Spring boot uses jpa to operate MySQL InnoDB; for example: products; id; quantity; ; id=3211: I see the sql statement on the Internet is: SET AUTOCOMMIT=0; BEGIN WORK; SELECT quantity FROM products WHERE id=3 FOR UPDATE; UPDATE products SET quan...
problem description what lightweight routing framework is available at the front end that can be used separately and cached? is used like vue-router, but not with vue? I have written one myself, but I don t know how to cache between pages when mul...
after the php version was switched from 5.x to PHP7.x, phpmyadmin prompted "missing mcrypt extension. " Please check the PHP configuration. " under windows, the phpstudy environment is used ...
my requirement is to add properties to all the components under the card component, but I keep reporting errors. The code is as follows: : I have read a lot of materials, but I don t know how to solve it . ...
how to change the $arr array into the structure of $newArr $arr = [ [ id => 1 , name => a , attr => , val => 10 ], [ id => 1 , name ...
during the development of a Java Web project, if only a few files have been changed. If you want to redeploy to the server, it would be superfluous to pack it in full. but it is troublesome to copy files one by one and replace them one by one. is th...