获取精确到秒的时间戳

/**
* 获取精确到秒的时间戳
*
* @return
*/
public static int getSecondTimestamp(Date date) {
if (null == date) {
return 0;
}
String timestamp = String.valueOf(date.getTime());
int length = timestamp.length();
if (length > 3) {
return Integer.valueOf(timestamp.substring(0, length - 3));
} else {
return 0;
}
}