如何解析XML字符串xmlpullparser安卓

我想解析XML字符串，并以EditText上显示，但我不能，我不明白可能是什么问题，请一点帮助，我的代码：如何解析XML字符串xmlpullparser安卓

私人字符串XMLC = "<game><cel>5</cel><val>2</val></game>";

private CharSequence readXML(String xmlc2) throws XmlPullParserException { 


    XmlPullParserFactory factory = XmlPullParserFactory.newInstance(); 
    XmlPullParser xpp = factory.newPullParser(); 

    String results = ""; 
    String celda = ""; 
    String valor = ""; 

    xpp.setInput(new StringReader (xmlc2)); 
    int eventType = xpp.getEventType(); 
    String tagName = xpp.getName(); 

    try {  
     while (eventType != XmlPullParser.END_DOCUMENT) { 

      if(tagName.equalsIgnoreCase("cell")){ 
       celda = xpp.nextText(); 
      } else if(tagName.equalsIgnoreCase("val")){ 
       valor = xpp.nextText(); 
      }  
      xpp.nextTag();  
     }  
    } catch (Exception e) { 
     Toast.makeText(this, "error!", Toast.LENGTH_LONG).show(); 
    } 
    return celda; 
}

感谢您的建议，现在我可以发送字符串XML作为参数，我可以分析，但我不知道该怎么救找到了2个值并且显示每个值在不同的EditText中？

private EditText et02; 
private EditText et03; 
private String xmlc = "<game><cel>5</cel><val>2</val></game>"; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 

    EditText et02 = (EditText)findViewById(R.id.et02); 
    EditText et03 = (EditText)findViewById(R.id.et03); 

    TextView myXmlContent = (TextView)findViewById(R.id.xml_tv); 
    String stringXmlContent; 

    stringXmlContent = getAllXML(); 
    myXmlContent.setText(stringXmlContent); 

} 
public String getAllXML(){ 

    Activity activity = this; 
    String str = ""; 

    //For file source 
    //Resources res = activity.getResources(); 
    //XmlResourceParser xpp = res.getXml(R.xml.test); 


    try { 
     //For String source 
     XmlPullParserFactory factory = XmlPullParserFactory.newInstance(); 
     factory.setNamespaceAware(true); 
     XmlPullParser xpp = factory.newPullParser(); 
     xpp.setInput(new StringReader(xmlc)); 

     xpp.next(); 
     int eventType = xpp.getEventType();       

      while (xpp.getEventType()!=XmlPullParser.END_DOCUMENT) { 
       if (xpp.getEventType()==XmlPullParser.START_TAG) { 
        if (xpp.getName().equals("cel")) { 
         str += "\ncell : "+xpp.nextText(); 
        } 
        if (xpp.getName().equals("val")) { 
         str += "\nval : "+xpp.nextText();      
        } 
       } 
       xpp.next(); 
      } 

    } catch (XmlPullParserException e) { 
      e.printStackTrace(); 
    } catch (IOException e) { 
      e.printStackTrace(); 
    } 
    return str; 
}

来源

2013-04-22 user2287189

问题是什么？ – Egor 2013-04-22 07:53:40

你在你的代码中使用xmlc2而不是xmlc（如果它不在其他类中）并且搜索“cell”而不是像你的xml中的“cel”。 – luxer 2013-04-22 08:10:10

我不知道如何检索值“celda”和“valor”以显示在textview中，我还在bucle中添加了“Toasts”，同时显示值但我没有显示任何内容。总之，我想发送一个参数作为输入，并获得2个值作为输出。 – user2287189 2013-04-22 09:00:24

//调用的Web API和尝试下面的代码进行XML解析

new GettingData().execute(); 

private class GettingDataextends AsyncTask<String, String, String> { 

     private static final String PLACEMARK = "Placemark"; 
     private static final String NAME = "name"; 
     private static final String DESCRIPTION = "description"; 
     private static final String COORDINATES = "coordinates"; 
     private ProgressDialog progressDialog; 
     private String serverName, trackName; 


