利用JsonObject解析Json数据

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  1. package json1.com.example.john.json_;
  2.  
  3. import android.app.ProgressDialog;
  4. import android.os.Handler;
  5. import android.os.Message;
  6. import android.support.v7.app.AppCompatActivity;
  7. import android.os.Bundle;
  8. import android.util.Log;
  9. import android.widget.ListView;
  10. import android.widget.Toast;
  11.  
  12. import com.google.gson.Gson;
  13. import com.google.gson.reflect.TypeToken;
  14.  
  15. import org.apache.http.client.HttpClient;
  16. import org.json.JSONArray;
  17. import org.json.JSONException;
  18. import org.json.JSONObject;
  19.  
  20. import java.io.BufferedReader;
  21. import java.io.IOException;
  22. import java.io.InputStream;
  23. import java.io.InputStreamReader;
  24. import java.lang.reflect.Type;
  25. import java.net.HttpURLConnection;
  26. import java.net.MalformedURLException;
  27. import java.net.ProtocolException;
  28. import java.net.URL;
  29. import java.text.SimpleDateFormat;
  30. import java.util.ArrayList;
  31. import java.util.Calendar;
  32. import java.util.Date;
  33. import java.util.List;
  34.  
  35. public class MainActivity extends AppCompatActivity {
  36.  
  37.     private static final String port = "http://service.ln263.com/live/getVideoClass";
  38.     private ProgressDialog dialog = null;
  39.     private static final int SUCCESS = 0;
  40.     private static final int ERROR = 1;
  41.     private static final int Exception = 2;
  42.     private ListView lv;
  43.     private String data;
  44.     private List<TvShow> tvShows = new ArrayList<TvShow>();
  45.     private Handler handler = new Handler() {
  46.         public void handleMessage(android.os.Message msg) {
  47.             dialog.dismiss();
  48.             switch (msg.what) {
  49.                 case SUCCESS:
  50.                     try {
  51.                         lv.setAdapter(new MyAdapter(tvShows,MainActivity.this));
  52.                     } catch (Exception e) {
  53.                         e.printStackTrace();
  54.                     }
  55.                     break;
  56.                 case ERROR:
  57.                     Toast.makeText(MainActivity.this,"没能正确连接",Toast.LENGTH_SHORT).show();
  58.                     break;
  59.                 case Exception:
  60.                     Toast.makeText(MainActivity.this,"出现异常",Toast.LENGTH_SHORT).show();
  61.             }
  62.         }
  63.     };
  64.  
  65.     @Override
  66.     protected void onCreate(Bundle savedInstanceState) {
  67.         super.onCreate(savedInstanceState);
  68.         setContentView(R.layout.activity_main);
  69.  
  70.  
  71.         lv = (ListView) findViewById(R.id.lv);
  72.         sendRequestWithHttpURLConnection();
  73.     }
  74.  
  75.     private void sendRequestWithHttpURLConnection() {
  76.         //开启线程发起网络请求
  77.         dialog = new ProgressDialog(this);
  78.         dialog.setMessage("Loading....");
  79.         dialog.show();
  80.         new Thread(new Runnable() {
  81.             @Override
  82.             public void run() {
  83. //
  84.                 try {
  85.                     String response = HttpUtil.sendHttpRequest(port);
  86.                     parseJSONWithGSON(response);
  87.                     Message msg = Message.obtain();
  88.                     URL url = new URL(port);
  89.                     msg.what = SUCCESS;
  90.                     handler.sendMessage(msg);
  91.                 } catch (Exception e) {
  92.                     e.printStackTrace();
  93.                     Message msg = Message.obtain();
  94.                     msg.what = Exception;
  95.                     handler.sendMessage(msg);
  96.                 }
  97.             }
  98.  
  99.             ;
  100.         }).start();
  101.     }
  102.  
  103.     private void parseJSONWithGSON(String jsonData) {
  104.         try {
  105.  
  106.             //int型时间
  107.             double qiantime;
  108.             double xiantime;
  109.             double houtime;
  110.  
  111.             SimpleDateFormat sf = new SimpleDateFormat("HH:mm");
  112.             String time;
  113.             String name;
  114.             String timenext;
  115.             Date date;
  116.             Date date1;
  117.             long timelong;
  118.             long timelong1;
  119.             TvShow tvShow;
  120.             //获得当前时间
  121.             String nowtime = sf.format(new Date());
  122.             //获取JSON对象
  123.             JSONObject jsonObject = new JSONObject(jsonData);
  124.             int state = jsonObject.getInt("flag");
  125. // Log.d("aaa","1111");
  126.             //解析json数据
  127.             if (state == 100) {
  128.                 JSONArray dataArray = jsonObject.getJSONArray("data");
  129.                 JSONObject tempObject;
  130.                 JSONObject tempObjectnext = null;
  131.                 for (int i = 0; i < dataArray.length(); i++) {
  132.                     tempObject = (JSONObject) dataArray.get(i);
  133.                     JSONArray tvStation = tempObject.getJSONArray("list_ln263_video");
  134.                     for (int j = 0; j < tvStation.length(); j++) {
  135.                         tempObject = (JSONObject) tvStation.get(j);
  136.                         JSONArray programArray = tempObject.getJSONArray("list_ln263_videocontent");
  137.                         Log.d("aaa","dsd");
  138.                         for (int k = 0; k < programArray.length(); k++) {
  139.                             //得到name
  140.                             tempObject = (JSONObject) programArray.get(k);
  141.                             String bo = "";
  142.                             name = (tempObject.getString("name"));
  143.                             //得到时间
  144.                             time = (tempObject.getString("live_date")).substring(6,19);
  145.                             timelong = Long.parseLong(time);
  146.                             date = new Date(timelong);
  147.                             time = sf.format(date);
  148.                             //转换成int类型的时间
  149.                             xiantime=Integer.parseInt(nowtime.substring(0,2))+Integer.parseInt(nowtime.substring(3))*0.01;
  150.                             qiantime=Integer.parseInt(time.substring(0,2))+Integer.parseInt(time.substring(3))*0.01;
  151.                             //把时间对应项设置为正在直播
  152.                             if (k<(programArray.length()-1)) {
  153.                                 tempObjectnext = (JSONObject) programArray.get(k + 1);
  154.                                 timenext = (tempObjectnext.getString("live_date")).substring(6,19);
  155.                                 timelong1=Long.parseLong(timenext);
  156.                                 date1=new Date(timelong1);
  157.                                 houtime=Integer.parseInt(sf.format(date1).substring(0,2))+
  158.                                         Integer.parseInt(sf.format(date1).substring(3))*0.01;
  159.                                 if (xiantime>=qiantime&&xiantime<houtime){
  160.                                     bo="正在播放";
  161.                                 }
  162.                             }
  163.                             //把三个对应的条目添加到bean类
  164.                             tvShow = new TvShow(time,name,bo);
  165.                             tvShows.add(tvShow);
  166.                         }
  167.                     }
  168.                 }
  169.             }
  170.         } catch (Exception e) {
  171.             e.printStackTrace();
  172.         }
  173.  
  174.  
  175.     }
  176. }

