java中XPATH操作xml，非常便捷

<?xml version="1.0" encoding="UTF-8"?>
<MessageList><item type="1"><template_id value="p2ItJPj0taTTP4QRXP-z51nYuD3aDNhgvLOusWGY4p0"/><topcolor value="#173177"/><first value="您好，您的信用卡收到1000元汇款。"  color="#173177"/><productType value="帐号类型：信用卡\n尾号：1758 4545" color="#173177"/><time value="2013年9月30日 17:58" color="#173177"/><type value="收款" color="#173177"/><number value="1000元" color="#173177"/><remark value="备注：如有疑问，请拨打咨询热线123323。" color="#173177"/></item><item type="2"><template_id value="p2ItJPj0taTTP4QRXP-z51nYuD3aDNhgvLOusWGY4p0"/><topcolor value="#173177"/><first value="您好，测试type=2的微信推送。"  color="#173177"/><productType value="帐号类型：信用卡\n尾号：1758 4545" color="#173177"/><time value="2013年9月30日 17:58" color="#173177"/><type value="收款" color="#173177"/><number value="1000元" color="#173177"/><remark value="备注：如有疑问，请拨打咨询热线123323。" color="#173177"/></item>
</MessageList>

/*** @throws DocumentException* @Title: getBuySuccessTemplate* @Date: 2015-3-23* @Autor: gavin* @Description: TODO(推送到微信端购买成功信息)* @param @param template_id 设定文件* @return void 返回类型* @throws*/private String getTemplateJson(int type) {try {StringBuffer templateJson = new StringBuffer();String path = this.getClass().getResource("/").getPath();String xmlPath = path + File.separator + "config" + File.separator+ "spring" + File.separator + "send-message.xml";LogUtils.writeLog(xmlPath);File xmlFile = new File(xmlPath);SAXReader reader = new SAXReader();Document doc = reader.read(xmlFile);Element childs = (Element) doc.selectSingleNode("//MessageList//item[@type='" + type + "']");Element template_idEle = (Element) doc.selectSingleNode("//MessageList//item[@type='" + type+ "']//template_id");Element topcolorEle = (Element) doc.selectSingleNode("//MessageList//item[@type='" + type+ "']//topcolor");List<Element> childList = childs.elements();templateJson.append(getTemplateCommon(template_idEle.attributeValue("value"),topcolorEle.attributeValue("value")));for (Element child : childList) {if (!child.getName().equals("template_id") && !child.getName().equals("topcolor")) {templateJson.append("\"" + child.getName() + "\":{\"value\":\""+ child.attributeValue("value") + "\",\"color\":\""+ child.attributeValue("color") + "\"},");}}templateJson.append("}}");return templateJson.toString().replace(",}}", "}}");} catch (DocumentException e) {// TODO Auto-generated catch blocke.printStackTrace();return null;}}