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Android 经过http协议数据交互

分类: IT文章 • 2022-09-01 16:50:58
Android 通过http协议数据交互
方式一：HttpPost（import org.apache.http.client.methods.HttpPost）

java代码：

  2. private Button button1, button2, button3; 
  3. private TextView textView1; 


  6. button1.setOnClickListener(new Button.OnClickListener() { 


  9. @Override 

  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 = ; 


  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 { 


  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); 


  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. } 

  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：

  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(); 


  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..."; 


  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); 


  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(); 


  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. } 


  56. } 
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