我已经创建了一个数据库助手，就像在这个链接上指定的那样： Creating and Using Databases in Android。
我已通过USB连接在我的ACER安卓平板电脑上通过程序进行了测试。我打开了我的数据库 - 我想 - 并关闭它。
但是，我无法插入表格：我得到-1的返回值，异常代码为19.
AND：我在平板电脑上找不到数据库。 / data 目录为空。
我已经在本网站和网络上阅读了我在SQL Lite和数据库上可以找到的所有内容。没有任何作用，没有任何解释。
问题1：什么是例外19，我该如何解决？ 问题2：为什么我不能在平板电脑上找到我的数据库？
感谢。
根据要求：这是我的dbHelper代码。我不得不削减它，因为原件太大而无法提交：
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;
public class DBAdapter {
private static final String TAG = "DBAdapter";
private static final String DATABASE_NAME = "vardata";
private static final String DATABASE_TABLE_1 = "inspection";
private static final String DATABASE_TABLE_2 = "fedexvehicles";
private static final String DATABASE_TABLE_3 = "attachments";
private static final String DATABASE_TABLE_4 = "nonvehicles";
private static final String DATABASE_TABLE_5 = "property";
private static final String DATABASE_TABLE_6 = "people";
private static final String DATABASE_TABLE_7 = "photos";
private static final String DATABASE_TABLE_8 = "notes";
private static final int DATABASE_VERSION = 1;
public static final String KEY_ROW_ID = "_id";
public static final String KEY_INSPECTION_ID = "_id";
public static final String KEY_INSPECTION_ACCDATE = "accdate";
public static final String KEY_INSPECTION_ACCTIME = "acctime";
public static final String KEY_INSPECTION_NOTIFIED = "notified";
public static final String KEY_INSPECTION_ARRIVED = "arrived";
public static final String KEY_INSPECTION_ACCTYPE = "acctype";
public static final String KEY_INSPECTION_GATE = "gate";
public static final String KEY_INSPECTION_ROADSURFACE = "roadsurface";
public static final String KEY_INSPECTION_ROADTYPE = "roadtype";
public static final String KEY_INSPECTION_WEATHER = "weather";
public static final String KEY_INSPECTION_TRAFFIC = "traffic";
public static final String KEY_INSPECTION_LIGHTING = "lighting";
public static final String KEY_INSPECTION_HAZMAT = "hazmat";
public static final String KEY_INSPECTION_MANAGER = "manager";
public static final String KEY_INSPECTION_SPEEDLIMIT = "speedlimit";
public static final String KEY_INSPECTION_POLICE = "police";
public static final String KEY_INSPECTION_POLICEDEPARTMENT = "policedepartment";
public static final String KEY_INSPECTION_POLICEOFFICER = "policeofficer";
public static final String KEY_INSPECTION_POLICEBADGE = "policebadge";
public static final String KEY_INSPECTION_POLICEREPORT = "policereport";
public static final String KEY_INSPECTION_FEDEXVEHICLES = "fedexvehicles";
public static final String KEY_INSPECTION_ATTACHED = "attached";
public static final String KEY_INSPECTION_NONVEHICLES = "nonvehicles";
public static final String KEY_INSPECTION_PROPERTY = "property";
public static final String KEY_INSPECTION_INJURED = "injured";
public static final String KEY_INSPECTION_WITNESSES = "witnesses";
public static final String KEY_INSPECTION_PHOTOS = "photos";
public static final String KEY_INSPECTION_COMPLETED = "completed";
//I created constants for all the table fields, but removed them here due to size
private static final String DATABASE_CREATE_TABLE_1 =
"create table inspection (_id integer primary key autoincrement, "
