0
나열된 오류가 발생하여 코드를 살펴본 후 잘못된 정보가 누락되었거나 잘못 표시되지 않고 코드가 잘못되었습니다. 단지 얼간이지만, 여기에 내 데이터베이스 처리기 클래스입니다 .. 나는 데이터베이스 버전 번호를 업데이 트하려고했는데, 응용 프로그램을 제거하지만, 둘 다 작동하도록 보였다. 감사합니다Android SQLite - 테이블 "..."에 "..."이라는 열이 없습니다.
import java.util.ArrayList;
import java.util.List;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
public class DatabaseHandler extends SQLiteOpenHelper {
// All Static variables
// Database Version
private static final int DATABASE_VERSION = 2;
// Database Name
private static final String DATABASE_NAME = "loginManager";
// Contacts table name
private static final String TABLE_CONTACTS = "loginTable";
// Contacts Table Columns names
private static final String KEY_ID = "id";
private static final String KEY_NAME = "name";
private static final String KEY_PASSWORD = "password";
private static final String KEY_QUESTION = "question";
private static final String KEY_ANSWER = "answer";
public DatabaseHandler(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
// Creating Tables
@Override
public void onCreate(SQLiteDatabase db) {
String CREATE_CONTACTS_TABLE = "CREATE TABLE " + TABLE_CONTACTS + "("
+ KEY_ID + " INTEGER PRIMARY KEY,"
+ KEY_NAME + " TEXT,"
+ KEY_PASSWORD + " TEXT"
+ KEY_QUESTION + " TEXT"
+ KEY_ANSWER + " TEXT" + ")";
db.execSQL(CREATE_CONTACTS_TABLE);
}
// Upgrading database
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
// Drop older table if existed
db.execSQL("DROP TABLE IF EXISTS " + TABLE_CONTACTS);
// Create tables again
onCreate(db);
}
/**
* All CRUD(Create, Read, Update, Delete) Operations
*/
// Adding new contact
void addContact(Contact contact) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(KEY_NAME, contact.getName()); // Contact Name
values.put(KEY_PASSWORD, contact.getPassword());
values.put(KEY_QUESTION, contact.getQuestion());
values.put(KEY_ANSWER, contact.getAnswer());
// Inserting Row
db.insert(TABLE_CONTACTS, null, values);
db.close(); // Closing database connection
}
// Getting single contact
Contact getContact(int id) {
SQLiteDatabase db = this.getReadableDatabase();
Cursor cursor = db.query(TABLE_CONTACTS, new String[] { KEY_ID,
KEY_NAME, KEY_PASSWORD, KEY_QUESTION, KEY_ANSWER }, KEY_ID + "=?",
new String[] { String.valueOf(id) }, null, null, null, null);
if (cursor != null)
cursor.moveToFirst();
Contact contact = new Contact(Integer.parseInt(cursor.getString(0)),
cursor.getString(1), cursor.getString(2), cursor.getString(3), cursor.getString(4));
// return contact
return contact;
}
// Getting All Contacts
public List<Contact> getAllContacts() {
List<Contact> contactList = new ArrayList<Contact>();
// Select All Query
String selectQuery = "SELECT * FROM " + TABLE_CONTACTS;
SQLiteDatabase db = this.getWritableDatabase();
Cursor cursor = db.rawQuery(selectQuery, null);
// looping through all rows and adding to list
if (cursor.moveToFirst()) {
do {
Contact contact = new Contact();
contact.setID(Integer.parseInt(cursor.getString(0)));
contact.setName(cursor.getString(1));
contact.setPassword(cursor.getString(2));
contact.setQuestion(cursor.getString(3));
contact.setAnswer(cursor.getString(4));
// Adding contact to list
contactList.add(contact);
} while (cursor.moveToNext());
}
// return contact list
return contactList;
}
// Updating single contact
public int updateContact(Contact contact) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(KEY_NAME, contact.getName());
values.put(KEY_PASSWORD, contact.getPassword());
values.put(KEY_QUESTION, contact.getQuestion());
values.put(KEY_ANSWER, contact.getAnswer());
// updating row
return db.update(TABLE_CONTACTS, values, KEY_ID + " = ?",
new String[] { String.valueOf(contact.getID()) });
}
// Deleting single contact
public void deleteContact(Contact contact) {
SQLiteDatabase db = this.getWritableDatabase();
db.delete(TABLE_CONTACTS, KEY_ID + " = ?",
new String[] { String.valueOf(contact.getID()) });
db.close();
}
// Getting contacts Count
public int getContactsCount() {
String countQuery = "SELECT * FROM " + TABLE_CONTACTS;
SQLiteDatabase db = this.getReadableDatabase();
Cursor cursor = db.rawQuery(countQuery, null);
cursor.close();
// return count
return cursor.getCount();
}
}
& 접촉 클래스
public class Contact {
//private variables
int _id;
String _name;
