我在sqlite DB中保存图像时遇到问题。运行应用程序时，我收到以下消息：
错误
08-16 20:12:01.570 6563-6563/com.group6.travlhoe E/SQLiteLog: (1) table auto has no column named RECHNUNG_IMG
08-16 20:12:01.580 6563-6563/com.group6.travlhoe E/SQLiteDatabase: Error inserting PROJEKT=Mein Projekt ENTFERNUNG=30 RECHNUNG_IMG=[B@d1d4dce PRICE=30 MWST=30
android.database.sqlite.SQLiteException: table auto has no column named RECHNUNG_IMG (code 1): , while compiling: INSERT INTO auto(PROJEKT,ENTFERNUNG,RECHNUNG_IMG,PRICE,MWST) VALUES (?,?,?,?,?)
at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:889)
at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:500)
at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588)
at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58)
at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:31)
at android.database.sqlite.SQLiteDatabase.insertWithOnConflict(SQLiteDatabase.java:1472)
at android.database.sqlite.SQLiteDatabase.insert(SQLiteDatabase.java:1343)
at com.group6.TakeOff.DatabaseHelper.createAuto(DatabaseHelper.java:165)
at com.group6.TakeOff.activity_auto$3.onClick(activity_auto.java:192)
at android.view.View.performClick(View.java:6219)
at android.view.View$PerformClick.run(View.java:24482)
at android.os.Handler.handleCallback(Handler.java:769)
at android.os.Handler.dispatchMessage(Handler.java:98)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6540)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)
这是我的DatabaseHelper类：
package com.group6.TakeOff;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import java.util.ArrayList;
import java.util.List;
/**
* Created by STzavelas on 28.06.17.
*/
public class DatabaseHelper extends SQLiteOpenHelper {
public static final String DATABASE_NAME = "TakeOff.db";
//Table Names
public static final String TABLE_PROJEKT = "create_project";
public static final String TABLE_UNTERKUNFT = "unterkunft";
public static final String TABLE_AUTO = "auto";
public static final String TABLE_FLUGZEUG = "flugzeug";
public static final String TABLE_TAXI = "taxi";
public static final String TABLE_BAHN = "bahn";
//Common column names
public static final String KEY_PROJECT = "PROJEKT";
//create project column names
public static final String KEY_DATE_FROM= "DATE_FROM";
public static final String KEY_DATE_TO= "DATE_TO";
public static final String KEY_NAME = "NACHNAME";
public static final String KEY_VORNAME = "VORNAME";
public static final String KEY_KOSTENST = "KOSTENSTELLE";
//Expenses column names
public static final String KEY_ENTFERNUNG= "ENTFERNUNG";
public static final String KEY_PRICE= "PRICE";
public static final String KEY_MWST= "MWST";
public static final String KEY_RECHNUNG_IMG= "RECHNUNG_IMG";
//CREATE TABLE STATEMENTS
private static final String CREATE_TABLE_PROJEKT = "create table " + TABLE_PROJEKT +
"(PROJEKT TEXT PRIMARY KEY, " +
"DATE_FROM DATE, " +
"DATE_TO DATE, " +
"NACHNAME VARCHAR2, " +
"VORNAME VARCHAR2, " +
"KOSTENSTELLE VARCHAR2)";
private static final String CREATE_TABLE_UNTERKUNFT = "create table " + TABLE_UNTERKUNFT +
"(PROJEKT VARCHAR2, " +
"ENTFERNUNG DOUBLE, " +
"PRICE DOUBLE, " +
"MWST DOUBLE,"+
"RECHNUNG_IMG BLOB)";
private static final String CREATE_TABLE_AUTO = "create table " + TABLE_AUTO +
"(PROJEKT VARCHAR2, " +
"ENTFERNUNG DOUBLE, " +
"PRICE DOUBLE, " +
"MWST DOUBLE, "+
"RECHNUNG_IMG BLOB)"; //Image
