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update 优化随机数生成方式 避免容易生成两个相同随机数的问题

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佟明键 2022-02-24 12:39:28 +08:00
parent 81ff77c2d5
commit 8b097af195
1 changed files with 7 additions and 7 deletions
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14
ruoyi-common/src/main/java/com/ruoyi/common/captcha/UnsignedMathGenerator.java
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@ -41,14 +41,14 @@ public class UnsignedMathGenerator implements CodeGenerator {
@Override
public String generate() {
final int limit = getLimit();
int min = RandomUtil.randomInt(limit);
int max = RandomUtil.randomInt(min, limit);
String number1 = Integer.toString(max);
String number2 = Integer.toString(min);
number1 = StringUtils.rightPad(number1, this.numberLength, CharUtil.SPACE);
number2 = StringUtils.rightPad(number2, this.numberLength, CharUtil.SPACE);
int a = RandomUtil.randomInt(limit);
int b = RandomUtil.randomInt(limit);
String max = Integer.toString(Math.max(a,b));
String min = Integer.toString(Math.min(a,b));
max = StringUtils.rightPad(max, this.numberLength, CharUtil.SPACE);
min = StringUtils.rightPad(min, this.numberLength, CharUtil.SPACE);
return number1 + RandomUtil.randomChar(OPERATORS) + number2 + '=';
return max + RandomUtil.randomChar(OPERATORS) + min + '=';
}
@Override