用Java編寫注冊登錄程序

什么都不說了 直接給你代碼吧

作為一家“創(chuàng)意+整合+營銷”的成都網(wǎng)站建設(shè)機構(gòu)，我們在業(yè)內(nèi)良好的客戶口碑。創(chuàng)新互聯(lián)提供從前期的網(wǎng)站品牌分析策劃、網(wǎng)站設(shè)計、成都網(wǎng)站建設(shè)、成都網(wǎng)站設(shè)計、創(chuàng)意表現(xiàn)、網(wǎng)頁制作、系統(tǒng)開發(fā)以及后續(xù)網(wǎng)站營銷運營等一系列服務(wù)，幫助企業(yè)打造創(chuàng)新的互聯(lián)網(wǎng)品牌經(jīng)營模式與有效的網(wǎng)絡(luò)營銷方法,創(chuàng)造更大的價值。

package com.moliying.ui;

import java.awt.BorderLayout;

import java.awt.Container;

import java.awt.FlowLayout;

import java.awt.List;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.io.BufferedWriter;

import java.io.FileOutputStream;

import java.io.OutputStreamWriter;

import java.util.ArrayList;

import java.util.Arrays;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JPasswordField;

import javax.swing.JTextField;

public class Login {

private JFrame frame = new JFrame("登錄");

private Container c = frame.getContentPane();

private JTextField username = new JTextField();

private JPasswordField password = new JPasswordField();

private JButton ok = new JButton("確定");

private JButton cancel = new JButton("取消");

public Login() {

frame.setSize(300, 200);

frame.setBounds(450, 300, 300, 200);

c.setLayout(new BorderLayout());

initFrame();

frame.setVisible(true);

}

private void initFrame() {

// 頂部

JPanel titlePanel = new JPanel();

titlePanel.setLayout(new FlowLayout());

titlePanel.add(new JLabel("系統(tǒng)管理員登錄"));

c.add(titlePanel, "North");

// 中部表單

JPanel fieldPanel = new JPanel();

fieldPanel.setLayout(null);

JLabel a1 = new JLabel("用戶名:");

a1.setBounds(50, 20, 50, 20);

JLabel a2 = new JLabel("密 碼:");

a2.setBounds(50, 60, 50, 20);

fieldPanel.add(a1);

fieldPanel.add(a2);

username.setBounds(110, 20, 120, 20);

password.setBounds(110, 60, 120, 20);

fieldPanel.add(username);

fieldPanel.add(password);

c.add(fieldPanel, "Center");

// 底部按鈕

JPanel buttonPanel = new JPanel();

buttonPanel.setLayout(new FlowLayout());

buttonPanel.add(ok);

buttonPanel.add(cancel);

c.add(buttonPanel, "South");

ok.addActionListener(new ActionListener() {

@Override

public void actionPerformed(ActionEvent e) {

System.out.println(username.getText().toString());

}

});

cancel.addActionListener(new ActionListener() {

@Override

public void actionPerformed(ActionEvent e) {

frame.setVisible(false);

}

});

}

public static void main(String[] args) {

// new Login();

String ss = "abbabbbaabbbccba";

System.out.println(ss.split("b").length);

}

}

java編寫一個用戶注冊及登錄界面

mport?java.awt.HeadlessException;

import?java.awt.event.ActionEvent;

import?java.awt.event.ActionListener;

import?javax.swing.ImageIcon;

import?javax.swing.JButton;

import?javax.swing.JFrame;

import?javax.swing.JLabel;

import?javax.swing.JOptionPane;

import?javax.swing.JPanel;

import?javax.swing.JPasswordField;

import?javax.swing.JTextField;

@SuppressWarnings("serial")

public?class?MainFrame?extends?JFrame?{

JLabel?lbl1?=?new?JLabel("用戶名:");

JLabel?lbl2?=?new?JLabel("密?????碼:");

JTextField?txt?=?new?JTextField("admin",20);

JPasswordField?pwd?=?new?JPasswordField(20);

JButton?btn?=?new?JButton("登錄");

JPanel?pnl?=?new?JPanel();

private?int?error?=?0;

public?MainFrame(String?title)?throws?HeadlessException?{

super(title);

init();