+ "accdate text not null, acctime text not null, "
+ "notified text not null, arrived text not null, "
+ "acctype text not null, location text not null, "
+ "gate text not null, roadcondition text not null, "
+ "roadsurface text not null, roadtype text not null, "
+ "weather text not null, traffic text not null, "
+ "lighting text not null, hazmat text not null, "
+ "manager text not null, speedlimit text not null, "
+ "police text not null, policedepartment text not null, "
+ "policeofficer text not null, policebadge text not null, "
+ "policereport text not null, fedexvehicles text not null, "
+ "attached text not null, nonvehicles text not null, "
+ "property text not null, injured text not null, "
+ "witnesses text not null, photos text not null, "
+ "completed text not null);";
private static final String DATABASE_CREATE_TABLE_2 =
"create table fedexvehicles (_id integer primary key autoincrement, "
+ "investigationkey text not null, vehiclenumber text not null, "
+ "vehicletype text not null, assetnumber text not null, "
+ "vehicleaction text not null, speed text not null, "
+ "interaction text not null, objectstruck text not null, "
+ "damagetype text not null, damagelocationgeneral text not null, "
+ "damagelocationspecific text not null, guideperson text not null, "
+ "passengersfed text not null, passengersnon text not null, "
+ "wheeledgse text not null, carriedgse text not null, "
+ "damagedattachments text not null, driver text not null, "
+ "driverslicense text not null, driverslicensestate text not null, "
+ "driverslicensedate text not null, seatbelt text not null, "
+ "citation text not null, preventable text not null, "
+ "vio1 text not null, vio2 text not null, "
+ "vio3 text not null, vio4 text not null, "
+ "vio5 text not null, vio6 text not null, "
+ "vio7 text not null, vio8 text not null, "
+ "vio9 text not null, vio10 text not null, "
+ "vio11 text not null, vio12 text not null, "
+ "vio13 text not null, vio14 text not null, "
+ "vio15 text not null, vio16 text not null, "
+ "vio17 text not null, vio18 text not null, "
+ "vio19 text not null, vio20 text not null, "
+ "vio21 text not null, vio22 text not null, "
+ "completed text not null);";
private static final String DATABASE_CREATE_TABLE_3 =
"create table attachments (_id integer primary key autoincrement, "
+ "investigationkey text not null, vehiclekey text not null, "
+ "attachmenttype text not null, assetnumber text not null, "
+ "interaction text not null, objectstruck text not null, "
+ "damagetype text not null, damagelocationgeneral text not null, "
+ "damagelocationspecific text not null, dollyonstring text not null, "
+ "positiononstring text not null, positionondolly text not null, "
+ "attachmentnumber text not null, completed text not null);";
private static final String DATABASE_CREATE_TABLE_4 =
"create table nonvehicles (_id integer primary key autoincrement, "
+ "investigationkey text not null, vehiclenumber text not null, "
+ "vin text not null, text vehmake not null, "
+ "vehmodel text not null, vehyear text not null, "
+ "plate text not null, platestate text not null, "
+ "vehicleaction text not null, speed text not null, "
