一次 JDBC 与 MySQL 因 “CST” 时区协商误解导致时间差了 14 或 13 小时的排错经历...
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CST 時區
名為 CST 的時區是一個很混亂的時區，有四種含義：
- 美國中部時間 Central Standard Time (USA) UTC-06:00
- 澳大利亞中部時間 Central Standard Time (Australia) UTC+09:30
- 中國標準時 China Standard Time UTC+08:00
- 古巴標準時 Cuba Standard Time UTC-04:00
今天是“4月28日”。為什么提到日期？因為美國從“3月11日”至“11月7日”實行夏令時，美國中部時間改為 UTC-05:00，與 UTC+08:00 相差 13 小時。
排錯過程
在項目中，偶然發現數據庫中存儲的 Timestamp 字段的 unix_timestamp() 值比真實值少了 13 個小時。通過調試追蹤，發現了?com.mysql.cj.jdbc?里的時區協商有問題。
當 JDBC 與 MySQL 開始建立連接時，會調用?com.mysql.cj.jdbc.ConnectionImpl.initializePropsFromServer()?獲取服務器參數，其中我們看到調用?this.session.configureTimezone()?函數，它負責配置時區。
public void configureTimezone() {String configuredTimeZoneOnServer = getServerVariable("time_zone");if ("SYSTEM".equalsIgnoreCase(configuredTimeZoneOnServer)) {configuredTimeZoneOnServer = getServerVariable("system_time_zone");}String canonicalTimezone = getPropertySet().getStringReadableProperty(PropertyDefinitions.PNAME_serverTimezone).getValue();if (configuredTimeZoneOnServer != null) {// user can override this with driver properties, so don't detect if that's the caseif (canonicalTimezone == null || StringUtils.isEmptyOrWhitespaceOnly(canonicalTimezone)) {try {canonicalTimezone = TimeUtil.getCanonicalTimezone(configuredTimeZoneOnServer, getExceptionInterceptor());} catch (IllegalArgumentException iae) {throw ExceptionFactory.createException(WrongArgumentException.class, iae.getMessage(), getExceptionInterceptor());}}}if (canonicalTimezone != null && canonicalTimezone.length() > 0) {this.serverTimezoneTZ = TimeZone.getTimeZone(canonicalTimezone);// The Calendar class has the behavior of mapping unknown timezones to 'GMT' instead of throwing an exception, so we must check for this...if (!canonicalTimezone.equalsIgnoreCase("GMT")&& this.serverTimezoneTZ.getID().equals("GMT")) {throw ...}}this.defaultTimeZone = this.serverTimezoneTZ; }追蹤代碼可知，當 MySQL 的?time_zone?值為?SYSTEM?時，會取?system_time_zone?值作為協調時區。
讓我們登錄到 MySQL 服務器驗證這兩個值：
mysql> show variables like '%time_zone%'; +------------------+--------+ | Variable_name | Value | +------------------+--------+ | system_time_zone | CST | | time_zone | SYSTEM | +------------------+--------+ 2 rows in set (0.00 sec)重點在這里！若?String configuredTimeZoneOnServer?得到的是?CST?那么 Java 會誤以為這是?CST -0500?，因此?TimeZone.getTimeZone(canonicalTimezone)?會給出錯誤的時區信息。
?debug variables
如圖所示，本機默認時區是?Asia/Shanghai +0800?，誤認為服務器時區為?CST -0500?，實際上服務器是?CST +0800?。
我們會想到，即便時區有誤解，如果 Timestamp 是以 long 表示的時間戳傳輸，也不會出現問題，下面讓我們追蹤到?com.mysql.cj.jdbc.PreparedStatement.setTimestamp()?。
