json解析android客户端源码

Android客户端 Main类

package com.android.myjson; import java.util.List; import java.util.Map; import com.android.myjson.domain.Person; import com.android.myjson.http.HttpUtils; import com.android.myjson.json.JsonTools; import android.app.Activity; import android.os.Bundle; import android.util.Log; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.Toast; public class Main extends Activity implements OnClickListener { /** Called when the activity is first created. */ private Button person, persons, liststring, listmap; private static final String TAG = "Main"; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); person = (Button) this.findViewById(R.id.person); persons = (Button) this.findViewById(R.id.persons); liststring = (Button) this.findViewById(R.id.liststring); listmap = (Button) this.findViewById(R.id.listmap); person.setOnClickListener(this); persons.setOnClickListener(this); liststring.setOnClickListener(this); listmap.setOnClickListener(this); } @Override public void onClick(View v) { // TODO Auto-generated method stub switch (v.getId()) { case R.id.person: String path = "http://192.168.1.127:8080/json_service/servlet/JsonAction?action_flag=person"; String jsonString = HttpUtils.getJsonContent(path); Person person = JsonTools.getPerson("person", jsonString); System.out.println("====android客户端解析的数据的内容====="+person); Log.i(TAG, person.toString()); break; case R.id.persons: String path2 = "http://192.168.1.127:8080/json_service/servlet/JsonAction?action_flag=persons"; String jsonString2 = HttpUtils.getJsonContent(path2); List<Person> list2 = JsonTools.getPersons("persons", jsonString2); System.out.println("====android客户端解析的数据的内容====="+list2); Log.i(TAG, list2.toString()); break; case R.id.liststring: String path3 = "http://192.168.1.127:8080/json_service/servlet/JsonAction?action_flag=liststring"; String jsonString3 = HttpUtils.getJsonContent(path3); List<String> list3 = JsonTools.getList("liststring", jsonString3); Log.i(TAG, list3.toString()); break; case R.id.listmap: String path4 = "http://192.168.1.127:8080/json_service/servlet/JsonAction?action_flag=listmap"; String jsonString4 = HttpUtils.getJsonContent(path4); List<Map<String, Object>> list4 = JsonTools.listKeyMaps("listmap", jsonString4); Log.i(TAG, list4.toString()); break; } } }

Person类

packagecom.android.myjson.domain; publicclassPerson { privateintid; privateString name; publicPerson( intid, String name, String address) { super(); this.id = id; this.name = name; this.address = address; } privateString address; publicintgetId() { returnid; } @Override publicString toString() { return"Person [address=" + address + ", id=" + id + ", name=" + name + "]"; } publicvoidsetId( intid) { this.id = id; } publicString getName() { returnname; } publicvoidsetName(String name) { this.name = name; } publicString getAddress() { returnaddress; } publicvoidsetAddress(String address) { this.address = address; } publicPerson() { // TODOAuto-generated constructor stub } }

HttpUtils类

package com.android.myjson.http; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.InputStream; import java.net.HttpURLConnection; import java.net.URL; public class HttpUtils { public HttpUtils() { // TODO Auto-generated constructor stub } public static String getJsonContent(String url_path) { try { URL url = new URL(url_path); HttpURLConnection connection = (HttpURLConnection) url .openConnection(); connection.setConnectTimeout(3000); connection.setRequestMethod("GET"); connection.setDoInput(true); int code = connection.getResponseCode(); if (code == 200) { return changeInputStream(connection.getInputStream()); } } catch (Exception e) { // TODO: handle exception } return ""; } private static String changeInputStream(InputStream inputStream) { // TODO Auto-generated method stub String jsonString = ""; ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); int len = 0; byte[] data = new byte[1024]; try { while ((len = inputStream.read(data)) != -1) { outputStream.write(data, 0, len); } jsonString = new String(outputStream.toByteArray()); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } return jsonString; } }

JsonTools类

package com.android.myjson.json; import java.util.ArrayList; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Map; import org.json.JSONArray; import org.json.JSONObject; import com.android.myjson.domain.Person; /** *完成对json数据的解析 * * @author jack * */ public class JsonTools { public JsonTools() { // TODO Auto-generated constructor stub } public static Person getPerson(String key, String jsonString) { Person person = new Person(); try { JSONObject jsonObject = new JSONObject(jsonString); JSONObject personObject = jsonObject.getJSONObject("person"); person.setId(personObject.getInt("id")); person.setName(personObject.getString("name")); person.setAddress(personObject.getString("address")); } catch (Exception e) { // TODO: handle exception } return person; } public static List<Person> getPersons(String key, String jsonString) { List<Person> list = new ArrayList<Person>(); try { JSONObject jsonObject = new JSONObject(jsonString); //返回json的数组 JSONArray jsonArray = jsonObject.getJSONArray(key); for (int i = 0; i < jsonArray.length(); i++) { JSONObject jsonObject2 = jsonArray.getJSONObject(i); Person person = new Person(); person.setId(jsonObject2.getInt("id")); person.setName(jsonObject2.getString("name")); person.setAddress(jsonObject2.getString("address")); list.add(person); } } catch (Exception e) { // TODO: handle exception } return list; } public static List<String> getList(String key, String jsonString) { List<String> list = new ArrayList<String>(); try { JSONObject jsonObject = new JSONObject(jsonString); JSONArray jsonArray = jsonObject.getJSONArray(key); for (int i = 0; i < jsonArray.length(); i++) { String msg = jsonArray.getString(i); list.add(msg); } } catch (Exception e) { // TODO: handle exception } return list; } public static List<Map<String, Object>> listKeyMaps(String key, String jsonString) { List<Map<String, Object>> list = new ArrayList<Map<String, Object>>(); try { JSONObject jsonObject = new JSONObject(jsonString); JSONArray jsonArray = jsonObject.getJSONArray(key); for (int i = 0; i < jsonArray.length(); i++) { JSONObject jsonObject2 = jsonArray.getJSONObject(i); Map<String, Object> map = new HashMap<String, Object>(); Iterator<String> iterator = jsonObject2.keys(); while (iterator.hasNext()) { String json_key = iterator.next(); Object json_value = jsonObject2.get(json_key); if (json_value == null) { json_value = ""; } map.put(json_key, json_value); } list.add(map); } } catch (Exception e) { // TODO: handle exception } return list; } }

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