+ "damagetype text not null, damagelocation text not null, "
+ "damagepart text not null, towed text not null, "
+ "owner text not null, insurance text not null, "
+ "insurancephone text not null, policy text not null, "
+ "policydate text not null, driver text not null, "
+ "driverslicense text not null, driverslicensestate text not null, "
+ "driverslicensedate text not null, citation text not null, "
+ "passengersfed text not null, passengersnon text not null, "
+ "completed text not null);";
private static final String DATABASE_CREATE_TABLE_5 =
"create table property (_id integer primary key autoincrement, "
+ "investigationkey text not null, owner text not null, "
+ "propertytype text not null, propertydamage text not null, "
+ "propertynumber text not null, completed text not null);";
private static final String DATABASE_CREATE_TABLE_6 =
"create table people (_id integer primary key autoincrement, "
+ "investigationkey text not null, persontype text not null, "
+ "employeeid text not null, personname text not null, "
+ "personaddress text not null, personcity text not null, "
+ "personstate text not null, personzip text not null, "
+ "personphone text not null, injured text not null);";
private static final String DATABASE_CREATE_TABLE_7 =
"create table photos (_id integer primary key autoincrement, "
+ "investigationkey text not null, photofilename text not null, "
+ "photolocation text not null, photodirection text not null, "
+ "photocaption text not null);";
private static final String DATABASE_CREATE_TABLE_8 =
"create table notes (_id integer primary key autoincrement, "
+ "investigationkey text not null, notetext text not null);";
private final Context context;
private DatabaseHelper DBHelper;
private SQLiteDatabase db;
public DBAdapter(Context ctx)
{
this.context = ctx;
DBHelper = new DatabaseHelper(context);
}
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_TABLE_1);
db.execSQL(DATABASE_CREATE_TABLE_2);
db.execSQL(DATABASE_CREATE_TABLE_3);
db.execSQL(DATABASE_CREATE_TABLE_4);
db.execSQL(DATABASE_CREATE_TABLE_5);
db.execSQL(DATABASE_CREATE_TABLE_6);
db.execSQL(DATABASE_CREATE_TABLE_7);
db.execSQL(DATABASE_CREATE_TABLE_8);
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion,
int newVersion)
{
Log.w(TAG, "Upgrading database from version " + oldVersion
+ " to "
+ newVersion + ", which will destroy all old data");
db.execSQL("DROP TABLE IF EXISTS investigation");
db.execSQL("DROP TABLE IF EXISTS fedexvehicles");
db.execSQL("DROP TABLE IF EXISTS attachments");
db.execSQL("DROP TABLE IF EXISTS nonvehicles");
db.execSQL("DROP TABLE IF EXISTS property");
db.execSQL("DROP TABLE IF EXISTS people");
db.execSQL("DROP TABLE IF EXISTS photos");
db.execSQL("DROP TABLE IF EXISTS notes");
onCreate(db);
}
}
//---opens the database---
public DBAdapter open() throws SQLException
{
db = DBHelper.getWritableDatabase();
return this;
}
//---closes the database---
public void close()
{
DBHelper.close();
}
//---insert an inspection into the database---
public long insertinspection(String acDat, String acNot)
{
ContentValues initialValues = new ContentValues();
try{
