Java-map 转 xml

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        虽然也有xml的框架，比如Xstream，但是需要花一点时间去学习，这个源码可以临时应急，出成绩很快，日后花时间用框架或者工具类把代码规范。还是很不错的。

public static byte[] callMapToXML(Map map) {  
	logger.info("将Map转成Xml, Map：" + map.toString());  
	StringBuffer sb = new StringBuffer();  
	sb.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?><bizdata>");  
	mapToXMLTest2(map, sb);  
	sb.append("</bizdata>");  
	logger.info("将Map转成Xml, Xml：" + sb.toString());  
	try {  
		return sb.toString().getBytes("UTF-8");  
	} catch (Exception e) {  
		logger.error(e);  
	}  
	return null;  
}  
  
private static void mapToXMLTest2(Map map, StringBuffer sb) {  
	Set set = map.keySet();  
	for (Iterator it = set.iterator(); it.hasNext();) {  
		String key = (String) it.next();  
		Object value = map.get(key);  
		if (null == value)  
			value = "";  
		if (value.getClass().getName().equals("java.util.ArrayList")) {  
			ArrayList list = (ArrayList) map.get(key);  
			sb.append("<" + key + ">");  
			for (int i = 0; i < list.size(); i++) {  
				HashMap hm = (HashMap) list.get(i);  
				mapToXMLTest2(hm, sb);  
			}  
			sb.append("</" + key + ">");  
  
		} else {  
			if (value instanceof HashMap) {  
				sb.append("<" + key + ">");  
				mapToXMLTest2((HashMap) value, sb);  
				sb.append("</" + key + ">");  
			} else {  
				sb.append("<" + key + ">" + value + "</" + key + ">");  
			}  
  
		}  
  
	}  
} 

运行：

public static void main(String[] args) {  
	Map<String, Object> dataMap = new LinkedHashMap<String, Object>(); //默认  
	dataMap.put("rtnCode", "02");  
	dataMap.put("rtnMsg", "查询失败");  
	dataMap.put("idWltCloudDistrict", "专区id");  
          
	Map<String, Object> bizMap = new LinkedHashMap<String, Object>();  
	bizMap.put("serviceId", "serviceId001");  
	bizMap.put("data", dataMap);//data节点是一个map  
          
	Map<String, Object> objMap = new LinkedHashMap<String, Object>();  
	objMap.put("idWltCloudDistrict", "专区id");  
	objMap.put("districtName", "专区名称");  
	objMap.put("validateDateStart", "专区有效期开始");  
	objMap.put("validateDateEnd", "专区有效期结束");  
	objMap.put("status", "专区状态(00-待发布;01-销售中; 02-已下架;)");  
	objMap.put("partnerId", "合作伙伴id");  
	objMap.put("channelId", "渠道id");  
	objMap.put("areaId", "商圈专区id");  
	dataMap.putAll(objMap); //  
          
	List<Map<String, Object>> prodKindList1 = new ArrayList<Map<String, Object>>();  
	for(int i=1;i<=2;i++){  
		// 第二层  
		List<Map<String, Object>> prodKindList2 = new ArrayList<Map<String, Object>>();  
		for(int j=1;j<=2;j++){  
			Map<String, Object> prodKindObj2 = new LinkedHashMap<String, Object>();  
			prodKindObj2.put("idWltCloudProdKind", "类目ID");  
			prodKindObj2.put("prodKindName", "类目名称");  
			prodKindObj2.put("prodKindIdx", "类目序号");  
			Map<String, Object> prodKind2 = new LinkedHashMap<String, Object>();  
			prodKind2.put("prodKind", prodKindObj2);  
			prodKindList2.add(prodKind2);  
		}  
              
		//第一层  
		Map<String, Object> prodKindOjb1 = new LinkedHashMap<String, Object>();  
		prodKindOjb1.put("idWltCloudProdKind", "类目ID");  
		prodKindOjb1.put("prodKindName", "类目名称");  
		prodKindOjb1.put("prodKindIdx", "类目序号");  
		prodKindOjb1.put("prodKindList", prodKindList2);  
		Map<String, Object> prodKind1 = new LinkedHashMap<String, Object>();  
		prodKind1.put("prodKind", prodKindOjb1);  
		prodKindList1.add(prodKind1);  
	}  
          
		dataMap.put("prodKindList", prodKindList1);  
          
	XmlCommonUtil.callMapToXML(bizMap);  
}

实现：

<?xml version="1.0" encoding="utf-8"?>  
<bizdata>  
	<serviceId>serviceId001</serviceId>  
	<data>  
		<rtnCode>02</rtnCode>  
		<rtnMsg>查询失败</rtnMsg>  
		<idWltCloudDistrict>专区id</idWltCloudDistrict>  
		<districtName>专区名称</districtName>  
		<validateDateStart>专区有效期开始</validateDateStart>  
		<validateDateEnd>专区有效期结束</validateDateEnd>  
		<status>专区状态(00-待发布;01-销售中; 02-已下架;)</status>  
		<partnerId>合作伙伴id</partnerId>  
		<channelId>渠道id</channelId>  
		<areaId>商圈专区id</areaId>  
		<prodKindList>  
			<prodKind>  
				<idWltCloudProdKind>类目ID</idWltCloudProdKind>  
				<prodKindName>类目名称</prodKindName>  
				<prodKindIdx>类目序号</prodKindIdx>  
				<prodKindList>  
					<prodKind>  
						<idWltCloudProdKind>类目ID</idWltCloudProdKind>  
						<prodKindName>类目名称</prodKindName>  
						<prodKindIdx>类目序号</prodKindIdx>  
					</prodKind>  
					<prodKind>  
						<idWltCloudProdKind>类目ID</idWltCloudProdKind>  
						<prodKindName>类目名称</prodKindName>  
						<prodKindIdx>类目序号</prodKindIdx>  
					</prodKind>  
				</prodKindList>  
			</prodKind>  
			<prodKind>  
				<idWltCloudProdKind>类目ID</idWltCloudProdKind>  
				<prodKindName>类目名称</prodKindName>  
				<prodKindIdx>类目序号</prodKindIdx>  
				<prodKindList>  
					<prodKind>  
						<idWltCloudProdKind>类目ID</idWltCloudProdKind>  
						<prodKindName>类目名称</prodKindName>  
						<prodKindIdx>类目序号</prodKindIdx>  
					</prodKind>  
					<prodKind>  
						<idWltCloudProdKind>类目ID</idWltCloudProdKind>  
						<prodKindName>类目名称</prodKindName>  
						<prodKindIdx>类目序号</prodKindIdx>  
					</prodKind>  
				</prodKindList>  
			</prodKind>  
		</prodKindList>  
	</data>  
</bizdata>

 

转载于:https://my.oschina.net/NamiZone/blog/1573768