1. 首頁
  2. 問答
  3. 爲什麼我的XML解析器不行

爲什麼我的XML解析器不行

2014-06-27 34 views
0

我得到了下面的XML文件名爲test2.xml在我的資產文件夾：爲什麼我的XML解析器不行

<?xml version="1.0" encoding="UTF-8"?> 
<map version="1.0" orientation="orthogonal" width="32" height="32" tilewidth="16" tileheight="16"> 
    <tileset firstgid="1" name="terrain" tilewidth="16" tileheight="16"> 
    <image source="terrain.png" width="256" height="256"/> 
</tileset> 
<layer name="Kachelebene 2" width="32" height="32"> 
    <data encoding="csv"> 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,187,187,187,187,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,164,164,164,164,164,164,164,187,187,164,164,187,187,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,164,0,187,187,187,164,164,164,164,187,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,93,93,94,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,93,94,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,93,94,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,92,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 
    </data> 
</layer> 
<layer name="Kachelebene 1" width="32" height="32"> 
    <data encoding="csv"> 
     3,3,3,164,3,164,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3, 
     3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3, 
     3,3,3,3,3,3,3,3,3,3,36,36,36,36,36,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3, 
     3,3,3,3,3,3,3,36,36,36,3,3,36,36,36,164,36,36,36,36,36,36,36,36,36,36,36,36,3,3,3,3, 
     3,3,3,3,3,3,3,3,3,36,36,36,3,3,3,164,164,3,3,3,3,3,3,3,3,3,3,3,36,36,36,3, 
     3,3,3,3,3,3,3,3,36,36,3,3,3,187,164,164,164,164,3,3,3,3,3,3,3,3,3,3,3,3,36,36, 
     3,3,3,3,3,3,3,36,36,3,3,3,3,3,164,164,187,164,164,164,164,164,3,3,164,164,3,3,3,3,3,3, 
     3,3,3,3,3,3,36,36,3,3,3,3,3,3,3,164,164,164,164,164,164,164,164,164,164,3,3,3,3,3,3,3, 
     3,3,3,3,3,3,36,3,3,3,3,3,3,3,3,164,3,164,164,164,164,164,164,3,3,3,3,3,3,3,3,3, 
     3,3,3,3,3,36,36,3,3,3,3,3,3,3,3,164,164,164,164,164,164,164,164,164,164,164,164,3,3,3,3,3, 
     3,3,3,3,3,36,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3, 
     3,3,3,3,36,3,3,3,3,3,3,3,3,3,3,3,3,3,3,4,4,4,4,4,4,3,4,4,4,3,3,3, 
     3,3,3,36,36,3,3,3,4,4,4,4,4,4,4,4,4,4,207,207,207,207,207,207,207,3,3,3,3,4,3,3, 
     3,3,36,36,3,3,3,3,4,3,71,207,207,207,207,207,207,207,207,207,207,207,207,207,3,71,3,3,3,4,3,3, 
     3,36,36,3,3,3,3,3,4,3,71,207,207,207,207,207,207,207,207,207,207,207,3,207,3,71,3,3,3,3,3,3, 
     3,36,3,3,3,3,3,3,4,3,71,207,207,207,207,207,207,207,207,207,3,3,207,207,3,71,3,3,3,4,4,3, 
     36,36,3,3,3,3,3,3,4,3,71,207,207,207,207,207,207,207,207,3,207,207,207,207,3,71,3,3,3,3,4,3, 
     36,3,3,3,3,3,3,3,4,3,71,207,207,207,207,207,207,207,207,207,207,3,207,3,3,71,3,3,3,3,4,3, 
     36,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,3, 
     36,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3, 
     36,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,86,3,3,3,3,3,3,3,3,3,3,3,3,3,3, 
     36,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,86,3,3,3,3,3,3,3,3,3,3,3,3,3, 
     36,3,3,3,3,3,3,3,36,36,36,3,3,3,3,3,3,3,86,3,3,3,3,3,3,3,3,3,3,3,3,3, 
     36,3,3,3,3,3,36,36,36,3,3,3,3,3,3,3,3,3,86,3,3,3,3,3,3,3,3,3,3,3,3,3, 
     36,36,36,36,36,36,3,3,3,3,3,3,3,3,3,3,3,3,86,3,3,3,3,3,3,3,3,3,3,3,3,3, 
     3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,86,3,3,3,3,3,3,3,3,3,3,3,3,3, 
     3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,86,3,3,3,3,3,3,3,3,3,3,3,3,3, 
     3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,86,3,3,3,3,3,3,3,3,3,3,3,3,3, 
     3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,86,3,3,3,3,3,3,3,3,3,3,3,3,3, 
     3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,86,3,3,3,3,3,3,3,3,3,3,3,3,3, 
     3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,86,3,3,3,3,3,3,3,3,3,3,3,3,3, 
     3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,86,3,3,3,3,3,3,3,3,3,3,3,3,3 
    </data> 
</layer> 
</map>

