom.Element filed = document.createElement(key);
                filed.appendChild(document.createTextNode(value));
                element.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 write = new StringWriter();
            StreamResult result = new StreamResult(write);
            transformer.transform(source, result);
            String output = write.getBuffer().toString();.replaceAll("\n|\r", "");
            try {
                write.close();
            } catch (Exception e) {
    
            }
            return output;
        }
    
        /**
        * @Author : lilong
        * @Description :map转xml---加防转译
        * @Date : 10:20 2018/12/24
        **/
        public static String mapXmlString(Map<String, Object> map) {
            String xmlResult = "";
    
            StringBuffer sb = new StringBuffer();
            sb.append("<xml>");
            for (String key : map.keySet()) {
                String value = "<![CDATA[" + map.get(key) + "]]>";
                sb.append("<" + key + ">" + value + "</" + key + ">");
            }
            sb.append("</xml>");
            xmlResult = sb.toString();
            return xmlResult;
        }
    
    }