如何将此 Xml 解析为数组 - Android

Question

嘿，我正在尝试解析这个 URL：http://webservice.recruit.co.jp/hotpepper/gourmet/v1/?key=899d70a29e983f4b&lat=33.58724&lng=130.3986&range=5&order=4 进入我的程序，现在如果我能收到完整的 name_kana 和 lat 和 lng 就足够了。我想把它们放在一个数组中，我可以用它来创建一个“for循环”来在谷歌地图上放置标记（不同的.java文件）。 我该怎么做？帮助真的很受欢迎。

代码： 公共类 HandleXml {

    private String feldname[] = new String[10];     //Declaring arrays with the Size 10, the API offers 10 entries
    private String lat[] = new String[10];  
    private String lng[] = new String[10];  
    private String budget[] = new String[10];   

       public int x = 0;                            //Counter for the arrays
       public int f = 0;
       public int a = 0;
       public int n = 0;
       public int b = 0;

    private String urlString = null;                
    public volatile boolean parsingComplete = true;
       private XmlPullParserFactory xmlFactoryObject;

       public HandleXml(String url)                     //Log.e's are used for easier Debugging
       {Log.e("a","a");
          this.urlString = url;
       }
       public String[] getFeldName()                    //Methods returning the values from the XML to the MainActivity
       {Log.e("b","b");
           return feldname;
       }
       public String[] getLat()
       {Log.e("c","c");
           return lat;
       }
       public String[] getLng()
       {Log.e("d","d");
           return lng;
       }
       public String[] getBudget()
       {Log.e("e","e");
           return budget;
       }
       public void parseXMLAndStoreIt(XmlPullParser myParser)  throws XmlPullParserException, IOException       //See name
       {
              Log.e("f","f");
              int event;
              int num=0;
              String text=null;
              Log.e("g","g");

              try 
              {
                  Log.e("h","h");
                  event = myParser.getEventType();                      //Get Event-Type          

              //  for (int i = 0; i < 122; i++) 

                  while (event != XmlPullParser.END_DOCUMENT) 
                  {
                     Log.e(""+num,""+num);
                     Log.e("i","i");
                     String name=myParser.getName();

                    if (name != null)
                        {Log.e("iu"+name,name);}
                    Log.e("j","j");

                    switch (event)                                      //React to the different events
                    {

                       case XmlPullParser.START_TAG:
                       break;
                       case XmlPullParser.TEXT:
                       text = myParser.getText();
                       break;

                       case XmlPullParser.END_TAG:
                          if(name.equals("name_kana"))
                          {
                              Log.e("k","k");
                              feldname[f] = text;
                              Log.e("adf"+feldname[f], feldname[f]);
                              f++;

                          }
                          else if(name.equals("lat"))
                          {     
                              Log.e("l","l");
                              lat[a] = text;// myParser.getAttributeValue(null,"value");
                              Log.e("lat",lat[a]);
                              a++;
                          }
                          else if(name.equals("lng"))
                          {     
                              Log.e("m","m");
                              lng[n] = text;// myParser.getAttributeValue(null,"value");
                              Log.e("lng",lng[n]);
                              n++;
                          }
                          else if(name.equals("name"))
                          {     
                              Log.e("n","n");
                              budget[b] =text;// myParser.getAttributeValue(null,"value");
                              Log.e(budget[b],budget[b]);
                              b++;

                          }
                          else
                          {}
                          break;
                    }   

                    num++;
                    event = myParser.next();

                 }
                 Log.e("p","p");
                         parsingComplete = false;

              } catch (Exception e) {
                 //e.printStackTrace();
              }

           }

       public void fetchXML()
       {
              Thread thread = new Thread(new Runnable()
              {
                 @Override
                 public void run() 
                 {
                    try 
                    {
                       URL url = new URL(urlString);
                       HttpURLConnection conn = (HttpURLConnection) 
                       url.openConnection();                                        
                         conn.setReadTimeout(10000 /* milliseconds */);
                         conn.setConnectTimeout(15000 /* milliseconds */);
                         conn.setRequestMethod("GET");
                          conn.setDoInput(true);
                          conn.connect();
                    InputStream stream = conn.getInputStream();
                    xmlFactoryObject = XmlPullParserFactory.newInstance();
                    XmlPullParser myparser = xmlFactoryObject.newPullParser();

                    myparser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES
                    , false);
                    myparser.setInput(stream, null);
                    parseXMLAndStoreIt(myparser);
                    stream.close();
                    } catch (Exception e) 
                    {
                       e.printStackTrace();
                    }
                }
            });

            thread.start(); 


           }

        }

这是在 MainActivity 中：

 public void open(View view)  
{

      obj = new HandleXml(url);

      obj.fetchXML();

      while(obj.parsingComplete);

      feldname = obj.getFeldName();

      budget = obj.getBudget();

      lat2 = obj.getLat();
      lng2 = obj.getLng();

      int min = feldname.length;                                        //Set min to lowest length of any Array
      if (min > budget.length)
      {min = budget.length;}
      if (min > lat2.length)
      {min = lat2.length;}
      if (min > lng2.length)
      {min = lng2.length;}
      String aus;
        Log.e("länge", aus = String.valueOf(feldname.length));          //Array Length is 10

      for(int x = 0; x < feldname.length; x++){                         //Reading the Content of the Array for debug purpose
         if (feldname[x] != null)
         { Log.e("feldname", feldname[x]);


         }}


      Log.e("wtgs"+budget.length,"wtgs"+budget.length);                 //Further content reading for the Log
      Log.e("wtgs"+lng2.length,"wtgs"+lng2.length);

      for (int i =0; i < min; i++ )                                     //Placing Markers with Array Contents
      {
      Log.e("6","6");
    //  feldname = obj.getFeldName();
      Log.e("7","7");
    //  
      lat4 = lat2[i];
      lng4 = lng2[i];
      lat3 = Float.parseFloat(lat4);
      lng3 = Float.parseFloat(lng4);

