SQliteデータベースでサインアップアクティビティを作成しました。マークボタンを押したときにアプリケーションでランタイムエラーが発生しました。 DatabaseHelperクラスの36私はデータベースのために作成し、サインアップ活動でエラーを表示しますが、私はそれらを解決できません。すべてのヘルプやアイデアはランタイムエラー:SQLiteException:近くの "連絡先":構文エラーアプリケーションが動作を停止しました
PS(イム新しいここ
は、スタックトレース
E/SQLiteLog: (1) near "contact": syntax error
06-29 17:48:21.680 5897-5897/kanepraktiki2017.xyz.mreprogramming.kanepraktiki E/AndroidRuntime: FATAL EXCEPTION: main
Process: kanepraktiki2017.xyz.mreprogramming.kanepraktiki, PID: 5897
java.lang.IllegalStateException: Could not execute method of the activity
at android.view.View$1.onClick(View.java:4240)
at android.view.View.performClick(View.java:5184)
at android.view.View$PerformClick.run(View.java:20893)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5938)
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:1400)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1195)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at android.view.View$1.onClick(View.java:4235)
at android.view.View.performClick(View.java:5184)
at android.view.View$PerformClick.run(View.java:20893)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5938)
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:1400)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1195)
Caused by: android.database.sqlite.SQLiteException: near "contact": syntax error (code 1): , while compiling: create contact table(id integer primary key not null , name text not null, email text not null , username text not null, password text not null);
at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:1093)
at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:670)
at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588)
at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:59)
at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:31)
at android.database.sqlite.SQLiteDatabase.executeSql(SQLiteDatabase.java:1798)
at android.database.sqlite.SQLiteDatabase.execSQL(SQLiteDatabase.java:1729)
at kanepraktiki2017.xyz.mreprogramming.kanepraktiki.DabaseHelper.onCreate(DabaseHelper.java:36)
at android.database.sqlite.SQLiteOpenHelper.getDatabaseLocked(SQLiteOpenHelper.java:251)
at android.database.sqlite.SQLiteOpenHelper.getWritableDatabase(SQLiteOpenHelper.java:163)
at kanepraktiki2017.xyz.mreprogramming.kanepraktiki.DabaseHelper.insertContact(DabaseHelper.java:41)
at kanepraktiki2017.xyz.mreprogramming.kanepraktiki.Signup.onSignUpClick(Signup.java:49)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at android.view.View$1.onClick(View.java:4235)
at android.view.View.performClick(View.java:5184)
at android.view.View$PerformClick.run(View.java:20893)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:145)
そしてDatabaseHelper.javaあるので、長いポスト申し訳ありません、おそらく明らかなエラーアンドロイド開発中とstackoverflowの中には本当に有用であろうコード$
Public class DabaseHelper extends SQLiteOpenHelper {
private static final int DATABASE_VERSION = 1;
private static final String DATABASE_name = "contacts.db";
private static final String TABLE_name = "contacts";
private static final String COLUMN_id = "id";
private static final String COLUMN_name = "name";
private static final String COLUMN_email = "email";
private static final String COLUMN_username = "username";
private static final String COLUMN_password = "password";
SQLiteDatabase db;
private static final String TABLE_create = "create contact table(id integer primary key not null , " +
"name text not null, email text not null , username text not null, password text not null);";
public DabaseHelper(Context context) {
super(context, DATABASE_name, null, DATABASE_VERSION);
}
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL(TABLE_create);
this.db = db;
}
public void insertContact(Contact c) {
db = this.getWritableDatabase();
ContentValues values = new ContentValues();
String query="select * from contacts";
Cursor cursor=db.rawQuery(query, null);
int count=cursor.getCount();
values.put(COLUMN_id, count);
values.put(COLUMN_name, c.getName());
values.put(COLUMN_email, c.getEmail());
values.put(COLUMN_username, c.getUsername());
values.put(COLUMN_password, c.getPassword());
db.insert(DATABASE_name, null, values);
db.close();
}
public String searchpass(String username) {
db = this.getReadableDatabase();
String query = "select username, password from" + TABLE_name;
Cursor cursor = db.rawQuery(query, null);
String a, b;
b = "Δεν βρέθηκε";
if (cursor.moveToFirst()) {
do {
a = cursor.getString(0);
if (a.equals(username)) {
b = cursor.getString(1);
break;
}
}
while (cursor.moveToNext());
}
return b;
}
@Override
public void onUpgrade(SQLiteDatabase db, int i, int i1) {
String query ="Drop Table If Exists"+TABLE_name;
db.execSQL(query);
this.onCreate(db);
}
}
あなたの質問 – RamPrakash
'問い合わせのCREATE TABLEをフォーマットしてください...'有効なSQLコマンドではありません。 –
ありがとう、私はそれを修正しましたが、まだエラーが発生しました – Stefania