public void setTimestamp(int parameterIndex, Timestamp x) throws java.sql.SQLException {synchronized (checkClosed().getConnectionMutex()) {setTimestampInternal(parameterIndex, x, this.session.getDefaultTimeZone());} }注意到這里?this.session.getDefaultTimeZone()?得到的是剛才那個?CST -0500?。
private void setTimestampInternal(int parameterIndex, Timestamp x, TimeZone tz) throws SQLException {if (x == null) {setNull(parameterIndex, MysqlType.TIMESTAMP);} else {if (!this.sendFractionalSeconds.getValue()) {x = TimeUtil.truncateFractionalSeconds(x);}this.parameterTypes[parameterIndex - 1 + getParameterIndexOffset()] = MysqlType.TIMESTAMP;if (this.tsdf == null) {this.tsdf = new SimpleDateFormat("''yyyy-MM-dd HH:mm:ss", Locale.US);}this.tsdf.setTimeZone(tz);StringBuffer buf = new StringBuffer();buf.append(this.tsdf.format(x));if (this.session.serverSupportsFracSecs()) {buf.append('.');buf.append(TimeUtil.formatNanos(x.getNanos(), true));}buf.append('\'');setInternal(parameterIndex, buf.toString());} }原來 Timestamp 被轉換為會話時區的時間字符串了。問題到此已然明晰：
最終結果相差 13 個小時！如果處在冬令時還會相差 14 個小時！
解決方案
解決辦法也很簡單，明確指定 MySQL 數據庫的時區，不使用引發誤解的?CST?：
mysql> set global time_zone = '+08:00'; Query OK, 0 rows affected (0.00 sec)mysql> set time_zone = '+08:00'; Query OK, 0 rows affected (0.00 sec)或者修改?my.cnf?文件，在?[mysqld]?節下增加?default-time-zone = '+08:00'?。
修改時區操作影響深遠，需要重啟 MySQL 服務器，建議在維護時間進行。
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另一份解決方案:?
? ? ? ?最近遇到了一個問題，java從mysql從讀出的時間與本地時間有14個小時的時間差，經查證、測試解決了此問題，在此總結一下：
?
一、使用mysql-connector-java 6.x版本驅動需要做如下配置：
1、引入pom
| 1 2 3 4 5 | <dependency> ??<groupId>mysql</groupId> ??<artifactId>mysql-connector-java</artifactId> ??<version>6.0.6</version> </dependency> |
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2、設置jdbc連接、驅動
| 1 2 3 | jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&serverTimezone=UTC&characterEncoding=utf-8&allowMultiQueries=true com.mysql.cj.jdbc.Driver |
?
?
二、設置mysql數據時區
1、查看mysql時區
| 1 | show?variables?like?"%time_zone%" |
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2、修改mysql時區
（1）方法一
| 1 2 3 | set?global?time_zone?=?'+8:00';?##修改mysql全局時區為北京時間，即我們所在的東8區 set?time_zone?=?'+8:00';?##修改當前會話時區 flush?privileges;?#立即生效 |
（2）方法二、通過修改my.cnf配置文件來修改時區
| 1 2 3 | #?vim?/etc/my.cnf?##在[mysqld]區域中加上 default-time_zone?=?'+8:00' #?/etc/init.d/mysqld?restart?##重啟mysql使新時區生效 |
?
三、分析時區設置問題
? ? ? ?通過上面的設置，我們把mysql數據庫的時區設置成了中國的時區‘utc+8’，而serverTimezone=UTC設置的是utc時區，兩者不同，所以會發現從數據庫讀出的時間與本地時間差幾個小時。要解決這個問題，需要讓serverTimezone的設置與數據庫的時區保持一致。我們可以選擇修改serverTimezone的設置為serverTimezone=Asia/Shanghai，或者修改數據庫的時區為‘+0:00’。
?
