/**
 * @author Dylan
 * 本類封裝了Android中向web服務器提交數據的兩種方式四種方法
 */
public class SubmitDataByHttpClientAndOrdinaryWay {

 /**
 * 使用get請求以普通方式提交數據
 * @param map 傳遞進來的數據，以map的形式進行了封裝
 * @param path 要求服務器servlet的地址
 * @return 返回的boolean類型的參數
 * @throws Exception
 */
 public Boolean submitDataByDoGet(Map<String, String> map, String path) throws Exception {
 // 拼湊出請求地址
 StringBuilder sb = new StringBuilder(path);
 sb.append("?");
 for (Map.Entry<String, String> entry : map.entrySet()) {
  sb.append(entry.getKey()).append("=").append(entry.getValue());
  sb.append("&");
 }
 sb.deleteCharAt(sb.length() - 1);
 String str = sb.toString();
 System.out.println(str);
 URL Url = new URL(str);
 HttpURLConnection HttpConn = (HttpURLConnection) Url.openConnection();
 HttpConn.setRequestMethod("GET");
 HttpConn.setReadTimeout(5000);
 // GET方式的請求不用設置什么DoOutPut()之類的嗎？
 if (HttpConn.getResponseCode() == HttpURLConnection.HTTP_OK) {
  return true;
 }
 return false;
 }

 /**
 * 普通方式的DoPost請求提交數據
 * @param map 傳遞進來的數據，以map的形式進行了封裝
 * @param path 要求服務器servlet的地址
 * @return 返回的boolean類型的參數
 * @throws Exception
 */
 public Boolean submitDataByDoPost(Map<String, String> map, String path) throws Exception {
 // 注意Post地址中是不帶參數的，所以newURL的時候要注意不能加上后面的參數
 URL Url = new URL(path);
 // Post方式提交的時候參數和URL是分開提交的，參數形式是這樣子的：name=y&age=6
 StringBuilder sb = new StringBuilder();
 // sb.append("?");
 for (Map.Entry<String, String> entry : map.entrySet()) {
  sb.append(entry.getKey()).append("=").append(entry.getValue());
  sb.append("&");
 }
 sb.deleteCharAt(sb.length() - 1);
 String str = sb.toString();

 HttpURLConnection HttpConn = (HttpURLConnection) Url.openConnection();
 HttpConn.setRequestMethod("POST");
 HttpConn.setReadTimeout(5000);
 HttpConn.setDoOutput(true);
 HttpConn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
 HttpConn.setRequestProperty("Content-Length", String.valueOf(str.getBytes().length));
 OutputStream os = HttpConn.getOutputStream();
 os.write(str.getBytes());
 if (HttpConn.getResponseCode() == HttpURLConnection.HTTP_OK) {
  return true;
 }
 return false;
 }

 /**
 * 以HttpClient的DoGet方式向服務器發(fā)送請數據
 * @param map 傳遞進來的數據，以map的形式進行了封裝
 * @param path 要求服務器servlet的地址
 * @return 返回的boolean類型的參數
 * @throws Exception
 */
 public Boolean submitDataByHttpClientDoGet(Map<String, String> map, String path) throws Exception {
 HttpClient hc = new DefaultHttpClient();
 // 請求路徑
 StringBuilder sb = new StringBuilder(path);
 sb.append("?");
 for (Map.Entry<String, String> entry : map.entrySet()) {
  sb.append(entry.getKey()).append("=").append(entry.getValue());
  sb.append("&");
 }
 sb.deleteCharAt(sb.length() - 1);
 String str = sb.toString();
 System.out.println(str);
 HttpGet request = new HttpGet(sb.toString());

 HttpResponse response = hc.execute(request);
 if (response.getStatusLine().getStatusCode() == HttpURLConnection.HTTP_OK) {
  return true;
 }
 return false;
 }
 
 /**
 * 以HttpClient的DoPost方式提交數據到服務器
 * @param map 傳遞進來的數據，以map的形式進行了封裝
 * @param path 要求服務器servlet的地址
 * @return 返回的boolean類型的參數
 * @throws Exception
 */
 public Boolean submintDataByHttpClientDoPost(Map<String, String> map, String path) throws Exception {
 // 1. 獲得一個相當于瀏覽器對象HttpClient，使用這個接口的實現類來創(chuàng)建對象，DefaultHttpClient
 HttpClient hc = new DefaultHttpClient();
 // DoPost方式請求的時候設置請求，關鍵是路徑
 HttpPost request = new HttpPost(path);
 // 2. 為請求設置請求參數，也即是將要上傳到web服務器上的參數
 List<NameValuePair> parameters = new ArrayList<NameValuePair>();
 for (Map.Entry<String, String> entry : map.entrySet()) {
  NameValuePair nameValuePairs = new BasicNameValuePair(entry.getKey(), entry.getValue());
  parameters.add(nameValuePairs);
 }
 // 請求實體HttpEntity也是一個接口，我們用它的實現類UrlEncodedFormEntity來創(chuàng)建對象，注意后面一個String類型的參數是用來指定編碼的
 HttpEntity entity = new UrlEncodedFormEntity(parameters, "UTF-8");
 request.setEntity(entity);
 // 3. 執(zhí)行請求
 HttpResponse response = hc.execute(request);
 // 4. 通過返回碼來判斷請求成功與否
 if (response.getStatusLine().getStatusCode() == HttpURLConnection.HTTP_OK) {
  return true;
 }
 return false;
 }
}