String _password;
String _question;
String _answer;
// Empty constructor
public Contact(){
}
// constructor
public Contact(int id, String name, String password, String question, String answer){
this._id = id;
this._name = name;
this._password = password;
this._question = question;
this._answer = answer;
}
// constructor
public Contact(String name, String password, String question, String answer){
this._name = name;
this._password = password;
this._question = question;
this._answer = answer;
}
// getting ID
public int getID(){
return this._id;
}
// setting id
public void setID(int id){
this._id = id;
}
// getting name
public String getName(){
return this._name;
}
// setting name
public void setName(String name){
this._name = name;
}
public String getPassword(){
return this._password;
}
public void setPassword(String password){
this._password = password;
}
public String getQuestion(){
return this._question;
}
public void setQuestion(String question){
this._question = question;
}
public String getAnswer(){
return this._answer;
}
public void setAnswer(String answer){
this._answer = answer;
}
}
로그 캣
11-07 12:30:55.151: E/SQLiteLog(32200): (1) table loginTable has no column named answer
11-07 12:30:55.161: E/SQLiteDatabase(32200): Error inserting answer=answer question=question password=pass name=name
11-07 12:30:55.161: E/SQLiteDatabase(32200): android.database.sqlite.SQLiteException: table loginTable has no column named answer (code 1): , while compiling: INSERT INTO loginTable(answer,question,password,name) VALUES (?,?,?,?)
11-07 12:30:55.161: E/SQLiteDatabase(32200): at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
11-07 12:30:55.161: E/SQLiteDatabase(32200): at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:1118)
11-07 12:30:55.161: E/SQLiteDatabase(32200): at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:691)
11-07 12:30:55.161: E/SQLiteDatabase(32200): at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588)
11-07 12:30:55.161: E/SQLiteDatabase(32200): at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58)
11-07 12:30:55.161: E/SQLiteDatabase(32200): at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:31)
11-07 12:30:55.161: E/SQLiteDatabase(32200): at android.database.sqlite.SQLiteDatabase.insertWithOnConflict(SQLiteDatabase.java:1589)
11-07 12:30:55.161: E/SQLiteDatabase(32200): at android.database.sqlite.SQLiteDatabase.insert(SQLiteDatabase.java:1461)
11-07 12:30:55.161: E/SQLiteDatabase(32200): at com.example.duradoornfc.DatabaseHandler.addContact(DatabaseHandler.java:72)
11-07 12:30:55.161: E/SQLiteDatabase(32200): at com.example.duradoornfc.CreateUserActivity.addUser(CreateUserActivity.java:135)
11-07 12:30:55.161: E/SQLiteDatabase(32200): at com.example.duradoornfc.CreateUserActivity.action_Click(CreateUserActivity.java:91)
11-07 12:30:55.161: E/SQLiteDatabase(32200): at java.lang.reflect.Method.invokeNative(Native Method)
11-07 12:30:55.161: E/SQLiteDatabase(32200): at java.lang.reflect.Method.invoke(Method.java:525)
11-07 12:30:55.161: E/SQLiteDatabase(32200): at android.view.View$1.onClick(View.java:3833)
11-07 12:30:55.161: E/SQLiteDatabase(32200): at android.view.View.performClick(View.java:4475)
11-07 12:30:55.161: E/SQLiteDatabase(32200): at android.view.View$PerformClick.run(View.java:18786)
11-07 12:30:55.161: E/SQLiteDatabase(32200): at android.os.Handler.handleCallback(Handler.java:730)
11-07 12:30:55.161: E/SQLiteDatabase(32200): at android.os.Handler.dispatchMessage(Handler.java:92)
11-07 12:30:55.161: E/SQLiteDatabase(32200): at android.os.Looper.loop(Looper.java:137)
11-07 12:30:55.161: E/SQLiteDatabase(32200): at android.app.ActivityThread.main(ActivityThread.java:5419)
11-07 12:30:55.161: E/SQLiteDatabase(32200): at java.lang.reflect.Method.invokeNative(Native Method)
11-07 12:30:55.161: E/SQLiteDatabase(32200): at java.lang.reflect.Method.invoke(Method.java:525)
11-07 12:30:55.161: E/SQLiteDatabase(32200): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1187)
11-07 12:30:55.161: E/SQLiteDatabase(32200): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003)
11-07 12:30:55.161: E/SQLiteDatabase(32200): at dalvik.system.NativeStart.main(Native Method)
귀하의 logcat하시기 바랍니다 –
Logcat가 추가되었습니다. – Galax