Php 0秒）

回到用户会话中，我仍然无法加载该文件

mysql> select hex(LOAD_FILE('/home/jlam/code/projectName/doc/filesForTesting/images/imageTest01.jpg')); +-------------------------------------------------------------------------------------------------------------+ | hex(LOAD_FILE('/home/jlam/code/projectName/doc/filesForTesting/images/imageTest01.jpg')) | +-------------------------------------------------------------------------------------------------------------+ | NULL | +-------------------------------------------------------------------------------------------------------------+ 1 row in set (0.00 sec) mysql>选择hex（加载文件（'/home/jlam/code/projectName/doc/filesForTesting/images/imageTest01.jpg'）； +-------------------------------------------------------------------------------------------------------------+ |十六进制（加载文件（'/home/jlam/code/projectName/doc/filesForTesting/images/imageTest01.jpg'））| +-------------------------------------------------------------------------------------------------------------+ |空的| +-------------------------------------------------------------------------------------------------------------+ 一行一组（0.00秒） …但如果我注销并重新登录：

mysql> exit Bye 16:40:14 (getImages) ~/code/projectName/doc/filesForTesting/images$ mysql -u eventCal -p eventCal Enter password: mysql> select hex(LOAD_FILE('/home/jlam/code/projectName/doc/filesForTesting/images/imageTest01.jpg')); +-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | hex(LOAD_FILE('/home/jlam/code/projectName/doc/filesForTesting/images/imageTest01.jpg')) +-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | FFD8FFE1001845786966000049492A00080000000000000000000000FFEC00114475636B7900010004000000500000FFE10407687474703A2F2F6E732E61646F62652E636F6D2F7861702F312E302F003C3F787061636B657420626567696E3D22EFBBBF222069643D2257354D304D7043656869487 +-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- mysql>退出 拜伊 16:40:14（getImages）~/code/projectName/doc/filesForTesting/images$mysql-u eventCal-p eventCal 输入密码： mysql>选择hex（加载文件（'/home/jlam/code/projectName/doc/filesForTesting/images/imageTest01.jpg'）； +-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |十六进制（加载文件（'/home/jlam/code/projectName/doc/filesForTesting/images/imageTest01.jpg'）） +-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |FFD8FFE1000184578696600004942A0000800000000000000000000000000FFEC00114475636B790004000000500000FFE10407687474703A2F2F6E732E61646F62652E636F6D2F7861702F312E3302F003C3F787061636B657420626567696E3D22EFBBF222069643D22354D304D70436568487 +--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

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请显示用于运行查询的完整代码这是完整代码（测试代码），您是否已授予用户权限？授予文件。对我来说；另外，我听说LOAD_文件是一个仅限Windows的函数，mot Linux:只获得“使用”权限（共享主机），而解决方法很难看，我发现您不必将图像放在/var/lib/mysql/all_images中。我使用了/var/lib/mysql/foo_图像，效果很好。多亏了这一点，我让我的数据库模式安装程序（一个Debian包）创建/var/lib/mysql/foo_映像，用映像文件填充它，然后在我的POSTNST中运行充满LOAD_文件的SQL，然后删除/var/lib/mysql/foo_映像。最终的结果是完全干净的，破坏MySQL安装的可能性最小，中间阶段也不太糟糕。我很满意。其他目录失败的原因是apparmor块。这个技巧在Ubuntu14.04 LTS上也适用于我。也就是说，将您的文件放在

/var/lib/mysql/

目录下，然后使用相对的文件名，例如，

LOAD_file（'foobar.txt'）

将加载

/var/lib/mysql/foobar.txt

。此外，在ubuntu linux和其他地方，apparmor可能会干扰。 16:38:09 (getImages) ~/code/projectName/doc/filesForTesting/images$ mysql -u eventCal -p eventCal Enter password: mysql> show grants; +-----------------------------------------------------------------------------------------------------------------+ | Grants for eventCal@localhost | +-----------------------------------------------------------------------------------------------------------------+ | GRANT USAGE ON *.* TO 'eventCal'@'localhost' IDENTIFIED BY PASSWORD '*xxxxx' | | GRANT ALL PRIVILEGES ON `tmp`.* TO 'eventCal'@'localhost' | | GRANT ALL PRIVILEGES ON `eventCalTesting`.* TO 'eventCal'@'localhost' | | GRANT ALL PRIVILEGES ON `eventCal`.* TO 'eventCal'@'localhost' | | GRANT ALL PRIVILEGES ON `eventCal_categoryMigration`.* TO 'eventCal'@'localhost' | +-----------------------------------------------------------------------------------------------------------------+ 5 rows in set (0.00 sec) mysql> select hex(LOAD_FILE('/home/jlam/code/projectName/doc/filesForTesting/images/imageTest01.jpg')); +-------------------------------------------------------------------------------------------------------------+ | hex(LOAD_FILE('/home/jlam/code/projectName/doc/filesForTesting/images/imageTest01.jpg')) | +-------------------------------------------------------------------------------------------------------------+ | NULL | +-------------------------------------------------------------------------------------------------------------+ 1 row in set (0.00 sec) mysql> grant file ON *.* to eventCal@localhost; Query OK, 0 rows affected (0.00 sec) mysql> flush privileges; Query OK, 0 rows affected (0.00 sec) mysql> select hex(LOAD_FILE('/home/jlam/code/projectName/doc/filesForTesting/images/imageTest01.jpg')); +-------------------------------------------------------------------------------------------------------------+ | hex(LOAD_FILE('/home/jlam/code/projectName/doc/filesForTesting/images/imageTest01.jpg')) | +-------------------------------------------------------------------------------------------------------------+ | NULL | +-------------------------------------------------------------------------------------------------------------+ 1 row in set (0.00 sec) mysql> exit Bye 16:40:14 (getImages) ~/code/projectName/doc/filesForTesting/images$ mysql -u eventCal -p eventCal Enter password: mysql> select hex(LOAD_FILE('/home/jlam/code/projectName/doc/filesForTesting/images/imageTest01.jpg')); +-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | hex(LOAD_FILE('/home/jlam/code/projectName/doc/filesForTesting/images/imageTest01.jpg')) +-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | FFD8FFE1001845786966000049492A00080000000000000000000000FFEC00114475636B7900010004000000500000FFE10407687474703A2F2F6E732E61646F62652E636F6D2F7861702F312E302F003C3F787061636B657420626567696E3D22EFBBBF222069643D2257354D304D7043656869487 +--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------