java组装xml和解析xml(jdom使用)

场景:将一张表一条记录数据组装成标准XML,将标准XML解析放入HashMap中
1.组装XML

        /** 组装XML */
	public static String formatDataToXml(Map mapdData) {

		StringBuffer xml = new StringBuffer();
		xml.append("<?xml version=\"1.0\" encoding=\"UTF-8\" ?>");
		xml.append("<DATASET>");
		xml.append("<ROW>");
		if (mapdData != null) {
			Set<?> set = mapdData.entrySet();
			Iterator<?> iterator = set.iterator();
			while (iterator.hasNext()) {
				Map.Entry entry = (Map.Entry) iterator.next();
				xml.append("<C N=\"" + entry.getKey() + "\">"
						+ entry.getValue() + "</C>");
			}
		}
		xml.append("</ROW>");
		xml.append("</DATASET>");
		return xml.toString();
	}

2.解析XML

        /** 解析XML */
	public static Map<String, String> parseXml(String xmlData,String attrName) {
		logger.info("入参xml:" + xmlData);
		StringReader reader= new StringReader(xmlData);
		InputSource source = new InputSource(reader);  
		SAXBuilder saxbuilder = new SAXBuilder();  
		Map<String, String> map = new HashMap<String, String>();
		try {
			Document doc = saxbuilder.build(source);  
			Element root = doc.getRootElement();  
			List<Element> children = root.getChildren(); 
			for (Element e : children) {
				List<Element> row = e.getChildren();  
				for (Element r : row) {
					map.put(r.getAttributeValue(attrName),
							r.getText() == null ? "" : r.getText().trim());
				}
			}
		} catch (JDOMException | IOException e) {
			e.printStackTrace();
		}
		return map;
	}

3.测试方法

        /**测试*/
	public static void main(String []args){	
		logger.info("测试开始.....");
		Map<String, Object> mapInfo = new HashMap<String, Object>();
		mapInfo.put("CITY_NAME", "厦门");
		mapInfo.put("LAND_AREA", "1699.39");
		mapInfo.put("POPULATION", "401");
		mapInfo.put("GROSS", "4351.18");
		mapInfo.put("AREA_NUMBER", "350200");
		mapInfo.put("POSTAL_CODE", "361000");
		mapInfo.put("TELEPHONE_CODE", "0592");
		mapInfo.put("CAR_CODE", "闽D");
		mapInfo.put("CITY_DESCRIBE", "适合居住的城市.");
		String rtn = formatDataToXml(mapInfo);
		Map<String, String> info = parseXml(rtn,"N");
		logger.info("解析信息:" + info.toString());
		logger.info(rtn);
		logger.info("测试结束.....");
	}

4.建表语句

CREATE TABLE `t_city` (
  `CITY_NAME` VARCHAR(64) COLLATE utf8_bin NOT NULL COMMENT '城市名',
  `LAND_AREA` DOUBLE DEFAULT NULL COMMENT '城市面积',
  `POPULATION` BIGINT(16) DEFAULT NULL COMMENT '城市人口',
  `GROSS` DOUBLE DEFAULT NULL COMMENT '生产总值',
  `AREA_NUMBER` VARCHAR(64) COLLATE utf8_bin DEFAULT NULL COMMENT '行政区划代码',
  `POSTAL_CODE` VARCHAR(64) COLLATE utf8_bin DEFAULT NULL COMMENT '邮政编码',
  `TELEPHONE_CODE` VARCHAR(64) COLLATE utf8_bin DEFAULT NULL COMMENT '电话区号',
  `CAR_CODE` VARCHAR(64) COLLATE utf8_bin DEFAULT NULL COMMENT '车牌代码',
  `CITY_DESCRIBE` VARCHAR(512) COLLATE utf8_bin DEFAULT NULL COMMENT '城市描述'
) ENGINE=INNODB DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='城市信息表'

5.数据模板

<?xml version="1.0" encoding="UTF-8"?>
<DATASET>
  <ROW>
    <C N="CAR_CODE">闽D</C>
    <C N="AREA_NUMBER">350200</C>
    <C N="LAND_AREA">1699.39</C>
    <C N="TELEPHONE_CODE">0592</C>
    <C N="CITY_NAME">厦门</C>
    <C N="CITY_DESCRIBE">适合居住的城市.</C>
    <C N="POSTAL_CODE">361000</C>
    <C N="POPULATION">401</C>
    <C N="GROSS">4351.18</C>
  </ROW>
</DATASET>

6.jar包版本 
  jdom-2.0.6.jar
  下载地址: http://www.jdom.org/downloads/index.html
7.完整类

        public class OperateXmlUtils {

	private static Logger logger = LoggerFactory.getLogger(OperateXmlUtils.class);

	/** 组装XML */
	public static String formatDataToXml(Map mapdData) {

		StringBuffer xml = new StringBuffer();
		xml.append("<?xml version=\"1.0\" encoding=\"UTF-8\" ?>");
		xml.append("<DATASET>");
		xml.append("<ROW>");
		if (mapdData != null) {
			Set<?> set = mapdData.entrySet();
			Iterator<?> iterator = set.iterator();
			while (iterator.hasNext()) {
				Map.Entry entry = (Map.Entry) iterator.next();
				xml.append("<C N=\"" + entry.getKey() + "\">"
						+ entry.getValue() + "</C>");
			}
		}
		xml.append("</ROW>");
		xml.append("</DATASET>");
		return xml.toString();
	}

	/** 解析XML */
	public static Map<String, String> parseXml(String xmlData,String attrName) {
		logger.info("入参xml:" + xmlData);
		StringReader reader= new StringReader(xmlData);
		InputSource source = new InputSource(reader);  
		SAXBuilder saxbuilder = new SAXBuilder();  
		Map<String, String> map = new HashMap<String, String>();
		try {
			Document doc = saxbuilder.build(source);  
			Element root = doc.getRootElement();  
			List<Element> children = root.getChildren(); 
			for (Element e : children) {
				List<Element> row = e.getChildren();  
				for (Element r : row) {
					map.put(r.getAttributeValue(attrName),
							r.getText() == null ? "" : r.getText().trim());
				}
			}
		} catch (JDOMException | IOException e) {
			e.printStackTrace();
		}
		return map;
	}
	
	/**测试*/
	public static void main(String []args){	
		logger.info("测试开始.....");
		Map<String, Object> mapInfo = new HashMap<String, Object>();
		mapInfo.put("CITY_NAME", "厦门");
		mapInfo.put("LAND_AREA", "1699.39");
		mapInfo.put("POPULATION", "401");
		mapInfo.put("GROSS", "4351.18");
		mapInfo.put("AREA_NUMBER", "350200");
		mapInfo.put("POSTAL_CODE", "361000");
		mapInfo.put("TELEPHONE_CODE", "0592");
		mapInfo.put("CAR_CODE", "闽D");
		mapInfo.put("CITY_DESCRIBE", "适合居住的城市.");
		String rtn = formatDataToXml(mapInfo);
		Map<String, String> info = parseXml(rtn,"N");
		logger.info("解析信息:" + info.toString());
		logger.info(rtn);
		logger.info("测试结束.....");
	}
	
}

以上,TKS