}

private?void?init()?{

this.setResizable(false);

pwd.setEchoChar('*');

pnl.add(lbl1);

pnl.add(txt);

pnl.add(lbl2);

pnl.add(pwd);

pnl.add(btn);

this.getContentPane().add(pnl);

btn.addActionListener(new?ActionListener()?{

@Override

public?void?actionPerformed(ActionEvent?e)?{

if?("admin".equals(new?String(pwd.getPassword()))){

pnl.removeAll();

JLabel?lbl3?=?new?JLabel();

ImageIcon?icon?=?new?ImageIcon(this.getClass().getResource("pic.jpg"));

lbl3.setIcon(icon);

pnl.add(lbl3);

}

else{

if(error??3){

JOptionPane.showMessageDialog(null,"密碼輸入錯誤，請再試一次");

error++;

}

else{

JOptionPane.showMessageDialog(null,"對不起，您不是合法用戶");

txt.setEnabled(false);

pwd.setEnabled(false);

btn.setEnabled(false);

}

}

}

});

}

public?static?void?main(String[]?args)?{

MainFrame?frm?=?new?MainFrame("測試");

frm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frm.setBounds(100,?100,?300,?120);

frm.setVisible(true);

}

}

用JAVA編寫一個用戶或注冊登錄界面。請哪位高手能夠?qū)懴戮唧w的代碼，謝謝

效果圖

代碼

!DOCTYPE?html

html

head

meta?charset="UTF-8"

title先鋒圖書館管理系統(tǒng)-登錄/title

style

*{

margin:?0;

padding:?0;

list-style:?none;

}

#top{

width:?1000px;

height:?95px;

margin:?0?auto;

margin-top:?25px;

}

#top_top{

width:?1000px;

height:?65px;

background:?deepskyblue;

}

#top_top_left{

width:?300px;

height:?65px;

float:?left;

}

#top_top_leftlabel{

width:?200px;

height:?65px;

color:?white;

float:?right;

}

#top_top_left#a2{

padding-left:?10px;

padding-top:?20px;

font-size:?16px;

}

#top_bottom{

width:?1000px;

height:?30px;

}

#top_bottom_left{

width:?340px;

height:?30px;

line-height:?30px;

font-size:?12px;

background:?skyblue;

color:?white;

text-indent:?2em;

float:?left;

}

#top_bottom_right{

width:?660px;

height:?30px;

line-height:?30px;

font-size:?12px;

color:?blueviolet;

text-align:?center;

float:?right;

background:?lightskyblue;

}

#content{

width:?1000px;

height:?600px;

margin:?0?auto;

background:#587FBA;

}

#content#text{

width:?1000px;

height:?50px;

line-height:?50px;

padding-top:?100px;

font-size:?36px;

font-family:"楷體";

font-weight:?bold;

text-align:?center;

}

#content#login{

width:?480px;

height:?210px;

margin-top:?20px;

margin-left:?260px;

background:?#85A0CB;

}

#content#loginimg{

float:?left;

}

#content#login#select{

width:?305px;

height:?210px;

float:?right;

}

#content#login#selectdiv{

width:?230;

height:?30px;

margin-left:?30px;

}

#content#login#select#d1{

margin-top:30px;

margin-bottom:?3px;

}

#content#login#selectp{

font-size:?14px;

margin-left:?95px;

}

#bottom{

width:?1000px;

height:?35px;

line-height:?35px;

margin:?0?auto;

background:?deepskyblue;

text-align:?center;

color:?white;

}

/style

/head

body

div?id="top"

div?id="top_top"

div?id="top_top_left"

img?src="img/test/a13.png"?width="78px"?height="65px"label?id="a2"先鋒圖書館系統(tǒng)管理平臺/label

/div

/div

div?id="top_bottom"

div?id="top_bottom_left"當前位置?:?首頁??系統(tǒng)管理??登錄/div

div?id="top_bottom_right"當前時間?:?label?id="lable"/label/div

/div

/div

div?id="content"

div?id="text"歡迎登錄先鋒圖書館管理系統(tǒng)/div

div?id="login"

img?src="img/test/a14.png"??width="175px"?height="210px"/

form?id="select"

div?id="d1"用戶名:?nbsp;nbsp;input?type="text"?//div

div密????nbsp;?碼:?nbsp;nbsp;input?type="password"?//div

p

input?type="radio"?name="user"?value="read"/讀者nbsp;nbsp;nbsp;nbsp;

input?type="radio"?name="user"?value="admin"/管理員

/pbr/

p

input?type="button"?value="確定"?style="width:?50px;"?onclick="put()"/nbsp;nbsp;nbsp;nbsp;