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;

  1. public MyAdapter(List<TvShow> list,Context context) {
  2.     mList = list;
  3.     mInflater = LayoutInflater.from(context);
  4. }
  5.  
  6. @Override
  7. public int getCount() {
  8.  
  9.     return mList.size();
  10. }
  11.  
  12. @Override
  13. public Object getItem(int position) {
  14.  
  15.     return mList.get(position);
  16. }
  17.  
  18. @Override
  19. public long getItemId(int position) {
  20.  
  21.     return position;
  22. }
  23.  
  24. @Override
  25. public View getView(int position,View convertView,ViewGroup parent) {
  26.     ViewHolder viewHolder = null;
  27.     if (convertView == null) {
  28.         Log.d("asd","3");
  29.         viewHolder = new ViewHolder();
  30.         convertView = mInflater.inflate(R.layout.tvshow_item,null);
  31.         viewHolder.time = (TextView) convertView.findViewById(R.id.tv_date);
  32.         viewHolder.content = (TextView) convertView.findViewById(R.id.tv_name);
  33.         viewHolder.now= (TextView) convertView.findViewById(R.id.tv_now);
  34.         convertView.setTag(viewHolder);
  35.     }
  36.     viewHolder = (ViewHolder) convertView.getTag();
  37.     TvShow bean = mList.get(position);
  38.     viewHolder.time.setText(bean.name);
  39.     viewHolder.content.setText(bean.date);
  40.     viewHolder.now.setText(bean.now);
  41.  
  42.     return convertView;
  43. }
  44.  
  45. class ViewHolder {
  46.     public TextView time;
  47.     public TextView content;
  48.     public TextView now;
  49. }

}

“`
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();

  1. } catch (Exception e) {
  2.         e.printStackTrace();
  3.         return e.getMessage();
  4.     }finally {
  5.         if (connection!=null){
  6.             connection.disconnect();
  7.         }
  8.     }
  9. }

}

“

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