Android 解析服務器JSON對象

view plain

package android.test;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;
public class Main extends Activity {
    private TextView m_textView;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        JSONObject obj = GetJsonObject();
        StringBuilder sb = new StringBuilder();
        try {
            sb.append("product_id: " + obj.getInt("id") + "/n");
            sb.append("website_name: " + obj.getString("site_name") + "/n");
            sb.append("title: " + obj.getString("title") + "/n");
        } catch (JSONException e) {
            e.printStackTrace();
        }
        m_textView = (TextView) findViewById(R.id.myTextView);
        m_textView.setText(sb.toString());
    }
    private JSONObject GetJsonObject() {
        HttpClient client = new DefaultHttpClient();
        StringBuilder builder = new StringBuilder();
        JSONArray jsonArray = null;
        HttpGet get = new HttpGet("http://www.test.com/aaa");
        try {
            HttpResponse response = client.execute(get);
            BufferedReader reader = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
            for (String s = reader.readLine(); s != null; s = reader.readLine()) {
                builder.append(s);
            }
            Log.i("json_str", builder.toString());
            jsonArray = new JSONArray(builder.toString());
            for (int i = 0; i < 2; ++i) {
                JSONObject jsonObject = jsonArray.getJSONObject(i);
                Log.i("id", jsonObject.getInt("id") + "");
                Log.i("website_name", jsonObject.getString("site_name"));
                Log.i("website_url", jsonObject.getString("site_url"));
                Log.i("category", jsonObject.getInt("category") + "");
                Log.i("title", jsonObject.getString("title"));
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        try {
            return jsonArray.getJSONObject(5);
        } catch (JSONException e) {
            e.printStackTrace();
            return null;
        }
    }
}