Android 通过http协议数据交互

方式一：HttpPost（import org.apache.http.client.methods.HttpPost）

java代码：

1. 
   
2. private Button button1, button2, button3; 
   
3. private TextView textView1; 
   
4. 
   
5. 
   
6. button1.setOnClickListener(new Button.OnClickListener() { 
   
7. 
   
8. 
   
9. @Override 
   
10. 
    
11. public void onClick(View arg0) { 
    
12. // TODO Auto-generated method stub 
    
13. // URLַ 
    
14. // String uriAPI = 
    
15. // "http://www.dubblogs.cc:8751/Android/Test/API/Post/index.php"; 
    
16. String uriAPI = ; 
    
17. 
    
18. 
    
19. /* 建立HTTP Post连线 */ 
    
20. HttpPost httpRequest = new HttpPost(uriAPI); 
    
21. // Post运作传送变数必须用NameValuePair[]阵列储存 
    
22. // 传参数 服务端获取的方法为request.getParameter("name") 
    
23. List<NameValuePair> params = new ArrayList<NameValuePair>(); 
    
24. params.add(new BasicNameValuePair("name", "this is post")); 
    
25. try { 
    
26. 
    
27. 
    
28. // 发出HTTP request 
    
29. httpRequest.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8)); 
    
30. // 取得HTTP response 
    
31. HttpResponse httpResponse = new DefaultHttpClient().execute(httpRequest); 
    
32. 
    
33. 
    
34. // 若状态码为200 ok 
    
35. if (httpResponse.getStatusLine().getStatusCode() == 200) { 
    
36. // 取出回应字串 
    
37. String strResult = EntityUtils.toString(httpResponse.getEntity()); 
    
38. textView1.setText(strResult); 
    
39. } else { 
    
40. textView1.setText("Error Response" + httpResponse.getStatusLine().toString()); 
    
41. } 
    
42. } catch (ClientProtocolException e) { 
    
43. textView1.setText(e.getMessage().toString()); 
    
44. e.printStackTrace(); 
    
45. } catch (UnsupportedEncodingException e) { 
    
46. textView1.setText(e.getMessage().toString()); 
    
47. e.printStackTrace(); 
    
48. } catch (IOException e) { 
    
49. textView1.setText(e.getMessage().toString()); 
    
50. e.printStackTrace(); 
    
51. } 
    
52. } 
    
53. 
    
54. }); 
    

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       方式二：HttpURLConnection、URL(import java.net.HttpURLConnection;import java.net.URL;import java.net.URLEncoder;)

java代码：

1. 
   
2. private void httpUrlConnection() { 
   
3. try { 
   
4. String pathUrl = "http://172.20.0.206:8082/TestServelt/login.do"; 
   
5. // 建立连接 
   
6. URL url = new URL(pathUrl); 
   
7. HttpURLConnection httpConn = (HttpURLConnection) url.openConnection(); 
   
8. 
   
9. 
   
10. // //设置连接属性 
    
11. httpConn.setDoOutput(true);// 使用 URL 连接进行输出 
    
12. httpConn.setDoInput(true);// 使用 URL 连接进行输入 
    
13. httpConn.setUseCaches(false);// 忽略缓存 
    
14. httpConn.setRequestMethod("POST");// 设置URL请求方法 
    
15. String requestString = "客服端要以以流方式发送到服务端的数据..."; 
    
16. 
    
17. 
    
18. // 设置请求属性 
    
19. // 获得数据字节数据，请求数据流的编码，必须和下面服务器端处理请求流的编码一致 
    
20. byte[] requestStringBytes = requestString.getBytes(ENCODING_UTF_8); 
    
21. httpConn.setRequestProperty("Content-length", "" + requestStringBytes.length); 
    
22. httpConn.setRequestProperty("Content-Type", "application/octet-stream"); 
    
23. httpConn.setRequestProperty("Connection", "Keep-Alive");// 维持长连接 
    
24. httpConn.setRequestProperty("Charset", "UTF-8"); 
    
25. // 
    
26. String name = URLEncoder.encode("黄武艺", "utf-8"); 
    
27. httpConn.setRequestProperty("NAME", name); 
    
28. 
    
29. 
    
30. // 建立输出流，并写入数据 
    
31. OutputStream outputStream = httpConn.getOutputStream(); 
    
32. outputStream.write(requestStringBytes); 
    
33. outputStream.close(); 
    
34. // 获得响应状态 
    
35. int responseCode = httpConn.getResponseCode(); 
    
36. 
    
37. 
    
38. if (HttpURLConnection.HTTP_OK == responseCode) {// 连接成功 
    
39. // 当正确响应时处理数据 
    
40. StringBuffer sb = new StringBuffer(); 
    
41. String readLine; 
    
42. BufferedReader responseReader; 
    
43. // 处理响应流，必须与服务器响应流输出的编码一致 
    
44. responseReader = new BufferedReader(new InputStreamReader(httpConn.getInputStream(), ENCODING_UTF_8)); 
    
45. while ((readLine = responseReader.readLine()) != null) { 
    
46. sb.append(readLine).append("\n"); 
    
47. } 
    
48. responseReader.close(); 
    
49. tv.setText(sb.toString()); 
    
50. } 
    
51. } catch (Exception ex) { 
    
52. ex.printStackTrace(); 
    
53. } 
    
54. 
    
55. 
    
56. } 
    

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