java淘宝登录界面代码 java淘宝登录界面代码是什么

用java做好的登陆界面，当登陆成功后跳转到下个页面的代码是什么？

用java做好java淘宝登录界面代码的登陆界面java淘宝登录界面代码，当登陆成功后跳转到下个页面的代码如下：

如果登陆验证是在jsp中java淘宝登录界面代码，那么跳转可以写成

1.response.sendRedirct("跳转到页面");

2.jsp:forward page="跳转页面"/

3.response.setHeader("Location","");

如果是登陆验证是在servlet中，那么中转可以写成

1.response.sendRedirect("/a.jsp");

2.RequestDispatcher dispatcher = request.getRequestDispatcher("/a.jsp");

dispatcher .forward(request, response);

也可以使用js代码实现：

script

function validate(){

window.location.href="/index.jsp";

}

/script

相关问答

Q1: 登陆界面的java代码怎么写？

import java.awt.*;

import javax.swing.*;

import java.awt.event.*;

import java.sql.*;

class LoginFrm extends JFrame implements ActionListener

{

JLabel lbl1=new JLabel("用户名");

JLabel lbl2=new JLabel("密码");

JTextField txt=new JTextField(15);

JPasswordField pf=new JPasswordField();

JButton btn1=new JButton("确定");

JButton btn2=new JButton("取消");

public LoginFrm()

{

this.setTitle("登陆");

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

jp.setLayout(new GridLayout(3,2,10,10));

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("sun.jdbc.odbc.JdbcOdbcDriver")java淘宝登录界面代码；

Connection con=DriverManager.getConnection("jdbc:odbc:MyDB","","");

Statement cmd=con.createStatement();

ResultSet rs=cmd.executeQuery("select * from loginAndpassword where login='"+txt.getText()+"' and password='"+pf.getText()+"'");

if(rs.next())

{

JOptionPane.showMessageDialog(null,"登陆成功java淘宝登录界面代码！");

}

else

JOptionPane.showMessageDialog(null,"用户名或密码错误java淘宝登录界面代码！");

} catch(Exception ex){}

if(ae.getSource()==btn2)

{

txt.setText("");

pf.setText("");

}

}

}

public static void main(String arg[])

{

JFrame.setDefaultLookAndFeelDecorated(true);

LoginFrm frm=new LoginFrm();

frm.setSize(400,200);

frm.setVisible(true);

}

}

Q2: 用Java设计一个登录页面，不用连接数据库，只要把用户和密码信息存放在文本里面，怎样设计代码？？？

/* Main.java

*

* Created on __DATE__, __TIME__

*/

import javax.swing.JOptionPane;

/**

*

* @author __USER__

*/

public class Main extends javax.swing.JFrame {

/** Creates new form Main */

public Main() {

initComponents();

}

/** This method is called from within the constructor to

* initialize the form.

* WARNING: Do NOT modify this code. The content of this method is

* always regenerated by the Form Editor.

*/

//GEN-BEGIN:initComponents

// editor-fold defaultstate="collapsed" desc="Generated Code"

private void initComponents() {

jPanel1 = new javax.swing.JPanel(); //标签

jLabel1 = new javax.swing.JLabel();

jLabel2 = new javax.swing.JLabel();

jLabel3 = new javax.swing.JLabel();

jButton1 = new javax.swing.JButton(); //登录按钮

jButton2 = new javax.swing.JButton(); //

jTextField1 = new javax.swing.JTextField(); //文本框

jTextField2 = new javax.swing.JTextField();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); //关闭时的操作，即退出程序

setTitle("登录界面"); //设置标题：欢迎使用股票管理系统

setResizable(false); //设置窗口不可调节大小

jLabel1.setFont(new java.awt.Font("微软雅黑", 0, 18)); //设置标签的字体

jLabel1

.setText("您好，请输入信息");

jLabel2.setText("用户名");

jLabel3.setText("用户密码");

jButton1.setText("登录");

jButton1.addActionListener(new java.awt.event.ActionListener() { //采用匿名内部类来实现按钮监听功能

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton1ActionPerformed(evt);

}

});

jButton2.setText("退出");

jButton2.addActionListener(new java.awt.event.ActionListener() { //同上

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton2ActionPerformed(evt);

