Question

我试图将数据插入表Facture中，但是我收到了一段代码的崩溃报告：“ NOT NULL约束失败：Facture.Mode（代码1299）”。我没有找到修复它的方法。有人可以帮我吗？

有我的logcat。

07-22 13:59:01.565 2471-2471/com.example.pc.myapplication E/SQLiteDatabase: Error inserting U4=100 U1=100 A4=aa Q5=5 Q4=null A3=aaa A5=aa P5=100 P3=100 P4=100 U2=100 Q1=1 P2=100 A1=aa Q2=2 U5=100 Fournisseur=test Q3=3 U3=100 Datefactu=2/07/2018 Numero=123 A2=aaa Mode=null P1=100
android.database.sqlite.SQLiteConstraintException: NOT NULL constraint failed: Facture.Mode (code 1299)
    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.pc.myapplication.DatabaseHelper.insertFacture(DatabaseHelper.java:178)
    at com.example.pc.myapplication.facture1.onOKClick(facture1.java:103)
    at java.lang.reflect.Method.invoke(Native Method)
    at android.view.View$DeclaredOnClickListener.onClick(View.java:4720)

这是我的class facture.java：

    public void onOKClick ( View v )
{

    if (v.getId() == R.id.buttonfacok) {

        EditText numero = (EditText)findViewById(R.id.Etnum);
        EditText date = (EditText)findViewById(R.id.Etdat);
       EditText fournisseur = (EditText)findViewById(R.id.TVfour);
        EditText modepaiement = (EditText)findViewById(R.id.TVmode);
        EditText article1 = (EditText)findViewById(R.id.A1);
        EditText article2 = (EditText)findViewById(R.id.A2);
        EditText article3 = (EditText)findViewById(R.id.A3);
        EditText article4 = (EditText)findViewById(R.id.A4);
        EditText article5 = (EditText)findViewById(R.id.A5);
        EditText quantite1 = (EditText)findViewById(R.id.Q1);
        EditText quantite2 = (EditText)findViewById(R.id.Q2);
        EditText quantite3 = (EditText)findViewById(R.id.Q3);
        EditText quantite4 = (EditText)findViewById(R.id.Q4);
        EditText quantite5 = (EditText)findViewById(R.id.Q5);
        EditText unite1 = (EditText)findViewById(R.id.U1);
        EditText unite2 = (EditText)findViewById(R.id.U2);
        EditText unite3 = (EditText)findViewById(R.id.U3);
        EditText unite4 = (EditText)findViewById(R.id.U4);
        EditText unite5 = (EditText)findViewById(R.id.U5);
        EditText prix1 = (EditText)findViewById(R.id.P1);
        EditText prix2 = (EditText)findViewById(R.id.P2);
        EditText prix3 = (EditText)findViewById(R.id.P3);
        EditText prix4 = (EditText)findViewById(R.id.P4);
        EditText prix5 = (EditText)findViewById(R.id.P5);


        String strnumero = numero.getText().toString();
        String strdate = date.getText().toString();
        String strfournisseur = fournisseur.getText().toString();
        String strmodepaiement = modepaiement.getText().toString();
        String strarticle1 = article1.getText().toString();
        String strarticle2 = article2.getText().toString();
        String strarticle3 = article3.getText().toString();
        String strarticle4 = article4.getText().toString();
        String strarticle5 = article5.getText().toString();
        String strquantite1 = quantite1.getText().toString();
        String strquantite2 = quantite2.getText().toString();
        String strquantite3 = quantite3.getText().toString();
        String strquantite4 = quantite4.getText().toString();
        String strquantite5 = quantite5.getText().toString();
        String strunite1 = unite1.getText().toString();
        String strunite2 = unite2.getText().toString();
        String strunite3 = unite3.getText().toString();
        String strunite4 = unite4.getText().toString();
        String strunite5 = unite5.getText().toString();
        String strprix1 = prix1.getText().toString();
        String strprix2 = prix2.getText().toString();
        String strprix3 = prix3.getText().toString();
        String strprix4 = prix4.getText().toString();
        String strprix5 = prix5.getText().toString();


