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Android 常用代码---WEB

发布时间:2016-12-5 20:28:45 编辑:www.fx114.net 分享查询网我要评论
本篇文章主要介绍了"Android 常用代码---WEB",主要涉及到Android 常用代码---WEB方面的内容,对于Android 常用代码---WEB感兴趣的同学可以参考一下。

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 objects JSONObject 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 answer URI myURL = new URI("www.website.org"); // The HTTP objects HttpClient httpClient = new DefaultHttpClient(); HttpGet getMethod = new HttpGet(myURL); HttpResponse httpResponse; // The query result String 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[]{"[email protected]"}); 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 result handleResult(result); 7 SOAP 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 results handleResults(results);

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