在我的 Main 类的 main 方法中，我有以下代码:
LogRegGUI mainMenu = new LogRegGUI();
mainMenu.setVisible(true);
LogRegGUI 构造函数:
public LogRegGUI() {
initComponents();
}
LogRegGUI 是我的 GUI 类。当我右键单击该类并选择“运行”时，我的 GUI 显示完美。
当我运行整个程序并调用 main 时，GUI 格式略有不正确(颜色不匹配且按钮未正确显示)。
我做错了什么？
额外信息:
Netbeans 7.3 Beta 2
Mac OS X Mountain Lion
Java Swing
LogRegGUI 代码:
package com.john.spp.view;
import java.sql.ResultSet;
import java.sql.Statement;
public class LogRegGUI extends javax.swing.JFrame {
/**
* Creates new form LoginGUI
*/
public LogRegGUI() {
initComponents();
}
/**
* 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.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jScrollPane1 = new javax.swing.JScrollPane();
jEditorPane1 = new javax.swing.JEditorPane();
jPanel1 = new javax.swing.JPanel();
settingsButton = new javax.swing.JButton();
helpButton = new javax.swing.JButton();
logoutButton = new javax.swing.JButton();
dataVaultButton = new javax.swing.JButton();
jPanel2 = new javax.swing.JPanel();
loginButton = new javax.swing.JButton();
registerButton = new javax.swing.JButton();
jLabel3 = new javax.swing.JLabel();
jScrollPane1.setViewportView(jEditorPane1);
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setBackground(new java.awt.Color(0, 0, 0));
setResizable(false);
jPanel1.setBackground(new java.awt.Color(255, 255, 255));
jPanel1.setPreferredSize(new java.awt.Dimension(748, 134));
settingsButton.setText("Settings");
settingsButton.setEnabled(false);
settingsButton.setFocusPainted(false);
helpButton.setText("Help");
helpButton.setFocusPainted(false);
logoutButton.setText("Logout");
logoutButton.setEnabled(false);
logoutButton.setFocusPainted(false);
dataVaultButton.setText("Data Vault");
dataVaultButton.setEnabled(false);
dataVaultButton.setFocusPainted(false);
org.jdesktop.layout.GroupLayout jPanel1Layout = new org.jdesktop.layout.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(jPanel1Layout.createSequentialGroup()
.add(12, 12, 12)
.add(dataVaultButton, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 172, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(org.jdesktop.layout.LayoutStyle.UNRELATED)
.add(settingsButton, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 172, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(org.jdesktop.layout.LayoutStyle.UNRELATED)
.add(helpButton, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 172, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(org.jdesktop.layout.LayoutStyle.UNRELATED)
.add(logoutButton, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 172, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.addContainerGap(12, Short.MAX_VALUE))
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(org.jdesktop.layout.GroupLayout.TRAILING, jPanel1Layout.createSequentialGroup()
.addContainerGap()
.add(jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING, false)
.add(settingsButton, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 122, Short.MAX_VALUE)
.add(helpButton, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.add(logoutButton, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.add(org.jdesktop.layout.GroupLayout.LEADING, dataVaultButton, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addContainerGap(org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
jPanel2.setBackground(new java.awt.Color(255, 255, 255));
jPanel2.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED));
jPanel2.setForeground(new java.awt.Color(255, 255, 255));
loginButton.setText("Login");
loginButton.setFocusPainted(false);
loginButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
loginButtonSceneActionPerformed(evt);
}
});
registerButton.setText("Register");
registerButton.setFocusPainted(false);
registerButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
registerSceneButtonActionPerformed(evt);
}
});
org.jdesktop.layout.GroupLayout jPanel2Layout = new org.jdesktop.layout.GroupLayout(jPanel2);
jPanel2.setLayout(jPanel2Layout);
jPanel2Layout.setHorizontalGroup(
jPanel2Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(0, 385, Short.MAX_VALUE)
.add(jPanel2Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(jPanel2Layout.createSequentialGroup()
.add(14, 14, 14)
.add(loginButton, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 172, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(org.jdesktop.layout.LayoutStyle.UNRELATED)
.add(registerButton, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 172, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.addContainerGap(15, Short.MAX_VALUE)))
);
jPanel2Layout.setVerticalGroup(
jPanel2Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(0, 306, Short.MAX_VALUE)
.add(jPanel2Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(jPanel2Layout.createSequentialGroup()
.add(92, 92, 92)
.add(jPanel2Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING, false)
.add(loginButton, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 122, Short.MAX_VALUE)
.add(registerButton, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addContainerGap(92, Short.MAX_VALUE)))
);
jLabel3.setFont(new java.awt.Font("Calibri", 1, 24)); // NOI18N
jLabel3.setText("SPARTAN PASSWORD PROTECTOR");
org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(layout.createSequentialGroup()
.add(jPanel1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.add(0, 0, Short.MAX_VALUE))
.add(layout.createSequentialGroup()
.add(176, 176, 176)
.add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.CENTER)
.add(jLabel3)
.add(jPanel2, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
.addContainerGap(org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(layout.createSequentialGroup()
.add(jPanel1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.add(18, 18, 18)
.add(jLabel3)
.add(18, 18, 18)
.add(jPanel2, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.addContainerGap(52, Short.MAX_VALUE))
);
pack();
}// </editor-fold>
private void loginButtonSceneActionPerformed(java.awt.event.ActionEvent evt) {
LoginGUI itemloader = new LoginGUI();
itemloader.setVisible(true);
this.setVisible(false);
}
private void registerSceneButtonActionPerformed(java.awt.event.ActionEvent evt) {
RegisterGUI itemloader = new RegisterGUI();
itemloader.setVisible(true);
this.setVisible(false);
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(LogRegGUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(LogRegGUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(LogRegGUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(LogRegGUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new LogRegGUI().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton dataVaultButton;
private javax.swing.JButton helpButton;
private javax.swing.JEditorPane jEditorPane1;
private javax.swing.JLabel jLabel3;
private javax.swing.JPanel jPanel1;
private javax.swing.JPanel jPanel2;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JButton loginButton;
private javax.swing.JButton logoutButton;
private javax.swing.JButton registerButton;
private javax.swing.JButton settingsButton;
// End of variables declaration
}
最佳答案
同样只是一个猜测，但是尝试显示 LogRegGUI GUI 的其他代码库是否也使用 Nimbus 外观和感觉？在该类中创建任何 GUI 组件之前是否也设置了外观？这是我对你的问题的猜测。
关于java - 调用时 GUI 无法正确显示，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/14698532/