四、serverTimezone支持的值說明
1、utc時區：serverTimezone=UTC
2、中國時區：serverTimezone=GMT%2B8（GMT+8這種方式支持全部時區，通過修改最后的數字實現，不過%2B不能寫成+）
3、查看官方源碼，可以看到serverTimezone支持的相關設置如下，如：中國的時區可設置為：serverTimezone=Asia/Shanghai
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527 528 529 530 531 | #Windows?Zones #Mon?Sep?28?16:41:59?WEST?2015 AUS\?Central\?Daylight\?Time=Australia/Darwin AUS\?Central\?Standard\?Time=Australia/Darwin AUS\?Eastern\?Daylight\?Time=Australia/Sydney AUS\?Eastern\?Standard\?Time=Australia/Sydney Afghanistan\?Daylight\?Time=Asia/Kabul Afghanistan\?Standard\?Time=Asia/Kabul Alaskan\?Daylight\?Time=America/Anchorage Alaskan\?Standard\?Time=America/Anchorage Arab\?Daylight\?Time=Asia/Riyadh Arab\?Standard\?Time=Asia/Riyadh Arabian\?Daylight\?Time=Asia/Dubai Arabian\?Standard\?Time=Asia/Dubai Arabic\?Daylight\?Time=Asia/Baghdad Arabic\?Standard\?Time=Asia/Baghdad Argentina\?Daylight\?Time=America/Buenos_Aires Argentina\?Standard\?Time=America/Buenos_Aires Atlantic\?Daylight\?Time=America/Halifax Atlantic\?Standard\?Time=America/Halifax Azerbaijan\?Daylight\?Time=Asia/Baku Azerbaijan\?Standard\?Time=Asia/Baku Azores\?Daylight\?Time=Atlantic/Azores Azores\?Standard\?Time=Atlantic/Azores Bahia\?Daylight\?Time=America/Bahia Bahia\?Standard\?Time=America/Bahia Bangladesh\?Daylight\?Time=Asia/Dhaka Bangladesh\?Standard\?Time=Asia/Dhaka Belarus\?Daylight\?Time=Europe/Minsk Belarus\?Standard\?Time=Europe/Minsk Canada\?Central\?Daylight\?Time=America/Regina Canada\?Central\?Standard\?Time=America/Regina Cape\?Verde\?Daylight\?Time=Atlantic/Cape_Verde Cape\?Verde\?Standard\?Time=Atlantic/Cape_Verde Caucasus\?Daylight\?Time=Asia/Yerevan Caucasus\?Standard\?Time=Asia/Yerevan Cen.\?Australia\?Daylight\?Time=Australia/Adelaide Cen.\?Australia\?Standard\?Time=Australia/Adelaide Central\?America\?Daylight\?Time=America/Guatemala Central\?America\?Standard\?Time=America/Guatemala Central\?Asia\?Daylight\?Time=Asia/Almaty Central\?Asia\?Standard\?Time=Asia/Almaty Central\?Brazilian\?Daylight\?Time=America/Cuiaba Central\?Brazilian\?Standard\?Time=America/Cuiaba Central\?Daylight\?Time=America/Chicago Central\?Daylight\?Time\?(Mexico)=America/Mexico_City Central\?Europe\?Daylight\?Time=Europe/Budapest Central\?Europe\?Standard\?Time=Europe/Budapest Central\?European\?Daylight\?Time=Europe/Warsaw Central\?European\?Standard\?Time=Europe/Warsaw Central\?Pacific\?Daylight\?Time=Pacific/Guadalcanal Central\?Pacific\?Standard\?Time=Pacific/Guadalcanal Central\?Standard\?Time=America/Chicago Central\?Standard\?Time\?(Mexico)=America/Mexico_City China\?Daylight\?Time=Asia/Shanghai China\?Standard\?Time=Asia/Shanghai Dateline\?Daylight\?Time=Etc/GMT+12 Dateline\?Standard\?Time=Etc/GMT+12 E.\?Africa\?Daylight\?Time=Africa/Nairobi E.\?Africa\?Standard\?Time=Africa/Nairobi E.\?Australia\?Daylight\?Time=Australia/Brisbane E.\?Australia\?Standard\?Time=Australia/Brisbane E.\?South\?America\?Daylight\?Time=America/Sao_Paulo E.