我错了吗？

Question

我想获得实际创建的主键。 我需要立即为另一个方法，但它返回一个错误。 但它返回一个SQLE。我不知道我的错误。 我希望我能给你一些信息。 （System.out.println（id）仅供我检查它是否返回正确的PrimaryKey）

CREATETABLE：

CREATE TABLE "MitarbeiterInfo" ("Vorname" TEXT, "Nachname" TEXT, "Geburtsdatum" CHAR, "Wohnadresse" TEXT, "Postleitzahl" TEXT, "Eintrittsdatum" CHAR, "Handynummer" TEXT, "Email" TEXT, "ID" INTEGER PRIMARY KEY  AUTOINCREMENT  NOT NULL )

GuiClass：

public void actionPerformed(ActionEvent e) {
            new Datenbank().mitarbeiterHinzufügen(
                    textField.getText(),textField_1.getText(),textField_2.getText(),textField_3.getText(),
                    textField_4.getText(),textField_5.getText(),textField_6.getText(),textField_7.getText());
            refreshTable();
        }

DatabaseClass：

public void mitarbeiterHinzufügen(String v, String n, String g, String w, String p, String e, String h, String email){
    conn=Datenbank.dbConnector();


    try {
        String query="insert into MitarbeiterInfo (Vorname,Nachname,Geburtsdatum,Wohnadresse,Postleitzahl,Eintrittsdatum,Handynummer,Email,ID) values (?,?,?,?,?,?,?,?,?)";
        PreparedStatement pst=conn.prepareStatement(query);
        pst.setString(1, v);
        pst.setString(2, n);
        pst.setString(3, g);
        pst.setString(4, w);
        pst.setString(5, p);
        pst.setString(6, e);
        pst.setString(7, h);
        pst.setString(8, email);

        pst.execute();

        String identitiy = "SELECT IDENTITY_VAL_LOCAL() FROM MitarbeiterInfo";
        ResultSet rs = pst.executeQuery(identitiy);
        rs.next();
        int id = rs.getInt("1");
        System.out.println(id);


        JOptionPane.showMessageDialog(null, "Mitarbeiter hinzugefügt");

        pst.close();
    } catch (Exception b) {
        b.printStackTrace();
    }
}

那个错误发生了：

java.sql.SQLException: not implemented by SQLite JDBC driver
at org.sqlite.Unused.unused(Unused.java:31)
at org.sqlite.PrepStmt.executeQuery(PrepStmt.java:596)
***at Datenbank.mitarbeiterHinzufügen(Datenbank.java:69)***
at GUI$3.actionPerformed(GUI.java:138)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$500(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

Answer 1

在java.sql.ResultSet中，下面的方法是为getInt：

定义的

getInt(int columnIndex)
getInt(String columnLabel)

我在您的代码中发现以下行的问题：

int id = rs.getInt("1");

你应该通过其中一个选项获得价值：

int id = rs.getInt(1);

或者

int id = rs.getInt("Column_name");

Answer 2

尝试

SELECT last_insert_rowid() FROM MitarbeiterInfo代替。

您获得的例外情况似乎暗示SQLite不支持IDENTITY_VAL_LOCAL()。