Detailed records of java and python calling matlab programs
Background
Regarding Java and Python calling matlab programs, there are many related articles on the Internet, but the quality is not good, and some prerequisites are not introduced. If you follow his steps, he succeeds, but you fail. You are very confused.I think it is difficult for us to search for something now because some people write ...
Posted by mikebr on Wed, 28 Dec 2022 03:31:29 +0300
RabbitMQ Day 1 Basics 4 RabbitMQ Working Mode 4.4 Topic Wildcard Mode & 4.5 Working Mode Summary
RabbitMQ
[Dark horse programmer RabbitMQ full set of tutorials, rabbitmq message middleware to actual combat]
Day 1 Basics
4 RabbitMQ working mode
4.4 Topic wildcard mode
4.4.1 Mode Description
look at the documentation
Compared with Direct, Topic type can route messages to different queues according to RoutingKey. It's just ...
Posted by scott532 on Sun, 25 Dec 2022 17:52:23 +0300
How threads in the thread pool are reused
Preface
I believe everyone knows the relationship between processes and threads. I won’t explain too much here. Since a process is composed of multiple threads, the thread pool is composed of several thread queues. The concurrency is relatively high. In some scenarios, we usually create a thread pool to perform tasks, instead of creating ...
Posted by cesarcesar on Sat, 24 Dec 2022 13:42:28 +0300
SpringBoot global exception handling
1. Types of exception handling
I roughly divide a request into three stages to handle global exceptions separately.
Before entering the Controller, for example, requesting an address that does not exist, 404 error.When executing @RequestMapping, before entering the logic processing stage. For example, the passed parameter type is wrong.When a ...
Posted by dpluth on Thu, 22 Dec 2022 20:27:24 +0300
Project (SpringBoot+MyBatis) -- login function implementation
User login function
First analyze the idea: when the user enters the user name and password to submit the data to the background database for query, if there is a corresponding user name and password, it means that the login is successful, and after successful login, it will jump to the home page of the system.
1. Login - persistence layer
P ...
Posted by Kulak on Thu, 22 Dec 2022 10:38:36 +0300
You must know JavaFile
The File object represents a path, which can be the path of a file or the path of a folderThis path can exist or not exist
File structure
method nameillustratepublic File(String pathname)Create a file object based on the file pathpublic File(String parent,String child)Creates a file object from a parent pathname string and a child pathname st ...
Posted by Idri on Thu, 22 Dec 2022 08:47:18 +0300
Design Pattern Principles - Interface Segregation Principle
an official definition
The Interface Segregation Principle (Interface Segregation Principle), also known as the ISP principle, is officially defined as:
Clients should not be forced to depend upon interfaces that they don't use. (client should not depend on interfaces it doesn't need)The dependency of one class to another one shou ...
Posted by paggard on Tue, 20 Dec 2022 01:28:38 +0300
PriorityQueue source code analysis
For reprinting, please indicate the source in the form of a link:
This article is from: 103style's blog
base on jdk_1.8.0_77Table of contentsIntroduction to PriorityQueuePriorityQueue exampleIntroduction to PriorityQueue's constants and member variablesConstructor of PriorityQueuePriorityQueue related functionssummaryIntroduction t ...
Posted by Idri on Mon, 19 Dec 2022 09:02:05 +0300
Spring/SpringBoot common annotation summary
1.Spring Bean related
1.1.@Autowired
Objects are automatically imported into classes, and the injected classes are also managed by the Spring container. For example: the Service class is injected into the Controller class.
@Service
public class UserService {
......
}
@RestController
@RequestMapping("/users")
public class UserController {
...
Posted by rjs34 on Fri, 16 Dec 2022 02:42:50 +0300
oss storage usage
Alibaba Cloud provides 5 ways to use oss storage, including console, command line, graphical management tool ossbrowser, SDK, and REST API; here are some descriptions of the commonly used command line and javasdk, and the others are not detailed one by one. Note, if you are interested, you can go to the official website to see related documents ...
Posted by newbie9999 on Wed, 14 Dec 2022 07:42:55 +0300