KaptchaTextCreator.java
2.04 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
package com.huaheng.gateway.config;
import java.util.Random;
import com.google.code.kaptcha.text.impl.DefaultTextCreator;
/**
* 验证码文本生成器
*
* @author ruoyi
*/
public class KaptchaTextCreator extends DefaultTextCreator
{
private static final String[] CNUMBERS = "0,1,2,3,4,5,6,7,8,9,10".split(",");
@Override
public String getText()
{
Integer result = 0;
Random random = new Random();
int x = random.nextInt(10);
int y = random.nextInt(10);
StringBuilder suChinese = new StringBuilder();
int randomoperands = (int) Math.round(Math.random() * 2);
if (randomoperands == 0)
{
result = x * y;
suChinese.append(CNUMBERS[x]);
suChinese.append("*");
suChinese.append(CNUMBERS[y]);
}
else if (randomoperands == 1)
{
if (!(x == 0) && y % x == 0)
{
result = y / x;
suChinese.append(CNUMBERS[y]);
suChinese.append("/");
suChinese.append(CNUMBERS[x]);
}
else
{
result = x + y;
suChinese.append(CNUMBERS[x]);
suChinese.append("+");
suChinese.append(CNUMBERS[y]);
}
}
else if (randomoperands == 2)
{
if (x >= y)
{
result = x - y;
suChinese.append(CNUMBERS[x]);
suChinese.append("-");
suChinese.append(CNUMBERS[y]);
}
else
{
result = y - x;
suChinese.append(CNUMBERS[y]);
suChinese.append("-");
suChinese.append(CNUMBERS[x]);
}
}
else
{
result = x + y;
suChinese.append(CNUMBERS[x]);
suChinese.append("+");
suChinese.append(CNUMBERS[y]);
}
suChinese.append("=?@" + result);
return suChinese.toString();
}
}