더 많은 필드를 DBAdapter 클래스에 추가하십시오.

Question

버튼을 클릭하면 현재 날짜 값을 저장하려고합니다. sqlite에 매개 변수를 저장하기 위해 DBAdapter를 사용하고 DBAdapter의 예제와 같이 2 개의 필드를 사용할 때도 괜찮 았지만 DBAdapter를 편집했습니다. 6 개 분야에서 일하지 않습니다. 내 문제는 어디에 있습니까?

DBAdapter.java

import java.io.StringReader; 
import java.util.ArrayList; 
import javax.xml.parsers.SAXParser; 
import javax.xml.parsers.SAXParserFactory; 
import org.xml.sax.InputSource; 
import org.xml.sax.XMLReader; 
import android.content.ContentValues; 
import android.content.Context; 
import android.database.Cursor; 
import android.database.sqlite.SQLiteDatabase; 
import android.database.sqlite.SQLiteOpenHelper; 
import android.util.Log; 

public class DBAdapter { 

private static final String TAG = "DBAdapter"; //used for logging database version changes 

// Field Names: 
public static final String KEY_ROWID = "_id"; 
public static final String KEY_YEAR = "year"; 
public static final String KEY_MONTH = "month"; 
public static final String KEY_DAY = "day"; 
public static final String KEY_HOUR = "hour"; 
public static final String KEY_MINUTE = "minute"; 
public static final String KEY_SECOND = "second"; 


public static final String[] ALL_KEYS = new String[] { KEY_ROWID, KEY_YEAR, KEY_MONTH, KEY_DAY, KEY_HOUR, KEY_MINUTE, KEY_SECOND}; 

// Column Numbers for each Field Name: 
public static final int COL_ROWID = 0; 
public static final int COL_TASK = 1; 
public static final int COL_DATE = 2; 

// DataBase info: 
public static final String DATABASE_NAME = "dbToDo12"; 
public static final String DATABASE_TABLE = "mainToDo12"; 
public static final int DATABASE_VERSION = 2; // The version number must be incremented each time a change to DB structure occurs. 

//SQL statement to create database 
private static final String DATABASE_CREATE_SQL = 
     "CREATE TABLE " + DATABASE_TABLE 
       + " (" + KEY_ROWID + " INTEGER PRIMARY KEY AUTOINCREMENT, " 
       + KEY_YEAR + " TEXT NOT NULL, " 
       + KEY_MONTH + " TEXT" 
       + KEY_DAY + " TEXT" 
       + KEY_HOUR + " TEXT" 
       + KEY_MINUTE + " TEXT" 
       + KEY_SECOND + " TEXT" 
       + ");"; 

private final Context context; 
private DatabaseHelper myDBHelper; 
private SQLiteDatabase db; 


public DBAdapter(Context ctx) { 
    this.context = ctx; 
    myDBHelper = new DatabaseHelper(context); 
} 

// Open the database connection. 
public DBAdapter open() { 
    db = myDBHelper.getWritableDatabase(); 
    return this; 
} 

// Close the database connection. 
public void close() { 
    myDBHelper.close(); 
} 

// Add a new set of values to be inserted into the database. 
public long insertRow(String year, String month,String day, String hour,String minute,String second) { 
    ContentValues initialValues = new ContentValues(); 
    initialValues.put(KEY_YEAR, year); 
    initialValues.put(KEY_MONTH, month); 
    initialValues.put(KEY_DAY, day); 
    initialValues.put(KEY_HOUR, hour); 
    initialValues.put(KEY_MINUTE, minute); 
    initialValues.put(KEY_SECOND, second); 

    // Insert the data into the database. 
    return db.insert(DATABASE_TABLE, null, initialValues); 
} 

// Delete a row from the database, by rowId (primary key) 
public boolean deleteRow(long rowId) { 
    String where = KEY_ROWID + "=" + rowId; 
    return db.delete(DATABASE_TABLE, where, null) != 0; 
} 

public void deleteAll() { 
    Cursor c = getAllRows(); 
    long rowId = c.getColumnIndexOrThrow(KEY_ROWID); 
    if (c.moveToFirst()) { 
     do { 
      deleteRow(c.getLong((int) rowId)); 
     } while (c.moveToNext()); 
    } 
    c.close(); 
} 

// Return all data in the database. 
public Cursor getAllRows() { 
    String where = null; 
    Cursor c = db.query(true, DATABASE_TABLE, ALL_KEYS, where, null, null, null, null, null); 
    if (c != null) { 
     c.moveToFirst(); 
    } 
    return c; 
} 

