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修复 RandomUtil中randomEle方法数组越界异常

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This commit is contained in:
yichengxian 2020-10-29 14:46:33 +08:00
parent 19eba6086f
commit 8c793de4b2
1 changed files with 7 additions and 0 deletions
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7
hutool-core/src/main/java/cn/hutool/core/util/RandomUtil.java
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@ -310,6 +310,9 @@ public class RandomUtil {
* @return 随机元素 * @return 随机元素
*/ */
public static <T> T randomEle(List<T> list, int limit) { public static <T> T randomEle(List<T> list, int limit) {
if (list.size() < limit){
limit = list.size();
}
return list.get(randomInt(limit)); return list.get(randomInt(limit));
} }
@ -335,6 +338,9 @@ public class RandomUtil {
* @since 3.3.0 * @since 3.3.0
*/ */
public static <T> T randomEle(T[] array, int limit) { public static <T> T randomEle(T[] array, int limit) {
if (array.length < limit){
limit = array.length;
}
return array[randomInt(limit)]; return array[randomInt(limit)];
} }
@ -606,4 +612,5 @@ public class RandomUtil {
return DateUtil.offset(baseDate, dateField, randomInt(min, max)); return DateUtil.offset(baseDate, dateField, randomInt(min, max));
} }
} }