changepassword.java

一个商品的进存销信息管理系统

//package jxc;

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.DriverManager;
import java.sql.Connection;
import java.sql.Statement;
import java.io.BufferedReader;
import java.io.FileReader;

public class changepassword
    extends JDialog {
  JButton jButton2 = new JButton();
  JButton jButton3 = new JButton();
  JLabel jLabel1 = new JLabel();
  JLabel jLabel2 = new JLabel();
  JLabel jLabel3 = new JLabel();
  JTextField jTextField1 = new JTextField();
  static JPasswordField jPasswordField1 = new JPasswordField();
  static JPasswordField jPasswordField2 = new JPasswordField();
  static String user;
  String password;
  int i;
  String config[] = {
      "", "", "", "", "", ""};
  Connection conn;
  Statement stmt;

  public changepassword(String currentuser) {
    user = currentuser;
    try {
      jbInit();
    }
    catch (Exception e) {
      e.printStackTrace();
    }
  }

  private void jbInit() throws Exception {
    setModal(true);
    this.setResizable(false);
    this.setSize(new Dimension(300, 220));
    this.setTitle("更改密码");
    this.getContentPane().setLayout(null);
    jButton2.setBounds(new Rectangle(55, 129, 77, 27));
    jButton2.setText("确 定");
    jButton2.addActionListener(new changepassword_jButton2_actionAdapter(this));
    jButton3.setBounds(new Rectangle(165, 129, 77, 27));
    jButton3.setText("取 消");
    jButton3.addActionListener(new changepassword_jButton3_actionAdapter(this));
    jLabel1.setText("用户名");
    jLabel1.setBounds(new Rectangle(35, 25, 50, 22));
    jLabel2.setText("旧密码");
    jLabel2.setBounds(new Rectangle(35, 57, 50, 22));
    jLabel3.setText("新密码");
    jLabel3.setBounds(new Rectangle(35, 88, 50, 22));
    jTextField1.setEnabled(true);
    jTextField1.setEditable(false);
    jTextField1.setText(user);
    jTextField1.addActionListener(new changepassword_jButton2_actionAdapter(this));
    jTextField1.setBounds(new Rectangle(118, 25, 150, 22));
    jPasswordField1.setText("");
    jPasswordField1.addActionListener(new changepassword_jButton2_actionAdapter(this));
    jPasswordField1.setBounds(new Rectangle(118, 57, 150, 22));
    jPasswordField2.setText("");
    jPasswordField2.addActionListener(new changepassword_jButton2_actionAdapter(this));
    jPasswordField2.setBounds(new Rectangle(118, 88, 150, 22));
    this.getContentPane().add(jLabel1, null);
    this.getContentPane().add(jLabel2, null);
    this.getContentPane().add(jLabel3, null);
    this.getContentPane().add(jTextField1, null);
    this.getContentPane().add(jPasswordField1, null);
    this.getContentPane().add(jPasswordField2, null);
    this.getContentPane().add(jButton3, null);
    this.getContentPane().add(jButton2, null);
    //读取SQL用户表,以验证用户密码
    //读取配置文件
    BufferedReader br = new BufferedReader(new FileReader("config.dll"));
    while (br.ready()) {
      config[i] = br.readLine().toString();
      System.out.print("第" + i + "等于" + config[i]);
      i++;
    }

  }

  private static boolean isPasswordCorrect(char[] input) {
    char[] correctPassword;
    correctPassword = jPasswordField2.getPassword(); //将数据库读取的密码放这里
    if (input.length != correctPassword.length) {
      return false;
    }
    for (int i = 0; i < input.length; i++) {
      if (input[i] != correctPassword[i]) {
        return false;
      }
    }
    return true;
  }

  void jButton3_actionPerformed(ActionEvent e) {
    //退出
    hide();
  }

  void jButton2_actionPerformed(ActionEvent e) {
    //两个密码都不一样
    if (!isPasswordCorrect(jPasswordField1.getPassword())) {
      JOptionPane.showMessageDialog(null, "你输入的两次密码不相同!请从新设置密码!");
      jPasswordField1.setText("");
      jPasswordField2.setText("");
      return;
    }
    //密码长度小于6
    if (jPasswordField1.getPassword().length < 6) {
      JOptionPane.showMessageDialog(null, "你输入的密码小于6位");
      jPasswordField1.setText("");
      jPasswordField2.setText("");
      return;
    }

    //更改密码
    try {
      //JDBC驱动
      try {
        Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
      }
      catch (ClassNotFoundException ex) {
      }
      //地址
      conn = DriverManager.getConnection(
          "jdbc:microsoft:sqlserver://"
          + config[0] + ":"
          + config[1] + ";User="
          + config[2] + ";Password="
          + config[3] + ";DatabaseName="
          + config[4]);
      stmt = conn.createStatement();
      stmt.execute("update 用户 set 密码='" +
                   new String(jPasswordField1.getPassword()) +
                   "' where 用户名='" + user + "'");
      stmt.close();
      conn.close();
    }
    catch (SQLException ex1) {
      System.out.print(ex1);
    }
    //退出
    hide();
  }
}

class changepassword_jButton3_actionAdapter
    implements java.awt.event.ActionListener {
  changepassword adaptee;

  changepassword_jButton3_actionAdapter(changepassword adaptee) {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent e) {
    adaptee.jButton3_actionPerformed(e);
  }
}

class changepassword_jButton2_actionAdapter
    implements java.awt.event.ActionListener {
  changepassword adaptee;

  changepassword_jButton2_actionAdapter(changepassword adaptee) {
    this.adaptee = adaptee;
  }

  public void actionPerformed(ActionEvent e) {
    adaptee.jButton2_actionPerformed(e);
  }
}