java - 結果を jTable に入力すると ArrayOutOfBoundException が発生する

Question

Java swing を使用して検索システムを実行しようとしました:

    public void search(ActionEvent e){
    String textEntered=getJTextField_searchField().getText();
    if(textEntered.equals("")){
        JOptionPane.showMessageDialog(null,"Please enter a word");
    }
    else{
        kioskViewevents viewEvents=new kioskViewevents(textEntered);
        if(viewEvents.searchContent() == true){
            getJScrollPane().setVisible(false);
            getJScrollPane_search();
        }
        else{
            JOptionPane.showMessageDialog(null,"No result found");
        }


    }
}

このメソッドは、検索ボタンがクリックされた後に実行されます。前のテーブルを非表示にしてから、別のテーブルに置き換えます。次に、テーブル内に検索結果を入力します。

    public void SetUpJTable_search(){
    DefaultTableModel tableModel = (DefaultTableModel) jTableSearch.getModel();

    String[] data = new String[5];
    db.setUp("IT Innovation Project");
    String sql = "Select event_ID,event_Price,event_Title,event_Time,event_Date FROM crossEvent WHERE event_Title='"+ textEntered +"'";

    ResultSet resultSet = null;
    resultSet = db.readRequest(sql);
    try {
        while (resultSet.next()) {
            data[0] = resultSet.getString("event_ID");
            data[1] = resultSet.getString("event_Price");
            data[2] = resultSet.getString("event_Title");
            data[3] = resultSet.getString("event_Time");
            data[4] = resultSet.getString("event_Date");
            tableModel.addRow(data);
        }
        resultSet.close();
    } catch (Exception e) {
        System.out.println(e);
    }

}

検索テーブルをセットアップしました：

    private JTable getJTable_search() {
    String header[] = { "Event ID", "Price", "Title","Time","Date"};
    DefaultTableModel tableModel = (DefaultTableModel) jTable.getModel();
    tableModel.setColumnIdentifiers(header);
    jTableSearch.setAutoCreateColumnsFromModel(false);
    jTableSearch.getColumnModel().getColumn(0).setMinWidth(100);
    jTableSearch.getColumnModel().getColumn(0).setMaxWidth(100);

    jTableSearch.getColumnModel().getColumn(1).setMinWidth(200);
    jTableSearch.getColumnModel().getColumn(1).setMaxWidth(300);

    jTableSearch.getColumnModel().getColumn(2).setMinWidth(300);
    jTableSearch.getColumnModel().getColumn(2).setMaxWidth(400);

    jTableSearch.getColumnModel().getColumn(3).setMinWidth(100);
    jTableSearch.getColumnModel().getColumn(3).setMaxWidth(100);

    jTableSearch.getColumnModel().getColumn(4).setMinWidth(100);
    jTableSearch.getColumnModel().getColumn(4).setMaxWidth(100);


    jTableSearch.getTableHeader().setFont(new Font("Dialog", Font.PLAIN, 20));
    jTableSearch.getTableHeader().setForeground(Color.white);
    jTableSearch.getTableHeader().setBackground(new Color(102, 102, 102));
    jTableSearch.setRowHeight(50);
    jTableSearch.setBounds(new Rectangle(97, 157, 800, 450));
    jTableSearch.setFont(new Font("Dialog", Font.PLAIN, 18));

    return jTableSearch;
}

検索テーブルのスクロールペイン:

    private JScrollPane getJScrollPane_search(){
    if (jScrollPane_search == null) {
        jScrollPane_search = new JScrollPane();
        jScrollPane_search.setBounds(new Rectangle(75, 180, 800, 450));
        jScrollPane_search.setViewportView(getJTable_search());
    }
    SetUpJTable_search();
    return jScrollPane_search;
}

