请sql问题求助

时间：2014-10-10 12:45:37

标签： java android sql

您好fokes我正在构建一个Android应用程序，我需要创建一个SQL数据库来节省时间和分数。

我还希望获得已保存的次数，以便我可以使用它来为用户提供播放次数。

基本上我需要sql创建10秒和0分。然后在每次比赛之后，我希望它有更多的时间让我们说10.01秒（或多或少无关紧要）并保存得分。

现在，当我运行游戏时，它可以工作，但是当它必须对sql数据库做任何事情时它会崩溃。

这是我的sql数据库java代码：

  

package com.orion.peky.thetapgame;

     

import android.content.ContentValues; import android.content.Context;   import android.database.Cursor;进口   android.database.sqlite.SQLiteDatabase;进口   android.database.sqlite.SQLiteOpenHelper;

     

public class spremanje {       public static final String KEY_ROWID =＆＃34; _id＆＃34 ;;       public static final String KEY_SCORE =＆＃34;得分＆＃34 ;;       public static final String KEY_TIME =＆＃34; time＆＃34 ;; 

private static final String IME_TABLICE = "bodovi";
private static final String TABELA_BAZE = "nmvz";
private static final int DATABASE_VERSION = 1;

private DbHelper ourHelper;
private final Context ourContext;
private SQLiteDatabase ourDatabase;

private static class DbHelper extends SQLiteOpenHelper {

    public DbHelper(Context context) {
        super(context, IME_TABLICE, null, DATABASE_VERSION);

    }

    @Override
    public void onCreate(SQLiteDatabase db) {
        db.execSQL("CREATE TABLE " + TABELA_BAZE + " (" +
                        KEY_ROWID + " INTEGER PRIMARY KEY AUTOINCREMENT, " +
                        KEY_TIME + " INTEGER , " +
                        KEY_SCORE + "INTEGER )"
        );        ContentValues cv = new ContentValues();         int time=10000;
      cv.put(KEY_TIME, time);
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        db.execSQL("DROP TABLE IF EXISTS " + TABELA_BAZE);
        onCreate(db);

    }
}


public spremanje(Context c) {
    ourContext = c;
}

public spremanje open() {
    ourHelper = new DbHelper(ourContext);
    ourDatabase = ourHelper.getWritableDatabase();
    return this;
}

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

public long createEntry(int time, int score) {
    ContentValues cv = new ContentValues();
    cv.put(KEY_TIME, time);
    cv.put(KEY_SCORE, score);
    return ourDatabase.insert(IME_TABLICE, null, cv);
}

public int getRed() {
    String[] columns = new String[]{KEY_ROWID, KEY_TIME, KEY_SCORE};
    Cursor c = ourDatabase.query(IME_TABLICE, columns, null, null, null, null, null);
    int red = 0;

    int iRow = c.getColumnIndex(KEY_ROWID);

    for (c.moveToFirst(); !c.isAfterLast(); c.moveToNext()) {
        red = c.getInt(iRow);
    }

    return red;

}

public int getTime() {
    String[] columns = new String[]{KEY_ROWID, KEY_TIME, KEY_SCORE};
    Cursor c = ourDatabase.query(IME_TABLICE, columns, null, null, null, null, null);
    int time = 10000;

    int iTime = c.getColumnIndex(KEY_TIME);


    for (c.moveToFirst(); !c.isAfterLast(); c.moveToNext()) {
        time = c.getInt(iTime);

    }

    return time;

}


public int getScore() {
    String[] columns = new String[]{KEY_ROWID, KEY_TIME, KEY_SCORE};
    Cursor c = ourDatabase.query(IME_TABLICE, columns, null, null, null, null, null);
    int score = 0;

    int iScore = c.getColumnIndex(KEY_SCORE);


    for (c.moveToFirst(); !c.isAfterLast(); c.moveToNext()) {
        score = c.getInt(iScore);

    }

    return score;

