这是 autowired class ：
@Component
public class AlfrescoLoginFrame extends javax.swing.JFrame {
private static final long serialVersionUID = 6302651813469103752L;
@Autowired
private MainController controller;
public AlfrescoLoginFrame() {
initComponents();
initActions();
}
private void initComponents() {
try {
UIManager.setLookAndFeel("com.jgoodies.looks.windows.WindowsLookAndFeel");
//UIManager.setLookAndFeel ( "com.alee.laf.WebLookAndFeel" );
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (InstantiationException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (UnsupportedLookAndFeelException e) {
e.printStackTrace();
}
lbl_user_name = new javax.swing.JLabel();
lbl_password = new javax.swing.JLabel();
txt_user_name = new javax.swing.JTextField();
txt_password = new javax.swing.JTextField();
bt_connexion = new javax.swing.JButton();
bt_annuler = new javax.swing.JButton();
lbl_alfreco_logo = new javax.swing.JLabel();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setTitle("Se connecter");
lbl_user_name.setText("Nom d'utilisateur");
lbl_password.setText("Mot de passe");
bt_connexion.setIcon(new ImageIcon(LOGIN_ICON));
bt_connexion.setText("Connexion");
bt_annuler.setIcon(new ImageIcon(LOGOUT_ICON));
bt_annuler.setText("Annuler");
initActions();
lbl_alfreco_logo.setIcon(new ImageIcon(ALFRESCO_LOGO));
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(79, 79, 79)
.addComponent(bt_connexion)
.addGap(18, 18, 18)
.addComponent(bt_annuler, javax.swing.GroupLayout.PREFERRED_SIZE, 105, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addGap(89, 89, 89)
.addComponent(lbl_alfreco_logo))
.addGroup(layout.createSequentialGroup()
.addGap(47, 47, 47)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(lbl_password, javax.swing.GroupLayout.PREFERRED_SIZE, 79, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(lbl_user_name))
.addGap(32, 32, 32)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(txt_user_name, javax.swing.GroupLayout.PREFERRED_SIZE, 107, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(txt_password, javax.swing.GroupLayout.PREFERRED_SIZE, 107, javax.swing.GroupLayout.PREFERRED_SIZE))))
.addContainerGap(91, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(28, 28, 28)
.addComponent(lbl_alfreco_logo, javax.swing.GroupLayout.PREFERRED_SIZE, 57, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 53, Short.MAX_VALUE)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(lbl_user_name)
.addComponent(txt_user_name, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(23, 23, 23)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(lbl_password)
.addComponent(txt_password, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(49, 49, 49)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(bt_connexion)
.addComponent(bt_annuler))
.addGap(25, 25, 25))
);
pack();
}
public void initActions(){
bt_connexion.addActionListener(new LoginActionListener());
}
private class LoginActionListener implements ActionListener {
@Override
public void actionPerformed(ActionEvent e) {
//System.out.println("***"+e.getActionCommand());
// it displays the same event
controller.checkLoginCreditsRedirect(txt_user_name.getText(),txt_password.getText());
}
}
// Declaration des variables
private javax.swing.JButton bt_annuler;
private javax.swing.JButton bt_connexion;
private javax.swing.JLabel lbl_alfreco_logo;
private javax.swing.JLabel lbl_password;
private javax.swing.JLabel lbl_user_name;
private javax.swing.JTextField txt_password;
private javax.swing.JTextField txt_user_name;
public static final String LOGIN_ICON= System.getProperty("user.dir") + "/resource/com/talan/launcher/ui/icon/login_icon.png";
public static final String ALFRESCO_LOGO = System.getProperty("user.dir") + "/resource/com/talan/launcher/ui/icon/alfresco_logo.jpg";
public static final String LOGOUT_ICON = System.getProperty("user.dir") + "/resource/com/talan/launcher/ui/icon/logout_icon.png"; }
你可以看到监听器：
public void initActions(){
bt_connexion.addActionListener(new LoginActionListener());
}
private class LoginActionListener implements ActionListener {
@Override
public void actionPerformed(ActionEvent e) {
//System.out.println("***"+e.getActionCommand());
// it displays the same event
controller.checkLoginCreditsRedirect(txt_user_name.getText(),txt_password.getText());
}
}
这是 AlfrescoLoginFrame 中的类 MainController 是@Autowired：
@Component
public class MainController {
@Autowired
private ISessionRepo sessionRepo;
@Autowired
private WrongAlfrescoCreditsDialog wrongAlfrescoCredistDiag;
public MainController() {
}
public void checkLoginCreditsRedirect(String login, String password){
checkLoginCredits(login, password);
if(sessionRepo.isValid()){
//This sop executes twice
System.out.println("Logged in !");
}else{
//Also sop executes twice
System.out.println("Not logged in : wrond credit !");
wrongAlfrescoCredistDiag.riseWrongCreditsPanel(alfresco_loginFrame);
}
}
}
所以 checkLoginCreditsRedirect（String login，String password）方法被调用两次。 我认为这是一个 SPRING 问题，任何帮助都会受到赞赏吗？
答案 0 :(得分：1)
您拨打initActions();两次。一旦进入构造函数，第二次进入initComponents方法。
答案 1 :(得分：1)
你自己两次调用initActions（）。
从构造函数开始，一次initComponents方法
下次遇到这样的问题时：通过添加尝试调试
意外被调用两次的方法中的new Exception().printStackTrace();