Deprecated: Method ReflectionProperty::setAccessible() is deprecated since 8.5, as it has no effect since PHP 8.1 in /var/www/html/plugins/system/falangdriver/falangdriver.php on line 545

Deprecated: Using null as the key parameter for array_key_exists() is deprecated, use an empty string instead in /var/www/html/plugins/system/t4/src/t4/MVC/Router/T4.php on line 388
事件 - bluetooth蓝牙技术
bluetooth蓝牙技术

Events Calendar


Deprecated: Creation of dynamic property DefaultViewNavTableBarIconic::$transparentGif is deprecated in /var/www/html/components/com_jevents/views/default/helpers/defaultviewnavtablebariconic.php on line 19

Deprecated: Creation of dynamic property DefaultViewNavTableBarIconic::$Itemid is deprecated in /var/www/html/components/com_jevents/views/default/helpers/defaultviewnavtablebariconic.php on line 20

Deprecated: Creation of dynamic property DefaultViewNavTableBarIconic::$cat is deprecated in /var/www/html/components/com_jevents/views/default/helpers/defaultviewnavtablebariconic.php on line 21

Deprecated: Creation of dynamic property DefaultViewNavTableBarIconic::$task is deprecated in /var/www/html/components/com_jevents/views/default/helpers/defaultviewnavtablebariconic.php on line 22

Deprecated: Creation of dynamic property DefaultViewNavTableBarIconic::$iconstoshow is deprecated in /var/www/html/components/com_jevents/views/default/helpers/defaultviewnavtablebariconic.php on line 33
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Events for the week :
20 April 2026 - 26 April 2026
Monday
20 April
  • There are no events on this date
Tuesday
21 April
  • There are no events on this date
Wednesday
22 April
Thursday
23 April
Friday
24 April
  • 08:00am - 05:00pm  2026第19届北京国际汽车展览会 by  该 Email 地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。  ::  Exhibition{{Start Date:STARTDATE}}08:00amSunday 03 May 202605:00pm{} 
  • 08:00am - 05:00pm  2026第32届中国国际广播电视信息网络展览会 by  该 Email 地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。  ::  Exhibition{{Start Date:STARTDATE}}08:00amSaturday 25 April 202605:00pm{} 
  • 08:00am - 05:00pm  2026第十四届中国国际国防电子博览会(CIDEX) by  该 Email 地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。  ::  Exhibition{{Start Date:STARTDATE}}08:00amFriday 24 April 202605:00pm{} 
Saturday
25 April
  • 08:00am - 05:00pm  2026第19届北京国际汽车展览会 by  该 Email 地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。  ::  Exhibition{{Start Date:STARTDATE}}08:00amSunday 03 May 202605:00pm{} 
  • 08:00am - 05:00pm  2026第32届中国国际广播电视信息网络展览会 by  该 Email 地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。  ::  Exhibition{{Start Date:STARTDATE}}08:00amSaturday 25 April 202605:00pm{} 
Sunday
26 April
  • 08:00am - 05:00pm  2026第19届北京国际汽车展览会 by  该 Email 地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。  ::  Exhibition{{Start Date:STARTDATE}}08:00amSunday 03 May 202605:00pm{} 




Deprecated: Method ReflectionProperty::setAccessible() is deprecated since 8.5, as it has no effect since PHP 8.1 in /var/www/html/plugins/system/falangdriver/falangdriver.php on line 97

Deprecated: Method ReflectionProperty::setAccessible() is deprecated since 8.5, as it has no effect since PHP 8.1 in /var/www/html/plugins/system/falangdriver/falangdriver.php on line 97
mysqli object is already closed (500 Whoops, looks like something went wrong.)

Error

HTTP 500 Whoops, looks like something went wrong.

mysqli object is already closed

Exception

Error

in /var/www/html/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php (line 318)
  1. */
  2. public function disconnect()
  3. {
  4. // Close the connection.
  5. if (\is_callable([$this->connection, 'close'])) {
  6. $this->connection->close();
  7. }
  9. parent::disconnect();
  10. }
in /var/www/html/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php -> close (line 318)
  1. */
  2. public function disconnect()
  3. {
  4. // Close the connection.
  5. if (\is_callable([$this->connection, 'close'])) {
  6. $this->connection->close();
  7. }
  9. parent::disconnect();
  10. }
in /var/www/html/libraries/vendor/joomla/database/src/DatabaseDriver.php -> disconnect (line 495)
  1. *
  2. * @since 2.0.0
  3. */
  4. public function __destruct()
  5. {
  6. $this->disconnect();
  7. }
  9. /**
  10. * Alter database's character set.
  11. *
DatabaseDriver->__destruct()

Stack Trace

Error 
Error:
mysqli object is already closed

  at /var/www/html/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php:318
  at mysqli->close()
     (/var/www/html/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php:318)
  at Joomla\Database\Mysqli\MysqliDriver->disconnect()
     (/var/www/html/libraries/vendor/joomla/database/src/DatabaseDriver.php:495)
  at Joomla\Database\DatabaseDriver->__destruct()

Deprecated: Method ReflectionProperty::setAccessible() is deprecated since 8.5, as it has no effect since PHP 8.1 in /var/www/html/plugins/system/falangdriver/falangdriver.php on line 97

Deprecated: Method ReflectionProperty::setAccessible() is deprecated since 8.5, as it has no effect since PHP 8.1 in /var/www/html/plugins/system/falangdriver/falangdriver.php on line 97