我在读取 RSS 提要值（XML 格式）时收到此错误。
当 XML 文件中有纯文本值但有任何 HTML 元素时，它会成功获取标题和描述，即<p>, <HTML>, <image>. 等..在 XML 文件中，它不显示数据。
我正在使用这个URL 来获取 XML 数据。
我想使用 HTML 对象，即来自这个描述标签的 Img 标签。所以请让我知道我怎样才能得到这个？
这是代码：
ArrayList<HashMap<String, String>> business_List = new ArrayList<HashMap<String,String>>();
XMLParser parser = new XMLParser();
String xml = parser.getXmlFromUrl(URL);
Document doc = parser.getDomElement(xml); // getting DOM element
NodeList nl = doc.getElementsByTagName(KEY_ITEM);
// looping through all song nodes <song>
for(int i=0;i<nl.getLength();i++)
{
//creating new HashMap
HashMap<String, String> map = new HashMap<String, String>();
Element e = (Element) nl.item(i);
//adding each child node to HashMap key => value
//map.put(KEY_ID, parser.getValue(e, KEY_ID));
map.put(KEY_TITLE, parser.getValue(e, KEY_TITLE));
map.put(KEY_PUB_DATE, parser.getValue(e, KEY_PUB_DATE));
map.put(KEY_DESCRIPTION, parser.getValue(e, KEY_DESCRIPTION));
business_List.add(map);
}
list = (ListView)findViewById(R.id.list);
// Getting adapter by passing xml data ArrayList
adpater = new LazyAdapter(this, business_List);
list.setAdapter(adpater);
}
===== 这是我的xmlparserclass ===
public class XMLParser {
// constructor
public XMLParser() {
}
/**
* Getting XML from URL making HTTP request
* @param url string
* */
public String getXmlFromUrl(String url) {
String xml = null;
try {
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
xml = EntityUtils.toString(httpEntity);
System.out.println("XML...." + xml);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return xml;
}
/**
* Getting XML DOM element
* @param XML string
* */
public Document getDomElement(String xml){
Document doc = null;
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
try {
DocumentBuilder db = dbf.newDocumentBuilder();
InputSource is = new InputSource();
is.setCharacterStream(new StringReader(xml));
doc = db.parse(is);
} catch (ParserConfigurationException e) {
Log.e("Error: ", e.getMessage());
return null;
} catch (SAXException e) {
Log.e("Error: ", e.getMessage());
return null;
} catch (IOException e) {
Log.e("Error: ", e.getMessage());
return null;
}
return doc;
}
/** Getting node value
* @param elem element
*/
public final String getElementValue( Node elem ) {
Node child;
if( elem != null)
{
if (elem.hasChildNodes())
{
for( child = elem.getFirstChild(); child != null; child = child.getNextSibling())
{
if( child.getNodeType() == Node.TEXT_NODE )
{
return child.getNodeValue();
}
}
}
}
return "";
}
/**
* Getting node value
* @param Element node
* @param key string
* */
public String getValue(Element item, String str)
{
NodeList n = item.getElementsByTagName(str);
return this.getElementValue(n.item(0));
}
}