【Android】 在Andorid中解析Json数据示例

try
	    {
			DefaultHttpClient mDefaultHttpClient = new DefaultHttpClient();
			HttpGet mHttpGet = new HttpGet("http://music.weibo.com/yueku/xxxxxxx");
			HttpResponse mHttpResponse = mDefaultHttpClient.execute(mHttpGet);
			
			StringBuilder mStringBuilder = new StringBuilder();
			if(mHttpResponse.getStatusLine().getStatusCode() == 200)
			{
				BufferedReader mBufferedReader = new BufferedReader(new InputStreamReader(mHttpResponse.getEntity().getContent()));
				for(String str = mBufferedReader.readLine();str != null;str = mBufferedReader.readLine())
				{
					mStringBuilder.append(str);
				}
			}
			
			JSONObject mJSONObject = new JSONObject(mStringBuilder.toString());
			int resultCode = mJSONObject.getInt("retCode");
			if(resultCode==0)
			{
				mbutton.setText("获取数据成功，解析如下：");
				cancelBackgroundAction();
			        asyncReqMusicInfo mAsyncReqMusicInfo = new asyncReqMusicInfo(mJSONObject.getJSONArray("Content"));
			        mAsyncReqMusicInfo.execute(0,0,0);
			}
	    }
	    catch (Exception localException)
	    {
	    	logger.e("Error:"+localException);
	    }

class asyncReqMusicInfo extends AsyncTask<Integer, Integer, Integer>
	{
		JSONArray						JsonArray;
		ArrayList<MusicCategoryDetail>	    MusicCategoryDetailList;
		
		asyncReqMusicInfo(JSONArray mJSONArray)
		{
			this.MusicCategoryDetailList = new ArrayList<MusicCategoryDetail>();
			this.JsonArray = mJSONArray;
		}
		
		protected Integer doInBackground(Integer...params)
		{
			logger.i("[asyncReqMusicInfo]");
			for(int i = 0;i < JsonArray.length();i++)
			{
				JSONObject mJSONObject = (JSONObject) this.JsonArray.opt(i);
				MusicCategoryDetail mMusicCategoryDetail = new MusicCategoryDetail();
				try
				{
					mMusicCategoryDetail.setId(mJSONObject.getInt("id"));
					mMusicCategoryDetail.setName(mJSONObject.getString("name"));
					
					StringBuilder mStringBuilder = new StringBuilder("http://");
					mStringBuilder.append(mJSONObject.getString("image"));
					
					URL mURL = new URL(mStringBuilder.toString());
					logger.i("[mURL]"+mURL);
					Bitmap mBitmap = Activity02.this.getImageByURL(mURL);
					mMusicCategoryDetail.setImage(mBitmap);
					mMusicCategoryDetail.setUrl(mJSONObject.getString("url"));
					MusicCategoryDetailList.add(mMusicCategoryDetail);
				}
				catch(JSONException localJSONException)
				{
					localJSONException.printStackTrace();
				}
				catch(MalformedURLException localMalformedURLException)
				{
					localMalformedURLException.printStackTrace();
				}
				catch(IOException localIOException)
				{
					localIOException.printStackTrace();
				}
			}
			return params[0];
		}
		
		protected void onPostExecute(Integer paramInteger)
		{
			logger.d("onPostExecute");
			Activity2Adapter mActivity2Adapter = new Activity2Adapter(Activity02.this,MusicCategoryDetailList);
			Activity02.this.mListView.setAdapter(mActivity2Adapter);
		}
	}

private Bitmap getImageByURL(URL paramURL) throws IOException
	{
		URLConnection mURLConnection = paramURL.openConnection();
		mURLConnection.connect();
		InputStream mInputStream = mURLConnection.getInputStream();
		BufferedInputStream mBufferedInputStream = new BufferedInputStream(mInputStream);
		Bitmap mBitmap = BitmapFactory.decodeStream(mBufferedInputStream);
		mBufferedInputStream.close();
		mInputStream.close();
		return mBitmap;
	}
		
	public void cancelBackgroundAction()
	{
		if(this.mAsyncReqMusicInfo != null)
		{
			AsyncTask.Status localStatus1 = AsyncTask.Status.RUNNING;
			AsyncTask.Status localStatus2 = this.mAsyncReqMusicInfo.getStatus();
			if(localStatus1 == localStatus2)
				this.mAsyncReqMusicInfo.cancel(true);
		}
		this.mAsyncReqMusicInfo = null;
	}

public class Activity2Adapter extends BaseAdapter
{
	private MyLogger		logger;
	private LayoutInflater	mInflater;
	
	private ArrayList<MusicCategoryDetail>	mMusicListItems;
	
	public Activity2Adapter(Activity paramActivity, ArrayList<MusicCategoryDetail> paramList)
	{
		this.logger = MyLogger.kLog();
		this.mInflater = (LayoutInflater) paramActivity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);;
		this.mMusicListItems = paramList;
		logger.d("mMusicListItems.size:"+mMusicListItems.size());
	}
	
	public int getCount()
	{
		// TODO Auto-generated method stub
		return mMusicListItems.size();
	}
	
	public Object getItem(int position)
	{
		// TODO Auto-generated method stub
		return mMusicListItems.get(position);
	}
	
	public long getItemId(int paramInt)
	{
		return paramInt;
	}
	
	public View getView(int position, View convertView, ViewGroup parent)
	{
		// TODO Auto-generated method stub
		logger.e("This is position:"+position);
		ImageView localImageView = null;
		TextView localTextView1 = null;
		TextView localTextView2 = null;
		TextView localTextView3 = null;
		
		MusicCategoryDetail localMusicCategoryDetail = (MusicCategoryDetail)getItem(position);
		if (localMusicCategoryDetail != null) 
		{
			if (null == convertView) 
			{
				logger.d("convertView == null,Then inflate and findViewById");
				convertView = mInflater.inflate(R.layout.listitem02, parent, false);
				localImageView = (ImageView) convertView.findViewById(R.id.listitem02ImageView);
				localTextView1 = (TextView) convertView.findViewById(R.id.listitem02TextView01);
				localTextView2 = (TextView) convertView.findViewById(R.id.listitem02TextView02);
				localTextView3 = (TextView) convertView.findViewById(R.id.listitem02TextView03);
			}
			else 
			{
				logger.d("convertView != null,Then findViewById");
				localImageView = (ImageView) convertView.findViewById(R.id.listitem02ImageView);
				localTextView1 = (TextView) convertView.findViewById(R.id.listitem02TextView01);
				localTextView2 = (TextView) convertView.findViewById(R.id.listitem02TextView02);
				localTextView3 = (TextView) convertView.findViewById(R.id.listitem02TextView03);
			}
			
			if(null!=convertView)
			{
				logger.d("convertView != null,Then SetValue");
				Util.setBitmap(localImageView, localMusicCategoryDetail.getImage());
				localTextView1.setText("[Id]:"+localMusicCategoryDetail.getId());
				localTextView2.setText("[Name]:"+localMusicCategoryDetail.getName());
				localTextView3.setText("[Url]:"+localMusicCategoryDetail.getUrl());
			}
		}
		return convertView;
	}
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >
	
    <Button 
		android:id					=	"@+id/activity02Button"
		android:layout_width		=	"match_parent"
		android:layout_height		=   "wrap_content" />
	<ListView
    	android:id                  =   "@+id/activity02ListView"
    	android:layout_width		=	"fill_parent"
		android:layout_height		=   "fill_parent"/>
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal">
    
    <ImageView
    	android:id="@+id/listitem02ImageView"
    	android:layout_width="wrap_content"
    	android:layout_height="wrap_content"
    	android:contentDescription="@string/desc"/>
     
     <LinearLayout
    	android:layout_width="match_parent"
    	android:layout_height="wrap_content"
    	android:orientation="vertical">
    	<TextView
    	    android:id="@+id/listitem02TextView01"
    	    android:layout_width="match_parent"
    		android:layout_height="wrap_content"/>
    	<TextView
    	    android:id="@+id/listitem02TextView02"
    	    android:layout_width="match_parent"
    		android:layout_height="wrap_content"/>
    	<TextView
    	    android:id="@+id/listitem02TextView03"
    	    android:layout_width="match_parent"
    		android:layout_height="wrap_content"/>"
     </LinearLayout>
</LinearLayout>