passwordmodify.java

综合测评管理系统——完成班级的综合测评工作

import java.sql.*;
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.border.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;

public class PasswordModify extends JFrame{
	
	
	public PasswordModify(String current_username0){
		super("修改密码");
		final String current_username=current_username0;
		GridBagLayout lay=new GridBagLayout();
	  setLayout(lay);
	  Toolkit kit=Toolkit.getDefaultToolkit();
	  Dimension screenSize=kit.getScreenSize();
	  int width=screenSize.width;
	  int height=screenSize.height;
	  
	  JButton ok_button=new JButton("确定");
	  JButton cancel_button=new JButton("取消");
	  
	  JLabel current_user_label=new JLabel("用户名: ");
	  JLabel current_username_label=new JLabel(current_username);
	  JLabel new_password_label=new JLabel("新密码: ");
	  final TextField new_password_textfield=new TextField();
	  new_password_textfield.setEchoChar('*');
	  JLabel password_affirm_label=new JLabel("密码确认: ");
	  final TextField password_affirm_textfield=new TextField();
	  password_affirm_textfield.setEchoChar('*');
	  //布局管理器
	  GridBagConstraints constraints=new GridBagConstraints();
	  constraints.anchor=GridBagConstraints.CENTER;
	    
	  constraints.gridx=0;
	  constraints.gridy=0;
	  constraints.gridwidth=1;
	  constraints.gridheight=1;
	  constraints.fill=GridBagConstraints.NONE;
	  add(current_user_label,constraints);
	   
	  constraints.gridx=1;
	  constraints.gridy=0;
	  constraints.gridwidth=1;
	  constraints.gridheight=1;
	  add(current_username_label,constraints);
	   
	  constraints.gridx=0;
	  constraints.gridy=1;
	  constraints.gridwidth=1;
	  constraints.gridheight=1;
	  add(new_password_label,constraints);
	   
	  constraints.gridx=1;
	  constraints.gridy=1;
	  constraints.gridwidth=1;
	  constraints.gridheight=1;
	  constraints.fill=GridBagConstraints.BOTH;
	  add(new_password_textfield,constraints);
	    
	  constraints.gridx=0;
	  constraints.gridy=2;
	  constraints.gridwidth=1;
	  constraints.gridheight=1;
	  constraints.fill=GridBagConstraints.NONE;
	  add(password_affirm_label,constraints);
	  
	  constraints.gridx=1;
	  constraints.gridy=2;
	  constraints.gridwidth=1;
	  constraints.gridheight=1;
	  constraints.fill=GridBagConstraints.BOTH;
	  add(password_affirm_textfield,constraints);
	      
	  constraints.gridx=0;
	  constraints.gridy=3;
	  constraints.gridwidth=1;
	  constraints.gridheight=1;
	  constraints.fill=GridBagConstraints.NONE;
	  add(ok_button,constraints);
	      
	  constraints.gridx=1;
	  constraints.gridy=3;
	  constraints.gridwidth=1;
	  constraints.gridheight=1;
	  constraints.fill=GridBagConstraints.NONE;
	  add(cancel_button,constraints);
	      
	  //按钮单击事件处理
	  ok_button.addActionListener(new ActionListener(){
	    public void actionPerformed(ActionEvent e){
	      //需要先判断两次输入是否一致
	      if((new_password_textfield.getText()).equals(password_affirm_textfield.getText())){
	        CheckUser cUser=new CheckUser();
	        cUser.updatePassword(current_username,new_password_textfield.getText());
	        dispose();
	      }else{
	      	JOptionPane.showMessageDialog(new JFrame(),"密码不一致","警告",JOptionPane.WARNING_MESSAGE);
	      }
	    }
	  });
	      
	  cancel_button.addActionListener(new ActionListener(){
	   	public void actionPerformed(ActionEvent e){
	   		dispose();
	   	}
	  });
	      
	  setSize(260,140);
	  setLocation(400,400);
	  setResizable(false);
	  setVisible(true);
	}
}