Android HttpClient网络通信

aliounian

1. package com.Aina.Android;
   
2. 
   
3. import java.io.BufferedReader;
   
4. import java.io.IOException;
   
5. import java.io.InputStream;
   
6. import java.io.InputStreamReader;
   
7. import java.io.UnsupportedEncodingException;
   
8. import java.net.HttpURLConnection;
   
9. import java.net.MalformedURLException;
   
10. import java.net.URL;
    
11. import java.util.ArrayList;
    
12. import java.util.List;
    
13. 
    
14. import org.apache.http.HttpEntity;
    
15. import org.apache.http.HttpResponse;
    
16. import org.apache.http.HttpStatus;
    
17. import org.apache.http.NameValuePair;
    
18. import org.apache.http.client.ClientProtocolException;
    
19. import org.apache.http.client.HttpClient;
    
20. import org.apache.http.client.entity.UrlEncodedFormEntity;
    
21. import org.apache.http.client.methods.HttpGet;
    
22. import org.apache.http.client.methods.HttpPost;
    
23. import org.apache.http.impl.client.DefaultHttpClient;
    
24. import org.apache.http.message.BasicNameValuePair;
    
25. import org.apache.http.util.EntityUtils;
    
26. 
    
27. import android.app.Activity;
    
28. import android.os.Bundle;
    
29. import android.os.Handler;
    
30. import android.os.Message;
    
31. import android.view.View;
    
32. import android.widget.Button;
    
33. import android.widget.TextView;
    
34. 
    
35. public class Test extends Activity implements Runnable {
    
36.     /** Called when the activity is first created. */
    
37.     private Button btn_get = null;
    
38.     private Button btn_post = null;
    
39.     private TextView tv_rp = null;
    
40. 
    
41.     @Override
    
42.         public void onCreate(Bundle savedInstanceState) {
    
43.             super.onCreate(savedInstanceState);
    
44.             setContentView(R.layout.main);
    
45.             btn_get = (Button) this.findViewById(R.id.Button01);
    
46.             btn_post = (Button) this.findViewById(R.id.Button02);
    
47.             tv_rp = (TextView) this.findViewById(R.id.TextView);
    
48.             btn_get.setOnClickListener(new Button.OnClickListener() {
    
49. 
    
50.                 public void onClick(View v) {
    
51.                     // TODO Auto-generated method stub
    
52.                     String httpUrl = "http://192.168.0.132:8080/Android/httpreq.jsp?par=request-get";
    
53.                     HttpGet request = new HttpGet(httpUrl);
    
54.                     HttpClient httpClient = new DefaultHttpClient();
    
55.                     try {
    
56.                         HttpResponse response = httpClient.execute(request);
    
57.                         if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
    
58.                             String str = EntityUtils.toString(response.getEntity());
    
59.                             tv_rp.setText(str);
    
60.                         } else {
    
61.                             tv_rp.setText("请求错误");
    
62.                         }
    
63.                     } catch (ClientProtocolException e) {
    
64.                         // TODO Auto-generated catch block
    
65.                         e.printStackTrace();
    
66.                     } catch (IOException e) {
    
67.                         // TODO Auto-generated catch block
    
68.                         e.printStackTrace();
    
69.                     }
    
70.                 }
    
71. 
    
72.             });
    
73.             btn_post.setOnClickListener(new Button.OnClickListener() {
    
74. 
    
75.                 public void onClick(View v) {
    
76.                     // TODO Auto-generated method stub
    
77.                     String httpUrl = "http://192.168.0.132:8080/Android/httpreq.jsp";
    
78.                     HttpPost request = new HttpPost(httpUrl);
    
79.                     List<NameValuePair> params = new ArrayList<NameValuePair>();
    
80.                     params.add(new BasicNameValuePair("par", "request-post"));
    
81.                     try {
    
82.                         HttpEntity entity = new UrlEncodedFormEntity(params,
    
83.                             "UTF-8");
    
84.                         request.setEntity(entity);
    
85.                         HttpClient client = new DefaultHttpClient();
    
86.                         HttpResponse response = client.execute(request);
    
87.                         if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
    
88.                             String str = EntityUtils.toString(response.getEntity());
    
89.                             tv_rp.setText(str);
    
90.                         } else {
    
91.                             tv_rp.setText("请求错误");
    
92.                         }
    
93.                     } catch (UnsupportedEncodingException e) {
    
94.                         // TODO Auto-generated catch block
    
95.                         e.printStackTrace();
    
96.                     } catch (ClientProtocolException e) {
    
97.                         // TODO Auto-generated catch block
    
98.                         e.printStackTrace();
    
99.                     } catch (IOException e) {
    
100.                         // TODO Auto-generated catch block
     
101.                         e.printStackTrace();
     
102.                     }
     
103.                 }
     
104. 
     
105.             });
     
106.             new Thread(this).start();
     
107.         }
     
108. 
     
109.     public void refresh() {
     
110.         String httpUrl = "http://192.168.0.132:8080/Android/httpreq.jsp";
     
111.         try {
     
112.             URL url = new URL(httpUrl);
     
113.             HttpURLConnection urlConn = (HttpURLConnection) url
     
114.                 .openConnection();
     
115.             urlConn.connect();
     
116.             InputStream input = urlConn.getInputStream();
     
117.             InputStreamReader inputreader = new InputStreamReader(input);
     
118.             BufferedReader reader = new BufferedReader(inputreader);
     
119.             String str = null;
     
120.             StringBuffer sb = new StringBuffer();
     
121.             while ((str = reader.readLine()) != null) {
     
122.                 sb.append(str).append("\n");
     
123.             }
     
124.             if (sb != null) {
     
125.                 tv_rp.setText(sb.toString());
     
126.             } else {
     
127.                 tv_rp.setText("NULL");
     
128.             }
     
129.             reader.close();
     
130.             inputreader.close();
     
131.             input.close();
     
132.             reader = null;
     
133.             inputreader = null;
     
134.             input = null;
     
135.         } catch (MalformedURLException e) {
     
136.             e.printStackTrace();
     
137.         } catch (IOException e) {
     
138.             // TODO Auto-generated catch block
     
139.             e.printStackTrace();
     
140.         }
     
141.     }
     
142. 
     
143.     public Handler handler = new Handler() {
     
144.         public void handleMessage(Message msg) {
     
145.             super.handleMessage(msg);
     
146.             refresh();
     
147.         }
     
148.     };
     
149. 
     
150.     public void run() {
     
151.         // TODO Auto-generated method stub
     
152.         while (true) {
     
153.             try {
     
154.                 Thread.sleep(1000);
     
155.                 handler.sendMessage(handler.obtainMessage());
     
156.             } catch (InterruptedException e) {
     
157.                 // TODO Auto-generated catch block
     
158.                 e.printStackTrace();
     
159.             }
     
160.         }
     
161.     }
     
162. }