package com.exam.util;
import org.apache.commons.lang.StringUtils;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Locale;
import java.util.logging.Level;
import java.util.logging.Logger;
public class DateUtil {
public final static long ONE_DAY_SECONDS = 86400;
public final static String shortFormat = "yyyyMMdd";
public final static String longFormat = "yyyyMMddHHmmss";
public final static String concurrentFormat = "yyyyMMddHHmmssSSS";
public final static String shortConcurrentFormat = "yyMMddHHmmssSSS";
public final static String webFormat = "yyyy-MM-dd";
public final static String webMonthFormat = "yyyy-MM";
public final static String timeFormat = "HH:mm:ss";
public final static String monthFormat = "yyyyMM";
public final static String chineseDtFormat = "yyyy年MM月dd日";
public final static String chineseYMFormat = "yyyy年MM月";
public final static String newFormat = "yyyy-MM-dd HH:mm:ss";
public final static String noSecondFormat = "yyyy-MM-dd HH:mm";
public final static String MdFormat = "MM-dd";
public final static long ONE_DAY_MILL_SECONDS = 86400000;
public static DateFormat getNewDateFormat(String pattern) {
DateFormat df = new SimpleDateFormat(pattern);
df.setLenient(false);
return df;
}
public static String format(Date date, String format) {
if (date == null) {
return null;
}
return new SimpleDateFormat(format).format(date);
}
public static String format(String dateStr, String oldFormat, String newFormat) {
if (dateStr == null) {
return null;
}
String result = null;
DateFormat oldDateFormat = new SimpleDateFormat(oldFormat);
DateFormat newDateFormat = new SimpleDateFormat(newFormat);
try {
Date date = oldDateFormat.parse(dateStr);
result = newDateFormat.format(date);
} catch (ParseException e) {
e.printStackTrace();
}
return result;
}
public static Date parseDateNoTime(String sDate) {
DateFormat dateFormat = new SimpleDateFormat(shortFormat);
Date date = null;
if ((sDate == null) || (sDate.length() < shortFormat.length())) {
return null;
}
if (!StringUtils.isNumeric(sDate)) {
return null;
}
try {
date = dateFormat.parse(sDate);
} catch (ParseException e) {
e.printStackTrace();
}
return date;
}
public static Date parseDateNoTime(String sDate, String format) throws ParseException {
if (StringUtils.isBlank(format)) {
throw new ParseException("Null format. ", 0);
}
DateFormat dateFormat = new SimpleDateFormat(format);
if ((sDate == null) || (sDate.length() < format.length())) {
throw new ParseException("length too little", 0);
}
return dateFormat.parse(sDate);
}
public static Date parseDateNoTimeWithDelimit(String sDate, String delimit) throws ParseException {
sDate = sDate.replaceAll(delimit, "");
DateFormat dateFormat = new SimpleDateFormat(shortFormat);
if ((sDate == null) || (sDate.length() != shortFormat.length())) {
throw new ParseException("length not match", 0);
}
return dateFormat.parse(sDate);
}
public static Date parseDateLongFormat(String sDate) {
DateFormat dateFormat = new SimpleDateFormat(longFormat);
Date d = null;
if ((sDate != null) && (sDate.length() == longFormat.length())) {
try {
d = dateFormat.parse(sDate);
} catch (ParseException ex) {
return null;
}
}
return d;
}
public static Date parseDateNewFormat(String sDate) {
DateFormat dateFormat = new SimpleDateFormat(newFormat);
Date d = null;
dateFormat.setLenient(false);
if ((sDate != null) && (sDate.length() == newFormat.length())) {
try {
d = dateFormat.parse(sDate);
} catch (ParseException ex) {
return null;
}
}
return d;
}
public static Date parseDateNoSecondFormat(String sDate) {
DateFormat dateFormat = new SimpleDateFormat(noSecondFormat);
Date d = null;
dateFormat.setLenient(false);
if ((sDate != null) && (sDate.length() == noSecondFormat.length())) {
try {
d = dateFormat.parse(sDate);
} catch (ParseException ex) {
return null;
}
}
return d;
}
public static Date parseDateWebFormat(String sDate) {
DateFormat dateFormat = new SimpleDateFormat(webFormat);
Date d = null;
dateFormat.setLenient(false);
if ((sDate != null) && (sDate.length() == webFormat.length())) {
try {
d = dateFormat.parse(sDate);
} catch (ParseException ex) {
return null;
}
}
return d;
}
public static Date parseDateWebMonthFormat(String sDate) {
DateFormat dateFormat = new SimpleDateFormat(webMonthFormat);
Date d = null;
dateFormat.setLenient(false);
if ((sDate != null) && (sDate.length() == webMonthFormat.length())) {
try {
d = dateFormat.parse(sDate);
} catch (ParseException ex) {
return null;
}
}
return d;
}
/**
* 计算当前时间几小时之后的时间
*
* @param date
* @param hours
*
* @return
*/
public static Date addHours(Date date, long hours) {
return addMinutes(date, hours * 60);
}
/**
* 计算当前时间几分钟之后的时间
*
* @param date
* @param minutes
*
* @return
*/
public static Date addMinutes(Date date, long minutes) {
return addSeconds(date, minutes * 60);
}
/**
* @param date1
* @param secs
*
* @return
*/
public static Date addSeconds(Date date1, long secs) {
return new Date(date1.getTime() + (secs * 1000));
}
/**
* 判断输入的字符串是否为合法的小时
*