private static final String CREATE_TABLE_FLUGZEUG = "create table " + TABLE_FLUGZEUG +
"(PROJEKT VARCHAR2, " +
"ENTFERNUNG DOUBLE, " +
"PRICE DOUBLE, " +
"MWST DOUBLE,"+
"RECHNUNG_IMG BLOB)";
private static final String CREATE_TABLE_TAXI= "create table " + TABLE_TAXI +
"(PROJEKT VARCHAR2, " +
"ENTFERNUNG DOUBLE, " +
"PRICE DOUBLE, " +
"MWST DOUBLE,"+
"RECHNUNG_IMG BLOB)";
private static final String CREATE_TABLE_BAHN = "create table " + TABLE_BAHN +
"(PROJEKT VARCHAR2, " +
"ENTFERNUNG DOUBLE, " +
"PRICE DOUBLE, " +
"MWST DOUBLE,"+
"RECHNUNG_IMG BLOB)";
public DatabaseHelper(Context context) {
super(context, DATABASE_NAME, null, 1);
}
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL(CREATE_TABLE_PROJEKT);
db.execSQL(CREATE_TABLE_UNTERKUNFT);
db.execSQL(CREATE_TABLE_AUTO);
db.execSQL(CREATE_TABLE_FLUGZEUG);
db.execSQL(CREATE_TABLE_TAXI);
db.execSQL(CREATE_TABLE_BAHN);
}
@Override
public void onUpgrade(SQLiteDatabase db, int i, int i1) {
db.execSQL("DROP TABLE IF EXISTS " + TABLE_PROJEKT);
db.execSQL("DROP TABLE IF EXISTS " + TABLE_UNTERKUNFT);
db.execSQL("DROP TABLE IF EXISTS " + TABLE_AUTO);
db.execSQL("DROP TABLE IF EXISTS " + TABLE_FLUGZEUG);
db.execSQL("DROP TABLE IF EXISTS " + TABLE_TAXI);
db.execSQL("DROP TABLE IF EXISTS " + TABLE_BAHN);
onCreate(db);
}
//+++++++++++++CREATE A PROJECT++++++++++++//
public boolean createProject(String project, String date_from, String date_to, String name, String vorname, String kostenstelle){
SQLiteDatabase db = this.getWritableDatabase();
ContentValues contentValues = new ContentValues();
contentValues.put(KEY_PROJECT, project);
contentValues.put(KEY_DATE_FROM, date_from);
contentValues.put(KEY_DATE_TO, date_to);
contentValues.put(KEY_NAME, name);
contentValues.put(KEY_VORNAME, vorname);
contentValues.put(KEY_KOSTENST, kostenstelle);
long result = db.insert(TABLE_PROJEKT,null,contentValues);
if(result == -1)
return false;
else
return true;
}
//+++++++++++++CREATE A UNTERKUNFT++++++++++++//
public boolean createUnterkunft(String project, int price, int steuer, int entfernung, byte [] image){
SQLiteDatabase db = this.getWritableDatabase();
ContentValues contentValues = new ContentValues();
contentValues.put(KEY_PROJECT, project);
contentValues.put(KEY_PRICE, price);
contentValues.put(KEY_MWST, steuer);
contentValues.put(KEY_ENTFERNUNG, entfernung);
contentValues.put(KEY_RECHNUNG_IMG, image);
long result = db.insert(TABLE_UNTERKUNFT,null,contentValues);
if(result == -1)
return false;
else
return true;
}
//+++++++++++++CREATE A AUTO++++++++++++//
public boolean createAuto(String project, int price, int steuer, int entfernung, byte [] image){ //Image
SQLiteDatabase db = this.getWritableDatabase();
ContentValues contentValues = new ContentValues();
contentValues.put(KEY_PROJECT, project);
contentValues.put(KEY_PRICE, price);
contentValues.put(KEY_MWST, steuer);
contentValues.put(KEY_ENTFERNUNG, entfernung);
contentValues.put(KEY_RECHNUNG_IMG, image); //Image
long result = db.insert(TABLE_AUTO,null,contentValues);
if(result == -1)
return false;
else
return true;
}
//+++++++++++++CREATE A FLUGZEUG++++++++++++//
public boolean createFlugzeug(String project, int price, int steuer, int entfernung, byte [] image){
SQLiteDatabase db = this.getWritableDatabase();
ContentValues contentValues = new ContentValues();
contentValues.put(KEY_PROJECT, project);
