android 上传数据到web

	private boolean sendSMS(String content, String receiveTime, String senderNumber) {
		try {
			String params = "content=" + URLEncoder.encode(content, "UTF-8") + 
							"&receivetime=" + receiveTime + "&sendernumber=" + senderNumber;
			byte[] entity = params.getBytes();
			String path = "http://192.168.1.55:8080/application/ReceiverServlet";
			URL url = new URL(path);
			HttpURLConnection conn = (HttpURLConnection) url.openConnection();
			conn.setRequestMethod("POST");
			conn.setConnectTimeout(5000);
			conn.setDoOutput(true);
			conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
			conn.setRequestProperty("Content-Length", String.valueOf(entity.length));
			conn.getOutputStream().write(entity);
			if(conn.getResponseCode() == 200){
				return true;
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
		return false;
	}

	public static List<Contact> getContacts() throws Exception{
		String url = "http://192.168.1.77:8080/web/list.xml";
		HttpURLConnection conn = (HttpURLConnection)new URL(url).openConnection();
		conn.setConnectTimeout(5000);
		conn.setRequestMethod("GET");
		if(conn.getResponseCode() == HttpURLConnection.HTTP_OK){
			//TODO
		}
		return null;
	}