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fix: 金额转分，程序上进行最大值判定，避免业务方无感知造成金额不可控问题 #106

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fix: 金额转分，程序上进行最大值判定，避免业务方无感知造成金额不可控问题 #106

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11 changes: 9 additions & 2 deletions pay-java-common/src/main/java/com/egzosn/pay/common/util/Util.java
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Original file line number Diff line number Diff line change
@@ -1,7 +1,10 @@
package com.egzosn.pay.common.util;

import com.egzosn.pay.common.bean.result.PayException;
import com.egzosn.pay.common.exception.PayErrorException;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.math.RoundingMode;
import java.util.Collection;
import java.util.Map;

Expand Down Expand Up @@ -590,7 +593,11 @@ public static byte[] subByte(byte[] input, int startIndex, int length) {
* @return 分的金额
*/
public static int conversionCentAmount(BigDecimal amount) {
return amount.multiply(HUNDRED).setScale(0, BigDecimal.ROUND_HALF_UP).intValue();
final BigDecimal decimal = amount.multiply(HUNDRED).setScale(0, RoundingMode.HALF_UP);
if (decimal.longValue() > (long) Integer.MAX_VALUE) {
throw new PayErrorException(new PayException("illegal parameter", "订单金额过大"));
}
return decimal.intValue();
}

/**
Expand All @@ -613,4 +620,4 @@ public static <V> boolean isEmpty(Collection<V> collection) {
}


}
}