转载参考:http://blog.csdn.net/h3c4lenovo/article/details/26568531
1 { 2 "testStr":"这是String的测试", 3 "testInt":12443, 4 "data": [ 5 { 6 "children": [ 7 { 8 "id": 10007, 9 "title": "北京", 10 "type": 1, 11 "url": "/10007/list_1.json" 12 }, 13 { 14 "id": 10105, 15 "title": "汽车", 16 "type": 1, 17 "url": "/10105/list_1.json" 18 } 19 ], 20 "id": 10000, 21 "title": "新闻", 22 "type": 1 23 }, 24 { 25 "id": 10002, 26 "title": "专题", 27 "type": 10, 28 "url": "/10006/list_1.json", 29 "url1": "/10007/list1_1.json" 30 }, 31 { 32 "id": 10003, 33 "title": "组图", 34 "type": 2, 35 "url": "/10008/list_1.json" 36 }, 37 { 38 "dayurl": "", 39 "excurl": "", 40 "id": 10004, 41 "title": "互动", 42 "type": 3, 43 "weekurl": "" 44 } 45 ], 46 "extend": [ 47 10007, 48 10006, 49 10008, 50 10014, 51 10012, 52 10091, 53 10009, 54 10010, 55 10095 56 ], 57 "retcode": 200 58 }
以下测试以上面这段JSON作为参考进行测试。
第三方JAR包:(阿里巴巴)fastjson-1.2.5.jar (谷歌)gson-2.2.4.jar
1 import android.app.Activity; 2 import android.os.Bundle; 3 import android.util.Log; 4 import com.alibaba.fastjson.JSON; 5 import com.google.gson.Gson; 6 import com.google.gson.reflect.TypeToken; 7 9 public class MainActivity extends Activity { 10 public final String TAG = "MainActivity"; 11 12 Gson my_gson = new Gson(); 13 java.lang.reflect.Type my_type = new TypeToken<TestBean1>() { 14 }.getType(); 15 16 @Override 17 protected void onCreate(Bundle savedInstanceState) { 18 super.onCreate(savedInstanceState); 19 setContentView(R.layout.activity_main); 20 21 new Thread(new Runnable() { 22 @Override 23 public void run() { 24 doSth(); 25 } 26 }).start(); 27 } 28 29 private void doSth() { 30 Log.i(TAG, "start..."); 31 try { 32 long startTime2 = System.currentTimeMillis(); 33 String json = LocalFileUtils.getStringFormAsset(this, "testbean1.json"); 34 for(int n = 0;n < 100000; n++) { 35 TestBean1 toBean = JSON.parseObject(json, TestBean1.class); 36 System.out.println(toBean); 37 } 38 long endTime2 = System.currentTimeMillis() - startTime2; 39 Log.i(TAG, "fastjson....." + endTime2); 40 41 42 long startTime4 = System.currentTimeMillis(); 43 String my_json = LocalFileUtils.getStringFormAsset(this, "testbean1.json"); 44 for (int n = 0; n < 100000; n++) { 45 // 使用JSON 操作 工具将JSON字符串封装到实体类 46 TestBean1 toBean = my_gson.fromJson(my_json, my_type); 47 System.out.println(toBean); 48 } 49 long endTime4 = System.currentTimeMillis() - startTime4; 50 Log.i(TAG, "gson....." + endTime4); 51 52 } catch (Exception e) { 53 e.printStackTrace(); 54 } 55 } 56 57 }
public class TestBean1 { public String testStr; public Integer testInt; public List<NewsItem> data; public List<Integer> extend; public int retcode; public class NewsItem { public List<NewsCategory> children; public int id; public String title; public int type; public String url; public String url1; public String dayurl; public String excurl; public String weekurl; public class NewsCategory { public int id; public String title; public int type; public String url; } } }
运行结果:
gson.....122298
fastjson.....138429
时间: 2024-11-04 07:06:24