}

});

javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout( //层次布局管理器，下面n长的代码，就是设置位置，自己看吧，呵呵，这个必须的，就不多写了

jPanel1);

jPanel1.setLayout(jPanel1Layout);

jPanel1Layout

.setHorizontalGroup(jPanel1Layout

.createParallelGroup(

javax.swing.GroupLayout.Alignment.LEADING)

.addGroup(

javax.swing.GroupLayout.Alignment.TRAILING,

jPanel1Layout.createSequentialGroup()

.addContainerGap(159, Short.MAX_VALUE)

.addComponent(jLabel1).addGap(140, 140,

140))

.addGroup(

jPanel1Layout

.createSequentialGroup()

.addGap(110, 110, 110)

.addGroup(

jPanel1Layout

.createParallelGroup(

javax.swing.GroupLayout.Alignment.LEADING)

.addComponent(jLabel2)

.addComponent(jLabel3))

.addGap(54, 54, 54)

.addGroup(

jPanel1Layout

.createParallelGroup(

javax.swing.GroupLayout.Alignment.LEADING)

.addGroup(

jPanel1Layout

.createSequentialGroup()

.addComponent(

jTextField2,

javax.swing.GroupLayout.DEFAULT_SIZE,

191,

Short.MAX_VALUE)

.addGap(

112,

112,

112))

.addGroup(

jPanel1Layout

.createSequentialGroup()

.addComponent(

jTextField1,

javax.swing.GroupLayout.PREFERRED_SIZE,

191,

javax.swing.GroupLayout.PREFERRED_SIZE)

.addContainerGap())))

.addGroup(

jPanel1Layout

.createSequentialGroup()

.addGap(141, 141, 141)

.addComponent(

jButton1,

javax.swing.GroupLayout.PREFERRED_SIZE,

68,

javax.swing.GroupLayout.PREFERRED_SIZE)

.addGap(89, 89, 89)

.addComponent(

jButton2,

javax.swing.GroupLayout.PREFERRED_SIZE,

72,

javax.swing.GroupLayout.PREFERRED_SIZE)

.addContainerGap(145, Short.MAX_VALUE)));

jPanel1Layout

.setVerticalGroup(jPanel1Layout

.createParallelGroup(

javax.swing.GroupLayout.Alignment.LEADING)

.addGroup(

jPanel1Layout

.createSequentialGroup()

.addContainerGap()

.addComponent(jLabel1)

.addGap(55, 55, 55)

.addGroup(

jPanel1Layout

.createParallelGroup(

javax.swing.GroupLayout.Alignment.LEADING)

.addComponent(jLabel2)

.addComponent(

jTextField1,

javax.swing.GroupLayout.PREFERRED_SIZE,

javax.swing.GroupLayout.DEFAULT_SIZE,

javax.swing.GroupLayout.PREFERRED_SIZE))

.addGap(41, 41, 41)

.addGroup(

jPanel1Layout

.createParallelGroup(

javax.swing.GroupLayout.Alignment.BASELINE)

.addComponent(jLabel3)

.addComponent(

jTextField2,

javax.swing.GroupLayout.PREFERRED_SIZE,

javax.swing.GroupLayout.DEFAULT_SIZE,

javax.swing.GroupLayout.PREFERRED_SIZE))

.addGap(43, 43, 43)

.addGroup(

jPanel1Layout

.createParallelGroup(

javax.swing.GroupLayout.Alignment.BASELINE)

.addComponent(

jButton1,

javax.swing.GroupLayout.PREFERRED_SIZE,

33,

javax.swing.GroupLayout.PREFERRED_SIZE)

.addComponent(

jButton2,

javax.swing.GroupLayout.PREFERRED_SIZE,

33,

javax.swing.GroupLayout.PREFERRED_SIZE))

.addContainerGap(48, Short.MAX_VALUE)));

javax.swing.GroupLayout layout = new javax.swing.GroupLayout(

getContentPane());

getContentPane().setLayout(layout);

layout.setHorizontalGroup(layout.createParallelGroup(

javax.swing.GroupLayout.Alignment.LEADING).addGroup(

layout.createSequentialGroup().addContainerGap().addComponent(

jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE,

javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)

.addContainerGap()));

layout.setVerticalGroup(layout.createParallelGroup(

javax.swing.GroupLayout.Alignment.LEADING).addGroup(

layout.createSequentialGroup().addContainerGap().addComponent(

jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE,

javax.swing.GroupLayout.DEFAULT_SIZE,

javax.swing.GroupLayout.PREFERRED_SIZE)