\?South\?America\?Standard\?Time=America/Sao_Paulo Eastern\?Daylight\?Time=America/New_York Eastern\?Daylight\?Time\?(Mexico)=America/Cancun Eastern\?Standard\?Time=America/New_York Eastern\?Standard\?Time\?(Mexico)=America/Cancun Egypt\?Daylight\?Time=Africa/Cairo Egypt\?Standard\?Time=Africa/Cairo Ekaterinburg\?Daylight\?Time=Asia/Yekaterinburg Ekaterinburg\?Standard\?Time=Asia/Yekaterinburg FLE\?Daylight\?Time=Europe/Kiev FLE\?Standard\?Time=Europe/Kiev Fiji\?Daylight\?Time=Pacific/Fiji Fiji\?Standard\?Time=Pacific/Fiji GMT\?Daylight\?Time=Europe/London GMT\?Standard\?Time=Europe/London GTB\?Daylight\?Time=Europe/Bucharest GTB\?Standard\?Time=Europe/Bucharest Georgian\?Daylight\?Time=Asia/Tbilisi Georgian\?Standard\?Time=Asia/Tbilisi Greenland\?Daylight\?Time=America/Godthab Greenland\?Standard\?Time=America/Godthab Greenwich\?Daylight\?Time=Atlantic/Reykjavik Greenwich\?Standard\?Time=Atlantic/Reykjavik Hawaiian\?Daylight\?Time=Pacific/Honolulu Hawaiian\?Standard\?Time=Pacific/Honolulu India\?Daylight\?Time=Asia/Calcutta India\?Standard\?Time=Asia/Calcutta Iran\?Daylight\?Time=Asia/Tehran Iran\?Standard\?Time=Asia/Tehran Israel\?Daylight\?Time=Asia/Jerusalem Israel\?Standard\?Time=Asia/Jerusalem Jordan\?Daylight\?Time=Asia/Amman Jordan\?Standard\?Time=Asia/Amman Kaliningrad\?Daylight\?Time=Europe/Kaliningrad Kaliningrad\?Standard\?Time=Europe/Kaliningrad Korea\?Daylight\?Time=Asia/Seoul Korea\?Standard\?Time=Asia/Seoul Libya\?Daylight\?Time=Africa/Tripoli Libya\?Standard\?Time=Africa/Tripoli Line\?Islands\?Daylight\?Time=Pacific/Kiritimati Line\?Islands\?Standard\?Time=Pacific/Kiritimati Magadan\?Daylight\?Time=Asia/Magadan Magadan\?Standard\?Time=Asia/Magadan Mauritius\?Daylight\?Time=Indian/Mauritius Mauritius\?Standard\?Time=Indian/Mauritius Middle\?East\?Daylight\?Time=Asia/Beirut Middle\?East\?Standard\?Time=Asia/Beirut Montevideo\?Daylight\?Time=America/Montevideo Montevideo\?Standard\?Time=America/Montevideo Morocco\?Daylight\?Time=Africa/Casablanca Morocco\?Standard\?Time=Africa/Casablanca Mountain\?Daylight\?Time=America/Denver Mountain\?Daylight\?Time\?(Mexico)=America/Chihuahua Mountain\?Standard\?Time=America/Denver Mountain\?Standard\?Time\?(Mexico)=America/Chihuahua Myanmar\?Daylight\?Time=Asia/Rangoon Myanmar\?Standard\?Time=Asia/Rangoon N.\?Central\?Asia\?Daylight\?Time=Asia/Novosibirsk N.\?Central\?Asia\?Standard\?Time=Asia/Novosibirsk Namibia\?Daylight\?Time=Africa/Windhoek Namibia\?Standard\?Time=Africa/Windhoek Nepal\?Daylight\?Time=Asia/Katmandu Nepal\?Standard\?Time=Asia/Katmandu New\?Zealand\?Daylight\?Time=Pacific/Auckland New\?Zealand\?Standard\?Time=Pacific/Auckland Newfoundland\?Daylight\?Time=America/St_Johns Newfoundland\?Standard\?Time=America/St_Johns North\?Asia\?Daylight\?Time=Asia/Krasnoyarsk North\?Asia\?East\?Daylight\?Time=Asia/Irkutsk North\?Asia\?East\?Standard\?Time=Asia/Irkutsk North\?Asia\?Standard\?Time=Asia/Krasnoyarsk Pacific\?Daylight\?Time=America/Los_Angeles Pacific\?Daylight\?Time\?