Java从日期值中获取时间戳-“;时间戳;是否不是已解析类型?
我不熟悉Java从日期值中获取时间戳-“;时间戳;是否不是已解析类型?,java,jdbc,timestamp,Java,Jdbc,Timestamp,我不熟悉Javadevelopment,我正在尝试将日期值“2017-09-14”转换为时间戳,如“1355759900000” 我试着得到这样的转换 Date starting_time = (Date) obj.get("assessment date"); java.sql.Timestamp timeStampDate = new Timestamp(starting_time.getCreatedTime().getTime()); System.out.println("Today
Java
development,我正在尝试将日期值“2017-09-14”转换为时间戳,如“1355759900000”
我试着得到这样的转换
Date starting_time = (Date) obj.get("assessment date");
java.sql.Timestamp timeStampDate = new Timestamp(starting_time.getCreatedTime().getTime());
System.out.println("Today is " +timeStampDate);
但它告诉我,Timestamp
不是解析类型
我还需要做一个计算,创建一个结束日期——从开始日期算起的未来的一天
在这之后它开始工作了
//get start time date
Date starting_time = (Date) obj.get("assessment date");
//get start time date
//get end time date
Calendar c = Calendar.getInstance();
c.setTime(starting_time);
c.add(Calendar.DATE, 1);
java.util.Date ending_time = c.getTime();
//get end time date
long starting_time_timestamp = new Timestamp(starting_time.getTime()).getTime();
long ending_time_timestamp = new Timestamp(ending_time.getTime()).getTime();
创建时间戳:
Timestamp timestamp = new Timestamp(date.getTime());
您如何将“2017-09-14”转换为“1355759900000”这样的时间戳
我没有得到这个,但这里是你可以使用的代码
输出为:
今天是2015-03-31 00:00:00.0
字符串时间戳:31032015000000
import java.io.IOException;
import java.sql.Date;
import java.sql.Timestamp;
import java.text.SimpleDateFormat;
public class test {
public static void main(String[] args) throws IOException, InterruptedException {
String str="2015-03-31";
Date starting_time = Date.valueOf(str);
java.sql.Timestamp timeStampDate = new Timestamp(starting_time.getTime());
System.out.println("Today is " + timeStampDate);
SimpleDateFormat sdf = new SimpleDateFormat("ddMMyyyyHHmmss");
System.out.println("String timestamp: "+sdf.format(timeStampDate));
}
}