我想格式化時間戳字段,值爲2017-08-03 13:30:20
,但在我的方法中控制檯中顯示的小時數是錯誤的?這是一個傑克遜格式錯誤還是需要一個自定義序列化程序?爲什麼在用Jackson的@JsonFormat註釋的java.sql.Timestamp字段中錯誤的時間?
Java代碼如下:
package demo.bean;
import com.fasterxml.jackson.annotation.JsonFormat;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.sql.Timestamp;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
public class TimestampDemo {
@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
private Timestamp time;
public Timestamp getTime() {
return time;
}
public void setTime(Timestamp time) {
this.time = time;
}
public static void main(String[] args) {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date date = null;
try {
date = sdf.parse("2017-08-03 13:30:20");
} catch (ParseException e) {
e.printStackTrace();
}
TimestampDemo demo = new TimestampDemo();
demo.setTime(new Timestamp(date.getTime()));
ObjectMapper mapper = new ObjectMapper();
try {
System.out.println(mapper.writerWithDefaultPrettyPrinter().writeValueAsString((demo)));
} catch (JsonProcessingException e) {
e.printStackTrace();
}
System.out.println(Locale.getDefault());
System.out.println(TimeZone.getDefault());
}
}
控制檯日誌
{
"time" : "2017-08-03 05:30:20"
}
zh_CN
sun.util.calendar.ZoneInfo[id="Asia/Shanghai",offset=28800000,dstSavings=0,useDaylight=false,transitions=19,lastRule=null]
如果日期是2017-08-03 7:30:20
控制檯時間2017-08-02 23:30:20
,
如果日期是2017-08-03 8:00:00
控制檯時間2017-08-03 00:00:00
,
8小時太早了,是時區還是區域設置問題?
我的配置是'mapper.setTimeZone(TimeZone.getTimeZone( 「亞洲/上海」));' –