} }

这是我的游戏活动：

package com.orion.peky.thetapgame;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.CountDownTimer;
import android.view.View;
import android.widget.TextView;
import com.google.android.gms.ads.*;


public class Game extends Activity {
    TextView tekst, vrijeme;
    int brojac=0, provjera=0;
    CountDownTimer Count;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_game);
        spremanje read = new spremanje(this);
        read.open();
        int brojacvremena=read.getTime();
        read.close();
        tekst=(TextView)findViewById(R.id.tekst);
        vrijeme=(TextView)findViewById(R.id.vrijeme);
        final Intent i =new Intent(Game.this,Score.class);
        vrijeme.setText("Time: "+brojacvremena/1000 + "." + brojacvremena%1000);
        /*AdView adView=(AdView)this.findViewById(R.id.adView123);
        AdRequest adRequest = new AdRequest.Builder().build();
        adView.loadAd(adRequest);*/
        Count = new CountDownTimer(brojacvremena, 1) {
            public void onTick(long millisUntilFinished) {
                int seconds = (int) ((millisUntilFinished / 1000));
                vrijeme.setText(seconds + "." + millisUntilFinished % 1000);
            }
            public void onFinish(){
                i.putExtra("prijenos",brojac);
                startActivity(i);
                finish();
            }};
    }

    public void broji(View view){
        if(provjera==0){
            Count.start();
            brojac++;
            provjera++;
            tekst.setText("Taps " + brojac);
        }else {
            brojac++;
            tekst.setText("Taps " + brojac);
        }
    }
}

以下是我的游戏活动后的屏幕：

package com.orion.peky.thetapgame;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.TextView;


public class Score extends Activity {
    int primljeno=1, vrijeme=10000;
    Bundle dodatak;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_score);
        TextView prikazati=(TextView)findViewById(R.id.prikazbodova);
        Intent inte=getIntent();
        dodatak=inte.getExtras();
        primljeno=dodatak.getInt("prijenos");
        prikazati.setText("You tapped "+primljeno+" times");
        spremanje unos = new spremanje(this);
        unos.open();
        vrijeme= unos.getTime();
        vrijeme=vrijeme+125;
        unos.createEntry(vrijeme,primljeno);
        unos.close();

    }



}

这是我的logcat：

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.orion.peky.thetapgame/com.orion.peky.thetapgame.Game}: android.database.sqlite.SQLiteException: no such table: bodovi: , while compiling: SELECT _id, time, score FROM bodovi
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1956)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
            at android.app.ActivityThread.access$600(ActivityThread.java:123)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:4424)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
            at dalvik.system.NativeStart.main(Native Method)
     Caused by: android.database.sqlite.SQLiteException: no such table: bodovi: , while compiling: SELECT _id, time, score FROM bodovi
            at android.database.sqlite.SQLiteCompiledSql.native_compile(Native Method)
            at android.database.sqlite.SQLiteCompiledSql.<init>(SQLiteCompiledSql.java:68)
            at android.database.sqlite.SQLiteProgram.compileSql(SQLiteProgram.java:143)
            at android.database.sqlite.SQLiteProgram.compileAndbindAllArgs(SQLiteProgram.java:361)
            at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:127)
            at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:94)
            at android.database.sqlite.SQLiteQuery.<init>(SQLiteQuery.java:53)
            at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:47)
            at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1564)
            at android.database.sqlite.SQLiteDatabase.queryWithFactory(SQLiteDatabase.java:1449)
            at android.database.sqlite.SQLiteDatabase.query(SQLiteDatabase.java:1405)
            at android.database.sqlite.SQLiteDatabase.query(SQLiteDatabase.java:1485)
            at com.orion.peky.thetapgame.spremanje.getTime(spremanje.java:87)
            at com.orion.peky.thetapgame.Game.onCreate(Game.java:22)
            at android.app.Activity.performCreate(Activity.java:4465)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
            at android.app.ActivityThread.access$600(ActivityThread.java:123)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:4424)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
            at dalvik.system.NativeStart.main(Native Method)

我已经研究过sql数据库还有一件事，但似乎我找不到问题，所以请不要将其标记为副本，可能会有1个以上的错误。感谢至少阅读。

1 个答案:

答案 0 :(得分：0)

解决了这个结果。

  

@覆盖       public void onCreate（SQLiteDatabase db）{           db.execSQL（＆＃34; CREATE TABLE＆＃34; + IME_TABLICE +＆＃34;（＆＃34; +
                          KEY_ROWID +＆＃34; INTEGER PRIMARY KEY AUTOINCREMENT，＆＃34; +                           KEY_TIME +＆＃34; INTEGER，＆＃34; +                           KEY_SCORE +＆＃34; INTEGER）＆＃34;

相关问题
最新问题