http請求傳回并解析json資料

Java代碼  

1. public class TestHttpActivity extends Activity {  
2.   private Button btn_get;  
3.   private Button btn_post;  
4.     @Override  
5.     public void onCreate(Bundle savedInstanceState) {  
6.         super.onCreate(savedInstanceState);  
7.         setContentView(R.layout.main);  
8.         btn_get=(Button)findViewById(R.id.btn_get);  
9.         btn_post=(Button)findViewById(R.id.btn_post);  
10.         btn_get.setOnClickListener(listener);  
11.         btn_post.setOnClickListener(listener);  
12.     }  
13.     private OnClickListener listener=new OnClickListener() {  
14.         @Override  
15.         public void onClick(View v) {  
16.             switch (v.getId()) {  
17.             case R.id.btn_post:  
18.                 Log.i("TestHttpActivity", "ok");  
19.                  DefaultHttpClient client = new DefaultHttpClient();   
20.                  List<NameValuePair> list = new ArrayList<NameValuePair>();    
21.                  NameValuePair pair1 = new BasicNameValuePair("name", "name0001");    
22.                  NameValuePair pair2 = new BasicNameValuePair("age", "age0001");    
23.                  list.add(pair1);    
24.                  list.add(pair2);    
25.                  UrlEncodedFormEntity entity=null;  
26.                 try {  
27.                     entity = new UrlEncodedFormEntity(list,"UTF-8");  
28.                 } catch (UnsupportedEncodingException e) {  
29.                     // TODO Auto-generated catch block  
30.                     e.printStackTrace();  
31.                 }    
32.                  HttpPost post = new HttpPost("http://aaron-pc.wsd.com/Test/testHttp");    
33.                  post.setEntity(entity);    
34.                  HttpResponse response=null;  
35.                  String strResult="";  
36.                 try {  
37.                     response = client.execute(post);  
38.                 } catch (ClientProtocolException e) {  
39.                     // TODO Auto-generated catch block  
40.                     e.printStackTrace();  
41.                 } catch (IOException e) {  
42.                     // TODO Auto-generated catch block  
43.                     e.printStackTrace();  
44.                 }    
45.                  if(response.getStatusLine().getStatusCode()==200){    
46.                     try {  
47.                            strResult = EntityUtils.toString(response.getEntity());     
48.                     } catch (IllegalStateException e) {  
49.                         // TODO Auto-generated catch block  
50.                         e.printStackTrace();  
51.                     } catch (IOException e) {  
52.                         // TODO Auto-generated catch block  
53.                         e.printStackTrace();  
54.                     }  
55.                      JSONObject jsonObject = null;  
56.                     try {  
57.                         jsonObject = getJSON(strResult);  
58.                     } catch (JSONException e1) {  
59.                         // TODO Auto-generated catch block  
60.                         e1.printStackTrace();  
61.                     }  
62.                      String names="";  
63.                      try {  
64.                          String data=jsonObject.getString("data");  
65.                          JSONObject jDat = new JSONObject(data);  
66.                          if(jDat.get("list")!=null){  
67.                              JSONArray jarr = jDat.getJSONArray("list");  
68.                          for (int i = 0; i < jarr.length(); i++) {  
69.                              JSONObject jsono = (JSONObject) jarr.get(i);   
70.                              names=names+jsono.getString("name");  
71.                         }  
72.                          }  
73.                         Toast.makeText(TestHttpActivity.this, "code:"+jsonObject.getString("code")+"name:"+names, Toast.LENGTH_SHORT).show();  
74.                     } catch (JSONException e) {  
75.                         // TODO Auto-generated catch block  
76.                         e.printStackTrace();  
77.                     }    
78.                  }    
79.                  else Toast.makeText(TestHttpActivity.this, "POST送出失敗", Toast.LENGTH_SHORT).show();    
80.                 break;  
81.             case R.id.btn_get:  
82.                  DefaultHttpClient client1 = new DefaultHttpClient();   
83.                  UrlEncodedFormEntity entity1=null;  
84.                  HttpGet get = new HttpGet("http://aaron-pc.wsd.com/Test/testHttp");    
85.                  HttpResponse response1=null;  
86.                  String strResult1="";  
87.                 try {  
88.                     response1 = client1.execute(get);  
89.                 } catch (ClientProtocolException e) {  
90.                     // TODO Auto-generated catch block  
91.                     e.printStackTrace();  
92.                 } catch (IOException e) {  
93.                     // TODO Auto-generated catch block  
94.                     e.printStackTrace();  
95.                 }    
96.                  if(response1.getStatusLine().getStatusCode()==200){    
97.                     try {  
98.                            strResult1 = EntityUtils.toString(response1.getEntity());     
99.                     } catch (IllegalStateException e) {  
100.                         // TODO Auto-generated catch block  
101.                         e.printStackTrace();  
102.                     } catch (IOException e) {  
103.                         // TODO Auto-generated catch block  
104.                         e.printStackTrace();  
105.                     }  
106.                      JSONObject jsonObject1 = null;  
107.                     try {  
108.                         jsonObject1 = getJSON(strResult1);  
109.                     } catch (JSONException e1) {  
110.                         // TODO Auto-generated catch block  
111.                         e1.printStackTrace();  
112.                     }  
113.                      String names="";  
114.                      try {  
115.                          String data=jsonObject1.getString("data");  
116.                          JSONObject jDat1 = new JSONObject(data);  
117.                          if(jDat1.get("list")!=null){  
118.                              JSONArray jarr1 = jDat1.getJSONArray("list");  
119.                          for (int i = 0; i < jarr1.length(); i++) {  
120.                              JSONObject jsono = (JSONObject) jarr1.get(i);   
121.                              names=names+jsono.getString("name");  
122.                         }  
123.                          }  
124.                         Toast.makeText(TestHttpActivity.this,  "get請求： code:"+jsonObject1.getString("code")+"name:"+names, Toast.LENGTH_SHORT).show();  
125.                     } catch (JSONException e) {  
126.                         // TODO Auto-generated catch block  
127.                         e.printStackTrace();  
128.                     }    
129.                  }    
130.                  else Toast.makeText(TestHttpActivity.this, "get送出失敗", Toast.LENGTH_SHORT).show();    
131.                 break;  
132.             }  
133.         }  
134.     };  
135.     public JSONObject getJSON(String sb) throws JSONException {    
136.         return new JSONObject(sb);    
137.     }   
138. }  

http://284772894.iteye.com/blog/1744114