H2520NY的博客

/** * 获取当前时间的时间戳 * @return */ public static String getTimeInMillis() { long timeInMillis = Calendar.getInstance().getTimeInMillis(); return timeInMillis+""; } /** * 获取位数为7位的随机数 * @ret...

首先引入jar包 <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.7</version> </depe...