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 block
   e.printStackTrace();
   return null;
  }
 }