In my last article about NAPI, I introduced how I converted a C library into a node addon as a novice. This article mainly conducts systematic study and practice on node addon. What are Addons Simply put, node.js is written in C++, so you can increase the capabilities of node through dynamic libraries (dll dylib). […]
Tag: add
javafx adds a graphical interface to the java terminal program without a graphical interface
This approach may be a general method for adding a graphical interface to headless programs. First of all, two threads must be opened, one to run the ui, and the other to run the java program to be transformed. The static class variables of the main program are used to exchange data between the ui […]
js and vue add watermark
Native js use <!DOCTYPE html> <html lang=”en”> <head> <meta charset=”UTF-8″> <meta http-equiv=”X-UA-Compatible” content=”IE=edge”> <meta name=”viewport” content=”width=device-width, initial-scale=1.0″> <title>Strategy for adding watermark in native JS</title> <!– quote watermark –> <script src=”./js/warterMarkJS.js”></script> <style> </style> </head> <body style=”height: 600px”> <!–Set watermark watermark container –> <div class=”elementdiv”></div> <script> //Set watermark name watermark(‘Shuixiangmuyu’, “SXMY”) </script> </body> </html> warterMarkJS.js /*watermark configuration*/ […]
About socket address multiplexing and port multiplexing technology and UDP concurrency
1. Socket quintuple linux: setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,(const void *) &reuse, sizeof(int)); setsockopt(fd, SOL_SOCKET, SO_REUSEPORT,(const void *) &reuse, sizeof(int)); windows: setsockopt(listenfd, SOL_SOCKET, SO_REUSEADDR,(const char*) &reuse, sizeof(int)); Socket is a system-level resource (different from process level and thread level, it is globally unique on this machine, https://zhuanlan.zhihu.com/p/612436510), which can be artificially bound to local ip and port, […]
JavaSwing cycle single ping network IP address in 5 seconds, add adaptive background image, etc.
Requirements: 6 AI cameras and 1 server network status monitoring The effect picture above is originally an adaptive background picture, but it is too cumbersome to calculate the coordinates according to the size of the window for a few buttons of single Ping IP. Simply frame the form directly, and encounter an error that ImageIO.read […]
Single sign-on 3: Add RBAC permission verification model function understanding and implementation demo
1. RBAC authority model RBAC (Role-Based Access Control) is a role-based access control model, which is used to manage user permissions and access control in the system. It clearly defines the relationship among users, roles and permissions to achieve flexible permission management and control. 1.1. The RBAC model mainly includes the following core concepts: 1. […]
Spring Boot integrated process engine Flowable (with source code address)
1. Import dependencies flowable depends on: <dependency> <groupId>org.flowable</groupId> <artifactId>flowable-spring-boot-starter</artifactId> <version>6.7.2</version> </dependency> pom.xml: <?xml version=”1.0″ encoding=”UTF-8″?> <project xmlns=”http://maven.apache.org/POM/4.0.0″ xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance” xsi:schemaLocation=”http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd”> <modelVersion>4.0.0</modelVersion> <groupId>org.example</groupId> <artifactId>flowable_study</artifactId> <version>1.0-SNAPSHOT</version> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.6.6</version> </parent> <properties> <maven.compiler.source>11</maven.compiler.source> <maven.compiler.target>11</maven.compiler.target> </properties> <dependencies> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>8.0.29</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid-spring-boot-starter</artifactId> <version>1.2.8</version> </dependency> <dependency> <groupId>org.flowable</groupId> <artifactId>flowable-spring-boot-starter</artifactId> <version>6.7.2</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>cn.hutool</groupId> […]
C# cad secondary development class library dialog box to add the frame interface to the class library
C# cad secondary development class library dialog box to add the frame interface to the class library using System; using System.Collections.Generic; using System. ComponentModel; using System.Data; using System. Drawing; using System. Linq; using System. Text; using System. Threading. Tasks; using System. Windows. Forms; namespace_19 dialog example { public partial class Form1 : Form { public […]
PaddleNLP: Conversational Bots Based on LLaMA and Vicuna
This article is from the AlStudio community boutique project, [click here] to view more boutique content >>> Introduction Using PaddleNLP and Vicuna to pre-train large language model parameters to implement LLaMA model-based conversational robots. PS. Please use the V100 32G or higher environment for this project and run it with the latest development version of […]
iptables add, delete, view, modify, and modify ports when docker is running
One, install and activate the firewall [root@linux ~]# /etc/init.d/iptables start When we use iptables to add rules and save them, these rules are stored on the disk in the form of files. Taking centos as an example, the file address is /etc/sysconfig/iptables. We can add and modify them through commands. To delete the rules, you […]