initialValues.put(KEY_INSPECTION_ACCDATE, acDat);
initialValues.put(KEY_INSPECTION_ACCTIME, EMPTYSTRING);
initialValues.put(KEY_INSPECTION_NOTIFIED, "acNot");
initialValues.put(KEY_INSPECTION_ARRIVED, EMPTYSTRING);
initialValues.put(KEY_INSPECTION_ACCTYPE, EMPTYSTRING);
initialValues.put(KEY_INSPECTION_GATE, EMPTYSTRING);
initialValues.put(KEY_INSPECTION_ROADSURFACE, EMPTYSTRING);
initialValues.put(KEY_INSPECTION_ROADTYPE, EMPTYSTRING);
initialValues.put(KEY_INSPECTION_WEATHER, EMPTYSTRING);
initialValues.put(KEY_INSPECTION_TRAFFIC, EMPTYSTRING);
initialValues.put(KEY_INSPECTION_LIGHTING, EMPTYSTRING);
initialValues.put(KEY_INSPECTION_HAZMAT, EMPTYSTRING);
initialValues.put(KEY_INSPECTION_MANAGER, EMPTYSTRING);
initialValues.put(KEY_INSPECTION_SPEEDLIMIT, EMPTYSTRING);
initialValues.put(KEY_INSPECTION_POLICE, EMPTYSTRING);
initialValues.put(KEY_INSPECTION_POLICEDEPARTMENT, EMPTYSTRING);
initialValues.put(KEY_INSPECTION_POLICEOFFICER, EMPTYSTRING);
initialValues.put(KEY_INSPECTION_POLICEBADGE, EMPTYSTRING);
initialValues.put(KEY_INSPECTION_POLICEREPORT, EMPTYSTRING);
initialValues.put(KEY_INSPECTION_FEDEXVEHICLES, ONE_STRING);
initialValues.put(KEY_INSPECTION_ATTACHED, EMPTYSTRING);
initialValues.put(KEY_INSPECTION_NONVEHICLES, EMPTYSTRING);
initialValues.put(KEY_INSPECTION_PROPERTY, EMPTYSTRING);
initialValues.put(KEY_INSPECTION_INJURED, EMPTYSTRING);
initialValues.put(KEY_INSPECTION_WITNESSES, EMPTYSTRING);
initialValues.put(KEY_INSPECTION_PHOTOS, EMPTYSTRING);
initialValues.put(KEY_INSPECTION_COMPLETED, FALSE_STRING);
} catch (Exception e)
{
Log.e("ERROR", "DATABASE ERROR: " + e.toString());
e.printStackTrace();
}
return db.insert(DATABASE_TABLE_1, null, initialValues);
}
//---insert a FedEx Vehicle into the database---
public long insertFedVeh(String inspectionKey, String vehiclenumber)
{
ContentValues initialValues = new ContentValues();
initialValues.put(KEY_FEDVEHICLE_INVESTIGATIONKEY, inspectionKey);
initialValues.put(KEY_FEDVEHICLE_VEHICLENUMBER, vehiclenumber);
initialValues.put(KEY_FEDVEHICLE_VEHICLETYPE, "");
initialValues.put(KEY_FEDVEHICLE_ASSETNUMBER, "");
initialValues.put(KEY_FEDVEHICLE_VEHICLEACTION, "");
initialValues.put(KEY_FEDVEHICLE_SPEED, "");
initialValues.put(KEY_FEDVEHICLE_INTERACTION, "");
initialValues.put(KEY_FEDVEHICLE_OBJECTSTRUCK, "");
initialValues.put(KEY_FEDVEHICLE_DAMAGETYPE, "");
initialValues.put(KEY_FEDVEHICLE_DAMAGELOCATIONGENERAL, "");
initialValues.put(KEY_FEDVEHICLE_DAMAGELOCATIONSPECIFIC, "");
initialValues.put(KEY_FEDVEHICLE_GUIDEPERSON, "");
initialValues.put(KEY_FEDVEHICLE_PASSENGERSFED, "0");
initialValues.put(KEY_FEDVEHICLE_PASSENGERSNON, "0");
initialValues.put(KEY_FEDVEHICLE_WHEELEDGSE, "0");
initialValues.put(KEY_FEDVEHICLE_CARRIEDGSE, "0");
initialValues.put(KEY_FEDVEHICLE_DAMAGEDATTACHMENTS, "0");
initialValues.put(KEY_FEDVEHICLE_DRIVER, "");
initialValues.put(KEY_FEDVEHICLE_DRIVERSLICENSE, "");
initialValues.put(KEY_FEDVEHICLE_DRIVERSLICENSESTATE, "");
initialValues.put(KEY_FEDVEHICLE_DRIVERSLICENSEDATE, "");
initialValues.put(KEY_FEDVEHICLE_SEATBELT, "");
initialValues.put(KEY_FEDVEHICLE_CITATION, "");
initialValues.put(KEY_FEDVEHICLE_PREVENTABLE, "");
