输出如下：
java.util.GregorianCalendar[time=1370340035023,areFieldsSet=true,areAllFieldsSet=true,lenient=true,zone=sun.util.calendar.ZoneInfo[id="Asia/Shanghai",offset=28800000,dstSavings=0,useDaylight=false,transitions=19,lastRule=null],firstDayOfWeek=1,minimalDaysInFirstWeek=1,ERA=1,YEAR=2013,MONTH=5,WEEK_OF_YEAR=23,WEEK_OF_MONTH=2,DAY_OF_MONTH=4,DAY_OF_YEAR=155,DAY_OF_WEEK=3,DAY_OF_WEEK_IN_MONTH=1,AM_PM=1,HOUR=6,HOUR_OF_DAY=18,MINUTE=0,SECOND=35,MILLISECOND=23,ZONE_OFFSET=28800000,DST_OFFSET=0]

输出如下：
java.util.GregorianCalendar[time=1370340035023,areFieldsSet=true,areAllFieldsSet=true,lenient=true,zone=sun.util.calendar.ZoneInfo[id="Asia/Shanghai",offset=28800000,dstSavings=0,useDaylight=false,transitions=19,lastRule=null],firstDayOfWeek=1,minimalDaysInFirstWeek=1,ERA=1,YEAR=2013,MONTH=5,WEEK_OF_YEAR=23,WEEK_OF_MONTH=2,DAY_OF_MONTH=4,DAY_OF_YEAR=155,DAY_OF_WEEK=3,DAY_OF_WEEK_IN_MONTH=1,AM_PM=1,HOUR=6,HOUR_OF_DAY=18,MINUTE=0,SECOND=35,MILLISECOND=23,ZONE_OFFSET=28800000,DST_OFFSET=0]