* @param hourStr
*
* @return true/false
*/
public static boolean isValidHour(String hourStr) {
if (!StringUtils.isEmpty(hourStr) && StringUtils.isNumeric(hourStr)) {
int hour = new Integer(hourStr).intValue();
if ((hour >= 0) && (hour <= 23)) {
return true;
}
}
return false;
}
/**
* 判断输入的字符串是否为合法的分或秒
*
* @param minuteStr
*
* @return true/false
*/
public static boolean isValidMinuteOrSecond(String str) {
if (!StringUtils.isEmpty(str) && StringUtils.isNumeric(str)) {
int hour = new Integer(str).intValue();
if ((hour >= 0) && (hour <= 59)) {
return true;
}
}
return false;
}
/**
* 取得新的日期
*
* @param date1
* 日期
* @param days
* 天数
*
* @return 新的日期
*/
public static Date addDays(Date date1, long days) {
Calendar cal = Calendar.getInstance();
cal.setTime(date1);
cal.add(Calendar.DATE, (int) days);
return cal.getTime();
}
public static String getTomorrowDateString(String sDate) throws ParseException {
Date aDate = parseDateNoTime(sDate);
aDate = addSeconds(aDate, ONE_DAY_SECONDS);
return getDateString(aDate);
}
public static String getTomorrowDateNewFMTString(String sDate) throws ParseException {
Date aDate = parseDateWebFormat(sDate);
aDate = addDays(aDate, 1);
return getWebDateString(aDate);
}
public static String getTomorrowDateNewFormatString(String sDate) throws ParseException {
Date aDate = parseDateNewFormat(sDate);
aDate = addDays(aDate, 1);
return getWebDateString(aDate);
}
public static String getLongDateString(Date date) {
DateFormat dateFormat = new SimpleDateFormat(longFormat);
return getDateString(date, dateFormat);
}
public static String getNewFormatDateString(Date date) {
DateFormat dateFormat = new SimpleDateFormat(newFormat);
return getDateString(date, dateFormat);
}
public static String getWebFormatDateString(Date date) {
DateFormat dateFormat = new SimpleDateFormat(webFormat);
return getDateString(date, dateFormat);
}
public static String getConcurrentFormatDateString(Date date) {
DateFormat dateFormat = new SimpleDateFormat(concurrentFormat);
return getDateString(date, dateFormat);
}
public static String getDateString(Date date, DateFormat dateFormat) {
if (date == null || dateFormat == null) {
return null;
}
return dateFormat
Java项目:在线考试平台(java+Springboot+ssm+mysql+maven) （1215个子文件） 
DateUtil.class 17KB ExamWebController.class 15KB UserServiceImpl.class 13KB UserController.class 11KB RoleController.class 8KB UploadController.class 8KB ExaminationController.class 8KB GradeController.class 7KB QuestionServiceImpl.class 7KB ShiroConfig.class 7KB ShiroRealm.class 7KB User.class 6KB KickoutSessionControlFilter.class 6KB SystemController.class 6KB ClassesController.class 5KB CommentController.class 5KB InstituteController.class 5KB SubjectController.class 5KB QuestionController.class 5KB RedisServiceImpl.class 5KB Comment.class 5KB RoleServiceImpl.class 5KB PermissionController.class 5KB CopyUtil.class 5KB ShiroService.class 5KB CloudStorageConfigVo.class 5KB QiNiuYunUtil.class 5KB RedisConfig.class 4KB AdminRenderController.class 4KB Examination.class 4KB LinksController.class 4KB ExaminationServiceImpl.class 4KB TagController.class 4KB OnlineUserController.class 4KB Question.class 4KB Grade.class 4KB GradeServiceImpl.class 4KB RenderController.class 4KB Permission.class 3KB RedisCacheAspect.class 3KB KaptchaController.class 3KB PermissionServiceImpl.class 3KB PageVo.class 3KB UUIDUtil.class 3KB AspectUtil.class 3KB QCloudUtil.class 3KB ExamQuestionServiceImpl.class 3KB XssKillerUtil.class 3KB CoreUtils.class 3KB Classes.class 3KB PushArticleUtil.class 3KB UploadResponse.class 3KB GradeConditionVo.class 3KB Institute.class 3KB ExceptionHandleController.class 3KB UserOnlineVo.class 2KB Role.class 2KB SysConfigServiceImpl.class 2KB UserService.class 2KB BaseServiceImpl.class 2KB SysConfigKey.class 2KB Link.class 2KB ExamApiController.class 2KB Subject.class 2KB MD5.class 2KB StatisticsController.class 2KB ResultUtil.class 2KB SiteInfoController.class 2KB PasswordHelper.class 2KB ResponseStatus.class 2KB UserMapper.class 2KB JsoupUtil.class 2KB ModuleService.class 2KB ExaminationConditionVo.class 2KB CommentConditionVo.class 2KB PermissionTreeListVo.class 2KB SysConfig.class 2KB SubjectServiceImpl.class 2KB ResponseVo.class 2KB StatisticConditionVo.class 2KB SpringContextHolder.class 2KB UserConditionVo.class 2KB RedisService.class 2KB InstituteServiceImpl.class 2KB SiteInfoServiceImpl.class 2KB KaptchaConfig.class 2KB IpUtil.class 2KB ClassesServiceImpl.class 2KB QuestionConditionVo.class 1KB ErrorController.class 1KB RegexUtils.class 1KB RoleService.class 1KB CommentServiceImpl.class 1KB RolePermission.class 1KB CacheKeyUtil.class 1KB ExaminationMapper.class 1KB UserRole.class 1KB PermissionMapper.class 1KB DruidConfig.class 1KB MyErrorAttributes.class 1KB共 1215 条
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资源评论
yz_awen2022-06-19用户下载后在一定时间内未进行评价，系统默认好评。
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qq_536161372023-04-09感谢大佬分享的资源，对我启发很大，给了我新的灵感。
