Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>Here is one example i hope it will be usefull to understand "SAXParser"</p> <pre><code>package test.example; import java.io.BufferedReader; import java.io.InputStream; import java.io.InputStreamReader; import java.net.URL; import javax.xml.parsers.SAXParser; import javax.xml.parsers.SAXParserFactory; import org.xml.sax.InputSource; import org.xml.sax.SAXException; import org.xml.sax.XMLReader; import org.xml.sax.helpers.DefaultHandler; import android.app.Activity; import android.os.Bundle; import android.util.Log; import android.widget.TextView; public class XMLParsingDemo extends Activity { private final String MY_DEBUG_TAG = "WeatherForcaster"; /** Called when the activity is first created. */ @Override public void onCreate(Bundle icicle) { super.onCreate(icicle); /* Create a new TextView to display the parsingresult later. */ TextView tv = new TextView(this); try { /* Create a URL we want to load some xml-data from. */ DefaultHttpClient hc = new DefaultHttpClient(); ResponseHandler &lt;String&gt; res = new BasicResponseHandler(); HttpPost postMethod = new HttpPost("http://www.anddev.org/images/tut/basic/parsingxml/example.xml"); String response=hc.execute(postMethod,res); /* Get a SAXParser from the SAXPArserFactory. */ SAXParserFactory spf = SAXParserFactory.newInstance(); SAXParser sp = spf.newSAXParser(); /* Get the XMLReader of the SAXParser we created. */ XMLReader xr = sp.getXMLReader(); /* Create a new ContentHandler and apply it to the XML-Reader*/ ExampleHandler myExampleHandler = new ExampleHandler(); xr.setContentHandler(myExampleHandler); /* Parse the xml-data from our URL. */ InputSource inputSource = new InputSource(); inputSource.setEncoding("UTF-8"); inputSource.setCharacterStream(new StringReader(response)); /* Parse the xml-data from our URL. */ xr.parse(inputSource); /* Parsing has finished. */ /* Our ExampleHandler now provides the parsed data to us. */ ParsedExampleDataSet parsedExampleDataSet = myExampleHandler.getParsedData(); /* Set the result to be displayed in our GUI. */ tv.setText(response + "\n\n\n***************************************" + parsedExampleDataSet.toString()); } catch (Exception e) { /* Display any Error to the GUI. */ tv.setText("Error: " + e.getMessage()); Log.e(MY_DEBUG_TAG, "WeatherQueryError", e); } /* Display the TextView. */ this.setContentView(tv); } public class ExampleHandler extends DefaultHandler { // =========================================================== // Fields // =========================================================== private boolean in_outertag = false; private boolean in_innertag = false; private boolean in_mytag = false; private ParsedExampleDataSet myParsedExampleDataSet = new ParsedExampleDataSet(); // =========================================================== // Getter &amp; Setter // =========================================================== public ParsedExampleDataSet getParsedData() { return this.myParsedExampleDataSet; } // =========================================================== // Methods // =========================================================== @Override public void startDocument() throws SAXException { this.myParsedExampleDataSet = new ParsedExampleDataSet(); } @Override public void endDocument() throws SAXException { // Nothing to do } /** Gets be called on opening tags like: * &lt;tag&gt; * Can provide attribute(s), when xml was like: * &lt;tag attribute="attributeValue"&gt;*/ @Override public void startElement(String uri, String localName, String qName, org.xml.sax.Attributes atts) throws SAXException { super.startElement(uri, localName, qName, atts); if (localName.equals("outertag")) { this.in_outertag = true; } else if (localName.equals("innertag")) { String attrValue = atts.getValue("sampleattribute"); myParsedExampleDataSet.setExtractedString(attrValue); this.in_innertag = true; } else if (localName.equals("mytag")) { this.in_mytag = true; } else if (localName.equals("tagwithnumber")) { // Extract an Attribute String attrValue = atts.getValue("thenumber"); int i = Integer.parseInt(attrValue); myParsedExampleDataSet.setExtractedInt(i); } } /** Gets be called on closing tags like: * &lt;/tag&gt; */ @Override public void endElement(String namespaceURI, String localName, String qName) throws SAXException { if (localName.equals("outertag")) { this.in_outertag = false; }else if (localName.equals("innertag")) { this.in_innertag = false; }else if (localName.equals("mytag")) { this.in_mytag = false; }else if (localName.equals("tagwithnumber")) { // Nothing to do here } } /** Gets be called on the following structure: * &lt;tag&gt;characters&lt;/tag&gt; */ @Override public void characters(char ch[], int start, int length) { if(this.in_mytag){ myParsedExampleDataSet.setExtractedString(new String(ch)); } } } public class ParsedExampleDataSet { private String extractedString = null; private int extractedInt = 0; public String getExtractedString() { return extractedString; } public void setExtractedString(String extractedString) { this.extractedString = extractedString; } public int getExtractedInt() { return extractedInt; } public void setExtractedInt(int extractedInt) { this.extractedInt = extractedInt; } public String toString(){ return "\n\n\nExtractedString = " + this.extractedString + "\n\n\nExtractedInt = " + this.extractedInt; } } } </code></pre>
    singulars
    1. This table or related slice is empty.
    1. POAndroid: parse XML from string problems
      singulars
      1. PTQuestion
    1. PTAnswer
    1. USVaibhav Jani
    1. USVaibhav Jani
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. POAndroid: parse XML from string problems
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTApproveEditSuggestion
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. COThanks, this is exactly what I needed.
      singulars
      1. PO
      1. USDonut
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload