利用JsonObject解析Json数据

package json1.com.example.john.json_;

import android.app.ProgressDialog;
import android.os.Handler;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.widget.ListView;
import android.widget.Toast;

import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;

import org.apache.http.client.HttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.lang.reflect.Type;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.ProtocolException;
import java.net.URL;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;

public class MainActivity extends AppCompatActivity {

    private static final String port = "http://service.ln263.com/live/getVideoClass";
    private ProgressDialog dialog = null;
    private static final int SUCCESS = 0;
    private static final int ERROR = 1;
    private static final int Exception = 2;
    private ListView lv;
    private String data;
    private List<TvShow> tvShows = new ArrayList<TvShow>();
    private Handler handler = new Handler() {
        public void handleMessage(android.os.Message msg) {
            dialog.dismiss();
            switch (msg.what) {
                case SUCCESS:
                    try {
                        lv.setAdapter(new MyAdapter(tvShows,MainActivity.this));
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                    break;
                case ERROR:
                    Toast.makeText(MainActivity.this,"没能正确连接",Toast.LENGTH_SHORT).show();
                    break;
                case Exception:
                    Toast.makeText(MainActivity.this,"出现异常",Toast.LENGTH_SHORT).show();
            }
        }
    };

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


        lv = (ListView) findViewById(R.id.lv);
        sendRequestWithHttpURLConnection();
    }

    private void sendRequestWithHttpURLConnection() {
        //开启线程发起网络请求
        dialog = new ProgressDialog(this);
        dialog.setMessage("Loading....");
        dialog.show();
        new Thread(new Runnable() {
            @Override
            public void run() {
//
                try {
                    String response = HttpUtil.sendHttpRequest(port);
                    parseJSONWithGSON(response);
                    Message msg = Message.obtain();
                    URL url = new URL(port);
                    msg.what = SUCCESS;
                    handler.sendMessage(msg);
                } catch (Exception e) {
                    e.printStackTrace();
                    Message msg = Message.obtain();
                    msg.what = Exception;
                    handler.sendMessage(msg);
                }
            }

            ;
        }).start();
    }

    private void parseJSONWithGSON(String jsonData) {
        try {

            //int型时间
            double qiantime;
            double xiantime;
            double houtime;

            SimpleDateFormat sf = new SimpleDateFormat("HH:mm");
            String time;
            String name;
            String timenext;
            Date date;
            Date date1;
            long timelong;
            long timelong1;
            TvShow tvShow;
            //获得当前时间
            String nowtime = sf.format(new Date());
            //获取JSON对象
            JSONObject jsonObject = new JSONObject(jsonData);
            int state = jsonObject.getInt("flag");
// Log.d("aaa","1111");
            //解析json数据
            if (state == 100) {
                JSONArray dataArray = jsonObject.getJSONArray("data");
                JSONObject tempObject;
                JSONObject tempObjectnext = null;
                for (int i = 0; i < dataArray.length(); i++) {
                    tempObject = (JSONObject) dataArray.get(i);
                    JSONArray tvStation = tempObject.getJSONArray("list_ln263_video");
                    for (int j = 0; j < tvStation.length(); j++) {
                        tempObject = (JSONObject) tvStation.get(j);
                        JSONArray programArray = tempObject.getJSONArray("list_ln263_videocontent");
                        Log.d("aaa","dsd");
                        for (int k = 0; k < programArray.length(); k++) {
                            //得到name
                            tempObject = (JSONObject) programArray.get(k);
                            String bo = "";
                            name = (tempObject.getString("name"));
                            //得到时间
                            time = (tempObject.getString("live_date")).substring(6,19);
                            timelong = Long.parseLong(time);
                            date = new Date(timelong);
                            time = sf.format(date);
                            //转换成int类型的时间
                            xiantime=Integer.parseInt(nowtime.substring(0,2))+Integer.parseInt(nowtime.substring(3))*0.01;
                            qiantime=Integer.parseInt(time.substring(0,2))+Integer.parseInt(time.substring(3))*0.01;
                            //把时间对应项设置为正在直播
                            if (k<(programArray.length()-1)) {
                                tempObjectnext = (JSONObject) programArray.get(k + 1);
                                timenext = (tempObjectnext.getString("live_date")).substring(6,19);
                                timelong1=Long.parseLong(timenext);
                                date1=new Date(timelong1);
                                houtime=Integer.parseInt(sf.format(date1).substring(0,2))+
                                        Integer.parseInt(sf.format(date1).substring(3))*0.01;
                                if (xiantime>=qiantime&&xiantime<houtime){
                                    bo="正在播放";
                                }
                            }
                            //把三个对应的条目添加到bean类
                            tvShow = new TvShow(time,name,bo);
                            tvShows.add(tvShow);
                        }
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }


    }
}

package json1.com.example.john.json_;

/**
* Created by john on 2016/3/10.
*/

import java.util.Calendar;
import java.util.List;

import android.content.Context;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

public class MyAdapter extends BaseAdapter {
public LayoutInflater mInflater;
private List mList;

public MyAdapter(List<TvShow> list,Context context) {
    mList = list;
    mInflater = LayoutInflater.from(context);
}

@Override
public int getCount() {

    return mList.size();
}

@Override
public Object getItem(int position) {

    return mList.get(position);
}

@Override
public long getItemId(int position) {

    return position;
}

@Override
public View getView(int position,View convertView,ViewGroup parent) {
    ViewHolder viewHolder = null;
    if (convertView == null) {
        Log.d("asd","3");
        viewHolder = new ViewHolder();
        convertView = mInflater.inflate(R.layout.tvshow_item,null);
        viewHolder.time = (TextView) convertView.findViewById(R.id.tv_date);
        viewHolder.content = (TextView) convertView.findViewById(R.id.tv_name);
        viewHolder.now= (TextView) convertView.findViewById(R.id.tv_now);
        convertView.setTag(viewHolder);
    }
    viewHolder = (ViewHolder) convertView.getTag();
    TvShow bean = mList.get(position);
    viewHolder.time.setText(bean.name);
    viewHolder.content.setText(bean.date);
    viewHolder.now.setText(bean.now);

    return convertView;
}

class ViewHolder {
    public TextView time;
    public TextView content;
    public TextView now;
}

}

“`
package json1.com.example.john.json_;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

/**
* Created by john on 2016/3/9.
*/
public class HttpUtil {
public static String sendHttpRequest(String address){
HttpURLConnection connection=null;
try {
URL url=new URL(address);
connection= (HttpURLConnection) url.openConnection();
connection.setRequestMethod(“GET”);
connection.setReadTimeout(8000);
connection.setConnectTimeout(8000);
connection.setDoInput(true);
connection.setDoOutput(true);
InputStream is=connection.getInputStream();
BufferedReader reader=new BufferedReader(new InputStreamReader(is,”utf-8”));
StringBuilder response=new StringBuilder();
String line;
while ((line=reader.readLine())!=null){
response.append(line);
}
return response.toString();

} catch (Exception e) {
        e.printStackTrace();
        return e.getMessage();
    }finally {
        if (connection!=null){
            connection.disconnect();
        }
    }
}

}

“