(Mexico)=America/Santa_Isabel Pacific\?SA\?Daylight\?Time=America/Santiago Pacific\?SA\?Standard\?Time=America/Santiago Pacific\?Standard\?Time=America/Los_Angeles Pacific\?Standard\?Time\?(Mexico)=America/Santa_Isabel Pakistan\?Daylight\?Time=Asia/Karachi Pakistan\?Standard\?Time=Asia/Karachi Paraguay\?Daylight\?Time=America/Asuncion Paraguay\?Standard\?Time=America/Asuncion Romance\?Daylight\?Time=Europe/Paris Romance\?Standard\?Time=Europe/Paris Russia\?Time\?Zone\?10=Asia/Srednekolymsk Russia\?Time\?Zone\?11=Asia/Kamchatka Russia\?Time\?Zone\?3=Europe/Samara Russian\?Daylight\?Time=Europe/Moscow Russian\?Standard\?Time=Europe/Moscow SA\?Eastern\?Daylight\?Time=America/Cayenne SA\?Eastern\?Standard\?Time=America/Cayenne SA\?Pacific\?Daylight\?Time=America/Bogota SA\?Pacific\?Standard\?Time=America/Bogota SA\?Western\?Daylight\?Time=America/La_Paz SA\?Western\?Standard\?Time=America/La_Paz SE\?Asia\?Daylight\?Time=Asia/Bangkok SE\?Asia\?Standard\?Time=Asia/Bangkok Samoa\?Daylight\?Time=Pacific/Apia Samoa\?Standard\?Time=Pacific/Apia Singapore\?Daylight\?Time=Asia/Singapore Singapore\?Standard\?Time=Asia/Singapore South\?Africa\?Daylight\?Time=Africa/Johannesburg South\?Africa\?Standard\?Time=Africa/Johannesburg Sri\?Lanka\?Daylight\?Time=Asia/Colombo Sri\?Lanka\?Standard\?Time=Asia/Colombo Syria\?Daylight\?Time=Asia/Damascus Syria\?Standard\?Time=Asia/Damascus Taipei\?Daylight\?Time=Asia/Taipei Taipei\?Standard\?Time=Asia/Taipei Tasmania\?Daylight\?Time=Australia/Hobart Tasmania\?Standard\?Time=Australia/Hobart Tokyo\?Daylight\?Time=Asia/Tokyo Tokyo\?Standard\?Time=Asia/Tokyo Tonga\?Daylight\?Time=Pacific/Tongatapu Tonga\?Standard\?Time=Pacific/Tongatapu Turkey\?Daylight\?Time=Europe/Istanbul Turkey\?Standard\?Time=Europe/Istanbul US\?Eastern\?Daylight\?Time=America/Indianapolis US\?Eastern\?Standard\?Time=America/Indianapolis US\?Mountain\?Daylight\?Time=America/Phoenix US\?Mountain\?Standard\?Time=America/Phoenix UTC=Etc/GMT UTC+12=Etc/GMT-12 UTC-02=Etc/GMT+2 UTC-11=Etc/GMT+11 Ulaanbaatar\?Daylight\?Time=Asia/Ulaanbaatar Ulaanbaatar\?Standard\?Time=Asia/Ulaanbaatar Venezuela\?Daylight\?Time=America/Caracas Venezuela\?Standard\?Time=America/Caracas Vladivostok\?Daylight\?Time=Asia/Vladivostok Vladivostok\?Standard\?Time=Asia/Vladivostok W.\?Australia\?Daylight\?Time=Australia/Perth W.\?Australia\?Standard\?Time=Australia/Perth W.\?Central\?Africa\?Daylight\?Time=Africa/Lagos W.\?Central\?Africa\?Standard\?Time=Africa/Lagos W.\?Europe\?Daylight\?Time=Europe/Berlin W.