Question

你好伙计们我的解析数据有问题似乎这些额外的字母也正在解析我希望它们删除

如何在我的代码中执行此操作，我将在下面发帖。

这是我的xmlparser.java

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);

    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    } catch (ClientProtocolException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
    // return XML
    return xml;
}

/**
 * Getting XML DOM element
 * @param XML string
 * */
public Document getDomElement(String xml){
    Document doc = null;
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    dbf.setCoalescing(true);
    dbf.setNamespaceAware(true);
    if (dbf.isNamespaceAware()==Boolean.TRUE) {
        dbf.setNamespaceAware(Boolean.FALSE);

    }
    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 || child.getNodeType() == Node.CDATA_SECTION_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);
        str = str.replaceAll("<br/>"," \n");
        return this.getElementValue(n.item(0));
    }

 public final String getElemementValue2 ( Node elem) {
     Node child;
     if( elem != null) {
         if (elem.hasChildNodes()) {
             for ( child = elem.getFirstChild(); child != null; child = child.getNextSibling() ) {
                 if(child.getNodeType() == Node.CDATA_SECTION_NODE) {
                     return child.getNodeValue();

                 }
             }
         }
     }


    return "";

 }

 public String getValue3(Element item, String str) {
     NodeList n = item.getElementsByTagNameNS("http://purl.org/rss/1.0/modules/content/",str );
     String ses = this.getElemementValue2(n.item(0));

     String mim =ses.replaceAll("(?s)\\<.*?\\>", " \n");

    return mim;

 }


}

这里是main.java AndroidXMLParsingActivity

public class AndroidXMLParsingActivity extends ListActivity {

// All static variables
static final String URL = "https://news.instaforex.com/news";
// XML node keys
static final String KEY_ITEM = "item"; // parent node
static final String KEY_ID = "id";
static final String KEY_TITLE = "title";
static final String KEY_PUBDATE = "pubDate";
static final String KEY_DESCRIPTION = "description";

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    ArrayList<HashMap<String, String>> menuItems = new ArrayList<HashMap<String, String>>();

    XMLParser parser = new XMLParser();
    String xml = parser.getXmlFromUrl(URL); // getting XML
    Document doc = parser.getDomElement(xml); // getting DOM element

    NodeList nl = doc.getElementsByTagName(KEY_ITEM);
    // looping through all item nodes <item>
    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_PUBDATE, parser.getValue(e, KEY_PUBDATE));
        map.put(KEY_DESCRIPTION, parser.getValue(e, KEY_DESCRIPTION));

        // adding HashList to ArrayList
        menuItems.add(map);
    }

    // Adding menuItems to ListView
    ListAdapter adapter = new SimpleAdapter(this, menuItems,
            R.layout.list_item,
            new String[] { KEY_TITLE, KEY_DESCRIPTION, KEY_PUBDATE }, new int[] {
                    R.id.name, R.id.desciption, R.id.cost });

            adapter.setNotifyOnChange(true);
    setListAdapter(adapter);

    // selecting single ListView item
    ListView lv = getListView();

    lv.setOnItemClickListener(new OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> parent, View view,
                int position, long id) {
            // getting values from selected ListItem
            String title = ((TextView) view.findViewById(R.id.name)).getText().toString();
            String pubDate = ((TextView) view.findViewById(R.id.cost)).getText().toString();
            String description = ((TextView) view.findViewById(R.id.desciption)).getText().toString();

            // Starting new intent
            Intent in = new Intent(getApplicationContext(), SingleMenuItemActivity.class);
            in.putExtra(KEY_TITLE, title);
            in.putExtra(KEY_PUBDATE, pubDate);
            in.putExtra(KEY_DESCRIPTION, description);
            startActivity(in);

        }
    });
}
}

我只想在描述中解析这些代码，我想在此之前停止解析数据

请查看此link并查看说明。

Answer 1

查看How to strip or escape html tags in Android

您可以使用Html.fromHtml(stringToEscape).toString();方法转义任何您想要的标记。

<强>编辑：

尝试传递pudate＆amp;的值。从HashMap获取的描述如下所示：

  @Override
  public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
     setContentView(R.layout.main);
ArrayList<HashMap<String, String>> menuItems = new ArrayList<HashMap<String, String>>();
XMLParser parser = new XMLParser();
String xml = parser.getXmlFromUrl(URL); // getting XML
Document doc = parser.getDomElement(xml); // getting DOM element

NodeList nl = doc.getElementsByTagName(KEY_ITEM);
// looping through all item nodes <item>
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_PUBDATE, parser.getValue(e, KEY_PUBDATE));
    map.put(KEY_DESCRIPTION, parser.getValue(e, KEY_DESCRIPTION));
    // adding HashList to ArrayList
    menuItems.add(map);
}

// Adding menuItems to ListView
ListAdapter adapter = new SimpleAdapter(this, menuItems,
        R.layout.list_item,
        new String[] { KEY_TITLE, KEY_PUBDATE }, new int[] {
                R.id.name, R.id.cost });

setListAdapter(adapter);

// selecting single ListView item
ListView lv = getListView();
lv.setOnItemClickListener(new OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> parent, View view,
            int position, long id) {
        String m_pubDate = menuItems.get(position).get(KEY_PUBDATE).toString();
    String m_description=menuItems.get(position).get(KEY_DESCRIPTION).toString();

System.out.println("PubDate==>"+m_pubDate+"\n Description===>"+m_description);
        // Starting new intent
        Intent in = new Intent(getApplicationContext(), SingleMenuItemActivity.class);
        in.putExtra(KEY_PUBDATE, m_pubDate);
        in.putExtra(KEY_DESCRIPTION, m_description);
        startActivity(in);
    }
   });
 }

我希望它会对你有所帮助。

感谢。

如何在我的解析数据Dom Parsing </p>中删除<p> </p> <p> <br/> <br/>

1 个答案: