方法一：通过String.substring()方法将最后的三位去掉

/** 
 * 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; } }

方法二：通过整除将最后的三位去掉

/** 
 * 获取精确到秒的时间戳 
 * @param date 
 * @return 
 */  
public static int getSecondTimestampTwo(Date date){ if (null == date) { return 0; } String timestamp = String.valueOf(date.getTime()/1000); return Integer.valueOf(timestamp); }