插入android.database.sqlite.SQLiteDatatypeMismatchException时出错：数据类型不匹配（代码20）

时间：2017-06-03 10:18:04

标签： android sql database sqlite insert

我的问题是关于我的数据库插入语句。我在te插入语句中添加了一个参数，现在每次我尝试添加一个人时它都会给我这个错误。我已经改变了数据库版本，但它仍然给我一个＆＃34;数据不匹配＆＃34;错误。我把这个参数添加到插入语句beaucaus它没有保存ID（字符串），每次我退出时，我做的id（用户名+密码）改为整数..所以我想我的数据库认为id是一个整数但是我希望它是一个String。我实际上认为每种类型都是正确的。

这是我的代码，感谢您的帮助！

数据库：

public class DatabaseHelper extends SQLiteOpenHelper {

private static DatabaseHelper instance;

//Database Versie
public static final int database_version = 3;

//Database Naam
public static final String DATABASE_NAME = "Biercafevlaanderen.db";

//Tabel Namen
public static final String TABLE_NAME_PROFIELEN = "profielen";
public static final String TABLE_NAME_BIERCAFES = "biercafes";

//Kollom namen
// voor tabel profiles
public static String COL_1_PROFIELEN= "profile_id";
public static final String COL_2_PROFIELEN= "username";
public static final String COL_3_PROFIELEN = "firstname";
public static final String COL_4_PROFIELEN = "email";
public static final String COL_5_PROFIELEN = "password";

//voor tabel
public static final String COL_1_BIERCAFES = "biercafe_id";
public static final String COL_2_BIERCAFES = "biercafe_name";
public static final String COL_3_BIERCAFES = "biercafe_postcode";
public static final String COL_4_BIERCAFES = "biercafe_plaats";
public static final String COL_5_BIERCAFES = "biercafe_gemeente";
public static final String COL_6_BIERCAFES = "biercafe_omschrijving";
public static final String COL_7_BIERCAFES = "biercafe_phone";
public static final String COL_8_BIERCAFES = "biercafe_website";
public static final String COL_9_BIERCAFES = "biercafe_email";
public static final String COL_10_BIERCAFES = "profielid";


public static synchronized DatabaseHelper getInstance(Context context) {
    if (instance == null) {
        instance = new DatabaseHelper(context.getApplicationContext());
    }
    return instance;
}

public DatabaseHelper(Context context) {
    super(context, DATABASE_NAME, null, database_version);
    SQLiteDatabase db = this.getWritableDatabase();
}

//HERE FALLS THE ERROR
public int insertProfiel (String id,String username, String password) {
    SQLiteDatabase db = this.getWritableDatabase();
    ContentValues contentValues = new ContentValues();
    contentValues.put(COL_1_PROFIELEN,id);
    contentValues.put(COL_2_PROFIELEN, username);
    contentValues.put(COL_5_PROFIELEN, password);

    // de insert methode geeft -1 terug als het niet gelukt is en de row value als het wel gelukt is
    long result = db.insert(TABLE_NAME_PROFIELEN, null, contentValues);

    return (int)result;
}
@Override
public void onCreate(SQLiteDatabase db) {
    // de tabel creëren voor de profielen
    db.execSQL("CREATE TABLE IF NOT EXISTS " + TABLE_NAME_PROFIELEN + " (" +     COL_1_PROFIELEN + " INTEGER PRIMARY KEY AUTOINCREMENT, " + COL_2_PROFIELEN + " VARCHAR(255), " + COL_3_PROFIELEN + " VARCHAR(255), " + COL_4_PROFIELEN + " VARCHAR(255), " + COL_5_PROFIELEN + " VARCHAR(255))");

    // de tabel creëren voor de locaties met foreign key profile_id
    db.execSQL("CREATE TABLE IF NOT EXISTS " + TABLE_NAME_BIERCAFES + " (" + COL_1_BIERCAFES + " INTEGER PRIMARY KEY, " + COL_2_BIERCAFES + " VARCHAR(255), " + COL_3_BIERCAFES + " VARCHAR(255), " + COL_4_BIERCAFES + " VARCHAR(255), " + COL_5_BIERCAFES + " VARCHAR(255), " + COL_6_BIERCAFES +
            " VARCHAR(255), " + COL_7_BIERCAFES + " VARCHAR(255), " + COL_8_BIERCAFES + " VARCHAR(255), " + COL_9_BIERCAFES + " VARCHAR(255), " + COL_10_BIERCAFES + " VARCHAR(255), FOREIGN KEY (" + COL_10_BIERCAFES + ") REFERENCES " + TABLE_NAME_PROFIELEN + "(" + COL_1_PROFIELEN + "))");