// Get a specific row (by rowId) 
public Cursor getRow(long rowId) { 
    String where = KEY_ROWID + "=" + rowId; 
    Cursor c = db.query(true, DATABASE_TABLE, ALL_KEYS, 
      where, null, null, null, null, null); 
    if (c != null) { 
     c.moveToFirst(); 
    } 
    return c; 
} 

// Change an existing row to be equal to new data. 
public boolean updateRow(long rowId, String year, String month,long day, String hour, String minute,long second) { 
    String where = KEY_ROWID + "=" + rowId; 
    ContentValues newValues = new ContentValues(); 
    newValues.put(KEY_YEAR, year); 
    newValues.put(KEY_MONTH, month); 
    newValues.put(KEY_DAY, day); 
    newValues.put(KEY_HOUR, hour); 
    newValues.put(KEY_YEAR, year); 
    newValues.put(KEY_MINUTE, minute); 
    newValues.put(KEY_SECOND, second); 

    // Insert it into the database. 
    return db.update(DATABASE_TABLE, newValues, where, null) != 0; 
} 


private static class DatabaseHelper extends SQLiteOpenHelper 
{ 
    DatabaseHelper(Context context) { 
     super(context, DATABASE_NAME, null, DATABASE_VERSION); 
    } 

    @Override 
    public void onCreate(SQLiteDatabase _db) { 
     _db.execSQL(DATABASE_CREATE_SQL); 
    } 

    @Override 
    public void onUpgrade(SQLiteDatabase _db, int oldVersion, int newVersion) { 
     Log.w(TAG, "Upgrading application's database from version " + oldVersion 
       + " to " + newVersion + ", which will destroy all old data!"); 

     // Destroy old database: 
     _db.execSQL("DROP TABLE IF EXISTS " + DATABASE_TABLE); 

     // Recreate new database: 
     onCreate(_db); 
    } 
} 

}

MainActivity.java

import android.content.Context; 
import android.database.Cursor; 
import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 
import android.widget.Button; 
import android.widget.Toast; 
import android.view.ViewGroup; 
import android.widget.LinearLayout; 
import android.view.View; 
import java.util.Calendar; 

public class MainActivity extends AppCompatActivity { 
    Button plus; 


int second,minute,houre,day,mounth,year; 


DBAdapter mDb = new DBAdapter(this); 

protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    //setContentView(R.layout.activity_main); 

    ViewGroup.LayoutParams superparams = 
      new LinearLayout.LayoutParams(
        ViewGroup.LayoutParams.WRAP_CONTENT, 
        ViewGroup.LayoutParams.MATCH_PARENT); 
    LinearLayout table = new LinearLayout(this); 
    plus = new Button(this); 
    plus.setText("+"); 
    table.addView(plus); 
    setContentView(table); 

    plus.setOnClickListener(new View.OnClickListener() { 
     public void onClick(View v) { 
      Calendar c = Calendar.getInstance(); 
      second = c.get(Calendar.SECOND); 
      minute = c.get(Calendar.MINUTE); 
      houre = c.get(Calendar.HOUR); 
      day = c.get(Calendar.DAY_OF_MONTH); 
      mounth = c.get(Calendar.MONTH); 
      year = c.get(Calendar.YEAR); 
      mDb.open(); 
      mDb.insertRow(Integer.toString(year), Integer.toString (mounth),Integer.toString(day), Integer.toString(houre),Integer.toString(minute), Integer.toString(second)); 
      mDb.close(); 
      mDb.open(); 
      Cursor g=mDb.getRow(2); 
      DisplayContact(g); 
      mDb.close(); 
     } 
    }); 
} 
    public void DisplayContact(Cursor c) 
{ 
    Toast.makeText(this,"id: "+c.getString(0)+"\n"+ 
        "year: "+c.getString(1)+"\n"+ 
        "month: "+c.getString(2), 
      Toast.LENGTH_LONG).show(); 
} 

}

Answer 1

당신이 놓치고있는 쉼표 여기 열 사양 사이 , :

+ KEY_MONTH + " TEXT" 
+ KEY_DAY + " TEXT" 
+ KEY_HOUR + " TEXT" 
+ KEY_MINUTE + " TEXT" 

누락 된 쉼표를 추가 한 후 앱을 제거하거나 스키마 버전을 증가시켜 테이블을 다시 만듭니다.