我已经开始使用推荐HTTPUrlConnection并远离DefaultHTTPClient. 我无法重新组合在一起的一件事是使用持久性 cookie 存储。我想简单地将自定义 cookie 处理程序/管理器附加到我的连接以存储 cookie。Android 文档并不是很有帮助，因为它将有关 cookie 的主题包含在两行中。
我之前一直在使用 LoopJ PersistentCookieStore，效果很好。
关于如何在 Android 中设置持久性 cookie 存储的任何想法，我可以将其附加到我HTTPUrlConnection的自动保存和检索 cookie 上？
谢谢
Its' taken me a few hours but I managed to build a custom cookie storage myself.
You have to attach this by doing this:
public class application extends Application {
@Override
public void onCreate() {
super.onCreate();
CookieManager cmrCookieMan = new CookieManager(new MyCookieStore(this.objContext), CookiePolicy.ACCEPT_ALL);
CookieHandler.setDefault(cmrCookieMan);
}
}
Here's the actual storage:
/*
* This is a custom cookie storage for the application. This
* will store all the cookies to the shared preferences so that it persists
* across application restarts.
*/
class MyCookieStore implements CookieStore {
/*
* The memory storage of the cookies
*/
private Map<URI, List<HttpCookie>> mapCookies = new HashMap<URI, List<HttpCookie>>();
/*
* The instance of the shared preferences
*/
private final SharedPreferences spePreferences;
/*
* @see java.net.CookieStore#add(java.net.URI, java.net.HttpCookie)
*/
public void add(URI uri, HttpCookie cookie) {
System.out.println("add");
System.out.println(cookie.toString());
List<HttpCookie> cookies = mapCookies.get(uri);
if (cookies == null) {
cookies = new ArrayList<HttpCookie>();
mapCookies.put(uri, cookies);
}
cookies.add(cookie);
Editor ediWriter = spePreferences.edit();
HashSet<String> setCookies = new HashSet<String>();
setCookies.add(cookie.toString());
ediWriter.putStringSet(uri.toString(), spePreferences.getStringSet(uri.toString(), setCookies));
ediWriter.commit();
}
/*
* Constructor
*
* @param ctxContext the context of the Activity
*/
@SuppressWarnings("unchecked")
public MyCookieStore(Context ctxContext) {
spePreferences = ctxContext.getSharedPreferences("CookiePrefsFile", 0);
Map<String, ?> prefsMap = spePreferences.getAll();
for(Map.Entry<String, ?> entry : prefsMap.entrySet()) {
for (String strCookie : (HashSet<String>) entry.getValue()) {
if (!mapCookies.containsKey(entry.getKey())) {
List<HttpCookie> lstCookies = new ArrayList<HttpCookie>();
lstCookies.addAll(HttpCookie.parse(strCookie));
try {
mapCookies.put(new URI(entry.getKey()), lstCookies);
} catch (URISyntaxException e) {
e.printStackTrace();
}
} else {
List<HttpCookie> lstCookies = mapCookies.get(entry.getKey());
lstCookies.addAll(HttpCookie.parse(strCookie));
try {
mapCookies.put(new URI(entry.getKey()), lstCookies);
} catch (URISyntaxException e) {
e.printStackTrace();
}
}
System.out.println(entry.getKey() + ": " + strCookie);
}
}
}
/*
* @see java.net.CookieStore#get(java.net.URI)
*/
public List<HttpCookie> get(URI uri) {
List<HttpCookie> lstCookies = mapCookies.get(uri);
if (lstCookies == null)
mapCookies.put(uri, new ArrayList<HttpCookie>());
return mapCookies.get(uri);
}
/*
* @see java.net.CookieStore#removeAll()
*/
public boolean removeAll() {
mapCookies.clear();
return true;
}
/*
* @see java.net.CookieStore#getCookies()
*/
public List<HttpCookie> getCookies() {
Collection<List<HttpCookie>> values = mapCookies.values();
List<HttpCookie> result = new ArrayList<HttpCookie>();
for (List<HttpCookie> value : values) {
result.addAll(value);
}
return result;
}
/*
* @see java.net.CookieStore#getURIs()
*/
public List<URI> getURIs() {
Set<URI> keys = mapCookies.keySet();
return new ArrayList<URI>(keys);
}
/*
* @see java.net.CookieStore#remove(java.net.URI, java.net.HttpCookie)
*/
public boolean remove(URI uri, HttpCookie cookie) {
List<HttpCookie> lstCookies = mapCookies.get(uri);
if (lstCookies == null)
return false;
return lstCookies.remove(cookie);
}
}
CookieStore许多自定义实现中存在一些基本问题。
第一个问题是HttpCookie序列化为字符串 - 该HttpCookie.toString()方法不可接受，因为它的结果不适合该HttpCookie.parse(String header)方法。
第二个问题：大多数CookieStore实现（例如，here）没有考虑HttpCookie.maxAge字段的格式。这是 cookie live 的秒数。但是如果你只是坚持它的价值，一段时间后又不坚持它，那就错了。您必须将maxAgefield 转换为类似的"expire_at"内容并将其持久化，而不是maxAge.
我使用了上面的答案，但将我的 add 方法更改为以下方法以处理来自同一 URI 的多个 cookie（这个带有 GAE 的 cookie 存储将会话令牌和记忆令牌视为来自同一 URI 的两个单独的 cookie 出于某种原因） ：
public void add(URI uri, HttpCookie cookie) {
List<HttpCookie> cookies = mapCookies.get(uri);
if (cookies == null) {
cookies = new ArrayList<HttpCookie>();
mapCookies.put(uri, cookies);
}
cookies.add(cookie);
Editor ediWriter = spePreferences.edit();
HashSet<String> setCookies = new HashSet<String>();
setCookies.add(cookie.toString());
HashSet<String> emptyCookieSet = new HashSet<String>();
if(spePreferences.contains(uri.toString())){
emptyCookieSet = (HashSet<String>) spePreferences.getStringSet(uri.toString(), emptyCookieSet);
if(!emptyCookieSet.isEmpty()){
if(!emptyCookieSet.contains(cookie.toString())){
emptyCookieSet.add(cookie.toString());
ediWriter.putStringSet(uri.toString(), emptyCookieSet);
}
}
}
else{
ediWriter.putStringSet(uri.toString(), setCookies);
}
ediWriter.commit();
}
并访问和创建组合 cookie：
MyCookieStore store = new MyCookieStore(this.context, false);
String cookie = TextUtils.join(",", store.get(new URI(URLString)));
附加到连接：
URL urlToRequest = new URL(stringPath);
HttpURLConnection urlConnection = (HttpURLConnection) urlToRequest.openConnection();
urlConnection.setRequestProperty("Cookie", cookie);
在下面的链接中检查实现。它像原来的 java.net.InMemoryCookieStore 实现一样按主机名保存 cookie。
除此之外，它还包含一个 SerializableHttpCookie，以便能够将完整的 HashMap 序列化为 SharedPreferences。