java get timestamp of current time

package com.teamdev.jxbrowser.chromium.demo.k_spider.util;

import java.util.Date;

public class GetData {
/**
* 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; 
    } 
} 

public static void main(String[] args) {
System.out.println(getSecondTimestamp(new Date()));
}
}