        Facture f = new Facture();
        f.setNumero(strnumero);
        f.setDatefactu(strdate);
        f.setFournisseur(strfournisseur);
        f.setMode(strmodepaiement);
        f.setA1(strarticle1);
        f.setA2(strarticle2);
        f.setA3(strarticle3);
        f.setA4(strarticle4);
        f.setA5(strarticle5);
        f.setQ1(strquantite1);
        f.setQ2(strquantite2);
        f.setQ3(strquantite3);
        f.setQ4(strquantite4);
        f.setQ5(strquantite5);
        f.setU1(strunite1);
        f.setU2(strunite2);
        f.setU3(strunite3);
        f.setU4(strunite4);
        f.setU5(strunite5);
        f.setP1(strprix1);
        f.setP2(strprix2);
        f.setP3(strprix3);
        f.setP4(strprix4);
        f.setP5(strprix5);

        helper.insertFacture(f);

            }
      }
          }

有我的数据库助手：

public class DatabaseHelper extends SQLiteOpenHelper {

private static final int DATABASE_VERSION = 4 ;
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_NOMETPRENOM = "nometprenom" ;
private static final String COLUMN_CIN = "cin" ;
private static final String COLUMN_MOTDEPASSE = "motdepasse" ;
private static final String TABlE_NAME1 = "Argent" ;
private static final String COLUMN_ENTREE = "Entree" ;
private static final String COLUMN_DATE = "date" ;
private static final String TABlE_NAME2 = "Facture" ;
private static final String COLUMN_NUMERO = "Numero" ;
private static final String COLUMN_DATEFOU = "Datefactu" ;
private static final String COLUMN_FOURNISSEUR = "Fournisseur" ;
private static final String COLUMN_MODE = "Mode" ;
private static final String COLUMN_Article1 = "A1" ;
private static final String COLUMN_Article2 = "A2" ;
private static final String COLUMN_Article3 = "A3" ;
private static final String COLUMN_Article4 = "A4" ;
private static final String COLUMN_Article5 = "A5" ;
private static final String COLUMN_Quantite1 = "Q1" ;
private static final String COLUMN_Quantite2 = "Q2" ;
private static final String COLUMN_Quantite3 = "Q3" ;
private static final String COLUMN_Quantite4 = "Q4" ;
private static final String COLUMN_Quantite5= "Q5" ;
private static final String COLUMN_Unitaire1 = "U1" ;
private static final String COLUMN_Unitaire2 = "U2" ;
private static final String COLUMN_Unitaire3 = "U3" ;
private static final String COLUMN_Unitaire4 = "U4" ;
private static final String COLUMN_Unitaire5 = "U5" ;
private static final String COLUMN_Prix1 = "P1" ;
private static final String COLUMN_Prix2 = "P2" ;
private static final String COLUMN_Prix3 = "P3" ;
private static final String COLUMN_Prix4 = "P4" ;
private static final String COLUMN_Prix5 = "P5" ;

SQLiteDatabase db;


private static final String TABlE_CREATE = "create table contacts ( id integer primary key not null , nometprenom Text not null , cin Text not null , motdepasse Text not null);" ;
private static final String TABlE_CREATE1 = "create table Argent ( id integer primary key not null , date Text not null , Entree Text not null);" ;
private static final String TABlE_CREATE2 = "create table Facture ( id integer primary key not null , Datefactu Text not null , Numero Text not null , Fournisseur Text not null , Mode Text not null , A1 Text not null , A2 Text not null , A3 Text not null , A4 Text not null , A5 Text not null , Q1 Text not null , Q2 Text not null , Q3 Text not null , Q4 Text not null , Q5 Text not null , U1 Text not null , U2 Text not null , U3 Text not null , U4 Text not null , U5 Text not null , P1 Text not null , P2 Text not null , P3 Text not null , P4 Text not null , P5 Text not null);" ;

public DatabaseHelper(Context context)
{
    super(context ,DATABASE_NAME , null , DATABASE_VERSION);
}

@Override
public void onCreate(SQLiteDatabase db) {
    db.execSQL(TABlE_CREATE2);
    this.db=db;
}


public void insertFacture(Facture f)
{
    db = this.getWritableDatabase();
    ContentValues values = new ContentValues();