.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE,

Short.MAX_VALUE)));

pack();

setLocationRelativeTo(null); //居中

}// /editor-fold

//GEN-END:initComponents

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { //事件处理，不建议这样做

// TODO add your handling code here:

String name = this.jTextField1.getText().trim(); //获得用户名，去空格

String password = this.jTextField2.getText().trim(); //获得密码，去空格

if (name.equals("admin") password.equals("123456")) { //如果符合条件.....其实这里应该去和数据库关联，这是死代码

// Showinformation sf=new Showinformation(); //我估计是另外一个框架，就是登录成功之后的框架

// sf.setVisible(true);

// sf.show(); //这个方法就直接秒杀，不用了，因为sf.setVisible(true)已经被调用了，这里就多次一举了

} else { //用户名或者密码验证失败

JOptionPane.showMessageDialog(this, "用户名或者密码错误啦~", "提示", //提示框

JOptionPane.INFORMATION_MESSAGE);

this.jTextField1.setText(""); //清空输入框

this.jTextField2.setText("");

}

}

private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) { //事件处理，其实可以将jButton1ActionPerformed放在一起处理，只要获得按钮的标签内容 （JButton）（evt.getSuorse()）.getText()就做对比就ko了

// TODO add your handling code here:

System.exit(0);

}

/**

* @param args the command line arguments

*/

public static void main(String args[]) {

java.awt.EventQueue.invokeLater(new Runnable() { //好方法，呵呵使用该方式的原因是：awt是单线程模式的，所有awt的组件只能在(推荐方式)事件处理线程中访问，从而保证组件状态的可确定性。java核心编程技术中每个实例基本都用到了

public void run() {

new Main().setVisible(true);

}

});

}

//GEN-BEGIN:variables

// Variables declaration - do not modify

private javax.swing.JButton jButton1;

private javax.swing.JButton jButton2;

private javax.swing.JLabel jLabel1;

private javax.swing.JLabel jLabel2;

private javax.swing.JLabel jLabel3;

private javax.swing.JPanel jPanel1;

private javax.swing.JTextField jTextField1;

private javax.swing.JTextField jTextField2;}

// End of variables declaration//GEN-END:variables

你修改一下吧，从记事本获得用户名判断一下就行了

Q3: 求Java编的登录界面代码：登录后分别进入管理员界面及用户界面，依据是数据库中的用户名和密码

分三个包，自己建个包，导进去就ok了，数据库是access的。

package 登录;

import java.awt.EventQueue;

public class Cilent {

private JFrame frame;

private JTextField textField;

private JPasswordField passwordField;

/**

* Launch the application.

*/

public static void main(String[] args) {

EventQueue.invokeLater(new Runnable() {

public void run() {

try {

Cilent window = new Cilent();

window.frame.setVisible(true);

} catch (Exception e) {

e.printStackTrace();

}

}

});

}

/**

* Create the application.

*/

public Cilent() {

initialize();

}

/**

* Initialize the contents of the frame.

*/

private void initialize() {

frame = new JFrame();

frame.setTitle("登陆界面");

frame.setBounds(100, 100, 450, 300);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.getContentPane().setLayout(null);

frame.setResizable(false);

JLabel lblNewLabel = new JLabel("用户名");

lblNewLabel.setBounds(38, 43, 80, 34);

frame.getContentPane().add(lblNewLabel);

textField = new JTextField();

textField.setBounds(155, 42, 227, 37);

frame.getContentPane().add(textField);

textField.setColumns(10);

JLabel label = new JLabel("密　码");

label.setBounds(38, 115, 80, 34);

frame.getContentPane().add(label);

passwordField = new JPasswordField();

passwordField.setBounds(155, 115, 227, 37);

frame.getContentPane().add(passwordField);

JButton btnNewButton = new JButton("登　录");

btnNewButton.setBounds(60, 187, 115, 34);

frame.getContentPane().add(btnNewButton);

btnNewButton.addActionListener(new ActionListener() {

@Override

public void actionPerformed(ActionEvent arg0) {

// TODO Auto-generated method stub

UserCheck UC=new UserCheck(textField.getText(),String.valueOf(passwordField.getPassword()));

if(UC.getI()!=0) //有此用户

{

frame.setVisible(false);

}

else

{

textField.setText("");

passwordField.setText("");

