@Test
public void test1() {
//
DateUtil cal = DateUtil.now();
cal.setTime(0, 0, 0, 0);
int year = cal.getYear();
int month = cal.getMonth();
// 添加12个月的计划
for (int i = 1; i <= 12; i++) {
// 设置月份
cal.setYear(year);
cal.setMonth(month + i);
// 从月末的一周中找出周四和周五
cal.setDay(-7);
int day = cal.getDay();
for (int j = 1; j <= 7; j++) {
cal.setDay(day + j);
if (cal.getWeek() == 4 || cal.getWeek() == 5) {
String str = DateUtil.format(cal.get(), "yyyy-MM-dd HH:mm:ss E");
System.out.println("i=" + i + ", day=" + day + ", date=" + str);
}
}
}
}
public static synchronized String getBatchNo() {
Date date = new Date();
String nowStr = DateUtil.format(date, "yyyyMMddHHmmss");
Random rd = new Random();
String randomStr = "";
for (int i = 0; i < 6; i++) {
randomStr += rd.nextInt(10);
}
return nowStr + randomStr;
}
/**
* @author ： 陈园
* @since： 2013-8-17 上午11:30:03 功能描述：生成流水号 如20130810002 年月后的以为代表1 代表预约单 2代表自建订单 3 代表结算单 方法的参数和返回值
* @param sum
* @param flag
* @return String ================================== 修改历史 修改人 修改时间 修改原因及内容
* <p>==================================
*/
public static String serialCodeMax(int sum, int flag) {
String orderNumber = DateUtil.format(new Date(), "yyyyMM");
String strCode = String.valueOf(sum);
strCode.length();
for (int i = 4 - strCode.length(); i > 0; i--) {
strCode = "0" + strCode;
}
return orderNumber + String.valueOf(flag) + strCode;
}
public static TimeSchedule2 getTimeSchedule2(String startTime, String endTime) {
TimeSchedule2 timeSchedule = new TimeSchedule2();
SimpleDateFormat dfs = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
if (null == startTime) {
startTime = DateUtil.format(DateUtil.parse(endTime), "yyyy-MM-dd");
startTime = startTime + " 00:00:00";
} else {
startTime = DateUtil.format(DateUtil.parse(startTime), "yyyy-MM-dd");
startTime = startTime + " 00:00:00";
}
try {
java.util.Date begin = dfs.parse(startTime);
java.util.Date end = dfs.parse(endTime);
long between = (end.getTime() - begin.getTime()) / 1000; // 除以1000是为了转换成秒
long days = (between / 60) / (24 * 60);
long hours = (between / 60) % (24 * 60) / 60;
long minutes = (between / 60) % 60;
long seconds = between - days * (24 * 60 * 60) - hours * (60 * 60) - minutes * 60;
timeSchedule.setDates(days);
timeSchedule.setHour(hours);
timeSchedule.setMinute(minutes);
timeSchedule.setSecond(seconds);
} catch (ParseException e) {
e.printStackTrace();
}
return timeSchedule;
}
protected static void recordToErrorCounter(String cmd) {
String today = DateUtil.format(new Date(), "yyyyMMdd");
try {
RedisUtil.incr(ERROR_COUNT_KEY + today);
} catch (Exception e) {
logger.warn("记录api返回错误请求的次数失败, today: {}", today, e);
}
try {
RedisUtil.incr(ERROR_COUNT_KEY + today + ":cmd:" + cmd);
} catch (Exception e) {
logger.warn("记录cmd: {}, today: {} 返回错误请求的次数失败", cmd, today, e);
}
}
public static String formatDates(String date) {
return isEmpty(date) ? "" : DateUtil.format(date, "yyyy-MM-dd", "yyyyMMdd");
}
@Override
public void serialize(
Date date, JsonGenerator jsonGenerator, SerializerProvider serializerProvider)
throws IOException, JsonProcessingException {
jsonGenerator.writeString(DateUtil.format(date));
}