界面实验任务

Posted CaptainAI

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源程序代码

  1 import javax.swing.JOptionPane;
  2 
  3 import org.omg.CORBA.StringHolder;
  4 
  5 /*
  6  * jiemian.java
  7  *
  8  * Created on __DATE__, __TIME__
  9  */
 10 
 11 /**
 12  *
 13  * @author  __USER__
 14  */
 15 public class jiemian extends javax.swing.JFrame {
 16 
 17     /** Creates new form jiemian */
 18     public jiemian() {
 19         initComponents();
 20     }
 21 
 22     /** This method is called from within the constructor to
 23      * initialize the form.
 24      * WARNING: Do NOT modify this code. The content of this method is
 25      * always regenerated by the Form Editor.
 26      */
 27     //GEN-BEGIN:initComponents
 28     // <editor-fold defaultstate="collapsed" desc="Generated Code">
 29     private void initComponents() {
 30 
 31         label1 = new java.awt.Label();
 32         textField1 = new java.awt.TextField();
 33         label2 = new java.awt.Label();
 34         textField2 = new java.awt.TextField();
 35         label3 = new java.awt.Label();
 36         textField3 = new java.awt.TextField();
 37         button1 = new java.awt.Button();
 38         button2 = new java.awt.Button();
 39 
 40         setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
 41         addWindowListener(new java.awt.event.WindowAdapter() {
 42             public void windowOpened(java.awt.event.WindowEvent evt) {
 43                 open(evt);
 44             }
 45         });
 46 
 47         label1.setText("\\u8d26\\u53f7");
 48 
 49         label2.setText("\\u5bc6\\u7801");
 50 
 51         label3.setText("\\u9a8c\\u8bc1\\u7801");
 52 
 53         button1.setLabel("\\u767b\\u5f55");
 54         button1.addActionListener(new java.awt.event.ActionListener() {
 55             public void actionPerformed(java.awt.event.ActionEvent evt) {
 56                 button1ActionPerformed(evt);
 57             }
 58         });
 59 
 60         button2.setLabel("\\u9000\\u51fa");
 61 
 62         javax.swing.GroupLayout layout = new javax.swing.GroupLayout(
 63                 getContentPane());
 64         getContentPane().setLayout(layout);
 65         layout.setHorizontalGroup(layout
 66                 .createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
 67                 .addGroup(
 68                         layout.createSequentialGroup()
 69                                 .addGap(29, 29, 29)
 70                                 .addGroup(
 71                                         layout.createParallelGroup(
 72                                                 javax.swing.GroupLayout.Alignment.LEADING)
 73                                                 .addComponent(
 74                                                         label2,
 75                                                         javax.swing.GroupLayout.Alignment.TRAILING,
 76                                                         javax.swing.GroupLayout.DEFAULT_SIZE,
 77                                                         97, Short.MAX_VALUE)
 78                                                 .addGroup(
 79                                                         layout.createSequentialGroup()
 80                                                                 .addComponent(
 81                                                                         label1,
 82                                                                         javax.swing.GroupLayout.PREFERRED_SIZE,
 83                                                                         46,
 84                                                                         javax.swing.GroupLayout.PREFERRED_SIZE)
 85                                                                 .addPreferredGap(
 86                                                                         javax.swing.LayoutStyle.ComponentPlacement.RELATED))
 87                                                 .addGroup(
 88                                                         layout.createSequentialGroup()
 89                                                                 .addComponent(
 90                                                                         label3,
 91                                                                         javax.swing.GroupLayout.PREFERRED_SIZE,
 92                                                                         68,
 93                                                                         javax.swing.GroupLayout.PREFERRED_SIZE)
 94                                                                 .addPreferredGap(
 95                                                                         javax.swing.LayoutStyle.ComponentPlacement.RELATED)))
 96                                 .addGroup(
 97                                         layout.createParallelGroup(
 98                                                 javax.swing.GroupLayout.Alignment.LEADING,
 99                                                 false)
100                                                 .addComponent(
101                                                         textField3,
102                                                         javax.swing.GroupLayout.DEFAULT_SIZE,
103                                                         javax.swing.GroupLayout.DEFAULT_SIZE,
104                                                         Short.MAX_VALUE)
105                                                 .addComponent(
106                                                         textField2,
107                                                         javax.swing.GroupLayout.DEFAULT_SIZE,
108                                                         javax.swing.GroupLayout.DEFAULT_SIZE,
109                                                         Short.MAX_VALUE)
110                                                 .addComponent(
111                                                         textField1,
112                                                         javax.swing.GroupLayout.DEFAULT_SIZE,
113                                                         132, Short.MAX_VALUE))
114                                 .addGap(142, 142, 142))
115                 .addGroup(
116                         javax.swing.GroupLayout.Alignment.TRAILING,
117                         layout.createSequentialGroup()
118                                 .addGap(45, 45, 45)
119                                 .addComponent(button1,
120                                         javax.swing.GroupLayout.PREFERRED_SIZE,
121                                         76,
122                                         javax.swing.GroupLayout.PREFERRED_SIZE)
123                                 .addPreferredGap(
124                                         javax.swing.LayoutStyle.ComponentPlacement.RELATED,
125                                         96, Short.MAX_VALUE)
126                                 .addComponent(button2,
127                                         javax.swing.GroupLayout.PREFERRED_SIZE,
128                                         72,
129                                         javax.swing.GroupLayout.PREFERRED_SIZE)
130                                 .addGap(111, 111, 111)));
