使用JSONObject用法

前端之家收集整理的这篇文章主要介绍了使用JSONObject用法前端之家小编觉得挺不错的,现在分享给大家,也给大家做个参考。
package com.jia.networktools;

import org.apache.http.HttpEntity;
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.apache.http.util.EntityUtils;
import org.json.JSONArray;
import org.json.JSONObject;

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

import com.google.gson.Gson;

public class MainActivity extends Activity implements OnClickListener {
	public static final int SHOW_RESPONSE = 0;
	private Button sendRequest;
	private TextView responseText;
	private Handler handler = new Handler() {
		public void handleMessage(Message msg) {
			switch (msg.what) {
			case SHOW_RESPONSE:
				String response = (String) msg.obj;
				responseText.setText(response);
			}
		}
	};

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		sendRequest = (Button) findViewById(R.id.send_request);
		responseText = (TextView) findViewById(R.id.response_text);
		sendRequest.setOnClickListener(this);
	}

	@Override
	public void onClick(View v) {
		if (v.getId() == R.id.send_request) {
			sendRequestWithHttpClient();
		}

	}

	private void sendRequestWithHttpClient() {
		new Thread(new Runnable() {
			@Override
			public void run() {
				try {
					HttpClient httpClient = new DefaultHttpClient();
					HttpGet httpGet = new HttpGet(
							"http://192.168.1.88:8080/jia/get_data.json");
					HttpResponse httpResponse = httpClient.execute(httpGet);
					/*
					 * HttpPost httpPost=new HttpPost(
					 * "http://192.168.1.201:8009/interface.PHP?action=get_index_xq"
					 * ); List<NameValuePair>params=new
					 * ArrayList<NameValuePair>(); params.add(new
					 * BasicNameValuePair("Goods_id","1"));
					 * UrlEncodedFormEntity entity=new
					 * UrlEncodedFormEntity(params,"utf-8");
					 * httpPost.setEntity(entity); HttpResponse
					 * httpResponse=httpClient.execute(httpPost);
					 */
					if (httpResponse.getStatusLine().getStatusCode() == 200) {
						// 请求和响应都成功啦
						HttpEntity httpentity = httpResponse.getEntity();
						String response = EntityUtils.toString(httpentity,"utf-8");

						Message message = new Message();
						message.what = SHOW_RESPONSE;
						// 将服务器返回的结果存放到Message中
						message.obj = response.toString();
						handler.sendMessage(message);
						// parseJSONWithGSON(response);
						parseJSONWithJSONObject(response);
					}
				} catch (Exception e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
			}

			private void parseJSONWithGSON(String jsonData) {
				Gson gson = new Gson();
				// List<App> appList = gson.fromJson(jsonData,new
				// TypeToken<List<App>>() {}.getType());
				App appList = gson.fromJson(jsonData,App.class);
				Log.d("jia","Brand_name is----------->" + appList.getBrand_name());
				Log.d("jia","Goods_burden is----------->"
								+ appList.getGoods_burden());
				Log.d("jia","Goods_degree is----------->"
								+ appList.getGoods_degree());
				Log.d("jia","Goods_img is----------->" + appList.getGoods_img());
				Log.d("jia","Goods_name is----------->" + appList.getGoods_name());
				Log.d("jia","Goods_one_price is----------->"
								+ appList.getGoods_one_price());
				Log.d("jia","Goods_place is----------->" + appList.getGoods_place());
				Log.d("jia","Goods_start_weight is----------->"
								+ appList.getGoods_start_weight());
				// for (App app : appList) {
				// Log.d("jia","Brand_name is----------->" +
				// app.getBrand_name());
				// Log.d("jia","Goods_burden is----------->" +
				// app.getGoods_burden());
				// Log.d("jia","Goods_degree is----------->" +
				// app.getGoods_degree());
				// Log.d("jia","Goods_img is----------->" +
				// app.getGoods_img());
				// Log.d("jia","Goods_name is----------->" +
				// app.getGoods_name());
				// Log.d("jia","Goods_one_price is----------->" +
				// app.getGoods_one_price());
				// Log.d("jia","Goods_place is----------->" +
				// app.getGoods_place());
				// Log.d("jia","Goods_start_weight is----------->" +
				// app.getGoods_start_weight());
				//
				// }
			}
		}).start();
	}

	private void parseJSONWithJSONObject(String jsonData) {
		try {
			JSONArray jsonArray = new JSONArray(jsonData);
			for (int i = 0; i < jsonArray.length(); i++) {
				JSONObject jsonObject = jsonArray.getJSONObject(i);
				String id = jsonObject.getString("id");
				String name = jsonObject.getString("name");
				String version = jsonObject.getString("version");
				Log.d("jia","id is--------->" + id);
				Log.d("jia","name is-------->" + name);
				Log.d("jia","version is------->" + version);
			}
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

	}
}
原文链接:https://www.f2er.com/json/289898.html

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