，並試圖與下面的類來閱讀：

package de.anlixstudios.davidsdragonadventure; 

import java.io.IOException; 
import java.io.InputStream; 
import java.util.HashMap; 
import java.util.List; 

import org.xmlpull.v1.XmlPullParser; 
import org.xmlpull.v1.XmlPullParserException; 
import org.xmlpull.v1.XmlPullParserFactory; 

import android.content.Context; 
import android.util.Log; 
import android.widget.Toast; 

public class LevelCreator { 

public List<HashMap<Integer, List<Integer>>> levels = null; 
public List<String> levelName = null; 
private GraphicsHolder mGraphicsHolder; 
public static final String ns = null; 
private GameActivity mGameActivity; 
private String heightString; 
private String widthString; 
private InputStream in_s; 
private Context context; 
private int height = 0; 
private int width = 0; 

public LevelCreator(Context context, GraphicsHolder holder){ 
    // TODO adding parameters for the GameActivity and the GraphicsHolder 
    this.context = context; 
    mGameActivity = (GameActivity) context; 
    mGraphicsHolder = holder; 
    Log.d("LevelCreator", "created"); 
} 

// public accessible function, returns the levels 
public List<HashMap<Integer, List<Integer>>> getLevels(){ 
    XmlPullParserFactory pullParserFactory; 
    try{ 
     pullParserFactory = XmlPullParserFactory.newInstance(); 
     Log.d("pullParserFactory", "new Instance created"); 
     XmlPullParser parser = pullParserFactory.newPullParser(); 
     in_s = context.getAssets().open("test2.xml"); 
     Log.d("got Assets", "setting input and starting"); 
     parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, false); 
     parser.setInput(in_s, null); 
     parser.nextTag(); 
     return parseXML(parser); 
    } catch (XmlPullParserException e){ 
     e.printStackTrace(); 
    } catch (IOException e){ 
     e.printStackTrace(); 
    } 
    return null; 
} 

// called from the public function and does the actual work 
private List<HashMap<Integer, List<Integer>>> parseXML(XmlPullParser parser) 
throws XmlPullParserException,IOException { 

    Log.d("LevelCreator", "parseXML"); 

    List<HashMap<Integer, List<Integer>>> field = null; 

    parser.require(XmlPullParser.START_TAG, ns, "map"); 

    int eventType = parser.getEventType(); 

    while(eventType != XmlPullParser.END_DOCUMENT){ 
     Log.d("LevelCreator", "eventType != XmlPullParser.END_DOCUMENT"); 
     if(parser.getEventType() != XmlPullParser.START_TAG) { 
      continue; 
     } 
     String name = parser.getName(); 
     Log.d("LevelCreator", "name: " + name); 
     // Starts by looking for the entry tag 
     if(name.equals("layer")) { 
      Log.d("LevelCreator", "name = layer"); 
      widthString = (String) parser.getProperty("width"); 
      heightString = (String) parser.getProperty("height"); 
      try { 
       width = Integer.parseInt(widthString); 
       height = Integer.parseInt(heightString); 
      } catch(NumberFormatException nfe) { 
       System.out.println("Could not parse " + nfe); 
      } 
      Log.d("width", widthString); 
      Log.d("height", heightString); 
      field.add(readEntry(parser)); 
     } else { 
      skip(parser); 
      Log.d("LevelCreator", "skipped"); 
     } 
    } 
    return field; 
} 