\?Europe\?Standard\?Time=Europe/Berlin West\?Asia\?Daylight\?Time=Asia/Tashkent West\?Asia\?Standard\?Time=Asia/Tashkent West\?Pacific\?Daylight\?Time=Pacific/Port_Moresby West\?Pacific\?Standard\?Time=Pacific/Port_Moresby Yakutsk\?Daylight\?Time=Asia/Yakutsk Yakutsk\?Standard\?Time=Asia/Yakutsk #Linked?Time?Zones?alias #Mon?Sep?28?16:41:59?WEST?2015 Africa/Addis_Ababa=Africa/Nairobi Africa/Asmara=Africa/Nairobi Africa/Asmera=Africa/Nairobi Africa/Bamako=Africa/Abidjan Africa/Bangui=Africa/Lagos Africa/Banjul=Africa/Abidjan Africa/Blantyre=Africa/Maputo Africa/Brazzaville=Africa/Lagos Africa/Bujumbura=Africa/Maputo Africa/Conakry=Africa/Abidjan Africa/Dakar=Africa/Abidjan Africa/Dar_es_Salaam=Africa/Nairobi Africa/Djibouti=Africa/Nairobi Africa/Douala=Africa/Lagos Africa/Freetown=Africa/Abidjan Africa/Gaborone=Africa/Maputo Africa/Harare=Africa/Maputo Africa/Juba=Africa/Khartoum Africa/Kampala=Africa/Nairobi Africa/Kigali=Africa/Maputo Africa/Kinshasa=Africa/Lagos Africa/Libreville=Africa/Lagos Africa/Lome=Africa/Abidjan Africa/Luanda=Africa/Lagos Africa/Lubumbashi=Africa/Maputo Africa/Lusaka=Africa/Maputo Africa/Malabo=Africa/Lagos Africa/Maseru=Africa/Johannesburg Africa/Mbabane=Africa/Johannesburg Africa/Mogadishu=Africa/Nairobi Africa/Niamey=Africa/Lagos Africa/Nouakchott=Africa/Abidjan Africa/Ouagadougou=Africa/Abidjan Africa/Porto-Novo=Africa/Lagos Africa/Sao_Tome=Africa/Abidjan Africa/Timbuktu=Africa/Abidjan America/Anguilla=America/Port_of_Spain America/Antigua=America/Port_of_Spain America/Argentina/ComodRivadavia=America/Argentina/Catamarca America/Aruba=America/Curacao America/Atka=America/Adak America/Buenos_Aires=America/Argentina/Buenos_Aires America/Catamarca=America/Argentina/Catamarca America/Coral_Harbour=America/Atikokan America/Cordoba=America/Argentina/Cordoba America/Dominica=America/Port_of_Spain America/Ensenada=America/Tijuana America/Fort_Wayne=America/Indiana/Indianapolis America/Grenada=America/Port_of_Spain America/Guadeloupe=America/Port_of_Spain America/Indianapolis=America/Indiana/Indianapolis America/Jujuy=America/Argentina/Jujuy America/Knox_IN=America/Indiana/Knox America/Kralendijk=America/Curacao America/Louisville=America/Kentucky/Louisville America/Lower_Princes=America/Curacao America/Marigot=America/Port_of_Spain America/Mendoza=America/Argentina/Mendoza America/Montreal=America/Toronto America/Montserrat=America/Port_of_Spain America/Porto_Acre=America/Rio_Branco America/Rosario=America/Argentina/Cordoba America/Shiprock=America/Denver America/St_Barthelemy=America/Port_of_Spain America/St_Kitts=America/Port_of_Spain America/St_Lucia=America/Port_of_Spain America/St_Thomas=America/Port_of_Spain America/St_Vincent=America/Port_of_Spain America/Tortola=America/Port_of_Spain America/Virgin=America/Port_of_Spain Antarctica/McMurdo=Pacific/Auckland Antarctica/South_Pole=Pacific/Auckland Arctic/Longyearbyen=Europe/Oslo Asia/Aden=Asia/Riyadh Asia/Ashkhabad=Asia/Ashgabat Asia/Bahrain=Asia/Qatar Asia/Calcutta=Asia/Kolkata Asia/Chongqing=Asia/Shanghai Asia/Chungking=Asia/Shanghai Asia/Dacca=Asia/Dhaka Asia/Harbin=Asia/Shanghai Asia/Istanbul=Europe/Istanbul Asia/Kashgar=Asia/Urumqi Asia/Katmandu=Asia/Kathmandu Asia/Kuwait=Asia/Riyadh Asia/Macao=Asia/Macau Asia/Muscat=Asia/Dubai Asia/Phnom_Penh=Asia/Bangkok