/**

* 32位去除'-'的UUID

*/

public static String getUUID() {

String uuid = java.util.UUID.randomUUID().toString();

uuid = uuid.replace("-", "");

return uuid;

}

/**

* 获取现在时间-线程不安全

*

* @return 返回时间类型yyyyMMddHHmmssSSS

*/

public static String getNowDate() {

Date currentTime = new Date();

SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMddHHmmssSSS");

String dateString = formatter.format(currentTime);

return dateString;

}

 

// 获取当前系统时间——UUID-不安全

public static String getCurTimeUUID() {

return getCurTime("yyyyMMddHHmmssSSS");

}

// 指定格式获取当前系统时间-线程不安全

public static String getCurTime(String formatStr) {

Date date = new Date(System.currentTimeMillis());

SimpleDateFormat dateFormat = new SimpleDateFormat(formatStr);

String curString = dateFormat.format(date);

return curString;

}