java組裝xml和解析xml(jdom使用)
阿新 • • 發佈：2019-01-04
場景:將一張表一條記錄資料組裝成標準XML,將標準XML解析放入HashMap中
1.組裝XML
/** 組裝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("入參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.測試方法
/**測試*/ public static void main(String []args){ logger.info("測試開始....."); Map<String, Object> mapInfo = new HashMap<String, Object>(); mapInfo.put("CITY_NAME", "廈門"); 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", "閩D"); mapInfo.put("CITY_DESCRIBE", "適合居住的城市."); String rtn = formatDataToXml(mapInfo); Map<String, String> info = parseXml(rtn,"N"); logger.info("解析資訊:" + info.toString()); logger.info(rtn); logger.info("測試結束....."); }
4.建表語句
CREATE TABLE `t_city` (
`CITY_NAME` VARCHAR(64) COLLATE utf8_bin NOT NULL COMMENT '城市名',
`LAND_AREA` DOUBLE DEFAULT NULL COMMENT '城市面積',
`POPULATION` BIGINT(16) DEFAULT NULL COMMENT '城市人口',
`GROSS` DOUBLE DEFAULT NULL COMMENT '生產總值',
`AREA_NUMBER` VARCHAR(64) COLLATE utf8_bin DEFAULT NULL COMMENT '行政區劃程式碼',
`POSTAL_CODE` VARCHAR(64) COLLATE utf8_bin DEFAULT NULL COMMENT '郵政編碼',
`TELEPHONE_CODE` VARCHAR(64) COLLATE utf8_bin DEFAULT NULL COMMENT '電話區號',
`CAR_CODE` VARCHAR(64) COLLATE utf8_bin DEFAULT NULL COMMENT '車牌程式碼',
`CITY_DESCRIBE` VARCHAR(512) COLLATE utf8_bin DEFAULT NULL COMMENT '城市描述'
) ENGINE=INNODB DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='城市資訊表'
5.資料模板
<?xml version="1.0" encoding="UTF-8"?>
<DATASET>
<ROW>
<C N="CAR_CODE">閩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">廈門</C>
<C N="CITY_DESCRIBE">適合居住的城市.</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
下載地址: http://www.jdom.org/downloads/index.html
7.完整類
public class OperateXmlUtils {
private static Logger logger = LoggerFactory.getLogger(OperateXmlUtils.class);
/** 組裝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("入參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;
}
/**測試*/
public static void main(String []args){
logger.info("測試開始.....");
Map<String, Object> mapInfo = new HashMap<String, Object>();
mapInfo.put("CITY_NAME", "廈門");
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", "閩D");
mapInfo.put("CITY_DESCRIBE", "適合居住的城市.");
String rtn = formatDataToXml(mapInfo);
Map<String, String> info = parseXml(rtn,"N");
logger.info("解析資訊:" + info.toString());
logger.info(rtn);
logger.info("測試結束.....");
}
}
以上,TKS