/** * 打开数据库 * * @param dbName 数据库名称 * @param clz 对应的实体类的class * @return */ public static DBManager open(String dbName, Class<?> clz) { DBManager dbm = new DBManager(); { SQLiteDatabase db = SQLiteDatabase.openOrCreateDatabase(new File(dbDir, dbName + ".db"), null); db.execSQL(SqlGetter.getCreateTable(clz)); dbm.db = db; } return dbm; }