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这是调用文件：

@Override
public void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    dbActivities = new DBActivities(this);
    dbActivities.open();    // Create or open the existing DB if already created
}

private final BroadcastReceiver receiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            if(intent.getAction().equals("android.provider.Telephony.SMS_RECEIVED")) {
                smsCount++;
                Log.d(LOG_TAG, "smsCount=" +smsCount);
                long dbInsertReturn = dbActivities.insertIntoDB(smsCount);
            }
        }
};

这是执行实际数据库操作的文件：

public class DBActivities {
    private static final String LOG_TAG = "SMSCounterActivity";

    private static final String DATABASE_NAME = "sms_details_database";
    private static final String DATABASE_TABLE = "sms_details_table";
    private static final String KEY_DATE = "date";
    private static final String KEY_SMS_CURRENT_COUNT = "sms_current_count";
    private static final String CREATE_SMS_DETAILS_TABLE = "CREATE TABLE " + DATABASE_TABLE + "(" + KEY_DATE + " TEXT, " + KEY_SMS_CURRENT_COUNT + " INTEGER);";
    private static final int DATABASE_VERSION = 1;

    private final Context mContext;
    private DatabaseHelper mDbHelper;
    private SQLiteDatabase mDb;

    public DBActivities(Context param_context) {
        this.mContext = param_context;
    }

    // Database helper class for creating and updating database
     private static class DatabaseHelper extends SQLiteOpenHelper {
         DatabaseHelper(Context context) {
             super(context, DATABASE_NAME, null, DATABASE_VERSION);
         }

         @Override
         public void onCreate(SQLiteDatabase db) {
             Log.i(LOG_TAG, "Creating DataBase: " + CREATE_SMS_DETAILS_TABLE);
             db.execSQL(CREATE_SMS_DETAILS_TABLE);
         }

         @Override
         public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
             Log.w(LOG_TAG, "Upgrading database from version " + oldVersion + " to " + newVersion);
         }
     }

     // Create a new DB. If DB already exists, open it !
    public DBActivities open() throws SQLException {
        Log.d(LOG_TAG, "Trying to open DB now. Table query=" + CREATE_SMS_DETAILS_TABLE);
        mDbHelper = new DatabaseHelper(mContext);
        mDb = mDbHelper.getWritableDatabase();
        return this;
    }

    public void close() {
        mDbHelper.close();
    }

    // DB format: date | sms_current_count
    // date = YYYY-MM-DD
    public long insertIntoDB (int db_value_to_insert) {
        ContentValues dbValues = new ContentValues();
        dbValues.put(KEY_DATE, getCurrentDate());
        dbValues.put(KEY_SMS_CURRENT_COUNT, db_value_to_insert);
        return mDb.insert(DATABASE_TABLE, null, dbValues);
    }

    private String getCurrentDate() {
        Calendar calendar = Calendar.getInstance();
        String currentDate = calendar.get(Calendar.YEAR) + "-" + (calendar.get(Calendar.MONTH)+1) + "-" + calendar.get(Calendar.DAY_OF_MONTH);
        Log.d(LOG_TAG, "currentDate=" +currentDate);
        return currentDate;
    }
}

这是 logcat 日志：

05-09 01:52:33.363: D/SMSCounterActivity(444): Trying to open DB now. Table query=CREATE TABLE sms_details_table(date TEXT, sms_current_count INTEGER);
05-09 01:54:30.472: D/SMSCounterActivity(444): smsCount=1
05-09 01:54:30.482: D/SMSCounterActivity(444): currentDate=2012-5-9
05-09 01:54:30.592: I/Database(444): sqlite returned: error code = 1, msg = table sms_details_table has no column named sms_current_count
05-09 01:54:30.612: E/Database(444): Error inserting sms_current_count=1 date=2012-5-9
05-09 01:54:30.612: E/Database(444): android.database.sqlite.SQLiteException: table sms_details_table has no column named sms_current_count: , while compiling: INSERT INTO sms_details_table(sms_current_count, date) VALUES(?, ?);
05-09 01:54:30.612: E/Database(444):    at android.database.sqlite.SQLiteCompiledSql.native_compile(Native Method)
05-09 01:54:30.612: E/Database(444):    at android.database.sqlite.SQLiteCompiledSql.compile(SQLiteCompiledSql.java:91)
05-09 01:54:30.612: E/Database(444):    at android.database.sqlite.SQLiteCompiledSql.<init>(SQLiteCompiledSql.java:64)
05-09 01:54:30.612: E/Database(444):    at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:80)
05-09 01:54:30.612: E/Database(444):    at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:36)
05-09 01:54:30.612: E/Database(444):    at android.database.sqlite.SQLiteDatabase.compileStatement(SQLiteDatabase.java:1145)
05-09 01:54:30.612: E/Database(444):    at android.database.sqlite.SQLiteDatabase.insertWithOnConflict(SQLiteDatabase.java:1536)
05-09 01:54:30.612: E/Database(444):    at android.database.sqlite.SQLiteDatabase.insert(SQLiteDatabase.java:1410)
05-09 01:54:30.612: E/Database(444):    at com.android.main.DBActivities.insertIntoDB(DBActivities.java:66)
05-09 01:54:30.612: E/Database(444):    at com.android.main.SMSCounterActivity$1.onReceive(SMSCounterActivity.java:52)
05-09 01:54:30.612: E/Database(444):    at android.app.ActivityThread$PackageInfo$ReceiverDispatcher$Args.run(ActivityThread.java:892)
05-09 01:54:30.612: E/Database(444):    at android.os.Handler.handleCallback(Handler.java:587)
05-09 01:54:30.612: E/Database(444):    at android.os.Handler.dispatchMessage(Handler.java:92)
05-09 01:54:30.612: E/Database(444):    at android.os.Looper.loop(Looper.java:123)
05-09 01:54:30.612: E/Database(444):    at android.app.ActivityThread.main(ActivityThread.java:4627)
05-09 01:54:30.612: E/Database(444):    at java.lang.reflect.Method.invokeNative(Native Method)
05-09 01:54:30.612: E/Database(444):    at java.lang.reflect.Method.invoke(Method.java:521)
05-09 01:54:30.612: E/Database(444):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
05-09 01:54:30.612: E/Database(444):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
05-09 01:54:30.612: E/Database(444):    at dalvik.system.NativeStart.main(Native Method)

我无法弄清楚数据库插入失败的原因。logcat显示建表查询正常。表中仍然缺少 sms_current_count 列。

4

1 回答 1

1

通常，当您的创建脚本很好并且数据库中不存在一列时，这是因为您更改了架构而没有增加数据库版本。如果是这种情况，您的 CREATE 脚本的唯一问题是它尚未运行

于 2012-05-08T20:32:58.187 回答