This article is introduced to you by the go language tutorial column. The theme is about the pitfalls encountered in Gin installation. I hope it will be helpful to friends in need!
Gin initial installation
1. Install the official document executiongo get -u github.com/gin-gonic/gin
Because I can't circumvent the wall, Baidu said to use gopm to solve it. Friends in the group said that this kind of experiment has long been outdated, and now they use go mod to solve it.
So start go mod
go env -w GOBIN=/Users/youdi/go/bin go env -w GO111MODULE=on go env -w GOPROXY=https://goproxy.cn,direct // 使用七牛云的
Use go mod to manage a new project
mkdir Gone cd Gone go mod init Gone
Check the go.mod file
module Gone go 1.16
Once the go.mod file is created , its content will be fully controlled by the go toolchain. The go toolchain will modify and maintain the go.mod file when various commands are executed, such as go get, go build, go mod, etc.
go.mod provides four commands: module, require, replace and exclude
-
module
The statement specifies the name (path) of the package -
require
The dependency module specified by the statement -
replace
The statement can replace the dependency module -
exclude
The statement can ignore the dependency Item module
package mainimport ( "github.com/gin-gonic/gin")func main() { r := gin.Default() r.GET("/ping", func(c *gin.Context) { c.JSON(200, gin.H{ "message": "pong", }) }) r.Run() // listen and serve on 0.0.0.0:8080 (for windows "localhost:8080")}
Execute go run main.go. When running the code, you will find that go mod will automatically find dependencies and automatically download
The result is an error
main.go:3:8: no required module provides package github.com/gin-gonic/gin; to add it: go get github.com/gin-gonic/gin
Execute: go mod edit -require github .com/gin-gonic/gin@latest Solution, specify the Gin version
Run go run main.go again and report an error
go: github.com/gin-gonic/gin@v1.7.4: missing go.sum entry; to add it: go mod download github.com/gin-gonic/gin
Then execute go mod tidy and execute go run main.go again. Finally it runs.
For more golang related knowledge, please visit golangtutorial column!
The above is the detailed content of Avoid the trap! Pitfalls encountered during Gin installation. For more information, please follow other related articles on the PHP Chinese website!

Golangisidealforbuildingscalablesystemsduetoitsefficiencyandconcurrency,whilePythonexcelsinquickscriptinganddataanalysisduetoitssimplicityandvastecosystem.Golang'sdesignencouragesclean,readablecodeanditsgoroutinesenableefficientconcurrentoperations,t

Golang is better than C in concurrency, while C is better than Golang in raw speed. 1) Golang achieves efficient concurrency through goroutine and channel, which is suitable for handling a large number of concurrent tasks. 2)C Through compiler optimization and standard library, it provides high performance close to hardware, suitable for applications that require extreme optimization.

Reasons for choosing Golang include: 1) high concurrency performance, 2) static type system, 3) garbage collection mechanism, 4) rich standard libraries and ecosystems, which make it an ideal choice for developing efficient and reliable software.

Golang is suitable for rapid development and concurrent scenarios, and C is suitable for scenarios where extreme performance and low-level control are required. 1) Golang improves performance through garbage collection and concurrency mechanisms, and is suitable for high-concurrency Web service development. 2) C achieves the ultimate performance through manual memory management and compiler optimization, and is suitable for embedded system development.

Golang performs better in compilation time and concurrent processing, while C has more advantages in running speed and memory management. 1.Golang has fast compilation speed and is suitable for rapid development. 2.C runs fast and is suitable for performance-critical applications. 3. Golang is simple and efficient in concurrent processing, suitable for concurrent programming. 4.C Manual memory management provides higher performance, but increases development complexity.

Golang's application in web services and system programming is mainly reflected in its simplicity, efficiency and concurrency. 1) In web services, Golang supports the creation of high-performance web applications and APIs through powerful HTTP libraries and concurrent processing capabilities. 2) In system programming, Golang uses features close to hardware and compatibility with C language to be suitable for operating system development and embedded systems.

Golang and C have their own advantages and disadvantages in performance comparison: 1. Golang is suitable for high concurrency and rapid development, but garbage collection may affect performance; 2.C provides higher performance and hardware control, but has high development complexity. When making a choice, you need to consider project requirements and team skills in a comprehensive way.

Golang is suitable for high-performance and concurrent programming scenarios, while Python is suitable for rapid development and data processing. 1.Golang emphasizes simplicity and efficiency, and is suitable for back-end services and microservices. 2. Python is known for its concise syntax and rich libraries, suitable for data science and machine learning.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

Dreamweaver Mac version
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool

WebStorm Mac version
Useful JavaScript development tools