[go practical basis] how to install and use gin

Catalog

One 、 brief introduction

Two 、 Knowledge point

3、 ... and 、 Rookie actual combat

1、 establish go file

2、 Running results

---

One 、 brief introduction

What is? Gin ,Gin It's a golang The micro framework of , The packaging is elegant ,API friendly , The source code comments are relatively clear , Fast and flexible , Fault tolerance and convenience

install : go get -u github.com/gin-gonic/gin

Two 、 Knowledge point

• gin install
• gin start-up
• gin Basic routing
• gin return JSON data

3、 ... and 、 Rookie actual combat

Actual combat scene ： use Go Realize installation and use gin

Make arrangements now ！

1、 establish go file

/*
 * @Author:  Rookie actual combat 
 * @Description:  How to install and use  gin
 */

/*
Gin It's a golang The micro framework of , The packaging is elegant ,API friendly , The source code comments are relatively clear , Fast and flexible , Fault tolerance and convenience 
 install : go get -u github.com/gin-gonic/gin
*/

//  Knowledge point :
// # gin  install 
// # gin  start-up 
// # gin  Basic routing 
// # gin  return  JSON  data 

package main

//  Import package 
import (
	"fmt"
	"github.com/gin-gonic/gin"
	"runtime"
)

//  The main function 
func main() {
	//  Print using built-in functions 
	println("Hello", " Rookie actual combat ")
	println(" Actual combat scene : ", " How to install and use  gin")

	//  initialization 
	r := gin.Default()

	//  Add routes and callbacks 
	r.GET("/ping", func(c *gin.Context) {
		//  Back to  code  and   Corresponding structure information 
		c.JSON(200, gin.H{
			"message": "pong",
		})
	})

	//  Use package functions to print 
	fmt.Printf(" edition : %s \n", runtime.Version())

	//  Start the framework program ,  Default  8080  port 
	r.Run()
}

2、 Running results

Hello Rookie actual combat

Actual combat scene : How to install and use gin

[GIN-debug] Listening and serving HTTP on :8080

  Rookie actual combat , Continuous learning !