    String query = "select * from Facture" ;
    Cursor cursor = db.rawQuery(query , null) ;
    int count = cursor.getCount();

    values.put(COLUMN_NUMERO, f.getNumero());
    values.put(COLUMN_DATEFOU , f.getDatefactu());
    values.put(COLUMN_FOURNISSEUR , f.getFournisseur());
    values.put(COLUMN_MODE, f.getMode());
    values.put(COLUMN_Article1, f.getA1());
    values.put(COLUMN_Article2, f.getA2());
    values.put(COLUMN_Article3, f.getA3());
    values.put(COLUMN_Article4, f.getA4());
    values.put(COLUMN_Article5, f.getA5());
    values.put(COLUMN_Quantite1, f.getQ1());
    values.put(COLUMN_Quantite2, f.getQ2());
    values.put(COLUMN_Quantite3, f.getQ3());
    values.put(COLUMN_Quantite4, f.getQ4());
    values.put(COLUMN_Quantite5, f.getQ5());
    values.put(COLUMN_Unitaire1, f.getU1());
    values.put(COLUMN_Unitaire2, f.getU2());
    values.put(COLUMN_Unitaire3, f.getU3());
    values.put(COLUMN_Unitaire4, f.getU4());
    values.put(COLUMN_Unitaire5, f.getU5());
    values.put(COLUMN_Prix1, f.getP1());
    values.put(COLUMN_Prix2, f.getP2());
    values.put(COLUMN_Prix3, f.getP3());
    values.put(COLUMN_Prix4, f.getP4());
    values.put(COLUMN_Prix5, f.getP5());

    db.insert(TABlE_NAME2,null, values);
}




@Override
            public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {

          String query2 = "DROP TABLE IF EXISTS "+TABlE_NAME2 ;

            db.execSQL(query2);
            this.onCreate(db);
        }

        }

谢谢。

Answer 1

根据Error inserting U4=100 U1=100 A4=aa Q5=5 Q4=null A3=aaa A5=aa P5=100 P3=100 P4=100 U2=100 Q1=1 P2=100 A1=aa Q2=2 U5=100 Fournisseur=test Q3=3 U3=100 Datefactu=2/07/2018 Numero=123 A2=aaa Mode=null P1=100

的模式值

为空，您已经定义了表，因此根据.... , Mode Text not null , ....不能为空。

您需要将Facture对象传递给提供或导致使用非空值的insertFacture方法（如果Mode不为null，则只能设置列的ContentValue），或者需要从列的定义中删除not null约束。

@crammeur“模式”不能为null。我声明为字符串，但没有结果

声明变量时，其值将为null（除非它是原始类型）。

一种解决方法是将以下内容用作insertFacture方法：-

public void insertFacture(Facture f) {
    db = this.getWritableDatabase();
    ContentValues values = new ContentValues();

    String query = "select * from Facture" ;
    Cursor cursor = db.rawQuery(query , null) ;
    int count = cursor.getCount();

    values.put(COLUMN_NUMERO, f.getNumero());
    values.put(COLUMN_DATEFOU , f.getDatefactu());
    values.put(COLUMN_FOURNISSEUR , f.getFournisseur());
    if (f.getMode != null ) {
        values.put(COLUMN_MODE, f.getMode());
    } else {
        values.put(COLUMN_MODE,"No mode supplied");
    }
    values.put(COLUMN_Article1, f.getA1());
    values.put(COLUMN_Article2, f.getA2());
    values.put(COLUMN_Article3, f.getA3());
    values.put(COLUMN_Article4, f.getA4());
    values.put(COLUMN_Article5, f.getA5());
    values.put(COLUMN_Quantite1, f.getQ1());
    values.put(COLUMN_Quantite2, f.getQ2());
    values.put(COLUMN_Quantite3, f.getQ3());
    values.put(COLUMN_Quantite4, f.getQ4());
    values.put(COLUMN_Quantite5, f.getQ5());
    values.put(COLUMN_Unitaire1, f.getU1());
    values.put(COLUMN_Unitaire2, f.getU2());
    values.put(COLUMN_Unitaire3, f.getU3());
    values.put(COLUMN_Unitaire4, f.getU4());
    values.put(COLUMN_Unitaire5, f.getU5());
    values.put(COLUMN_Prix1, f.getP1());
    values.put(COLUMN_Prix2, f.getP2());
    values.put(COLUMN_Prix3, f.getP3());
    values.put(COLUMN_Prix4, f.getP4());
    values.put(COLUMN_Prix5, f.getP5());

    db.insert(TABlE_NAME2,null, values);
}

如果getMode方法的值返回null，则它将使用未提供模式的值。虽然不一定是理想的解决方案。真正的解决方法是确定为什么f.setMode(strmodepaiement);返回null，这很可能是由于Facture的setMode方法将Mode设置为null（或者根本没有设置Mode）所致。

NOT NULL约束失败：Facture.Mode

1 个答案: