http 请求(登录，cookie)

public class SingleHttpClient {

	private static DefaultHttpClient httpClient = new DefaultHttpClient();
	private static SingleHttpClient shc = new SingleHttpClient();
	private static CookieStore cookieStore; //cookie本地cookie

	public static SingleHttpClient getInstance() {
		if (cookieStore != null) {
			httpClient.setCookieStore(cookieStore);
		}
		return shc;
	}

	private SingleHttpClient() {
		BasicHttpParams httpParams = (BasicHttpParams) httpClient.getParams();
		HttpConnectionParams.setConnectionTimeout(httpParams, 5000); 
		HttpConnectionParams.setSoTimeout(httpParams, 5000); 
	}

	/**
	 * 
	 * @param url
	 * @return
	 */
	public synchronized String httpGet(String param, Context context) {
		synchronized (httpClient) {
			if (!PublicUtil.isNetworkAvailable(context))
				return null;
			String url = PublicUtil.getWebRoot() + param; // 我的url
			String response = null;
			// 鍒涘缓HttpGet瀵硅薄
			HttpGet httpGet = new HttpGet(url);
			HttpResponse httpResponse;
			try {
				// 浣跨敤execute鏂规硶鍙戦?HTTP GET璇锋眰锛屽苟杩斿洖HttpResponse瀵硅薄
				long start = new Date().getTime();
				httpResponse = httpClient.execute(httpGet);
				long end = new Date().getTime();
				int statusCode = httpResponse.getStatusLine().getStatusCode();
				if (statusCode == HttpStatus.SC_OK) {
					response = EntityUtils.toString(httpResponse.getEntity(),
							"UTF-8");
				} else {
					PublicUtil.sendMessage(context, PublicUtil.NETWORK_BUSY); // 网络请求超时
				}
				cookieStore = httpClient.getCookieStore();
			} catch (Exception e) {
				e.printStackTrace();
			}
			System.out.println("response=" + response);
			return response;
		}
	}

	public HashMap<String, String> getResponse(Context context, String param) {
		HashMap<String, String> info = null;
		String response = httpGet(param, context);
		System.out.println("response==" + response);
		if (response != null) {
			info = new HashMap<String, String>();
			try {
				JSONObject jobj = new JSONObject(response);
				String code = jobj.getString("code");
				info.put("code", code);
				String msg = jobj.getString("msg");
				info.put("msg", msg);
				if (jobj.getString("data") != null) {
					String data = jobj.getString("data");
					info.put("data", data);
				}
				if (code.equals("-2")) {
					MultipartEntity mpEntity = new MultipartEntity(); 
					String account = "用户名";
					String loginKey = "密码";
						try {
							mpEntity.addPart("account", new StringBody(account));
							mpEntity.addPart("loginKey", new StringBody(
									loginKey));
							Log.i("tcp", "loginKey=" + loginKey);
						} catch (UnsupportedEncodingException e) {
							// TODO Auto-generated catch block
							e.printStackTrace();
						}
						HashMap<String, String> resp = getResponse(context, mpEntity, "/mobile/login");
						if(resp!=null&&resp.get("code").equals("0"))
						info = getResponse(context, param);
					}
				}
			} catch (Exception e) {
			}
		}
		return info;
	}

	public HashMap<String, String> getResponse(Context context,
			MultipartEntity entity, String url) {
		HashMap<String, String> info = null;
		String response = httpPost(url, entity, context);
		System.out.println("response==" + response);
		if (response != null) {
			info = new HashMap<String, String>();
			String code = null;
			try {
				JSONObject jobj = new JSONObject(response);
				code = jobj.getString("code");
				info.put("code", code);
				String msg = jobj.getString("msg");
				info.put("msg", msg);
				if (jobj.has("data")) {
					String data = jobj.getString("data");
					info.put("data", data);
				}
				if(code.equals("-1")){
					
				}else if (code.equals("-2")) {
					MultipartEntity mpEntity = new MultipartEntity(); 
					String account = "用户名"
					if (!account.equals("")
							&& PublicUtil.isNetworkAvailable(context)) {
						String loginKey = "密码";
						try {
							mpEntity.addPart("account", new StringBody(account));
							mpEntity.addPart("loginKey", new StringBody(
									loginKey));
							Log.i("tcp", "loginKey=" + loginKey);
						} catch (UnsupportedEncodingException e) {
							// TODO Auto-generated catch block
							e.printStackTrace();
						}
						HashMap<String, String> resp = getResponse(context, mpEntity, "/mobile/login");
						if(resp!=null&&resp.get("code").equals("0"))
						info = getResponse(context, mpEntity, url);
					}
				}
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
		return info;
	}

	/**
	 * 
	 * 
	 * @param url
	 * @param params
	 *           
	 * @return
	 * @throws Exception
	 */
	public String httpPost(String url, MultipartEntity entity, Context context) {
		synchronized (httpClient) {
			if (!PublicUtil.isNetworkAvailable(context))
				return null;
			String response = null;
			HttpPost httppost = new HttpPost(PublicVariable.webRoot + url);
			HashMap<String, String> map = (HashMap<String, String>) PublicUtil
					.getCallInfo(context).clone();
			map.put("path", url.split("\\?")[0]);
			map.put("reqSize", url.getBytes().length + "");
			Log.i("post", "post:"+ PublicVariable.webRoot+url);
			try {
				// httppost.setEntity(new UrlEncodedFormEntity(params,
				// HTTP.UTF_8));
				httppost.setEntity(entity);
				long start = new Date().getTime();
				// 浣跨敤execute鏂规硶鍙戯拷?HTTP Post璇锋眰锛屽苟杩斿洖HttpResponse瀵硅薄
				HttpResponse httpResponse = httpClient.execute(httppost);
				long end = new Date().getTime();
				map.put("totalConsumed", (end - start) + "");
				int statusCode = httpResponse.getStatusLine().getStatusCode();
				map.put("respStatus", statusCode + "");
				response = EntityUtils.toString(httpResponse.getEntity(),
						"UTF-8");
				Log.i("tcp",
						"statusCode=" + statusCode + ""
								+ response.replace("\n", ""));
				if (statusCode == HttpStatus.SC_OK) {
					
				} else {
					response = null;
					if(statusCode==500)
					PublicUtil.sendMessage(context, PublicUtil.NETWORK_BUSY);
				}
				cookieStore = httpClient.getCookieStore();
			} catch (Exception e) {
				e.printStackTrace();
			}
			
			return response;
		}
	}