}

@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
    db.execSQL("DROP TABLE IF EXISTS " + TABLE_NAME_PROFIELEN);
    db.execSQL("DROP TABLE IF EXISTS " + TABLE_NAME_BIERCAFES);
    onCreate(db);
}
}

这是我在db中插入用户的地方 注册：

Profiel p = new Profiel(etUsername.getText().toString()+""+etPassword.getText().toString(),etUsername.getText().toString(),"","",etConfPass.getText().toString());
                                mListener.getMyDB().insertProfiel(p.getId(),p.getUsername(), p.getPassword());
                                System.out.println(mListener.getMyDB().insertProfiel(p.getId(),p.getUsername(), p.getPassword()));
                                Intent intent = new Intent(getActivity(), MainActivity.class);
                                intent.putExtra("profiel", p.toJson());
                                Snackbar.make(v, "Registered succesfully", Snackbar.LENGTH_LONG)
                                        .setAction("Action", null).show();
                                startActivity(intent);
                                getActivity().finish();

如果你需要其他相关课程，请问我。 这是错误：

E/SQLiteLog: (20) statement aborts at 5: [INSERT INTO profielen(password,username,profile_id) VALUES (?,?,?)] datatype mismatch
E/SQLiteDatabase: Error inserting password=zzz username=zzz profile_id=zzzzzz
              android.database.sqlite.SQLiteDatatypeMismatchException: datatype mismatch (code 20)
                  at android.database.sqlite.SQLiteConnection.nativeExecuteForLastInsertedRowId(Native Method)
                  at android.database.sqlite.SQLiteConnection.executeForLastInsertedRowId(SQLiteConnection.java:782)
                  at android.database.sqlite.SQLiteSession.executeForLastInsertedRowId(SQLiteSession.java:788)
                  at android.database.sqlite.SQLiteStatement.executeInsert(SQLiteStatement.java:86)
                  at android.database.sqlite.SQLiteDatabase.insertWithOnConflict(SQLiteDatabase.java:1474)
                  at android.database.sqlite.SQLiteDatabase.insert(SQLiteDatabase.java:1343)
                  at com.example.cedri.bcv.DB.DatabaseHelper.insertProfiel(DatabaseHelper.java:144)
                  at com.example.cedri.bcv.Fragments.RegisterFragment$2.onClick(RegisterFragment.java:66)
                  at android.view.View.performClick(View.java:5637)
                  at android.view.View$PerformClick.run(View.java:22429)
                  at android.os.Handler.handleCallback(Handler.java:751)
                  at android.os.Handler.dispatchMessage(Handler.java:95)
                  at android.os.Looper.loop(Looper.java:154)
                  at android.app.ActivityThread.main(ActivityThread.java:6121)
                  at java.lang.reflect.Method.invoke(Native Method)
                  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:889)
                  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:779)

insertstatement给了我这个：

I/System.out: -1

感谢您的帮助！

1 个答案:

答案 0 :(得分：0)

  

public int insertProfiel（ String id ，String username，String password）   {       SQLiteDatabase db = this.getWritableDatabase（）;       ContentValues contentValues = new ContentValues（）;       contentValues.put（COL_1_PROFIELEN，ID）;       contentValues.put（COL_2_PROFIELEN，username）;       contentValues.put（COL_5_PROFIELEN，密码）; //代码的其余部分}

id不应该是String，而是Integer。这就是您收到此错误的原因，因为当您创建表PROFILIEN时，您将COL_1_PROFILIEN（profilien_id）声明为INTEGER。

  

db.execSQL（＆＃34; CREATE TABLE IF NOT NOT EXISTS＆＃34; + TABLE_NAME_PROFIELEN +＆＃34;   （＆＃34; + COL_1_PROFIELEN +＆＃34; INTEGER PRIMARY KEY AUTOINCREMENT，＆＃34; +   COL_2_PROFIELEN +＆＃34; VARCHAR（255），＆＃34; + COL_3_PROFIELEN +＆＃34;   VARCHAR（255），＆＃34; + COL_4_PROFIELEN +＆＃34; VARCHAR（255），＆＃34; +   COL_5_PROFIELEN +＆＃34; VARCHAR（255））＆＃34）;

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