如何更改JOptionPane的背景颜色？

Question

我已将JOptionPane添加到我的应用程序中,但我不知道如何将背景颜色更改为白色？

`int option = JOptionPane.showConfirmDialog(bcfiDownloadPanel,
            new Object[]{"Host: " + source, panel},
            "Authorization Required",
            JOptionPane.OK_CANCEL_OPTION,
            JOptionPane.PLAIN_MESSAGE
    );

    if (option == JOptionPane.OK_OPTION) {                  }`

Answer 1

通过使用UIManager该类

 import javax.swing.UIManager;

 UIManager UI=new UIManager();
 UI.put("OptionPane.background",new ColorUIResource(255,0,0));
 UI.put("Panel.background",new ColorUIResource(255,0,0));

要么

 UIManager UI=new UIManager();
 UI.put("OptionPane.background", Color.white);
 UI.put("Panel.background", Color.white);

 JOptionPane.showMessageDialog(null,"Text","SetColor",JOptionPane.INFORMATION_MESSAGE);