java从JasperViewer中删除或禁用保存按钮

Question

如何从JasperViewer中删除保存按钮？我找到了一种方法，但它是从它的JRViewer组件中找到的，我一点也不相信

Answer 1

特别感谢borj。以及删除保存和打印按钮的更新代码

public class CustomeJasperViewer extends JasperViewer {

    public CustomeJasperViewer(JasperPrint jasperPrint, boolean isExitOnClose) {
        super(jasperPrint, isExitOnClose);

        try {

            JPanel jPanel = ((JPanel) this.viewer.getComponent(0));

            Component btnSave = jPanel.getComponent(0);
            Component btnPrint = jPanel.getComponent(1);

            jPanel.remove(btnSave);
            jPanel.remove(btnSave);

        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

public void viewReport (){

    try {

        JasperReport jasperReport = JasperCompileManager.compileReport(rep_path);
        JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, rep_map, Connection);
        CustomeJasperViewer jv = new CustomeJasperViewer(jasperPrint, false);
        jv.setVisible(true);

    } catch (JRException ex) {
        JOptionPane.showMessageDialog(null, ex.getMessage());
    }
}

Answer 2

private void adjustViewerLayoutAndLookAndShow(JasperViewer viewer) {
    Container contentPane = viewer.getContentPane();
    JRViewerToolbar toolbar = (JRViewerToolbar) ((JRViewer)((JPanel)contentPane.getComponents()[0]).getComponent(0)).getComponent(0);

    JButton btnSave = (JButton) toolbar.getComponent(0);
    btnSave.setEnabled(false);

    JButton btnPrint = (JButton) toolbar.getComponent(1);
    btnPrint.setEnabled(false);


    viewer.setTitle(extraInfo);
    viewer.setVisible(true);
}

Answer 3

我知道这已经很古老了，但在我把它投入使用之前，我已经在这里绊倒了，所以为了未来的研究人员，我将在这里展示什么对我有效

import javax.swing.JPanel;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.view.JasperViewer;

public class MyJasperViewer extends JasperViewer {

    public MyJasperViewer(JasperPrint jasperPrint, boolean isExitOnClose) {
        super(jasperPrint, isExitOnClose);

        try {
            ((JPanel) this.viewer.getComponent(0)).remove(0);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

现在像这样使用它

JasperPrint jp = JasperFillManager.fillReport(url.openStream(), map, conn);

MyJasperViewer jv = new MyJasperViewer(jp, false);
jv.setVisible(true);