Asia/Saigon=Asia/Ho_Chi_Minh Asia/Tel_Aviv=Asia/Jerusalem Asia/Thimbu=Asia/Thimphu Asia/Ujung_Pandang=Asia/Makassar Asia/Ulan_Bator=Asia/Ulaanbaatar Asia/Vientiane=Asia/Bangkok Atlantic/Faeroe=Atlantic/Faroe Atlantic/Jan_Mayen=Europe/Oslo Atlantic/St_Helena=Africa/Abidjan Australia/ACT=Australia/Sydney Australia/Canberra=Australia/Sydney Australia/LHI=Australia/Lord_Howe Australia/NSW=Australia/Sydney Australia/North=Australia/Darwin Australia/Queensland=Australia/Brisbane Australia/South=Australia/Adelaide Australia/Tasmania=Australia/Hobart Australia/Victoria=Australia/Melbourne Australia/West=Australia/Perth Australia/Yancowinna=Australia/Broken_Hill Brazil/Acre=America/Rio_Branco Brazil/DeNoronha=America/Noronha Brazil/East=America/Sao_Paulo Brazil/West=America/Manaus Canada/Atlantic=America/Halifax Canada/Central=America/Winnipeg Canada/East-Saskatchewan=America/Regina Canada/Eastern=America/Toronto Canada/Mountain=America/Edmonton Canada/Newfoundland=America/St_Johns Canada/Pacific=America/Vancouver Canada/Saskatchewan=America/Regina Canada/Yukon=America/Whitehorse Chile/Continental=America/Santiago Chile/EasterIsland=Pacific/Easter Cuba=America/Havana Egypt=Africa/Cairo Eire=Europe/Dublin Europe/Belfast=Europe/London Europe/Bratislava=Europe/Prague Europe/Busingen=Europe/Zurich Europe/Guernsey=Europe/London Europe/Isle_of_Man=Europe/London Europe/Jersey=Europe/London Europe/Ljubljana=Europe/Belgrade Europe/Mariehamn=Europe/Helsinki Europe/Nicosia=Asia/Nicosia Europe/Podgorica=Europe/Belgrade Europe/San_Marino=Europe/Rome Europe/Sarajevo=Europe/Belgrade Europe/Skopje=Europe/Belgrade Europe/Tiraspol=Europe/Chisinau Europe/Vaduz=Europe/Zurich Europe/Vatican=Europe/Rome Europe/Zagreb=Europe/Belgrade GB=Europe/London GB-Eire=Europe/London GMT+0=Etc/GMT GMT-0=Etc/GMT GMT0=Etc/GMT Greenwich=Etc/GMT Hongkong=Asia/Hong_Kong Iceland=Atlantic/Reykjavik Indian/Antananarivo=Africa/Nairobi Indian/Comoro=Africa/Nairobi Indian/Mayotte=Africa/Nairobi Iran=Asia/Tehran Israel=Asia/Jerusalem Jamaica=America/Jamaica Japan=Asia/Tokyo Kwajalein=Pacific/Kwajalein Libya=Africa/Tripoli Mexico/BajaNorte=America/Tijuana Mexico/BajaSur=America/Mazatlan Mexico/General=America/Mexico_City NZ=Pacific/Auckland NZ-CHAT=Pacific/Chatham Navajo=America/Denver PRC=Asia/Shanghai Pacific/Johnston=Pacific/Honolulu Pacific/Midway=Pacific/Pago_Pago Pacific/Ponape=Pacific/Pohnpei Pacific/Saipan=Pacific/Guam Pacific/Samoa=Pacific/Pago_Pago Pacific/Truk=Pacific/Chuuk Pacific/Yap=Pacific/Chuuk Poland=Europe/Warsaw Portugal=Europe/Lisbon ROC=Asia/Taipei ROK=Asia/Seoul Singapore=Asia/Singapore Turkey=Europe/Istanbul UCT=Etc/UCT US/Alaska=America/Anchorage US/Aleutian=America/Adak US/Arizona=America/Phoenix US/Central=America/Chicago US/East-Indiana=America/Indiana/Indianapolis US/Eastern=America/New_York US/Hawaii=Pacific/Honolulu US/Indiana-Starke=America/Indiana/Knox US/Michigan=America/Detroit US/Mountain=America/Denver US/Pacific=America/Los_Angeles US/Pacific-New=America/Los_Angeles US/Samoa=Pacific/Pago_Pago Universal=Etc/UTC W-SU=Europe/Moscow Zulu=Etc/UTC #Standard?