我的应用程序中有一个本地数据库，用于存储输入字段中的用户配置文件。我使用SQLiteOpenHelper类创建了数据库，但在运行我的应用程序后，出现此错误。我已经通过DatabaseHelper类但无法找到它的错误。我希望有人指出我的错误。感谢。
我的db类文件在这里：
public class DBHelper {
private static final String DATABASE_NAME = "UsersDemo.db";
private static final int DATABASE_VERSION = 1;
private static final String TABLE_NAME = "profileInfo";
private static final String COL_ID = "databaseId";
public static final String COL_USER_ID = "userId";
public static final String COL_FULL_NAME = "fullName";
public static final String COL_GENDER = "gender";
public static final String COL_DOB = "DOB";
public static final String COL_MOBILE_NUM = "mobileNum";
public static final String COL_OCCUPATION = "occupation";
public static final String COL_ORGANIZATION = "organization";
//private static final String COL_PROFILE_PHOTO = "profilePhoto";
private Context mCtx;
private DatabaseManager databaseManager;
private SQLiteDatabase db;
public DBHelper(Context context){
this.mCtx = context;
databaseManager = new DatabaseManager(mCtx);
}
public DBHelper open() throws SQLException{
db = databaseManager.getWritableDatabase();
return this;
}
public void close(){
databaseManager.close();
}
public boolean saveInputField(TingTingUser user){
SQLiteDatabase userDb = databaseManager.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(COL_FULL_NAME, user.getDisplayName());
values.put(COL_USER_ID, user.getUserId());
values.put(COL_GENDER, user.getGender());
values.put(COL_DOB, user.getDob());
values.put(COL_MOBILE_NUM, user.getMobileNumber());
values.put(COL_ORGANIZATION, user.getOrganization());
values.put(COL_OCCUPATION, user.getOccupation());
long result = userDb.insert(TABLE_NAME, null, values);
userDb.close();
if (result == -1){
return false;
} else {
return true;
}
}
public TingTingUser getCurrentUser(int id){
SQLiteDatabase currDB = databaseManager.getWritableDatabase();
Cursor cursor = currDB.query(true, TABLE_NAME, new String[]{COL_ID, COL_USER_ID, COL_FULL_NAME, COL_GENDER, COL_DOB, COL_MOBILE_NUM, COL_OCCUPATION, COL_ORGANIZATION}, COL_ID + "=?", new String[]{String.valueOf(id)}, null, null, null, null);
if (cursor != null && cursor.moveToFirst()){
TingTingUser user = new TingTingUser(Integer.parseInt(cursor.getString(0)), cursor.getString(1), cursor.getString(2), cursor.getString(3), cursor.getString(4), cursor.getString(5), cursor.getString(6), cursor.getString(7));
return user;
}
return null;
}
public void saveCameraImage(byte[] imageBytes){
SQLiteDatabase camDb = databaseManager.getWritableDatabase();
ContentValues contentValues = new ContentValues();
//contentValues.put(COL_PROFILE_PHOTO, imageBytes);
camDb.insert(TABLE_NAME, null, contentValues);
}
public void saveGalleryImage(byte[] imageBytes){
ContentValues contentValues = new ContentValues();
//contentValues.put(COL_PROFILE_PHOTO, imageBytes);
db.insert(TABLE_NAME, null, contentValues);
}
public class DatabaseManager extends SQLiteOpenHelper {
public DatabaseManager(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
@Override
public void onCreate(SQLiteDatabase sqLiteDatabase) {
String db_create = "Create Table " + TABLE_NAME + " ("
+ COL_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, "
+ COL_USER_ID + " TEXT, "
+ COL_FULL_NAME + " TEXT, "
+ COL_GENDER + " TEXT, "
+ COL_DOB + " TEXT, "
+ COL_MOBILE_NUM + " TEXT, "
+ COL_OCCUPATION + " TEXT, "
+ COL_ORGANIZATION + " TEXT, ";
//+ COL_PROFILE_PHOTO + " BLOB NOT NULL );";
sqLiteDatabase.execSQL(db_create);
