Android上解析Json格式数据

 package com.practice.json;

 import org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;

 import android.app.Activity;
 import android.os.Bundle;
 import android.util.Log;

 public class JsonDemo extends Activity {
     /*
      * 解析JSON的例子，str保存的是JSON代码，解析后的数据在LogCat里输出
     */

     String TAG = "Json message";

     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.main);
         detectJSON();
     }

     private void detectJSON() {
         String str = "{"+

           "\"日期\" : \"2011-06-06\","+

           //Like 是 JSONObject
           "\"Like\" : {"+
             "\"Name\" : \"加内特\","+
             "\"Height\" : \"2.11cm\","+
             "\"Age\" : 35"+
           "},"+

           //LikeList 就是一个 JSONObject
           "\"LikeList\":" +
               "{\"List\": " +
               "["+
                     //这里也是JSONObject
                   "{"+
                     "\"Name\" : \"Rose\","+
                     "\"Height\" : \"190cm\","+
                     "\"Age\" : 23"+
                   "},"+
                   //这里也是JSONObject
                   "{"+
                     "\"Name\" : \"科比\","+
                     "\"Height\" : \"198cm\","+
                     "\"Age\" : 33"+
                   "}"+
               "]"+
               "}"+
           "}";

         try {
             JSONObject dataJson = new JSONObject(str);
             Log.d(TAG, dataJson.getString("日期"));

             JSONObject nbaJson = dataJson.getJSONObject("Like");

             Log.d(TAG, nbaJson.getString("Name"));
             Log.d(TAG, nbaJson.getString("Height"));
             Log.d(TAG, nbaJson.get("Age").toString());

             JSONObject listJson = dataJson.getJSONObject("LikeList");
             JSONArray arrayJson = listJson.getJSONArray("List");

             for(int i=0;i<arrayJson.length();i++) {

                 JSONObject tempJson = arrayJson.optJSONObject(i);

                 Log.d(TAG, tempJson.getString("Name"));
                 Log.d(TAG, tempJson.getString("Height"));
                 Log.d(TAG, tempJson.getString("Age").toString());
             }

         } catch (JSONException e) {
             System.out.println("Something wrong...");
             e.printStackTrace();
         }
     }
 }

测试代码通过

Add following code to AndroidManifest.
<instrumentation android:name="android.test.InstrumentationTestRunner"
          android:targetPackage="your.package"
          android:label="your tests label" />
<uses-library android:name="android.test.runner" />

- Right click project on Project Explorer Panel on Eclipse, then click "Run" > "Run Configurations...", then select "android.test.InstrumentationTestRunner" in Instrumentation TestRunner.

does not declare uses-library android.test.runner

在平时Android开发时突然执行程序，出现了 Application does not specify a
android.test.InstrumentationTestRunner instrumentation or does not declare
uses-library android.test.runner的错误提示，这主要是你再Run As中错误的选择了目标为Android JUnit
Test这项导致的，解决的方法也很简单在Run Dialog中删除JUnit Test这条即可。