initialValues.put(KEY_FEDVEHICLE_VIO1, "false");
initialValues.put(KEY_FEDVEHICLE_VIO2, "false");
initialValues.put(KEY_FEDVEHICLE_VIO3, "false");
initialValues.put(KEY_FEDVEHICLE_VIO4, "false");
initialValues.put(KEY_FEDVEHICLE_VIO5, "false");
initialValues.put(KEY_FEDVEHICLE_VIO6, "false");
initialValues.put(KEY_FEDVEHICLE_VIO7, "false");
initialValues.put(KEY_FEDVEHICLE_VIO8, "false");
initialValues.put(KEY_FEDVEHICLE_VIO9, "false");
initialValues.put(KEY_FEDVEHICLE_VIO10, "false");
initialValues.put(KEY_FEDVEHICLE_VIO11, "false");
initialValues.put(KEY_FEDVEHICLE_VIO12, "false");
initialValues.put(KEY_FEDVEHICLE_VIO13, "false");
initialValues.put(KEY_FEDVEHICLE_VIO14, "false");
initialValues.put(KEY_FEDVEHICLE_VIO15, "false");
initialValues.put(KEY_FEDVEHICLE_VIO16, "false");
initialValues.put(KEY_FEDVEHICLE_VIO17, "false");
initialValues.put(KEY_FEDVEHICLE_VIO18, "false");
initialValues.put(KEY_FEDVEHICLE_VIO19, "false");
initialValues.put(KEY_FEDVEHICLE_VIO20, "false");
initialValues.put(KEY_FEDVEHICLE_VIO21, "false");
initialValues.put(KEY_FEDVEHICLE_VIO22, "false");
initialValues.put(KEY_FEDVEHICLE_COMPLETED, "false");
return db.insert(DATABASE_TABLE_2, null, initialValues);
}
//---I also created methods to insert each table, but removed them here for size ---
//---deletes a particular inspection---
public boolean deleteInspection(long rowId)
{
return db.delete(DATABASE_TABLE_1, KEY_INSPECTION_ID +
"=" + rowId, null) > 0;
}
//---deletes a particular FedEx Vehicle---
public boolean deleteFedVehicle(long rowId)
{
return db.delete(DATABASE_TABLE_2, KEY_FEDVEHICLE_ID +
"=" + rowId, null) > 0;
}
//---deletes a particular Attachment---
public boolean deleteAttach(long rowId)
{
return db.delete(DATABASE_TABLE_3, KEY_ATTACHMENTS_ID +
"=" + rowId, null) > 0;
}
//---deletes a particular Non FedEx Vehicle---
public boolean deleteNonVehicle(long rowId)
{
return db.delete(DATABASE_TABLE_4, KEY_NONVEHICLES_ID +
"=" + rowId, null) > 0;
}
//---deletes a particular Property---
public boolean deleteProperty(long rowId)
{
return db.delete(DATABASE_TABLE_5, KEY_PROPERTY_ID +
"=" + rowId, null) > 0;
}
//---deletes a particular Person---
public boolean deletePeople(long rowId)
{
return db.delete(DATABASE_TABLE_6, KEY_PEOPLE_ID +
"=" + rowId, null) > 0;
}
//---deletes a particular Photo---
public boolean deletePhoto(long rowId)
{
return db.delete(DATABASE_TABLE_7, KEY_PHOTOS_ID +
"=" + rowId, null) > 0;
}
//---deletes a particular Note---
public boolean deleteNote(long rowId)
{
return db.delete(DATABASE_TABLE_8, KEY_NOTES_ID +
"=" + rowId, null) > 0;
}
//---retrieves all the Inspections---
public Cursor getAllInspections()
{
return db.query(DATABASE_TABLE_1, new String[] {
KEY_INSPECTION_ID,
KEY_INSPECTION_ACCDATE,
KEY_INSPECTION_NOTIFIED},
null,
null,
null,
null,
null);
}
//---retrieves all Persons---
public Cursor getAllPeople(String investigationKey)
{
return db.query(DATABASE_TABLE_6, new String[] {
KEY_PEOPLE_PERSONNAME,
KEY_PEOPLE_EMPLOYEEID},
null,
null,
null,
null,
null);
}
//---retrieves all Employees---
public Cursor getAllEmployees(String investigationKey)
{
return db.query(DATABASE_TABLE_6, new String[] {