(IANA)?abbreviations #Mon?Sep?28?16:41:59?WEST?2015 ACWST=Australia/Eucla AFT=Asia/Kabul ALMT=Asia/Almaty ANAT=Asia/Anadyr AZOST=Atlantic/Azores AZOT=Atlantic/Azores AZST=Asia/Baku AZT=Asia/Baku BDT=Asia/Dhaka BNT=Asia/Brunei BOT=America/La_Paz BRST=America/Sao_Paulo BTT=Asia/Thimphu CAT=Africa/Maputo CCT=Indian/Cocos CHADT=Pacific/Chatham CHAST=Pacific/Chatham CHOST=Asia/Choibalsan CHOT=Asia/Choibalsan CHUT=Pacific/Chuuk CKT=Pacific/Rarotonga COT=America/Bogota CVT=Atlantic/Cape_Verde CXT=Indian/Christmas ChST=Pacific/Guam DAVT=Antarctica/Davis DDUT=Antarctica/DumontDUrville EAST=Pacific/Easter ECT=America/Guayaquil EGST=America/Scoresbysund EGT=America/Scoresbysund FJST=Pacific/Fiji FJT=Pacific/Fiji FKST=Atlantic/Stanley FNT=America/Noronha GALT=Pacific/Galapagos GAMT=Pacific/Gambier GET=Asia/Tbilisi GFT=America/Cayenne GILT=Pacific/Tarawa GYT=America/Guyana HDT=America/Adak HKT=Asia/Hong_Kong HOVST=Asia/Hovd HOVT=Asia/Hovd IDT=Asia/Jerusalem IOT=Indian/Chagos IRST=Asia/Tehran JST=Asia/Tokyo KGT=Asia/Bishkek KOST=Pacific/Kosrae LHDT=Australia/Lord_Howe LHST=Australia/Lord_Howe LINT=Pacific/Kiritimati MAGT=Asia/Magadan MART=Pacific/Marquesas MAWT=Antarctica/Mawson MEST=MET MET=MET MIST=Antarctica/Macquarie MMT=Asia/Rangoon MUT=Indian/Mauritius MVT=Indian/Maldives NCT=Pacific/Noumea NDT=America/St_Johns NFT=Pacific/Norfolk NOVT=Asia/Novosibirsk NPT=Asia/Kathmandu NRT=Pacific/Nauru NST=America/St_Johns NUT=Pacific/Niue NZDT=Pacific/Auckland NZST=Pacific/Auckland OMST=Asia/Omsk ORAT=Asia/Oral PET=America/Lima PETT=Asia/Kamchatka PGT=Pacific/Port_Moresby PHOT=Pacific/Enderbury PHT=Asia/Manila PKT=Asia/Karachi PMDT=America/Miquelon PMST=America/Miquelon PONT=Pacific/Pohnpei PWT=Pacific/Palau PYST=America/Asuncion PYT=America/Asuncion QYZT=Asia/Qyzylorda RET=Indian/Reunion ROTT=Antarctica/Rothera SAKT=Asia/Sakhalin SAMT=Europe/Samara SAST=Africa/Johannesburg SBT=Pacific/Guadalcanal SCT=Indian/Mahe SGT=Asia/Singapore SRET=Asia/Srednekolymsk SRT=America/Paramaribo SST=Pacific/Pago_Pago SYOT=Antarctica/Syowa TAHT=Pacific/Tahiti TFT=Indian/Kerguelen TJT=Asia/Dushanbe TKT=Pacific/Fakaofo TLT=Asia/Dili TMT=Asia/Ashgabat TOT=Pacific/Tongatapu TVT=Pacific/Funafuti ULAST=Asia/Ulaanbaatar ULAT=Asia/Ulaanbaatar UYT=America/Montevideo VET=America/Caracas VOST=Antarctica/Vostok VUT=Pacific/Efate WAKT=Pacific/Wake WAST=Africa/Windhoek WFT=Pacific/Wallis WGST=America/Godthab WGT=America/Godthab WIT=Asia/Jayapura WITA=Asia/Makassar WSDT=Pacific/Apia WSST=Pacific/Apia XJT=Asia/Urumqi YEKT=Asia/Yekaterinburg |
以上內容在src\main\resources\com\mysql\cj\jdbc\util.TimeZoneMapping.properties，
= 后面的值為我們可以用來設置的值
本文出自 “星技傳閱” 博客，請務必保留此出處http://snowtiger.blog.51cto.com/12931578/1967441
轉載于:https://my.oschina.net/CasparLi/blog/1541902
總結
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