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java编写邮箱注册代码 java邮箱注册功能

如何用Java编写用户注册界面?

界面建议用可视化来做,美观且便捷。下面这个是完全用代码写的,仅供参考。

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import javax.swing.*;

import java.awt.event.*;

import java.awt.*;

import java.sql.*;

public class Register extends JFrame {

JLabel jl1 = new JLabel("用户名");

JTextField jt1 = new JTextField();

JLabel jl2 = new JLabel("邮箱");

JTextField jt2 = new JTextField();

JLabel jl3 = new JLabel("密码");

JPasswordField jpw1 = new JPasswordField();

JLabel jl4 = new JLabel("密码确认");

JPasswordField jpw2 = new JPasswordField();

JButton register = new JButton("注册");

JButton clean = new JButton("清空");

public Register(){

setLayout(new GridLayout(5,2));

add(jl1);

add(jt1);

add(jl2);

add(jt2);

add(jl3);

add(jpw1);

add(jl4);

add(jpw2);

add(register);

add(clean);

String name = jt1.getText();

String email = jt2.getText();

String pw = jpw1.getText();

register.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent e){

try{

Class.forName("com.mysql.jdbc.Driver");

Connection con = DriverManager.getConnection("jdbc:mysql://localhost/db","root","");

Statement sta = con.createStatement();

sta.executeUpdate("INSERT INTO register VALUES(name,email,pw)");

JOptionPane.showMessageDialog(null,"注册成功","提示",JOptionPane.INFORMATION_MESSAGE);

}

catch(Exception ex){

ex.getStackTrace();

}

}

});

clean.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent e){

jt1.setText("");

jt2.setText("");

jpw1.setText("");

jpw2.setText("");

}

});

}

public static void main(String[] args){

Register frame = new Register();

frame.setTitle("用户注册");

frame.setLocationRelativeTo(null);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.setSize(400,400);

frame.setVisible(true);

}

}

实现用java邮箱注册功能。请给出简单案例代码。

用户注册后先把注册信息放入数据库,状态为未注册 1.发送邮件(邮件内容为网页格式) 2.邮件内容里加确认注册的链接(链接里有指定参数),点击链接跳转到确认注册画面 3.跳转到确认注册画面后把用户状态变为已注册 要代码 发你邮箱地址 给你发邮件的代码,其他的要具体情况具体分析

求解:用Java写一段程序,能实现注册用户的,包含用户名和密码,邮箱的GUI程序。

import java.awt.*;

import java.awt.event.*;

import java.io.*;

import javax.swing.*;

public class TestLogin implements ActionListener {

JTextField jtf1 = new JTextField(15);

JPasswordField jtf2 = new JPasswordField(15);

JTextField jtf3 = new JTextField(15);

JLabel jl0 = new JLabel("欢迎注册!");

String result = "";

@Override

public void actionPerformed(ActionEvent e) {

String comn = e.getActionCommand();

if ("提交".equals(comn)) {

FileInputStream fis;

try {

fis = new FileInputStream("D:\\Program File\\image\\input.txt");

byte[] b = new byte[1024];

while (true) {

int num = fis.read(b);

if (num == -1)

break;

result = result + new String(b, 0, num);

}

fis.close();

} catch (FileNotFoundException e1) {

e1.printStackTrace();

} catch (IOException ioe) {

ioe.printStackTrace();

}

String[] s = result.split(";", 0);

String name = jtf1.getText();

String password = jtf2.getText();

String email = jtf3.getText();

String temp = name + "," + password + "," + email + ";";

boolean flag = true;

for (int i = 0; i s.length; i++) {

String[] name0 = s[i].split(",", 0);

if (name.equals(name0[0])) {

jl0.setText("你输入的用户名重复啦!请重新输入");

flag = false;

jtf1.setText("");

jtf2.setText("");

jtf3.setText("");

jtf1.requestFocus();

break;

}

}

if (flag) {

try {

FileOutputStream fos = new FileOutputStream(

"D:\\Program File\\image\\input.txt", true);

fos.write(temp.getBytes());

fos.close();

jl0.setText("恭喜你!注册成功!");

jtf1.setText("");

jtf2.setText("");

jtf3.setText("");

jtf1.requestFocus();

} catch (Exception ae) {

ae.printStackTrace();

}

}

} else if ("清空".equals(comn)) {

jtf1.setText("");

jtf2.setText("");

jtf3.setText("");

jtf1.requestFocus();

}

}

public TestLogin() {

JFrame jf = new JFrame("登录界面");

GridLayout gl = new GridLayout(5, 1);

jf.setLayout(gl);

JPanel[] jp = new JPanel[5];

for (int i = 0; i jp.length; i++) {

jp[i] = new JPanel();

jf.add(jp[i]);

}

jp[0].add(jl0);

JLabel jl1 = new JLabel("用户名:");

jp[1].add(jl1);

jp[1].add(jtf1);

JLabel jl2 = new JLabel(" 密码: ");

jp[2].add(jl2);

jp[2].add(jtf2);

JLabel jl3 = new JLabel(" Email:");

jp[3].add(jl3);

jp[3].add(jtf3);

JButton jb1 = new JButton("提交");

jp[4].add(jb1);

jb1.addActionListener(this);

JButton jb2 = new JButton("清空");

jp[4].add(jb2);

jb2.addActionListener(this);

jf.setLocation(300, 200);

jf.pack();

jf.setVisible(true);

jf.setDefaultCloseOperation(jf.EXIT_ON_CLOSE);

}

public static void main(String[] args) {

new TestLogin();

}

}

这个应该就是你想要的答案!


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