我有一个xml，我解析并从节点之间获取数据。但是这个数据被html标签包围。我创建另一个xml并将此数据放入其中。现在我必须再次解析它以获得正确的html语法。
请帮助。
public class XMLfunctions {
public final static Document XMLfromString(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) {
System.out.println("XML parse error: " + e.getMessage());
return null;
} catch (SAXException e) {
System.out.println("Wrong XML file structure: " + e.getMessage());
return null;
} catch (IOException e) {
System.out.println("I/O exeption: " + e.getMessage());
return null;
}
return doc;
}
/** Returns element value
* @param elem element (it is XML tag)
* @return Element value otherwise empty String
*/
public final static String getElementValue( Node elem ) {
Node kid;
if( elem != null){
if (elem.hasChildNodes()){
for( kid = elem.getFirstChild(); kid != null; kid = kid.getNextSibling() ){
if( kid.getNodeType() == Node.TEXT_NODE ){
return kid.getNodeValue();
}
}
}
}
return "";
}
/*Start Parsing Body */
public static String getBodyXML(String id){
String line = null;
try {
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost("http://192.168.1.44:9090/solr/core0/select/?q=content_id:"+id+"&version=2.2&start=0&rows=10&indent=on");
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
line = EntityUtils.toString(httpEntity);
} catch (UnsupportedEncodingException e) {
line = "<results status=\"error\"><msg>Can't connect to server</msg></results>";
} catch (MalformedURLException e) {
line = "<results status=\"error\"><msg>Can't connect to server</msg></results>";
} catch (IOException e) {
line = "<results status=\"error\"><msg>Can't connect to server</msg></results>";
}
String st= ParseXMLBodyNode(line,"doc");
return st;
}
public static String ParseXMLBodyNode(String str,String node){
String xmlRecords = str;
String results = "";
String[] result = new String [1];
StringBuffer sb = new StringBuffer();
StringBuffer text = new StringBuffer();
try {
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
InputSource is = new InputSource();
is.setCharacterStream(new StringReader(xmlRecords));
Document doc = db.parse(is);
NodeList indiatimes1 = doc.getElementsByTagName(node);
sb.append("<results count=");
sb.append("\"1\"");
sb.append(">\r\n");
for (int i = 0; i < indiatimes1.getLength(); i++) {
Node node1 = indiatimes1.item(i);
if (node1.getNodeType() == Node.ELEMENT_NODE) {
Element element = (Element) node1;
NodeList nodelist = element.getElementsByTagName("str");
Element element1 = (Element) nodelist.item(0);
NodeList title = element1.getChildNodes();
title.getLength();
for(int j=0; j<title.getLength();j++){
text.append(title.item(j).getNodeValue());
}
System.out.print((title.item(0)).getNodeValue());
sb.append("<result>");
sb.append("<news>");
String tmpText = html2text(text.toString());
//sb.append("<![CDATA[<body>");
sb.append(tmpText);
//sb.append("</body>]]>");
sb.append("</news>");
sb.append("</result>\r\n");
result[i] = title.item(0).getNodeValue();
}
}
sb.append("</results>");
} catch (Exception e) {
System.out.println("Exception........"+results );
e.printStackTrace();
}
return sb.toString();
}
public static String html2text(String html) {
String pText = Jsoup.clean(html, Whitelist.basic());
return pText;
}
启动流程的班级
public class NewsDetails extends ListActivity{
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.listplaceholder);
/*}
@Override
protected void onStart() {*/
super.onStart();
Intent myIntent = getIntent();
String id = myIntent.getStringExtra("content_id");
String title = myIntent.getStringExtra("title");
ArrayList<HashMap<String, String>> mylist = new ArrayList<HashMap<String, String>>();
String xml = XMLfunctions.getBodyXML(id);
Document doc = XMLfunctions.XMLfromString(xml);
int numResults = XMLfunctions.numResults(doc);
if((numResults <= 0)){
Toast.makeText(NewsDetails.this, "No Result Found", Toast.LENGTH_LONG).show();
finish();
}
NodeList nodes = doc.getElementsByTagName("result");
for (int i = 0; i < nodes.getLength(); i++) {
HashMap<String, String> map = new HashMap<String, String>();
map.put("title", title);
Element e = (Element)nodes.item(i);
map.put("news", XMLfunctions.getValue(e, "news"));
mylist.add(map);
}
ListAdapter adapter = new SimpleAdapter(this, mylist , R.layout.list_item, new String[] { "title", "news" }, new int[] { R.id.item_title, R.id.item_subtitle });
setListAdapter(adapter);
final ListView lv = getListView();
lv.setTextFilterEnabled(true);
}
从jsoup转换后得到的xml示例
<results count="1">
<result>
<news>
<ul><li><p>as part of its growth plan,</p></li><li><p>in a bid to achieve the target</p></li><li><p>it is pointed out that most of ccl's production came from opencast mines and only 2 mt from underground (ug) mines. ccl is now trying to increase the share underground production. the board of ccl has, thus, approved the introduction of continuous mine in chiru ug at a cost of about rs 145 crore to raise this mine's production from 2 mt to 8 mt per annum.</p></li><li><p>mr ritolia said that.</p></li></ul>
</news>
</result>
</results>
我想提取新闻标签之间的内容。这个xml被提供给XMLFunctions类中的XMLfromString（String xml）函数，然后只返回“＆lt;”剩下的身体就剩下了。
我无法使用html标签来提供格式化。
答案 0 :(得分：4)
一种选择是将XML CDATA部分用作：
<result>
<news><![CDATA[
<ul><li><p>as part of its growth plan,</p></li><li><p>in a bid to achieve the target</p></li><li><p>it is pointed out that most of ccl's production came from opencast mines and only 2 mt from underground (ug) mines. ccl is now trying to increase the share underground production. the board of ccl has, thus, approved the introduction of continuous mine in chiru ug at a cost of about rs 145 crore to raise this mine's production from 2 mt to 8 mt per annum.</p></li><li><p>mr ritolia said that.</p></li></ul>
]]>
</news>
</result>
</results>
然后，您的解析器不会将HTML标记视为XML，并允许您访问元素的原始内容。另一种选择是对HTML标记进行编码，即将所有<转换为<，将>转换为>，将&转换为&等。有关编码的更多信息，请参阅here