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我正在使用twitter4j提取推文列表。這是我的代碼：如何存儲loacally tweets（狀態）列表？
private ResponseList<Status> favouritesSavedLocally;
ConfigurationBuilder builder = new ConfigurationBuilder();
builder.setOAuthConsumerKey(ConstantValues.TWITTER_CONSUMER_KEY);
builder.setOAuthConsumerSecret(ConstantValues.TWITTER_CONSUMER_SECRET);
builder.setOAuthAccessToken(SharedPref.getPrefKeyOauthToken());
builder.setOAuthAccessTokenSecret(SharedPref.getPrefKeyOauthSecret());
builder.setJSONStoreEnabled(true);
builder.setIncludeEntitiesEnabled(true);
builder.setIncludeMyRetweetEnabled(true);
AccessToken accessToken = new AccessToken(SharedPref.getPrefKeyOauthToken(), SharedPref.getPrefKeyOauthSecret());
Twitter twitter = new TwitterFactory(builder.build()).getInstance(accessToken);
try {
favouritesSavedLocally = twitter.getFavorites();
} catch (TwitterException e) {
e.printStackTrace();
}
現在這工作正常......但問題是我需要在本地存儲。有誰知道什麼是存儲狀態（tweet）對象的最佳方式？我試圖將它作爲一個blob存儲在SQLite中，但是當試圖從DB讀取時出現這個錯誤。這是我嘗試以本地存儲它：
private static final String COLUMN_ID = "ID";
private static final String COLUMN_FAVOURITE_TWEET = "FAVOURITE_TWEET";
...
@Override
public void onCreate(SQLiteDatabase sqLiteDatabase) {
sqLiteDatabase.execSQL("create table " + TABLE_NAME + " (ID INTEGER PRIMARY KEY AUTOINCREMENT,FAVOURITE_TWEET BLOB) ");
}
...
public boolean addFavouriteStatus(byte[] status) {
SQLiteDatabase sqLiteDatabase = this.getWritableDatabase();
ContentValues contentValues = new ContentValues();
contentValues.put(COLUMN_FAVOURITE_TWEET, status);
long result = sqLiteDatabase.insert(TABLE_NAME, null, contentValues);
if (result == -1) {
return false;
} else {
sqLiteDatabase.close();
return true;
}
}
public Cursor getFavouriteStatuses() {
SQLiteDatabase sqLiteDatabase = this.getWritableDatabase();
Cursor result = sqLiteDatabase.rawQuery("select * from " + TABLE_NAME, null);
return result;
}
我得到嘗試讀取getFavoritesStatuses（）
FATAL EXCEPTION: AsyncTask #2
Process: xxxxxxxx.clientfeed, PID: 11221
java.lang.RuntimeException: An error occurred while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:309)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:354)
at java.util.concurrent.FutureTask.setException(FutureTask.java:223)
at java.util.concurrent.FutureTask.run(FutureTask.java:242)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
Caused by: android.database.sqlite.SQLiteException: unknown error (code 0): INTEGER data in nativeGetBlob
#################################################################
Error Code : 0 (SQLITE_OK)
Caused By : unknown error (code 0): INTEGER data in nativeGetBlob
#################################################################
at android.database.CursorWindow.nativeGetBlob(Native Method)
at android.database.CursorWindow.getBlob(CursorWindow.java:416)
at android.database.AbstractWindowedCursor.getBlob(AbstractWindowedCursor.java:45)
at xxxxxxxx.ui.TwitterFeedListFragment$GetFavouritesLocalTweets.doInBackground(TwitterFeedListFragment.java:132)
at xxxxxxxx.ui.TwitterFeedListFragment$GetFavouritesLocalTweets.doInBackground(TwitterFeedListFragment.java:120)
at android.os.AsyncTask$2.call(AsyncTask.java:295)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
... 4 more
注意，當這個錯誤：此鳴叫對象的模樣
{"id_str":"873961105277767680","coordinates":null,"in_reply_to_user_id_str":null,"source":"<a href=\"http:\/\/instagram.com\" rel=\"nofollow\">Instagram<\/a>","geo":null,"possibly_sensitive_appealable":false,"in_reply_to_user_id":null,"retweet_count":0,"user":{"default_profile_image":false,"screen_name":"klaussdeejay","profile_link_color":"0084B4","profile_background_color":"C0DEED","is_translator":false,"url":null,"profile_background_image_url":"http:\/\/pbs.twimg.com\/profile_background_images\/868651398\/9e71de37e9836eb30c0e171028a134d2.jpeg","statuses_count":704,"profile_text_color":"333333","profile_image_url_https":"https:\/\/pbs.twimg.com\/profile_images\/3601781438\/76e5351fe2de382e89486e86f6a3bc18_normal.jpeg","following":true,"profile_sidebar_border_color":"C0DEED","verified":false,"id":1396650608,"lang":"en","entities":{"description":{"urls":[]}},"profile_background_tile":false,"listed_count":3,"id_str":"1396650608","profile_sidebar_fill_color":"DDEEF6","profile_background_image_url_https":"https:\/\/pbs.twimg.com\/profile_background_images\/868651398\/9e71de37e9836eb30c0e171028a134d2.jpeg","protected":false,"translator_type":"none","utc_offset":null,"is_translation_enabled":false,"profile_use_background_image":true,"notifications":false,"geo_enabled":false,"friends_count":366,"default_profile":false,"followers_count":54,"profile_image_url":"http:\/\/pbs.twimg.com\/profile_images\/3601781438\/76e5351fe2de382e89486e86f6a3bc18_normal.jpeg","follow_request_sent":false,"contributors_enabled":false,"has_extended_profile":false,"description":"","time_zone":null,"location":"London, UK","name":"Claudiu Farcas ","created_at":"Thu May 02 08:46:07 +0000 2013","favourites_count":47},"favorited":false,"in_reply_to_status_id":null,"in_reply_to_status_id_str":null,"truncated":false,"favorite_count":0,"id":873961105277767680,"is_quote_status":false,"contributors":null,"lang":"en","possibly_sensitive":false,"entities":{"urls":[{"indices":[20,43],"display_url":"instagram.com\/p\/BVNVW5VlNo-\/","expanded_url":"https:\/\/www.instagram.com\/p\/BVNVW5VlNo-\/","url":"https:\/\/t.co\/ngy7BtnvhP"}],"hashtags":[],"user_mentions":[],"symbols":[]},"text":"Just posted a photo https:\/\/t.co\/ngy7BtnvhP","created_at":"Sun Jun 11 17:52:19 +0000 2017","place":null,"in_reply_to_screen_name":null,"retweeted":false}
預先感謝您！