there is a problem in the WEB project, which requires the background to refresh and monitor the data in the database in real time. every time FLASK starts, it starts a thread to monitor the order placed by the customer and whether the order has been pai...
spring boot restTemplagte access https can be accessed normally on window, Ali centos access timed out the environmental background of the problems and what methods you have tried related codes restTemplate @Bean public RestTemplate restTemplate(O...
as the title at the beginning of a new project, when the front end uses a data-driven front-end framework, much of the front-end work depends on the back-end interface format. So you have to wait for background development, while the front end has nothi...
Open a project with vscode (the python plug-in has been installed and select interpreter has selected the correct pyenv environment), but the function of finding the definition is only valid for the modules of the project itself, and cannot be used ou...
set up the database in models in django, and there are only some fields after data migration. models.py from django.db import models class Users(models.Model): name = models.CharField(max_length=10,unique=True, verbose_name= ), password ...
there is data like this: I want to use aggregate to group group by p, and then count the sum of ac, cc in each province, which can be done. The question is: I want to count the total number of tc in each province (do not repeat)? For example, Fujia...
invalid listening in VUE ...
you need to count the sum of price and number by time grouping and take out the values of the first price and the last price in the group . I haven t been able to find the corresponding method for a long time. I hope you can guide me . ...