Android 通过http协议数据交互
方式一:HttpPost(import org.apache.http.client.methods.HttpPost)
java代码:
-
- private Button button1, button2, button3;
- private TextView textView1;
-
-
- button1.setOnClickListener(new Button.OnClickListener() {
-
-
- @Override
-
- public void onClick(View arg0) {
- // TODO Auto-generated method stub
- // URLַ
- // String uriAPI =
- // "http://www.dubblogs.cc:8751/Android/Test/API/Post/index.php";
- String uriAPI = ;
-
-
- /* 建立HTTP Post连线 */
- HttpPost httpRequest = new HttpPost(uriAPI);
- // Post运作传送变数必须用NameValuePair[]阵列储存
- // 传参数 服务端获取的方法为request.getParameter("name")
- List<NameValuePair> params = new ArrayList<NameValuePair>();
- params.add(new BasicNameValuePair("name", "this is post"));
- try {
-
-
- // 发出HTTP request
- httpRequest.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));
- // 取得HTTP response
- HttpResponse httpResponse = new DefaultHttpClient().execute(httpRequest);
-
-
- // 若状态码为200 ok
- if (httpResponse.getStatusLine().getStatusCode() == 200) {
- // 取出回应字串
- String strResult = EntityUtils.toString(httpResponse.getEntity());
- textView1.setText(strResult);
- } else {
- textView1.setText("Error Response" + httpResponse.getStatusLine().toString());
- }
- } catch (ClientProtocolException e) {
- textView1.setText(e.getMessage().toString());
- e.printStackTrace();
- } catch (UnsupportedEncodingException e) {
- textView1.setText(e.getMessage().toString());
- e.printStackTrace();
- } catch (IOException e) {
- textView1.setText(e.getMessage().toString());
- e.printStackTrace();
- }
- }
-
- });
方式二:HttpURLConnection、URL(import java.net.HttpURLConnection;import java.net.URL;import java.net.URLEncoder;)
java代码:
-
- private void httpUrlConnection() {
- try {
- String pathUrl = "http://172.20.0.206:8082/TestServelt/login.do";
- // 建立连接
- URL url = new URL(pathUrl);
- HttpURLConnection httpConn = (HttpURLConnection) url.openConnection();
-
-
- // //设置连接属性
- httpConn.setDoOutput(true);// 使用 URL 连接进行输出
- httpConn.setDoInput(true);// 使用 URL 连接进行输入
- httpConn.setUseCaches(false);// 忽略缓存
- httpConn.setRequestMethod("POST");// 设置URL请求方法
- String requestString = "客服端要以以流方式发送到服务端的数据...";
-
-
- // 设置请求属性
- // 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
- byte[] requestStringBytes = requestString.getBytes(ENCODING_UTF_8);
- httpConn.setRequestProperty("Content-length", "" + requestStringBytes.length);
- httpConn.setRequestProperty("Content-Type", "application/octet-stream");
- httpConn.setRequestProperty("Connection", "Keep-Alive");// 维持长连接
- httpConn.setRequestProperty("Charset", "UTF-8");
- //
- String name = URLEncoder.encode("黄武艺", "utf-8");
- httpConn.setRequestProperty("NAME", name);
-
-
- // 建立输出流,并写入数据
- OutputStream outputStream = httpConn.getOutputStream();
- outputStream.write(requestStringBytes);
- outputStream.close();
- // 获得响应状态
- int responseCode = httpConn.getResponseCode();
-
-
- if (HttpURLConnection.HTTP_OK == responseCode) {// 连接成功
- // 当正确响应时处理数据
- StringBuffer sb = new StringBuffer();
- String readLine;
- BufferedReader responseReader;
- // 处理响应流,必须与服务器响应流输出的编码一致
- responseReader = new BufferedReader(new InputStreamReader(httpConn.getInputStream(), ENCODING_UTF_8));
- while ((readLine = responseReader.readLine()) != null) {
- sb.append(readLine).append("\n");
- }
- responseReader.close();
- tv.setText(sb.toString());
- }
- } catch (Exception ex) {
- ex.printStackTrace();
- }
-
-
- }