input?type="reset"?value="重置"?style="width:?50px;"/

/p

/form

/div

/div

div?id="bottom"欣欣科技有限公司版權(quán)所有/div

/body

script?type="text/javascript"?src="JQuery/jquery.js"/script

script?type="text/javascript"?src="js/GetCurrentTime.js"/script

script

//驗證用戶名和密碼

function?put(){

var?d?=?$("#selectdivinput");//獲取用戶名和密碼

var?name?=?d[0].value;

var?pass?=?d[1].value;

var?user?=?null;

var?r?=?document.getElementsByName("user");//獲取用戶類型

for(i=0;ir.length;i++){

if(r[i].checked){

user=r[i].value;

}

}

//console.log(name?+?","?+pass?+?","?+user);//輸出測試

if(user==null){

window.alert("請選擇用戶類型!");

}else?if(user=="admin"??name!="admin"){

window.alter("用戶名錯誤!");

}else?if(user=="admin"??name=="admin"??pass!="123456"){

window.alert("密碼錯誤!");

}else?if(name=="admin"??pass=="123456"??user=="admin"){

window.location.href="work_02_welcome.html";//在js中在本頁面中打開新鏈接

}else{

window.alert("用戶名錯誤");

}

}

/script

/html

用java編程實現(xiàn)用戶注冊并進行登錄操作

String username = "",password = "",passwordagain = ""; // 定義用戶名和密碼

將該變量等于為全局變量 或局部變量即可

java編寫一個登陸和注冊信息的源代碼,最簡單的就可以,不需要數(shù)據(jù)庫的那種

你這個不用數(shù)據(jù)庫真的是有點難搞

我寫了個用集合存儲的，你看看，能否幫上你

java.util.ListString?list?=?new?ArrayListString();

list.add("qq=123");//存儲的時候用（用戶名=密碼）的形式

list.add("ww=456");

String?username?=?"qq";

String?password?=?"123";

for?(int?i?=?0;?i??list.size();?i++)?{

String?num?=?username?+"="+password;

if(num.equals(list.get(i))){

System.out.println("登錄成功");

break;

}

}

java語言實現(xiàn)用戶注冊和登錄

//這個是我寫的，里面有連接數(shù)據(jù)庫的部分。你可以拿去參考一下

import java.awt.*;

import javax.swing.*;

import java.awt.event.*;

import java.sql.*;

class LoginFrm extends JFrame implements ActionListener// throws Exception

{

JLabel lbl1 = new JLabel("用戶名:");

JLabel lbl2 = new JLabel("密碼:");

JTextField txt = new JTextField(5);

JPasswordField pf = new JPasswordField();

JButton btn1 = new JButton("確定");

JButton btn2 = new JButton("取消");

public LoginFrm() {

this.setTitle("登陸");

JPanel jp = (JPanel) this.getContentPane();

jp.setLayout(new GridLayout(3, 2, 5, 5));

jp.add(lbl1);

jp.add(txt);

jp.add(lbl2);

jp.add(pf);

jp.add(btn1);

jp.add(btn2);

btn1.addActionListener(this);

btn2.addActionListener(this);

}

public void actionPerformed(ActionEvent ae) {

if (ae.getSource() == btn1) {

try {

Class.forName("com.mysql.jdbc.Driver");// mysql數(shù)據(jù)庫

Connection con = DriverManager.getConnection(

"jdbc:mysql://localhost/Car_zl", "root", "1");// 數(shù)據(jù)庫名為Car_zl，密碼為1

System.out.println("com : "+ con);

Statement cmd = con.createStatement();

String sql = "select * from user where User_ID='"

+ txt.getText() + "' and User_ps='"

+ pf.getText() + "'" ;

ResultSet rs = cmd

.executeQuery(sql);// 表名為user，user_ID和User_ps是存放用戶名和密碼的字段名

if (rs.next()) {

JOptionPane.showMessageDialog(null, "登陸成功！");

} else

JOptionPane.showMessageDialog(null, "用戶名或密碼錯誤！");

} catch (Exception ex) {

}

if (ae.getSource() == btn2) {

System.out.println("1111111111111");

//txt.setText("");

//pf.setText("");

System.exit(0);

}

}

}

public static void main(String arg[]) {

JFrame.setDefaultLookAndFeelDecorated(true);

LoginFrm frm = new LoginFrm();

frm.setSize(400, 200);

frm.setVisible(true);

}

}