KEY_PEOPLE_PERSONNAME,
KEY_PEOPLE_EMPLOYEEID},
KEY_PEOPLE_EMPLOYEEID + "<> 0",
null,
null,
null,
null);
}
//---retrieves all Non Persons---
public Cursor getAllPersons(String investigationKey)
{
return db.query(DATABASE_TABLE_6, new String[] {
KEY_PEOPLE_PERSONNAME},
KEY_PEOPLE_EMPLOYEEID + "= 0",
null,
null,
null,
null);
}
//---retrieves a particular inspection---
public Cursor getInspection(long investigationKey) throws SQLException
{
Cursor mCursor =
db.query(true, DATABASE_TABLE_1, null,
KEY_INSPECTION_ID + "=" + investigationKey,
null,
null,
null,
null,
null);
if (mCursor != null) {
mCursor.moveToFirst();
}
return mCursor;
}
//---retrieves a particular fedexvehicle---
public Cursor getFedVehicle(String investigationKey, String vehicleNumber) throws SQLException
{
Cursor mCursor =
db.query(true, DATABASE_TABLE_2, null,
KEY_FEDVEHICLE_INVESTIGATIONKEY + "=" + investigationKey+" AND "+KEY_FEDVEHICLE_VEHICLENUMBER+"="+vehicleNumber,
null,
null,
null,
null,
null);
if (mCursor != null) {
mCursor.moveToFirst();
}
return mCursor;
}
//---retrieves a particular attachment---
public Cursor getAttachment(String investigationKey, String vehicleNumber, String attachmentNumber) throws SQLException
{
Cursor mCursor =
db.query(true, DATABASE_TABLE_3, null,
KEY_ATTACHMENTS_INVESTIGATIONKEY + "=" + investigationKey+" AND "+KEY_ATTACHMENTS_VEHICLEKEY+"="+vehicleNumber+" AND "+KEY_ATTACHMENTS_ATTACHMENTNUMBER+"="+attachmentNumber,
null,
null,
null,
null,
null);
if (mCursor != null) {
mCursor.moveToFirst();
}
return mCursor;
}
//---retrieves a particular NonFedExVehicle---
public Cursor getNonVehicle(String investigationKey, String vehicleNumber) throws SQLException
{
Cursor mCursor =
db.query(true, DATABASE_TABLE_4, null,
KEY_NONVEHICLES_INVESTIGATIONKEY + "=" + investigationKey+" AND "+KEY_NONVEHICLES_VEHICLENUMBER+"="+vehicleNumber,
null,
null,
null,
null,
null);
if (mCursor != null) {
mCursor.moveToFirst();
}
return mCursor;
}
//---retrieves a particular property---
public Cursor getProperty(String investigationKey, String propertyNumber) throws SQLException
{
Cursor mCursor =
db.query(true, DATABASE_TABLE_5, null,
KEY_PROPERTY_INVESTIGATIONKEY + "=" + investigationKey+" AND "+KEY_PROPERTY_PROPERTYNUMBER+"="+propertyNumber+" AND "+KEY_ATTACHMENTS_ATTACHMENTNUMBER+"="+propertyNumber,
null,
null,
null,
null,
null);
if (mCursor != null) {
mCursor.moveToFirst();
}
return mCursor;
}
//---retrieves a particular Person---
public Cursor getPerson(String investigationKey, String personName, String employeeID) throws SQLException
{
Cursor mCursor =
db.query(true, DATABASE_TABLE_6, null,
KEY_PEOPLE_INVESTIGATIONKEY + "=" + investigationKey + " AND " + KEY_PEOPLE_EMPLOYEEID + " = " + employeeID + " AND " + KEY_PEOPLE_PERSONNAME + " = " + personName,
null,
null,
null,
null,
null);
if (mCursor != null) {
mCursor.moveToFirst();
}
return mCursor;
}
//---updates a Field---
public boolean updateField(long rowId, String tablename, String fieldname, String newdata)
{
ContentValues args = new ContentValues();
args.put(fieldname, newdata);
return db.update(tablename, args,
KEY_ROW_ID + "=" + rowId, null) > 0;
}
}
答案 0 :(得分：0)