What does gin mean?

Gin is a web framework written in Go and has the advantage of high performance.

1. Installation

Use go to download the gin library, command line input: go get github.com/gin-gonic/gin, generally use the required dependencies:

import "github.com/gin-gonic/gin"
import "net/http"

Two: Basic application

1.Query method in gin.Context: get URL parameter

package main
 
import (
    "github.com/gin-gonic/gin"
    "net/http"
)
 
func getQuery(context *gin.Context){
 
    userid := context.Query("userid")
    username := context.Query("username")
 
    context.String(http.StatusOK,userid+" "+username)
}
func main(){
    // 注册一个默认路由器
    router := gin.Default()
 
    //注册GET处理
    router.GET("/user", getQuery)
 
    //默认8080端口
    router.Run(":8088")
}

Browser output:

5 xiaoming

2.gin. Param method in Context: RESRful style URL parameter passing

package main
 
import (
    "github.com/gin-gonic/gin"
    "net/http"
)
 
func getParam(context *gin.Context){
 
    userid := context.Param("userid")
    username := context.Param("username")
 
    context.String(http.StatusOK,userid+" "+username)
}
func main(){
    // 注册一个默认路由器
    router := gin.Default()
 
    //注册GET处理
    //router.GET("/user", getQuery)
    router.GET("/user/:userid/:username",getParam)
    //默认8080端口
    router.Run(":8088")
}

Supplement: /:varname must match the corresponding one, /*varname must match all the following ones, and you cannot use more than one at the same time, otherwise a compilation error will be reported

Page output:

5 xiaoming

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