微信扫码支付--xml解析

/**

* 解析xml,返回第一级元素键值对。如果第一级元素有子节点，则此节点的值是子节点的xml数据。

* @param strxml

* @return

* @throws JDOMException

* @throws IOException

*/

public static Map doXMLParse(String strxml) throws JDOMException, IOException {

strxml = strxml.replaceFirst("encoding=\".*\"", "encoding=\"UTF-8\"");

 

if(null == strxml || "".equals(strxml)) {

return null;

}

 

Map m = new HashMap();

 

InputStream in = new ByteArrayInputStream(strxml.getBytes("UTF-8"));

SAXBuilder builder = new SAXBuilder();

Document doc = builder.build(in);

Element root = doc.getRootElement();

List list = root.getChildren();

Iterator it = list.iterator();

while(it.hasNext()) {

Element e = (Element) it.next();

String k = e.getName();

String v = "";

List children = e.getChildren();

if(children.isEmpty()) {

v = e.getTextNormalize();

} else {

v = XMLUtil.getChildrenText(children);

}

 

m.put(k, v);

}

 

//关闭流

in.close();

 

return m;

}

 

 

/**

* 获取子结点的xml

* @param children

* @return String

*/

public static String getChildrenText(List children) {

StringBuffer sb = new StringBuffer();

if(!children.isEmpty()) {

Iterator it = children.iterator();

while(it.hasNext()) {

Element e = (Element) it.next();

String name = e.getName();

String value = e.getTextNormalize();

List list = e.getChildren();

sb.append("<" + name + ">");

if(!list.isEmpty()) {

sb.append(XMLUtil.getChildrenText(list));

}

sb.append(value);

sb.append("</" + name + ">");

}

}

 

return sb.toString();

}

 

/**

* 获取xml编码字符集

* @param strxml

* @return

* @throws IOException 

* @throws JDOMException 

*/

public static String getXMLEncoding(String strxml) throws JDOMException, IOException {

InputStream in = HttpClientUtil.String2Inputstream(strxml);

SAXBuilder builder = new SAXBuilder();

Document doc = builder.build(in);

in.close();

return (String)doc.getProperty("encoding");

}

 

public static String buildXmlString(Map<String, String> map){

StringBuilder requestXml=new StringBuilder("<xml>");

Set es=map.entrySet();

Iterator it=es.iterator();

while(it.hasNext()){

Map.Entry<String, String> entry=(Entry<String, String>) it.next();

requestXml.append("<"+entry.getKey()+">"+entry.getValue()+"</"+entry.getKey()+">");

}

requestXml.append("</xml>");

return requestXml.toString();

}

 

}