GUI界面java验证码代码

package com.modle;

import java.awt.Button;

import java.awt.Color;

import java.awt.Font;

import java.awt.Frame;

import bel;

import java.awt.TextField;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseEvent;

import java.awt.event.WindowAdapter;

import java.awt.event.WindowEvent;

import java.util.Random;

import javax.swing.JOptionPane;

public class YanModel extends Frame{

Button bt = new Button("核对");

TextField tf = new TextField();

Label lb = new Label();

Label lbRefresh = new Label("看不清");

public void lunchFrame(){

this.setBounds(0, 0, 250, 200);

this.setLayout(null);

this.add(tf);

tf.setBounds(20, 50, 100, 50);

this.add(lb);

lb.setBounds(130, 50, 50, 50);

lb.setText(makeYanZhengMa());

lb.setBackground(new Color(0).YELLOW);

this.add(lbRefresh);

lbRefresh.setFont(new Font("楷体

",Font.HANGING_BASELINE,12));

lbRefresh.setForeground(new Color(0).BLUE);

lbRefresh.setBounds(190, 50, 50, 50);

lbRefresh.addMouseListener(new MouseAdapter(){ //刷新验证码

@Override

public void mouseClicked(MouseEvent e) {

lb.setText(makeYanZhengMa());

}

});

this.add(bt);

bt.setBounds(100, 120, 30, 30);

bt.addActionListener(new ActionListener(){

@Override

public void actionPerformed(ActionEvent e) {

// TODO Auto-generated method stub

if(tf.getText().equals(lb.getText())){

JOptionPane.showMessageDialog(null, "验证正确");

}else{

JOptionPane.showMessageDialog(null, "验证失败");

}

}});

this.addWindowListener(new WindowAdapter(){

@Override

public void windowClosing(WindowEvent e) {

// TODO Auto-generated method stub

System.exit(0);

}

});

this.setVisible(true);

}

//产生随机验证码

public String makeYanZhengMa(){

String[] str = {"A","B","C","D","E","F","G","H","I","J","K","L","M","N","O ","P","Q","R","S","T","U","V","W","X","Y","Z",

"a","b","c","d","e","f","g","h","i","j","k","l","m","n"," o","p","q","r","s","t","u","v","w","x","y","z",

"0","1","2","3","4","5","6","7","8","9"};

Random random = new Random();

int i = random.nextInt(62);

int j = random.nextInt(62);

int k = random.nextInt(62);

int z = random.nextInt(62);

int x = random.nextInt(62);

int y = random.nextInt(62);

return str[i]+str[j]+str[k]+str[z]+str[x]+str[y];

}

public static void main(String[] args) {

new YanModel().lunchFrame();

}

}