      Log.e("10","10");

  GoogleMap mMap;
      Log.e("11","11");
      mMap = ((MapFragment) getFragmentManager().findFragmentById(R.id.fragment1)).getMap();
      Log.e("12","12");
        mMap.addMarker(new MarkerOptions()
        .position(new LatLng(lat3, lng3))
        .title(feldname[i]+" "+budget[i]));  
      Log.e("13","13"); 
      }
}

更多信息，这就是我的 HandleXml 类

import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;

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

import android.util.Log;

LogCat

02-04 16:24:49.515: W/ActivityManager(2350): Unable to start service Intent { act=com.google.android.gms.analytics.service.START cmp=com.google.android.gms/.analytics.service.AnalyticsService (has extras) } U=0: not found
02-04 16:24:49.520: W/GAV2(30695): Thread[GAThread,5,main]: Service unavailable (code=1), will retry.
02-04 16:24:50.555: W/nalizableReferenceQueue(30903): Could not load Finalizer in its own class loader. Loading Finalizer in the current class loader instead. As a result, you will not be able to garbage collect this class loader. To support reclaiming this class loader, either resolve the underlying issue, or move Google Collections to your system class path.
02-04 16:24:50.555: W/nalizableReferenceQueue(30903): java.io.FileNotFoundException: com/google/inject/internal/util/$Finalizer.class
02-04 16:24:50.555: W/nalizableReferenceQueue(30903):   at com.google.inject.internal.util.$FinalizableReferenceQueue$DecoupledLoader.getBaseUrl(SourceFile:269)
02-04 16:24:50.555: W/nalizableReferenceQueue(30903):   at com.google.inject.internal.util.$FinalizableReferenceQueue$DecoupledLoader.loadFinalizer(SourceFile:253)
02-04 16:24:50.555: W/nalizableReferenceQueue(30903):   at com.google.inject.internal.util.$FinalizableReferenceQueue.loadFinalizer(SourceFile:175)
02-04 16:24:50.555: W/nalizableReferenceQueue(30903):   at com.google.inject.internal.util.$FinalizableReferenceQueue.<clinit>(SourceFile:100)
02-04 16:24:50.555: W/nalizableReferenceQueue(30903):   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1046)
02-04 16:24:50.555: W/nalizableReferenceQueue(30903):   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:862)
02-04 16:24:50.555: W/nalizableReferenceQueue(30903):   at dalvik.system.NativeStart.main(Native Method)
02-04 16:24:50.835: W/ActivityManager(2350): Permission denied: checkComponentPermission() owningUid=10044
02-04 16:24:50.835: W/ActivityManager(2350): Permission denied: checkComponentPermission() owningUid=10044
02-04 16:24:50.910: W/ActivityManager(2350): Permission denied: checkComponentPermission() owningUid=10044
02-04 16:24:50.910: W/ActivityManager(2350): Permission denied: checkComponentPermission() owningUid=10044
02-04 16:24:50.940: W/ActivityManager(2350): Permission denied: checkComponentPermission() owningUid=10044
02-04 16:24:50.945: W/ActivityManager(2350): Permission denied: checkComponentPermission() owningUid=10044

跳过了一些部分，因为我必须在真实设备上调试地图，有很多条目......但程序没有真正的错误

Answer 1

可以先发起Http get请求从url获取数据。

然后使用任意xml解析器解析标签，得到需要的数据。

对于解析，您可以使用XmlPullParser 或您选择的解析器。解析后，您可以将其添加到数组或数组列表中

http://developer.android.com/training/basics/network-ops/xml.html

注意：所有网络操作都应该在后台线程中完成。

使用AsyncTask 或Thread。您还可以使用名为 Volley 的库。

编辑：

您的解析看起来不错。我试过你的代码。你可以有arraylist

ArrayList<String> nameList = new ArrayList<String>();  
ArrayList<String> budList = new ArrayList<String>(); 
ArrayList<String> latList = new ArrayList<String>(); 
ArrayList<String> lngList = new ArrayList<String>();

然后

public void parseXMLAndStoreIt(XmlPullParser myParser)  throws XmlPullParserException, IOException       //See name
    {
           Log.e("f","f");
           int event;
           int num=0;
           String text=null;
           Log.e("g","g");
           try 
           {
               Log.e("h","h");
               event = myParser.getEventType();                         
               //  for (int i = 0; i < 122; i++) 
               while (event != XmlPullParser.END_DOCUMENT) 
               {
                  // Log.e(""+num,""+num);
                  // Log.e("i","i");
                  String name=myParser.getName();

                 if (name != null)
                 {
                    // Log.e("iu"+name,name);
                 }
                 switch (event)                                    
                 {

                    case XmlPullParser.START_TAG:
                    break;
                    case XmlPullParser.TEXT:
                    text = myParser.getText();
                    break;

                    case XmlPullParser.END_TAG:
                      String lat =null,bud=null,lng=null,nam=null;;
                       if(name.equals("name_kana"))
                       {
                          budList.add(text);

                       }
                       else if(name.equals("lat"))
                       {     
                           latList.add(text);
                       }
                       else if(name.equals("lng"))
                       {     
                           lngList.add(text);
                       }
                       else if(name.equals("name"))
                       {     
                           nameList.add(text);
                       }
                       else
                       {

                       }


                       break;
                 }  

                 num++;
                 event = myParser.next();

               }  

           } catch (Exception e) {
              e.printStackTrace();
           }

        }