}

}

});

JButton button = new JButton("取　消");

button.setBounds(242, 187, 115, 34);

frame.getContentPane().add(button);

button.addActionListener(new ActionListener() {

@Override

public void actionPerformed(ActionEvent arg0) {

// TODO Auto-generated method stub

textField.setText("");

passwordField.setText("");

}

});

}

}

/*****************************************************************/

package 登录;

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.PreparedStatement;

import java.sql.ResultSet;

import java.sql.SQLException;

import java.sql.Statement;

import 操作处理.UsersCL;

/**@author 20111024

* 检测登录的用户在数据库中有无，若没有，则提示没有此用户，

* 若有，则判断级别：普通用户还是管理员。

*/

public class UserCheck {

private int i=0; //用户级别:0不是用户、1是管理员、2是普通用户

UserCheck(String name ,String password)

{

String jdriver="sun.jdbc.odbc.JdbcOdbcDriver";

String connectDB="jdbc:odbc:Students";

Statement stmt=null;

ResultSet rs=null;

Connection con=null;

try {

Class.forName(jdriver);

con=DriverManager.getConnection(connectDB);

stmt=con.createStatement();

String query="select * from users where name='"+name+"' and passwd='"+password+"'";

rs=stmt.executeQuery(query);

if(rs.next())

{

//数据库中有此用户，访问成功

i=Integer.parseInt(rs.getString(3));

UsersCL UL=new UsersCL(i);

}

else

{

i=0; //没有用户是默认是0级

}

} catch (ClassNotFoundException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (SQLException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

public int getI() {

return i;

}

}

/********************************************************************************************/

package 操作处理;

import java.awt.EventQueue;

public class UsersCL implements ActionListener{

private JFrame frame;

private JTextField textField;

private JTextField textField_1;

private JTextField textField_2;

private JTextField textField_3;

private int i=0;

private JLabel label_3;

private JTextField textField_4;

public UsersCL(int i) {

this.i=i;

frame = new JFrame();

frame.setTitle("用户处理界面");

frame.setBounds(100, 100, 450, 300);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.getContentPane().setLayout(null);

frame.setResizable(false);

frame.setVisible(true);

JLabel lblNewLabel = new JLabel("学　号");

lblNewLabel.setBounds(24, 32, 74, 29);

frame.getContentPane().add(lblNewLabel);

JLabel label = new JLabel("姓　名");

label.setBounds(24, 71, 74, 29);

frame.getContentPane().add(label);

JLabel label_1 = new JLabel("年　龄");

label_1.setBounds(24, 110, 74, 29);

frame.getContentPane().add(label_1);

label_3 = new JLabel("性　别");

label_3.setBounds(24, 149, 74, 29);

frame.getContentPane().add(label_3);

JLabel label_2 = new JLabel("状　态");

label_2.setBounds(24, 195, 74, 29);

frame.getContentPane().add(label_2);

textField = new JTextField();

textField.setBounds(101, 34, 113, 25);

frame.getContentPane().add(textField);

textField.setColumns(10);

textField_1 = new JTextField();

textField_1.setColumns(10);

textField_1.setBounds(101, 73, 113, 25);

frame.getContentPane().add(textField_1);

textField_2 = new JTextField();

textField_2.setColumns(10);

textField_2.setBounds(101, 112, 113, 25);

frame.getContentPane().add(textField_2);

textField_3 = new JTextField();

textField_3.setEditable(false);

textField_3.setColumns(10);

textField_3.setBounds(101, 199, 288, 25);

frame.getContentPane().add(textField_3);

textField_4 = new JTextField();

textField_4.setColumns(10);

textField_4.setBounds(101, 149, 113, 25);

frame.getContentPane().add(textField_4);

if(1==i)

{

JButton btnNewButton = new JButton("追　加");

btnNewButton.setBounds(276, 41, 113, 29);

frame.getContentPane().add(btnNewButton);

btnNewButton.addActionListener(this);

btnNewButton.setActionCommand("追加");

JButton button_1 = new JButton("删　除");

button_1.setBounds(276, 145, 113, 29);

frame.getContentPane().add(button_1);

button_1.addActionListener(this);

button_1.setActionCommand("删除");

}

JButton button = new JButton("查　询");

button.setBounds(276, 91, 113, 29);

frame.getContentPane().add(button);

button.addActionListener(this);

button.setActionCommand("查询");

