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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

2.X
疯狂的狮子li 2022-02-24 13:12:41 +08:00
parent e560ebaeae
commit 3b79582251
1 changed files with 8 additions and 8 deletions
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16
ruoyi-gateway/src/main/java/com/ruoyi/gateway/captcha/UnsignedMathGenerator.java
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@ -15,7 +15,7 @@ public class UnsignedMathGenerator implements CodeGenerator {
private static final long serialVersionUID = -5514819971774091076L;
private static final String operators = "+-*";
private static final String OPERATORS = "+-*";
/**
* 参与计算数字最大长度
@ -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