int long_习惯累积沉淀_新浪博客

DateFormat dateFormat1 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

Date date=null;

try {

date = dateFormat1.parse("2015-01-01 00:00:00");  //?

} catch (ParseException e) {

e.printStackTrace();

}

Long d = date.getTime();

Random random = new Random();

for(Long i = 0L ;i < 365 ; i++){

OhlcMarketData data = new OhlcMarketData();

data.setCode("AU9999");

data.setPeriod("xD");

  data.setBeginTime(new Date(d+i*24*60*60*1000));

data.setEndTime(new Date(d+(i+1)*24*60*60*1000 -1) );

data.setCreatedBy("TestData");

data.setCreatedTime(new Date());

int r1 = random.nextInt(500);

data.setOpenPrice((double) r1);

data.setHighPrice((double) r1+100);

data.setLowPrice((double) r1+200);

data.setClosePrice((double) r1+300);

data.setVolume((long) (r1*10));

ohlcMarketDataService.create(data);

}

原来的循环的int i  是溢出的.到了i>30后日期就到2014年了. 换了long就对了