131         layout.setVerticalGroup(layout
132                 .createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
133                 .addGroup(
134                         layout.createSequentialGroup()
135                                 .addGap(29, 29, 29)
136                                 .addGroup(
137                                         layout.createParallelGroup(
138                                                 javax.swing.GroupLayout.Alignment.LEADING)
139                                                 .addComponent(
140                                                         textField1,
141                                                         javax.swing.GroupLayout.PREFERRED_SIZE,
142                                                         javax.swing.GroupLayout.DEFAULT_SIZE,
143                                                         javax.swing.GroupLayout.PREFERRED_SIZE)
144                                                 .addComponent(
145                                                         label1,
146                                                         javax.swing.GroupLayout.PREFERRED_SIZE,
147                                                         javax.swing.GroupLayout.DEFAULT_SIZE,
148                                                         javax.swing.GroupLayout.PREFERRED_SIZE))
149                                 .addGap(32, 32, 32)
150                                 .addGroup(
151                                         layout.createParallelGroup(
152                                                 javax.swing.GroupLayout.Alignment.LEADING)
153                                                 .addComponent(
154                                                         textField2,
155                                                         javax.swing.GroupLayout.PREFERRED_SIZE,
156                                                         javax.swing.GroupLayout.DEFAULT_SIZE,
157                                                         javax.swing.GroupLayout.PREFERRED_SIZE)
158                                                 .addComponent(
159                                                         label2,
160                                                         javax.swing.GroupLayout.PREFERRED_SIZE,
161                                                         javax.swing.GroupLayout.DEFAULT_SIZE,
162                                                         javax.swing.GroupLayout.PREFERRED_SIZE))
163                                 .addGap(32, 32, 32)
164                                 .addGroup(
165                                         layout.createParallelGroup(
166                                                 javax.swing.GroupLayout.Alignment.TRAILING)
167                                                 .addComponent(
168                                                         textField3,
169                                                         javax.swing.GroupLayout.PREFERRED_SIZE,
170                                                         javax.swing.GroupLayout.DEFAULT_SIZE,
171                                                         javax.swing.GroupLayout.PREFERRED_SIZE)
172                                                 .addComponent(
173                                                         label3,
174                                                         javax.swing.GroupLayout.PREFERRED_SIZE,
175                                                         javax.swing.GroupLayout.DEFAULT_SIZE,
176                                                         javax.swing.GroupLayout.PREFERRED_SIZE))
177                                 .addGap(52, 52, 52)
178                                 .addGroup(
179                                         layout.createParallelGroup(
180                                                 javax.swing.GroupLayout.Alignment.TRAILING)
181                                                 .addComponent(
182                                                         button2,
183                                                         javax.swing.GroupLayout.PREFERRED_SIZE,
184                                                         javax.swing.GroupLayout.DEFAULT_SIZE,
185                                                         javax.swing.GroupLayout.PREFERRED_SIZE)
186                                                 .addComponent(
187                                                         button1,
188                                                         javax.swing.GroupLayout.PREFERRED_SIZE,
189                                                         javax.swing.GroupLayout.DEFAULT_SIZE,
190                                                         javax.swing.GroupLayout.PREFERRED_SIZE))
191                                 .addContainerGap(63, Short.MAX_VALUE)));
192 
193         pack();
194     }// </editor-fold>
195     //GEN-END:initComponents
196 
197     private void open(java.awt.event.WindowEvent evt) {
198         // TODO add your handling code here:
199         String b = "";
200         for (int i = 0; i < 6; i++) {
201             String c;
202             c = sj();
203             b = b + c;
204         }
205         label3.setText(b);
206     }
207 
208     private void button1ActionPerformed(java.awt.event.ActionEvent evt) {
209 
210         if (textField3.getText() .equals(label3.getText())) {
211             JOptionPane.showMessageDialog(null, "验证码正确登录成功");
212 
213         } 
214         
215         else {
216             JOptionPane.showMessageDialog(null, "验证码错误登录失败,验证码已经重新刷新");
217 
218             String b = "";
219             for (int i = 0; i < 6; i++) {
220                 String c;
221                 c = sj();
222                 b = b + c;
223             }
224             label3.setText(b);
225 
226         }
227 
228     }
229 
230     /**
231      * @param args the command line arguments
232      */
233     public static String sj() {
234         int a = (int) (Math.random() * 26);
235         return cb(a);
236     }
237 
238     public static String cb(int a) {
239         String b[] = { "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K",
240                 "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W",
241                 "X", "Y", "Z" };
242         return b[a];
243     }
244 
245     public static void main(String args[]) {
246         java.awt.EventQueue.invokeLater(new Runnable() {
247             public void run() {
248                 new jiemian().setVisible(true);
249             }
250         });
251     }
252 
253     //GEN-BEGIN:variables
254     // Variables declaration - do not modify
255     private java.awt.Button button1;
256     private java.awt.Button button2;
257     private java.awt.Label label1;
258     private java.awt.Label label2;
259     private java.awt.Label label3;
260     private java.awt.TextField textField1;
261     private java.awt.TextField textField2;
262     private java.awt.TextField textField3;
263     // End of variables declaration//GEN-END:variables
264 
265 }

该代码画出来的,最后在登录位置设置验证码,首先随机26个数,定义字符串从A到Z,然后返回任意字符串中的一个,利用for循环,显示六个字符如果标签中的字符与随机字符相同则成功,若不同则重新输入,且验证码进行改变。

实验截图

实验不足

1.验证码没有像熟悉的那样在右侧,且没有了验证码字符显示。

2.验证码只有大写的英文字母。

3.界面不好看。

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