     @Override 
     protected void onPreExecute() { 

      super.onPreExecute(); 
       progressDialog = new ProgressDialog(mContext); 
       progressDialog.setMessage("Loading ..."); 
       progressDialog.setIndeterminate(false); 
       progressDialog.setCancelable(false); 
       progressDialog.show(); 


     } 

     @Override 
     protected String doInBackground(String... args) { 

      try { 

       url = "Your_Url_Here"; 

       XMLParser parser1 = new XMLParser(); 
       String xml = parser1.getXmlFromUrl(url); // getting XML 

       XmlPullParserFactory factory = XmlPullParserFactory 
         .newInstance(); 
       factory.setNamespaceAware(true); 
       XmlPullParser parser = factory.newPullParser(); 

       parser.setInput(new StringReader(xml)); 

       int eventType = parser.getEventType(); 
       Model mModel = null; 
       while (eventType != XmlPullParser.END_DOCUMENT) { 

        String name = null; 
        switch (eventType) { 
        case XmlPullParser.START_DOCUMENT: 
         break; 
        case XmlPullParser.START_TAG: 
         name = parser.getName(); 
         if (name.equalsIgnoreCase(PLACEMARK)) { 
          mModel = new Model(); 
         } else if (mModel != null) { 
          if (name.equalsIgnoreCase(NAME)) { 
           mModel.setName(parser 
             .nextText()); 
          } else if (name.equalsIgnoreCase(DESCRIPTION)) { 
           mModel.setDescription(parser 
             .nextText()); 
          } else if (name.equalsIgnoreCase(COORDINATES)) { 
           mModel.setCoordinates(parser 
             .nextText()); 
          } 
         } 
         break; 
        case XmlPullParser.END_TAG: 
         name = parser.getName(); 
         if (name.equalsIgnoreCase(PLACEMARK) 
           && mModel != null) { 

          if (!mPlaceMarkSingleDriver.getName() 
            .equalsIgnoreCase("null")) { 
           Constance.mArryList           .add(mModel); 
          } 

         } 
         break; 
        } 
        eventType = parser.next(); 
       } 

      } catch (Exception e) { 


        progressDialog.dismiss(); 


      } 

      return null; 

     } 

     @Override 
     protected void onPostExecute(String result) { 

      progressdialog.dismiss(); 
    }

// XMLPARSE类

import java.io.IOException; 
import java.io.StringReader; 
import java.io.UnsupportedEncodingException; 

import javax.xml.parsers.DocumentBuilder; 
import javax.xml.parsers.DocumentBuilderFactory; 
import javax.xml.parsers.ParserConfigurationException; 

import org.apache.http.HttpEntity; 
import org.apache.http.HttpResponse; 
import org.apache.http.client.ClientProtocolException; 
import org.apache.http.client.methods.HttpPost; 
import org.apache.http.impl.client.DefaultHttpClient; 
import org.apache.http.util.EntityUtils; 
import org.w3c.dom.Document; 
import org.w3c.dom.Element; 
import org.w3c.dom.Node; 
import org.w3c.dom.NodeList; 
import org.xml.sax.InputSource; 
import org.xml.sax.SAXException; 

import android.util.Log; 

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(); 
     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)); 
     } 
}

来源

2013-11-18 16:36:49

如何添加参数假设我有两个参数，即用户名和密码。 – 2014-11-20 04:49:52

你没有更新，而循环内的标记名试试这个：

while (eventType != XmlPullParser.END_DOCUMENT) { 
    if (tagName.equalsIgnoreCase("cell")) { 
     celda = xpp.nextText(); 
    } else if(tagName.equalsIgnoreCase("val")) { 
     valor = xpp.nextText(); 
    }  
    xpp.nextTag(); 
    tagname=xpp.getName();  
}

来源

2014-07-16 04:57:55

如何解析XML字符串xmlpullparser安卓

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