edituser.java

自己写的具有图形界面的SMTP和POP3邮件服务器端程序,实现邮件发送和收取,新建用户功能,用最基本的语句描述了邮件服务器端与客户端之间的通信过程

package cstest;


import java.io.ObjectOutputStream;
import java.io.FileOutputStream;
import javax.swing.*;
import java.awt.event.*;
import javax.swing.JLabel;
import java.awt.*;

public class EditUser extends JPanel{

      private Frame f=new Frame();


      private javax.swing.JLabel jLabel1 = null;

      private javax.swing.JLabel jLabel2 = null;

      private javax.swing.JLabel jLabel3 = null;

      private javax.swing.JButton jButton  = null;
      //确认
      private javax.swing.JButton jButton1 = null;	//取消

      private javax.swing.JList jList=null;

      private javax.swing.JScrollPane jScrollPane=null;
      //输入用户名称
      private javax.swing.JTextField textCfigName = null;
      //输入用户帐户
      private javax.swing.JTextField textCfigAccount = null;
      //输入用户密码
      private javax.swing.JTextField textCfigPsw = null;
      JLabel ChooseUser = new JLabel();
      JButton jButton3 = new javax.swing.JButton();

      public EditUser() {
               super();

               initialize();	//初始化函数
       }

       /*初始化函数*/
       private void initialize() {
            jButton3 = new javax.swing.JButton();
            jButton3.setBounds(new Rectangle(133, 180, 87, 32));
            jButton3.setText("Delete");
            jButton3.addActionListener(new java.awt.event.ActionListener() {
                        //保存用户配置
                        public void actionPerformed(java.awt.event.ActionEvent
                                e) {
                              if (textCfigName.getText().equals("")) {
                                    setVisible(false);
                                    JOptionPane.showMessageDialog(
                                            null,
                                            "Username is empty, Add new user failed!");
                              }
                              else
                              {
                                    if(textCfigAccount.getText().equals(""))
                                    {
                                          setVisible(false);
                                   JOptionPane.showMessageDialog(
                                           null,
                                           "Account is empty, Add new user failed!");
                                    }
                                    else {
                                          if (textCfigPsw.getText().equals("")) {
                                                setVisible(false);
                                                JOptionPane.showMessageDialog(
                                                        null,
                                                        "Password is empty, Add new user failed!");
                                          }
                                          else {
                                                Node n = new Node();
                                                n.setAccount(textCfigAccount.
                                                        getText());
                                                n.setUserName(textCfigName.
                                                        getText());
                                                n.setPassword(textCfigPsw.
                                                        getText());
                                                ServerTable.uil.add(n);
                                                try {

                                                      ObjectOutputStream out =
                                                              new
                                                              ObjectOutputStream(new
                                                              FileOutputStream(
                                                              "User.us"));
                                                      //保存设置
                                                      out.writeObject(
                                                              ServerTable.uil);
                                                      //关闭配置文件输出流
                                                      out.close();
                                                }
                                                catch (Exception ex) {
                                                      ex.printStackTrace();
                                                }
                                                setVisible(false);
                                                //显示信息
                                                JOptionPane.showMessageDialog(
                                                        null,
                                                        " Add new user successfully");

                                          }
                                    }

                              }
        jButton3_actionPerformed(e);
                        }
                  });
               this.setLayout(null);
               ChooseUser.setText("ChooseUser");
            ChooseUser.setBounds(new Rectangle(21, 20, 74, 25));
               this.setSize(356, 340);		//设置窗口尺寸
               f.setTitle("Add User");          //设置窗口名称
            this.add(getJLabel1(), null);
            this.add(getTextCfigName(), null);
            this.add(getTextCfigAccount(), null);
            this.add(getJButton(), null);
            this.add(getJButton1(), null);
            this.add(jButton3, null);
            this.add(getJLabel2(), null);
    this.add(getTextCfigPsw(), null);
    this.add(getJLabel3(), null);
    this.add(getJScrollPane(), null);
    this.add(ChooseUser, null);
    f.add(this, BorderLayout.CENTER);
               f.setSize(356,280);

               Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
               Dimension frameSize = f.getSize();
               if (frameSize.height > screenSize.height) {
                     frameSize.height = screenSize.height;
               }
               if (frameSize.width > screenSize.width) {
                     frameSize.width = screenSize.width;
               }
               f.setLocation(
                       (screenSize.width - frameSize.width) / 2,
                       (screenSize.height - frameSize.height) / 2);

               f.setVisible(true);


       }


  /*    private javax.swing.JLabel getJLabel() {
            if (jLabel == null) {
                  jLabel = new javax.swing.JLabel();
              jLabel.setText("");
            }
            return jLabel;
      }
*/
      private javax.swing.JLabel getJLabel1() {
            if (jLabel1 == null) {
                  jLabel1 = new javax.swing.JLabel();
                  jLabel1.setBounds(new Rectangle(114, 23, 63, 25));
                  jLabel1.setText("Name");
                  jLabel1.setHorizontalAlignment(javax.swing.SwingConstants.
                                                 CENTER);
                  jLabel1.setName("labelName");
            }
            return jLabel1;
      }

      /*提示信息标签*/
      private javax.swing.JLabel getJLabel2() {
              if (jLabel2 == null) {
                      jLabel2 = new javax.swing.JLabel();
                      jLabel2.setBounds(new Rectangle(110, 65, 63, 25));
                      jLabel2.setText("Account");
                      jLabel2.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
                      jLabel2.setName("labelAccount");
              }
              return jLabel2;
      }

      /*提示信息标签*/
      private javax.swing.JLabel getJLabel3() {