Android上解析Json格式数据

 1 package com.practice.json;
 2 
 3 import org.json.JSONArray;
 4 import org.json.JSONException;
 5 import org.json.JSONObject;
 6 
 7 import android.app.Activity;
 8 import android.os.Bundle;
 9 import android.util.Log;
10 
11 public class JsonDemo extends Activity {
12     /*
13      * 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 
14     */
15     
16     String TAG = "Json message";
17     
18     @Override
19     public void onCreate(Bundle savedInstanceState) {
20         super.onCreate(savedInstanceState);
21         setContentView(R.layout.main);
22         detectJSON();
23     }
24     
25     private void detectJSON() {
26         String str = "{"+
27         
28           ""日期" : "2011-06-06","+
29 
30           //Like 是 JSONObject
31           ""Like" : {"+
32             ""Name" : "加内特","+
33             ""Height" : "2.11cm","+ 
34             ""Age" : 35"+
35           "},"+
36         
37           //LikeList 就是一个 JSONObject
38           ""LikeList":" +
39               "{"List": " +
40               "["+
41                     //这里也是JSONObject
42                   "{"+
43                     ""Name" : "Rose","+
44                     ""Height" : "190cm","+ 
45                     ""Age" : 23"+
46                   "},"+
47                   //这里也是JSONObject
48                   "{"+
49                     ""Name" : "科比","+
50                     ""Height" : "198cm","+ 
51                     ""Age" : 33"+
52                   "}"+
53               "]"+
54               "}"+
55           "}";
56         
57         try {
58             JSONObject dataJson = new JSONObject(str);
59             Log.d(TAG, dataJson.getString("日期"));
60             
61             JSONObject nbaJson = dataJson.getJSONObject("Like");
62         
63             Log.d(TAG, nbaJson.getString("Name"));
64             Log.d(TAG, nbaJson.getString("Height"));
65             Log.d(TAG, nbaJson.get("Age").toString());
66             
67             JSONObject listJson = dataJson.getJSONObject("LikeList");
68             JSONArray arrayJson = listJson.getJSONArray("List");
69             
70             for(int i=0;i<arrayJson.length();i++) {
71                 
72                 JSONObject tempJson = arrayJson.optJSONObject(i);
73                 
74                 Log.d(TAG, tempJson.getString("Name"));
75                 Log.d(TAG, tempJson.getString("Height"));
76                 Log.d(TAG, tempJson.getString("Age").toString());    
77             }
78             
79             
80         } catch (JSONException e) {
81             System.out.println("Something wrong...");
82             e.printStackTrace();
83         }
84     }
85 }

View Code

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。

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