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34 lines
861 B
34 lines
861 B
package xyz.wbsite.frame.utils;
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import java.util.Random;
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public class RandomUtil {
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/**
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* 获取一个最小为[min,max)范围的随机数
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* @param min 最小(包含)
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* @param max 最大(不包含)
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* @return
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*/
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public static int getInt(int min, int max) {
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Random random = new Random();
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int nextInt = random.nextInt(max - min);
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return nextInt + min;
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}
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/**
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* 获取一串指定长度、并指定随机源的字符串
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* @param dict 随机源字典
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* @param len 长度
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* @return
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*/
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public static String getString(String dict, int len) {
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Random r = new Random();
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StringBuilder rs = new StringBuilder();
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for (int j = 0; j < len; j++) {
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rs.append(dict.charAt(r.nextInt(dict.length())));
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}
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return rs.toString();
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}
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}
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