このコードのジャンク全体は、検索を実行する前に、データベースに存在するデータをテーブルに入力することです。

    private JTable getJTable() {
    String header[] = { "Event ID", "Price", "Title","Time","Date"};
    DefaultTableModel tableModel = (DefaultTableModel) jTable.getModel();
    tableModel.setColumnIdentifiers(header);
    // Hide Topic ID
    jTable.setAutoCreateColumnsFromModel(false);
    jTable.getColumnModel().getColumn(0).setMinWidth(100);
    jTable.getColumnModel().getColumn(0).setMaxWidth(100);

    jTable.getColumnModel().getColumn(1).setMinWidth(200);
    jTable.getColumnModel().getColumn(1).setMaxWidth(300);

    jTable.getColumnModel().getColumn(2).setMinWidth(300);
    jTable.getColumnModel().getColumn(2).setMaxWidth(400);

    jTable.getColumnModel().getColumn(3).setMinWidth(100);
    jTable.getColumnModel().getColumn(3).setMaxWidth(100);

    jTable.getColumnModel().getColumn(4).setMinWidth(100);
    jTable.getColumnModel().getColumn(4).setMaxWidth(100);

    jTable.getTableHeader().setFont(new Font("Dialog", Font.PLAIN, 20));
    jTable.getTableHeader().setForeground(Color.white);
    jTable.getTableHeader().setBackground(new Color(102, 102, 102));
    jTable.setRowHeight(50);
    jTable.setBounds(new Rectangle(97, 157, 800, 450));
    jTable.setFont(new Font("Dialog", Font.PLAIN, 18));

    return jTable;
}

    public void SetUpJTable() {
    DefaultTableModel tableModel = (DefaultTableModel) jTable.getModel();

    String[] data = new String[5];
    db.setUp("IT Innovation Project");
    String sql = "Select event_ID,event_Price,event_Title,event_Time,event_Date FROM crossEvent";

    ResultSet resultSet = null;

    resultSet = db.readRequest(sql);
    tableModel.getDataVector().removeAllElements();
    tableModel.fireTableDataChanged();
    try {
        while (resultSet.next()) {
            data[0] = resultSet.getString("event_ID");
            data[1] = resultSet.getString("event_Price");
            data[2] = resultSet.getString("event_Title");
            data[3] = resultSet.getString("event_Time");
            data[4] = resultSet.getString("event_Date");

            tableModel.addRow(data);
        }
        resultSet.close();
    } catch (Exception e) {
        System.out.println(e);
    }
}

ただし、次のエラーメッセージが表示されました。

    Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 0 >= 0
at java.util.Vector.elementAt(Unknown Source)
at javax.swing.table.DefaultTableColumnModel.getColumn(Unknown Source)
at kioskViewevents.ui.ViewEventsUI.getJTable_search(ViewEventsUI.java:158)
at kioskViewevents.ui.ViewEventsUI.getJScrollPane_search(ViewEventsUI.java:201)
at kioskViewevents.ui.ViewEventsUI.search(ViewEventsUI.java:330)
at kioskViewevents.ui.ViewEventsUI$4.actionPerformed(ViewEventsUI.java:315)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$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$400(Unknown Source)
at java.awt.EventQueue$2.run(Unknown Source)
at java.awt.EventQueue$2.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
at java.security.AccessControlContext$1.doIntersectionPrivilege(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.AccessControlContext$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)

ガイドはありますか？前もって感謝します。

score 2 · Accepted Answer

158行ViewEvents.java目はわかりませんが（言及していないため）、スタックトレースと残りのコードから、ArrayIndexOutOfBounds例外は次のような列にアクセスしようとしていることがわかります。

    jTable.getColumnModel().getColumn(4).setMaxWidth(100);  // Not sure which column is the issue

vectorそして、あなたはieにそれらの多くの列を持っていませんjTable.getColumnModel()。ベクトルのサイズを超える要素にアクセスしようとしています。

この問題が発生する理由/場所に関する正確な問題は異なる可能性がありますが、ここから調べ始める必要があります。

java - 結果を jTable に入力すると ArrayOutOfBoundException が発生する

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