将数据保存到SQliteDataBase时出错

我有一个将联系人保存到SQlite数据库的应用程序。将数据保存到SQliteDataBase时出错

我有一个Database.java类。这是这样的：

package digicare.phonebook; 

    import android.R; 
    import android.app.Activity; 
    import android.content.ContentValues; 
    import android.content.Context; 
    import android.database.SQLException; 
    import android.database.sqlite.SQLiteDatabase; 
    import android.database.sqlite.SQLiteDatabase.CursorFactory; 
    import android.database.sqlite.SQLiteOpenHelper; 
    import android.os.Bundle; 
    import android.util.Log; 
    import android.view.View.OnCreateContextMenuListener; 

    public class Database { 


private static final String DATABSE_NAME ="MY_DB"; 
private static final String DATABSE_TABLE ="MY_TABLE"; 
private static final int DATABASE_VERSION=1; 


public static final String KEY_ID = "ID" ; 
public static final String PHONE_NUM ="NUMBER"; 
public static final String PERSON_NAME="NAME"; 

public static final String DATABASE_CREATE =" CREATE TABLE "+ DATABSE_TABLE+ "(" + 
              KEY_ID + "INTEGER PRIMARY KEY AUTOINCREMENTs" + 
              PHONE_NUM + "TEXT NOT NULL"+ 
              PERSON_NAME+"TEXT NOT NULL)" ; 


private DatabaseHelper myHelper; 

private final Context mycontext; 
private SQLiteDatabase myDB; 


private static class DatabaseHelper extends SQLiteOpenHelper{ 

    public DatabaseHelper(Context context) { 
     super(context, DATABSE_NAME, null, DATABASE_VERSION); 
     // TODO Auto-generated constructor stub 
    } 

    @Override 
    public void onCreate(SQLiteDatabase db) { 
     // TODO Auto-generated method stub 

     db.execSQL(DATABASE_CREATE); 

    } 
    @Override 
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { 
     // TODO Auto-generated method stub 
     db.execSQL("DROP TABLE IF EXISTS "+ DATABSE_TABLE); 
     onCreate(db); 
    } 

} 

public Database(Context c){ 
    mycontext=c; 
} 
public Database open() throws SQLException { 

    myHelper=new DatabaseHelper(mycontext); 
    myDB= myHelper.getWritableDatabase(); 
    return this ; 
    } 
public void close(){ 
    myHelper.close(); 
} 
public long createEntry(String number, String name) { 
    // TODO Auto-generated method stub 
    ContentValues cv = new ContentValues() ; 
    cv.put(PERSON_NAME, name); 
    cv.put(PHONE_NUM,number); 
    return myDB.insert(DATABSE_TABLE, null, cv); 
} 
    }

从其他类（扩展了活动）我叫createEntry（）梅索德：

Boolean diditwork=true; 
        try{ 
        Database entry = new Database(Main_Activity.this); 
        entry.open(); 
        entry.createEntry(number , name); 

        entry.close(); 
        }catch(Exception e){ 
         diditwork=false; 
        }finally{ 
         if (diditwork){ 
          Dialog d = new Dialog(getApplicationContext()); 
          d.setTitle("Ring Manager"); 
          TextView tv = new TextView(getApplicationContext()) ; 
          tv.setText("Saved"); 
          d.setContentView(tv); 
          d.show(); 

         } 
        }

但我有一个问题logcat的显示错误..这“不这样的表：MY_TABLE“

如何解决这个问题？我必须调用onCreate（db）方法吗？

或该怎么办？

来源

2013-07-12 user2569548