使用雨雲給圓角JButton的

Question

我一直在使用的圖像創建一個按鈕：

ImageIcon water = new ImageIcon("button.jpeg"); 

    JButton exceptionButton = new JButton(water); 

我希望按鈕有圓角，但我不能這樣做。我聽說過Nimbus。我應該使用它來獲得帶有或不帶圖像的按鈕的圓角？

Answer 1

試試這個課程，這是一個使用netbeans的簡單方法。

/* 
* NewJFrame.java 
* 
* Created on 3 mars 2014, 10:08 
*/ 

package GUI; 

import java.util.logging.Level; 
import java.util.logging.Logger; 
import javax.swing.SwingUtilities; 
import javax.swing.UIManager; 
import javax.swing.UnsupportedLookAndFeelException; 

/** 
* 
* @author boussarhane 
*/ 
public class NewJFrame extends javax.swing.JFrame { 
    protected UIManager.LookAndFeelInfo[] m_infos; 
    String[] LAFNames; 

    /** Creates new form NewJFrame */ 
    public NewJFrame() { 
     initComponents(); 
     m_infos = UIManager.getInstalledLookAndFeels(); 
     LAFNames = new String[m_infos.length]; 
     for (int i = 0; i < m_infos.length; i++) { 
      //LAFNames[i] = m_infos[i].getName(); 
      if (m_infos[i].getName().equals("Nimbus")) {     
       try { 

        UIManager.setLookAndFeel(m_infos[i].getClassName()); 
        SwingUtilities.updateComponentTreeUI(this); 
       } catch (ClassNotFoundException ex) { 
        Logger.getLogger(Acceuil.class.getName()).log(Level.SEVERE, null, ex); 
       } catch (InstantiationException ex) { 
        Logger.getLogger(Acceuil.class.getName()).log(Level.SEVERE, null, ex); 
       } catch (IllegalAccessException ex) { 
        Logger.getLogger(Acceuil.class.getName()).log(Level.SEVERE, null, ex); 
       } catch (UnsupportedLookAndFeelException ex) { 
        Logger.getLogger(Acceuil.class.getName()).log(Level.SEVERE, null, ex); 
       } 
      } 
     } 

    } 

    /** This method is called from within the constructor to 
    * initialize the form. 
    * WARNING: Do NOT modify this code. The content of this method is 
    * always regenerated by the Form Editor. 
    */ 
    // <editor-fold defaultstate="collapsed" desc="Generated Code"> 
    private void initComponents() { 

     jButton1 = new javax.swing.JButton(); 
     jButton2 = new javax.swing.JButton(); 

     setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); 

     jButton1.setText("jButton1"); 

     jButton2.setText("jButton2"); 

     javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane()); 
     getContentPane().setLayout(layout); 
     layout.setHorizontalGroup(
      layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) 
      .addGroup(layout.createSequentialGroup() 
       .addContainerGap() 
       .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) 
        .addComponent(jButton1) 
        .addComponent(jButton2)) 
       .addContainerGap(315, Short.MAX_VALUE)) 
     ); 
     layout.setVerticalGroup(
      layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) 
      .addGroup(layout.createSequentialGroup() 
       .addGap(41, 41, 41) 
       .addComponent(jButton1) 
       .addGap(18, 18, 18) 
       .addComponent(jButton2) 
       .addContainerGap(195, Short.MAX_VALUE)) 
     ); 

     pack(); 
    }// </editor-fold> 

    /** 
    * @param args the command line arguments 
    */ 
    public static void main(String args[]) { 
     java.awt.EventQueue.invokeLater(new Runnable() { 
      public void run() { 
       new NewJFrame().setVisible(true); 
      } 
     }); 
    } 

    // Variables declaration - do not modify 
    private javax.swing.JButton jButton1; 
    private javax.swing.JButton jButton2; 
    // End of variables declaration 

}