// returns one level int the xml file 
private HashMap<Integer, List<Integer>> readEntry(XmlPullParser parser) 
throws XmlPullParserException, IOException { 
    parser.require(XmlPullParser.START_TAG, ns, "layer"); 
    HashMap<Integer, List<Integer>> data = null; 
    while(parser.next() != XmlPullParser.END_TAG) { 
     if(parser.getEventType() != XmlPullParser.START_TAG) { 
      continue; 
     } 
     String name = parser.getName(); 
     if(name.equals("data")) { 
      Log.d("LevelCreator", "name = data"); 
      data = readData(parser); 
     } else { 
      skip(parser); 
     } 
    } 
    return data; 
} 

private HashMap<Integer, List<Integer>> readData(XmlPullParser parser) 
throws XmlPullParserException, IOException { 
    parser.require(XmlPullParser.START_TAG, ns, "data"); 
    String dataString = readText(parser); 
    Log.d("LevelCreator", "readText"); 
    parser.require(XmlPullParser.END_TAG, ns, "data"); 
    // TODO make the String to a HashMap 
    return createMap(dataString); 
} 

// method to skip everything with tags not wanted 
private void skip(XmlPullParser parser) throws XmlPullParserException, 
IOException { 
      Log.d("LevelCreator", "eventType != XmlPullParser.END_DOCUMENT"); 
    if (parser.getEventType() != XmlPullParser.START_TAG) { 
     throw new IllegalStateException(); 
    } 
    int depth = 1; 
    while (depth != 0) { 
     switch (parser.next()) { 
      case XmlPullParser.END_TAG: 
      depth--; 
      break; 
      case XmlPullParser.START_TAG: 
      depth++; 
      break; 
     } 
    } 
} 

// returns the Text in the <data></data> field 
private String readText(XmlPullParser parser) throws IOException, 
XmlPullParserException { 
    String result = ""; 
    if (parser.next() == XmlPullParser.TEXT) { 
     result = parser.getText(); 
     parser.nextTag(); 
    } 
    return result; 
} 

// actually returns nothing but should later return a HashMap<Integer, 
// List<Integer>> from a string, with the Info about height and width 
private HashMap<Integer, List<Integer>> createMap(String xmldata) { 
    Log.d("LevelCreator", "createMap"); 
    HashMap<Integer, List<Integer>> level; 
    List<Integer> row; 
    String[] AllData = xmldata.split(","); 
    int count = 0; 
    for (String data : AllData) { 
     Log.d("" + count, data); 
    } 
    // TODO making the Splitted string to a Hashmap with the width and height 

    return null; 
} 

public List<String> getlevelNames(){ 
    return levelName; 
} 
}

配件這個類是來自developer.android.com的例子，我認爲理解它，但我似乎不是。啊，它在

if(eventType != XmlPullParser.END_DOCUMENT){ 
    continue; 
}

查詢之前卡在Logtext上。爲什麼？我需要做些什麼才能真正獲得帶有數據的字符串？ 啊，我還沒寫出用於創建HashMap的算法，因爲我想看看是否得到類似{「0」，「0」，「0」，...}或{「0，」， 「0」，「0」，...}返回。 這將是非常好的如果有人可以幫助我。謝謝！ 哦，我似乎還沒有理解XmlParser，所以如果有更簡單的方法，請告訴我:)

來源

2014-06-27 blueBurningCoder

回答

0

這是阻塞，因爲你不在解析器中移動。你需要調用next（）或nextTag（）

while(eventType != XmlPullParser.END_DOCUMENT){ 
    Log.d("LevelCreator", "eventType != XmlPullParser.END_DOCUMENT"); 

    eventType = parser.next(); 

    if(eventType != XmlPullParser.START_TAG) { 
     continue; 
    } 
    ... 
}

這應該有助於

來源

2014-08-30 02:11:03 Pentarius

相關問題

 相關問題