IllegalArgumentException：未知的URL内容：// CONTENT

IllegalArgumentException：未知的URL内容：//

^有上面的噩梦。 我检查了我的变量和路径，但看不出是什么问题？ 非常感谢任何指针！

这是我的踪迹。

java.lang.IllegalArgumentException: Unknown URL content://com.purewowstudio.topmovies.data.FilmProvider/film_data at android.content.ContentResolver.insert(ContentResolver.java:1203) at com.purewowstudio.topmovies.data.DatabaseHelper.addFilm(DatabaseHelper.java:52) at com.purewowstudio.topmovies.fragments.FilmList$getFilms.onPostExecute(FilmList.java:72) at com.purewowstudio.topmovies.fragments.FilmList$getFilms.onPostExecute(FilmList.java:62) at android.os.AsyncTask.finish(AsyncTask.java:632) at android.os.AsyncTask.access$600(AsyncTask.java:177) at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:645) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5262) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:898) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:693) 

内容提供商

 public class FilmProvider extends ContentProvider { public static final String TABLE_NAME = "film_data"; public static final String AUTHORITY = "com.purewowstudio.topmovies.data.FilmProvider"; public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/" + TABLE_NAME); public static final int FILMS = 1; public static final int FILMS_ID = 2; public static final UriMatcher sURIMatcher = new UriMatcher(UriMatcher.NO_MATCH); static { sURIMatcher.addURI(AUTHORITY, TABLE_NAME, FILMS); sURIMatcher.addURI(AUTHORITY, TABLE_NAME + "/#", FILMS_ID); } private DatabaseHelper mDB; public boolean onCreate() { mDB = new DatabaseHelper(getContext(), null, null, 1); return false; } @Override public String getType(Uri uri) { return null; } @Override public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) { SQLiteQueryBuilder queryBuilder = new SQLiteQueryBuilder(); queryBuilder.setTables(MovieDataContract.TABLE_NAME); int uriType = sURIMatcher.match(uri); switch (uriType) { case FILMS_ID: queryBuilder.appendWhere(MovieDataContract.FilmEntry._ID + "=" + uri.getLastPathSegment()); break; case FILMS: break; default: throw new IllegalArgumentException("Unknown URI"); } Cursor cursor = queryBuilder.query(mDB.getReadableDatabase(), projection, selection, selectionArgs, null, null, sortOrder); cursor.setNotificationUri(getContext().getContentResolver(), uri); return cursor; } @Override public Uri insert(Uri uri, ContentValues values) { int uriType = sURIMatcher.match(uri); SQLiteDatabase sqlDB = mDB.getWritableDatabase(); long id = 0; switch (uriType) { case FILMS: id = sqlDB.insert(MovieDataContract.TABLE_NAME, null, values); break; default: throw new IllegalArgumentException("Unknown URI: " + uri); } getContext().getContentResolver().notifyChange(uri, null); return Uri.parse(MovieDataContract.TABLE_NAME + "/" + id); } 

DatabaseHelper类

  public class DatabaseHelper extends SQLiteOpenHelper { private ContentResolver myCR; public DatabaseHelper(Context context, String name, SQLiteDatabase.CursorFactory factory, int version) { super(context, MovieDataContract.DATABASE_NAME, factory, MovieDataContract.DATABASE_VERSION); myCR = context.getContentResolver(); } @Override public void onCreate(SQLiteDatabase db) { db.execSQL(MovieDataContract.FilmEntry.SQL_CREATE_TABLE); } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { db.execSQL(MovieDataContract.FilmEntry.DELETE_TABLE); onCreate(db); } public void addFilm(Film film){ SQLiteDatabase db = this.getWritableDatabase(); ContentValues values = new ContentValues(); values.put(MovieDataContract.FilmEntry.COLUMN_FILM_TITLE, film.getTitle()); values.put(MovieDataContract.FilmEntry.COLUMN_FILM_RATING, film.getRating()); values.put(MovieDataContract.FilmEntry.COLUMN_FILM_RUNTIME, film.getRuntime()); values.put(MovieDataContract.FilmEntry.COLUMN_FILM_CRITICS, film.getCritics()); values.put(MovieDataContract.FilmEntry.COLUMN_FILM_AUDIENCE, film.getAudience()); values.put(MovieDataContract.FilmEntry.COLUMN_FILM_SYNOPSIS, film.getSynopsis()); values.put(MovieDataContract.FilmEntry.COLUMN_FILM_PROFILE, film.getProfile()); myCR.insert(FilmProvider.CONTENT_URI, values); db.insert(MovieDataContract.TABLE_NAME, null, values); db.close(); } 

表现

Answer 1

首先，将移动为的子项，而不是 。

其次，将android:exported="true"更改为android:exported="false" ，直到您保护ContentProvider为止。 如上所述，一旦您修复了元素位置，如上所述，任何应用都可以在您的提供商中读写任何内容，这不太可能是用户想要的。

Answer 2

我在权限中添加了包名。这就是我遇到这个问题的原因。我必须在authorities添加Provider name 。