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Gin 使用笔记 ​

安装 ​

项目名称： gin-test-001

sh
mkdir -p ./gin-test-001
cd gin-test-001

# 初始化
go mod init gin-test-001

# 下载并安装 gin：
go get -u github.com/gin-gonic/gin

touch main.go
  • /main.go
go
package main

// 将 gin 引入到代码中：
import "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
}
sh
# 运行 main.go 并且在浏览器中访问 0.0.0.0:8080/ping
go run main.go

报错 ​

  • go: go.mod file not found in current directory or any parent directory.
sh
# 解决：
go mod init gin-test-001
  • go: module github.com/gin-gonic/gin: Get "https://proxy.golang.org/github.com/gin-gonic/gin/@v/list": dial tcp 142.251.43.17:443: connectex: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.
sh
# 解决：
go env -w GOPROXY=https://goproxy.cn,direct