UUID工具类及使用

package UUIdtest;


import java.util.UUID;

public class UUIDUtil {
    public static String getUUID() {
        return UUID.randomUUID().toString();
    }
    
}

package UUIdtest;

import org.junit.Test;

public class TestUUID {
    @Test
    public void test3(){
        System.out.println(UUIDUtil.getUUID().replace("-", ""));
        System.out.println(UUIDUtil.getUUID());
        System.out.println(UUIDUtil.getUUID());
    }
}