本文介绍了使用 HTTPUrlConnection 时如何保留 cookie?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我已经开始使用推荐的 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 的主题分为两行.

I've begun using the recommended HTTPUrlConnection and moved away from the DefaultHTTPClient. One of the things that I haven't been able to glue back together is the use of a persistent cookie store. I'd like to simply attach a custom cookie handler/manager to my connection to store the cookies. The Android documentation hasn't been very helpful as it wraps up the subject about cookies in two lines.

我之前一直在使用 LoopJ 的 PersistentCookieStore 并且效果很好.

I've been using LoopJ's PersistentCookieStore earlier and that worked beautifully.

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的 HTTPUrlConnection 以自动保存和检索 cookie?

Any idea on how I could set up a persistent cookie store in Android that I can attach to my HTTPUrlConnection that saves and retrieves cookies automatically?

谢谢

推荐答案

我花了几个小时,但我设法自己构建了一个自定义 cookie 存储.

Its' taken me a few hours but I managed to build a custom cookie storage myself.

你必须这样做:

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);
       }
    }

这是实际存储:

/*
 * 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);

    }

}

这篇关于使用 HTTPUrlConnection 时如何保留 cookie?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

07-29 13:55