javax.swing.JLabel lbl = new javax.swing.JLabel();
lbl.setText("");
lbl.setBackground(java.awt.Color.white);
lbl.setForeground(java.awt.Color.white);
add(lbl ,new GridBagConstraints(1,0,1,1,0.0,1.0,anchor,gridBagConstraints.VERTICAL,insets,20,5));不知道为什么lbl的背景色还是窗体的颜色.
lbl.setText("");
lbl.setBackground(java.awt.Color.white);
lbl.setForeground(java.awt.Color.white);
add(lbl ,new GridBagConstraints(1,0,1,1,0.0,1.0,anchor,gridBagConstraints.VERTICAL,insets,20,5));不知道为什么lbl的背景色还是窗体的颜色.
lbl.setOpaque(true);