用HttpPost登陸驗證時，用戶名和密碼放在請求頭部header中的處理方法，形式爲Authorization: username password。



post.setHeader("Authorization", "your token");

這裏主要是要搞清楚your token是什麼，把認證信息傳遞正確，這個認證信息是通過用戶名和密碼來確定的

	public static User getUserData(String url,String userName,String userPass){
		 //1.創建 HttpClient 的實例  
	try {
		BasicHttpParams httpParams = new BasicHttpParams();
		HttpConnectionParams.setConnectionTimeout(httpParams, 20 * 1000);
		HttpConnectionParams.setSoTimeout(httpParams, 20 * 1000);
		DefaultHttpClient client = new DefaultHttpClient(httpParams);
		HttpPost post = new HttpPost(url);
		post.setHeader("Content-Type", "application/json");
		//使用base64進行加密
		byte[] tokenByte = Base64.encodeBase64((userName+":"+userPass).getBytes());
		//將加密的信息轉換爲string
		String tokenStr = DataTypeChange.bytesSub2String(tokenByte, 0, tokenByte.length);
		//Basic YFUDIBGDJHFK78HFJDHF==    token的格式
		String token = "Basic "+tokenStr;
		//把認證信息發到header中
		post.setHeader("Authorization", "Basic "+token);
		HttpResponse response = client.execute(post);
		int statusCode = response.getStatusLine().getStatusCode();
		String retSrc = EntityUtils.toString(response.getEntity(), "utf-8");
		Log.i("Tag", "url=="+url);
		Log.i("Tag", "===statuscode==="+statusCode+"===retsrc==="+retSrc);
	} catch (UnsupportedEncodingException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	} catch (ClientProtocolException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	} catch (IOException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}



		return null;
	}

有些是通過post json數據來傳遞用戶名和密碼進行登陸的

還可以通過HttpGet來驗證登陸，這種情況下url中帶有用戶名和密碼的信息