com.starmcc.qmframework.tools.operation.QmRandomUtil Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of qm-framework Show documentation

springboot based on a series of packaging framework. QmFramework to implements AOP, rewrite the requestBody, global exception catching,version checking, request body parameter symmetric encryption mechanism, controller packaging and the toolkit collection. thank you for using it.

There is a newer version: 3.0.1-RELEASE

Show newest version

package com.starmcc.qmframework.tools.operation;

import java.util.Random;
import java.util.UUID;

/**
 * 随机生成工具类
 *
 * @Author qm
 * @Date 2018年11月24日 上午2:06:55
 */
public class QmRandomUtil {

    /**
     * 生成UUID
     *
     * @return uuid
     */
    public static String createUUID() {
        UUID uuid = UUID.randomUUID();
        String str = uuid.toString();
        // 去掉"-"符号
        String temp = str.substring(0, 8) + str.substring(9, 13) + str.substring(14, 18) + str.substring(19, 23)
                + str.substring(24);
        return temp;
    }

    /**
     * 获取随机数字符串
     *
     * @param size 长度
     * @return 随机数字符串
     */
    public static String createRandom(int size) {
        Random random = new Random();
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i <= size; i++) {
            sb.append(String.valueOf(random.nextInt(9)));
        }
        return sb.toString();
    }


}