}

@Override

public void actionPerformed(ActionEvent e) {

// TODO Auto-generated method stub

String name,age,sex,query=null;

int num,age1,count=0;

num=Integer.parseInt(textField.getText());

name=textField_1.getText();

age1=Integer.parseInt(textField_2.getText());

sex=textField_4.getText();

if(e.getActionCommand().equals("追加"))

{

query="insert into students values("+num+","+"'"+name+"',"+age1+",'"+sex+"');";

count=1;

}

else if(e.getActionCommand().equals("查询"))

{

query="select * from students where XSB="+num+";";

count=2;

}

else if(e.getActionCommand().equals("删除"))

{

query="delete from students where XSB="+num+" and name="+"'"+name+"'";

count=3;

}

Statement stmt=null;

ResultSet rs=null;

Connection con=null;

String jdriver="sun.jdbc.odbc.JdbcOdbcDriver";

String connectDB="jdbc:odbc:Students";

String query1=null;

try {

Class.forName(jdriver);

con=DriverManager.getConnection(connectDB);

stmt=con.createStatement();

if(count==1)

{

query1="select * from students where XSB="+num+";";

rs=stmt.executeQuery(query1);

if(rs.next())

textField_3.setText("已经由此记录，不能追加！");

else

{

stmt.executeUpdate(query);

textField_3.setText("已经追加完成！");

}

}

else if(2==count)

{

stmt.executeQuery(query);

rs=stmt.executeQuery(query);

if(rs.next())

{

textField_3.setText("已查找到此记录！");

}

else

{

textField_3.setText("没有此记录，可以追加！");

}

}

else if(3==count)

{

query1="select * from students where XSB="+num+" and name="+"'"+name+"'";

rs=stmt.executeQuery(query1);

if(rs.next())

{

stmt.executeUpdate(query);

textField_3.setText("已删除此记录！");

}

else

textField_3.setText("无此记录！");

}

} catch (ClassNotFoundException e1) {

// TODO Auto-generated catch block

e1.printStackTrace();

} catch (SQLException e1) {

// TODO Auto-generated catch block

e1.printStackTrace();

}

finally{

//关闭资源

if(stmt!=null){

try {

stmt.close();

} catch (Exception e2) {

// TODO: handle exception

}

stmt=null;

}

if(con!=null){

try {

con.close();

} catch (Exception e2) {

// TODO: handle exception

}

con=null;

}

}

}

}

Q4: 用java写一个手机商城注册界面代码

这篇文章主要介绍了java通过JFrame做一个登录系统的界面完整代码示例，具有一定借鉴价值，需要的朋友可以参考下。

在java的JFrame内通过创建匿名对象的方式做登录界面

package com.sxt;

import java.awt.Container;

import java.awt.GridLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPasswordField;

import javax.swing.JTextField;

public class LoginFrame extends JFrame{

JTextField txtname=new JTextField();

JPasswordField txtpass=new JPasswordField();

JButton bl=new JButton("登录");

JButton bg=new JButton("关闭");

//构造无参构造器把主要的方法放在构造器里,然后在main方法里面调

public LoginFrame(){

setBounds(25,25,250,250);

Container c = getContentPane();

c.setLayout(new GridLayout(4,2,10,10));

c.add(new JLabel("用户名"));

c.add(txtname);

c.add(new JLabel("密码"));

c.add(txtpass);

c.add(bl);

c.add(bg);

setDefaultCloseOperation(EXIT_ON_CLOSE);

setVisible(true);

//注意：此处是匿名内部类

bg.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent e) {

// TODO Auto-generated method stub

System.exit(0);

}

}

);

//注意：此处是匿名内部类

bl.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent e) {

Q5: java代码淘宝页面价格变化怎样写

你可以使用JavaScript来实现这个功能。首先，你需要在页面中添加一个JavaScript函数，该函数将会在每次价格变化时被调用。这个函数可以使用AJAX来发起一个请求，以获取最新的价格信息。然后，该函数可以使用DOM操作来更新页面上的价格显示。你可以使用setInterval()函数来定期调用这个函数，以获取最新的价格信息。

关于java淘宝登录界面代码和java淘宝登录界面代码是什么的介绍到此就结束了，不知道你从中找到你需要的信息了吗 ？如果你还想了解更多这方面的信息，记得收藏关注本站。