}
@Override
public void onUpgrade(SQLiteDatabase sqLiteDatabase, int i, int i1) {
sqLiteDatabase.execSQL("DROP TABLE IF EXISTS" + TABLE_NAME);
onCreate(sqLiteDatabase);
}
}
}
当我调用DBHelper的saveInputField（）方法时，我的MainActivity出现错误，如下所示：
JsonObjectRequest otpObjectRequest = new JsonObjectRequest(Request.Method.POST, Constants.TING_VERIFY_OTP_ENDPOINT, verifyOTPObject, new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
Log.d("OTPDialogFragment", "OTP Verification Response is: \t" + response.toString());
Log.d("OTPDialogFragment", "OTP Verified Successfully");
try {
JSONObject verifyObject = new JSONObject(response.toString());
JSONObject userObject = verifyObject.getJSONObject("user");
userId = userObject.getString("_id");
Log.d(TAG, "Retrieved user id is:\t" + userId);
TingTingUser user = new TingTingUser();
user.setDisplayName(fullName);
user.setMobileNumber(num);
user.setGender(genderVal);
user.setDob(dob);
user.setOccupation("default");
user.setOrganization("default");
user.setUserId(userId);
if (!TextUtils.isEmpty(fullName) && !TextUtils.isEmpty(genderVal) && !TextUtils.isEmpty(dob) && !TextUtils.isEmpty(userId)){
if (dbHelper.saveInputField(user) == true){ // error occurs here
Toast.makeText(getContext(), "Saved User", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(getContext(), "Save Failed", Toast.LENGTH_SHORT).show(); // Toast shows cos save failed, dont know why
}
}
对不起，伙计们，我的主要活动太长了，只展示了必要的东西。
logcat中的错误消息：
android.database.sqlite.SQLiteException: near ",": syntax error (code 1): , while compiling: Create Table profileInfo (databaseId INTEGER PRIMARY KEY AUTOINCREMENT, userId TEXT, fullName TEXT, gender TEXT, DOB TEXT, mobileNum TEXT, occupation TEXT, organization TEXT,
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.executeSql(SQLiteDatabase.java:1674)
at android.database.sqlite.SQLiteDatabase.execSQL(SQLiteDatabase.java:1605)
at com.billionusers.tingting.db.DBHelper$DatabaseManager.onCreate(DBHelper.java:131)
at android.database.sqlite.SQLiteOpenHelper.getDatabaseLocked(SQLiteOpenHelper.java:251)
at android.database.sqlite.SQLiteOpenHelper.getWritableDatabase(SQLiteOpenHelper.java:163)
at com.billionusers.tingting.db.DBHelper.saveInputField(DBHelper.java:53)
at com.billionusers.tingting.activities.SignUpActivity$OTPDialogFragment$6.onResponse(SignUpActivity.java:466)
at com.billionusers.tingting.activities.SignUpActivity$OTPDialogFragment$6.onResponse(SignUpActivity.java:443)
at com.android.volley.toolbox.JsonRequest.deliverResponse(JsonRequest.java:65)
at com.android.volley.ExecutorDelivery$ResponseDeliveryRunnable.run(ExecutorDelivery.java:99)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
答案 0 :(得分：0)
来自logcat
near ",": syntax error (code 1): , while compiling: Create Table profileInfo (databaseId INTEGER PRIMARY KEY AUTOINCREMENT, userId TEXT, fullName TEXT, gender TEXT, DOB TEXT, mobileNum TEXT, occupation TEXT, organization TEXT,
和DBHelper.onCreate
String db_create = "Create Table " + TABLE_NAME + " ("
+ COL_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, "
+ COL_USER_ID + " TEXT, "
+ COL_FULL_NAME + " TEXT, "
+ COL_GENDER + " TEXT, "
+ COL_DOB + " TEXT, "
+ COL_MOBILE_NUM + " TEXT, "
+ COL_OCCUPATION + " TEXT, "
+ COL_ORGANIZATION + " TEXT, ";
//+ COL_PROFILE_PHOTO + " BLOB NOT NULL );";
sqLiteDatabase.execSQL(db_create);
您的create语句无效，因为您已在最后一行添加注释，因此它在+ COL_ORGANIZATION + " TEXT, ";中终止，这是不正确的。结局应该是：
+ COL_ORGANIZATION + " TEXT ); ";