android HttpURLConnection ,HttpClient设置Cookie
上一阶段项目设计使用cookie信息实现登录访问功能,在实现过程遇到一些问题,下面整理一下:
首先,client想使用cookie,必须访问一次server从会话中获取cookie信息,然后在设置回去,在android使用HttpURLConnection 直接设置会报异常
查阅文档及StackOver发现android需要使用CookieManager进行处理cookie相关信息,实现如下:
InputStream input = null; OutputStream output = null; HttpURLConnection connection = null; try { java.net.CookieManager manager = new java.net.CookieManager(); manager.setCookiePolicy(CookiePolicy.ACCEPT_ALL); CookieHandler.setDefault(manager); URL url = new URL(dnUrl); connection = (HttpURLConnection) url.openConnection(); connection.setRequestMethod("GET"); connection.connect(); connection.getHeaderFields(); CookieStore store = manager.getCookieStore(); int resultCode=connection.getResponseCode(); responseUpdateCookieHttpURL(store); // expect HTTP 200 OK, so we don't mistakenly save error report // instead of the file if (resultCode != HttpURLConnection.HTTP_OK) { return "Server returned HTTP " + connection.getResponseCode() + " " + connection.getResponseMessage(); }
/** * 更新本地Cookie信息 */ @SuppressLint("NewApi") @TargetApi(Build.VERSION_CODES.GINGERBREAD) public static void responseUpdateCookieHttpURL(CookieStore store) { boolean needUpdate = false; List<HttpCookie> cookies = store.getCookies(); HashMap<String, String> cookieMap = null; if (cookieMap == null) { cookieMap = new HashMap<String, String>(); } for (HttpCookie cookie : cookies) { String key = cookie.getName(); String value = cookie.getValue(); if (cookieMap.size() == 0 || !value.equals(cookieMap.get(key))) { needUpdate = true; } cookieMap.put(key, value); // BDebug.e(HTTP_COOKIE, cookie.getName() + "---->" + cookie.getDomain() + "------>" + cookie.getPath()); } }
public static final int GET = 0; public static final int POST = 1; public static final String HTTP_POST_BODY = "body"; public static final String HTTP_COOKIE = "Cookie"; public static final String HTTP_USER_AGENT = "User-Agent";
HttpClient实现更改设置Cookie信息:
void handleCookie(String url){ try{ HttpClient client = new DefaultHttpClient(); HttpGet httpget = new HttpGet(url); HttpResponse httpResponse = client.execute(httpget); int responseCode = httpResponse.getStatusLine().getStatusCode(); HttpBuilder.responseUpdateCookieHttpClient((DefaultHttpClient)client); if (responseCode == HttpStatus.SC_OK) { /*result = EntityUtils.toString(httpResponse.getEntity()); HttpEntity entity = response.getEntity(); InputStream is = entity.getContent();*/ } }catch(Exception e){ e.printStackTrace(); } }
/** * 获取cookie信息 * * @param cookieMap * @return */ public static String getCookieInfo(HashMap<String, String> cookieMap) { StringBuilder cookieInfo = new StringBuilder(); if (cookieMap != null && cookieMap.size() > 0) { Iterator<Entry<String, String>> iter = cookieMap.entrySet().iterator(); Entry<String, String> entry; while (iter.hasNext()) { String key = ""; String value = ""; entry = iter.next(); key = entry.getKey(); value = entry.getValue(); cookieInfo.append(key).append("=").append(value).append(";"); } } return cookieInfo.toString(); } /** * 更新本地Cookie信息 * * @param defaultHttpClient */ public static void responseUpdateCookieHttpClient(DefaultHttpClient defaultHttpClient) { boolean needUpdate = false; List<Cookie> cookies = defaultHttpClient.getCookieStore().getCookies(); HashMap<String, String> cookieMap = null; if (cookieMap == null) { cookieMap = new HashMap<String, String>(); } for (Cookie cookie : cookies) { String key = cookie.getName(); String value = cookie.getValue(); if (cookieMap.size() == 0 || !value.equals(cookieMap.get(key))) { needUpdate = true; } cookieMap.put(key, value); } }
基本就这些,有问题留言。