Android 常用代码---WEB

1执行 GET 请求权限<uses-permission android:name="android.permission.INTERNET"/>代码URI myURI = null;try { myURI = new URI("www.webserver.org");} catch (URISyntaxException e) { // Deal with it}HttpClient httpClient = new DefaultHttpClient();HttpGet getMethod = new HttpGet(myURI);HttpResponse webServerResponse = null;try { webServerResponse = httpClient.execute(getMethod);} catch (ClientProtocolException e) { // Deal with it} catch (IOException e) { // Deal with it}HttpEntity httpEntity = webServerResponse.getEntity();if (httpEntity != null) { // You have your response, handle it. For instance, with a input // stream // InputStream input = entity.getContent();}2执行 POST 请求权限<uses-permission android:name="android.permission.INTERNET"/>代码// Create the Apache HTTP client and post  HttpClient httpclient = new DefaultHttpClient(); HttpPost httppost = new HttpPost("http://www.website.org/service.php");      try {         // Add data to your post     List<NameValuePair> pairs = new ArrayList<NameValuePair>(2);      pairs.add(new BasicNameValuePair("ID", "VALUE"));     pairs.add(new BasicNameValuePair("string", "Yeah!"));     httppost.setEntity(new UrlEncodedFormEntity(pairs));     //Finally, execute the request      HttpResponse webServerAnswer = httpclient.execute(httppost);  } catch (ClientProtocolException e) {      //Deal with it  } catch (IOException e) {     //Deal with it }3从服务器响应检索 JSON 权限<uses-permission android:name="android.permission.INTERNET"/>代码// The JSON objectsJSONObject myJSON = null;JSONArray names = null;JSONArray values = null;String restWebServerResponse = "TheResponse";try{        myJSON = new JSONObject(restWebServerResponse);         names = myJSON.names();         values = myJSON.toJSONArray(names); }catch (JSONException e) {        // Deal with it} for (int i = 0; i < values.length(); i++) {   // Do something with the values.getString(i)}4使用 GET 请求查询 Web 服务器中的 REST 响应权限<uses-permission android:name="android.permission.INTERNET"/>代码// This assumes that you have a URL from which to get the answerURI myURL = new URI("www.website.org");// The HTTP objectsHttpClient httpClient = new DefaultHttpClient();HttpGet getMethod = new HttpGet(myURL);HttpResponse httpResponse;// The query resultString result = null;try { httpResponse = httpClient.execute(getMethod); // You might want to check response.getStatusLine().toString() HttpEntity entity = httpResponse.getEntity(); if (entity != null) {  InputStream instream = entity.getContent();  BufferedReader reader = new BufferedReader( new InputStreamReader(instream));  StringBuilder sb = new StringBuilder();  String line = null; try {  while ((line = reader.readLine()) != null) {   sb.append(line + "\n");  } } catch (IOException e) { // Deal with it } finally {  try {   instream.close();  } catch (IOException e) {  // Deal with it  } } // Handle the result (for instance, get a JSON object // using the "Retrieve JSON from a server response" snippet) handleResult(result); }} catch (ClientProtocolException e) { // Deal with it} catch (IOException e) { // Deal with it}5发送电子邮件权限<uses-permission android:name="android.permission.INTERNET"/>代码Intent emailIntent = new Intent(android.content.Intent.ACTION_SEND);emailIntent.setType("plain/text");  emailIntent.putExtra(android.content.Intent.EXTRA_EMAIL, new String[]{"[e-mail]"});emailIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, "Hello, MOTO!");  emailIntent.putExtra(android.content.Intent.EXTRA_TEXT, "Hello, MOTO!"); startActivity(Intent.createChooser(emailIntent, "Send mail..."));6从 URL 检索日期权限<uses-permission android:name="android.permission.INTERNET"/>代码// The data that is retrieved String result = null;try {     // This assumes that you have a URL from which the response will come     URL url = new URL("www.webaddress.org");     // Open a connection to the URL and obtain a buffered input stream     URLConnection connection = url.openConnection();     InputStream inputStream = connection.getInputStream();     BufferedInputStream bufferedInput = new BufferedInputStream(inputStream);     // Read the response into a byte array     ByteArrayBuffer byteArray = new ByteArrayBuffer(50);     int current = 0;     while((current = bufferedInput.read()) != -1){          byteArray.append((byte)current);     }     // Construct a String object from the byte array containing the response     result = new String(byteArray.toByteArray());} catch (Exception e) {}// Handle the resulthandleResult(result);7SOAP 示例权限<uses-permission android:name="android.permission.INTERNET"/>代码/* This example is intended to be used with the KSoap  * project (http://ksoap2.sourceforge.net/), which * provides some objects to deal with SOAP within  * mobile development. *  * You must download the KSoap objects and  * have something like this in your import list: * import org.ksoap2.SoapEnvelope; // (and other necessary classes) */String SOAP_ACTION = "yourMethod";String METHOD_NAME = "yourMethod";String NAMESPACE = "http://namespace.com/";String URL = "http://server.org";SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);request.addProperty("property1", "property");SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);envelope.setOutputSoapObject(request);HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);androidHttpTransport.call(SOAP_ACTION, envelope);Object results = envelope.getResponse();// Handle the resultshandleResults(results);