contentValues.put(KEY_PRICE, price);
contentValues.put(KEY_MWST, steuer);
contentValues.put(KEY_ENTFERNUNG, entfernung);
contentValues.put(KEY_RECHNUNG_IMG, image);
long result = db.insert(TABLE_FLUGZEUG,null,contentValues);
if(result == -1)
return false;
else
return true;
}
//+++++++++++++CREATE A TAXI++++++++++++//
public boolean createTaxi(String project, int price, int steuer, int entfernung, byte [] image){
SQLiteDatabase db = this.getWritableDatabase();
ContentValues contentValues = new ContentValues();
contentValues.put(KEY_PROJECT, project);
contentValues.put(KEY_PRICE, price);
contentValues.put(KEY_MWST, steuer);
contentValues.put(KEY_ENTFERNUNG, entfernung);
contentValues.put(KEY_RECHNUNG_IMG, image);
long result = db.insert(TABLE_TAXI,null,contentValues);
if(result == -1)
return false;
else
return true;
}
//+++++++++++++CREATE A BAHN++++++++++++//
public boolean createBahn(String project, int price, int steuer, int entfernung, byte [] image){
SQLiteDatabase db = this.getWritableDatabase();
ContentValues contentValues = new ContentValues();
contentValues.put(KEY_PROJECT, project);
contentValues.put(KEY_PRICE, price);
contentValues.put(KEY_MWST, steuer);
contentValues.put(KEY_ENTFERNUNG, entfernung);
contentValues.put(KEY_RECHNUNG_IMG, image);
long result = db.insert(TABLE_BAHN,null,contentValues);
if(result == -1)
return false;
else
return true;
}
//Getting values from spinner (Drop-Down)
public List<String> getAllProjects(){
List<String> projects = new ArrayList<String>();
String selectQuery = "SELECT " + KEY_PROJECT + " FROM " + TABLE_PROJEKT;
SQLiteDatabase db = this.getReadableDatabase();
Cursor cursor = db.rawQuery(selectQuery,null);
if (cursor.moveToFirst()) {
do {
projects.add(cursor.getString(0));
} while (cursor.moveToNext());
}
// closing connection
cursor.close();
db.close();
// returning lables
return projects;
}
//Getting data for Recycler View//
public Cursor getListContents() {
SQLiteDatabase db = this.getWritableDatabase();
Cursor data = db.rawQuery("SELECT " + TABLE_PROJEKT + "." + KEY_PROJECT + " , " +
"sum( "+ "IFNULL(" + TABLE_AUTO + "." + KEY_PRICE + ",0) +" +
"IFNULL(" + TABLE_FLUGZEUG + "." + KEY_PRICE + ",0) +" +
"IFNULL(" + TABLE_BAHN + "." + KEY_PRICE + ",0) +" +
"IFNULL(" + TABLE_TAXI + "." + KEY_PRICE + ",0)" +
//TABLE_UNTERKUNFT + "." + KEY_PRICE +
")" +
" , " + KEY_DATE_FROM + " , " + KEY_DATE_TO + " FROM " + TABLE_PROJEKT +
" left outer join " + TABLE_AUTO + " on " + "(" + TABLE_PROJEKT + "." + KEY_PROJECT + "=" + TABLE_AUTO + "." + KEY_PROJECT + " ) " +
" left outer join " + TABLE_FLUGZEUG + " on " + "(" + TABLE_PROJEKT + "." + KEY_PROJECT + "=" +TABLE_FLUGZEUG + "." + KEY_PROJECT + " ) " +
//" left outer join " + TABLE_UNTERKUNFT + " on " + "(" + TABLE_PROJEKT + "." + KEY_PROJECT + "=" + TABLE_UNTERKUNFT + "." + KEY_PROJECT + " ) " +
" left outer join " + TABLE_TAXI + " on " + "(" + TABLE_PROJEKT + "." + KEY_PROJECT + "=" + TABLE_TAXI + "." + KEY_PROJECT + " ) " +
" left outer join " + TABLE_BAHN + " on " + "(" + TABLE_PROJEKT + "." + KEY_PROJECT + "=" + TABLE_BAHN + "." + KEY_PROJECT + " ) " +
"group by " + TABLE_PROJEKT + "." + KEY_PROJECT + "," + TABLE_PROJEKT + "." + KEY_DATE_FROM + "," + TABLE_PROJEKT + "." + KEY_DATE_TO, null);
return data;
}
}
我也在我的create语句中查找了缺少的空格或逗号，但我找不到任何空格或逗号。这有什么问题吗？ 我也不确定我的数据类型 BLOB 是否正确... 我希望有人可以帮助我。