Gin

用Go（Golang）编写的HTTP Web框架。它具有类似Martini的API，具有更好的性能。

项目地址

GitHub - gin-gonic/gin: Gin is a high-performance HTTP web framework written in Go. It provides a Martini-like API but with significantly better performance—up to 40 times faster—thanks to httprouter. Gin is designed for building REST APIs, web applications, and microservices.GitHub

快速开始

下载和安装

go get -u -v github.com/gin-gonic/gin

例子：简单的Gin服务

package main

import (
	"github.com/gin-gonic/gin"
)

func main() {
	r := gin.Default()
	r.GET("/hello", func(c *gin.Context) {
		c.JSON(200, gin.H{
			"say": "hello",
		})
	})
	r.Run("localhost:8080")
}

执行go run main.go启动服务

服务端输出

[GIN-debug] [WARNING] Creating an Engine instance with the Logger and Recovery middleware already attached.

[GIN-debug] [WARNING] Running in "debug" mode. Switch to "release" mode in production.
 - using env:   export GIN_MODE=release
 - using code:  gin.SetMode(gin.ReleaseMode)

[GIN-debug] GET    /hello                    --> main.main.func1 (3 handlers)
[GIN-debug] Listening and serving HTTP on localhost:8080

开启一个新的控制台，执行curl 127.0.0.1:8080/hello

客户端输出

{"say":"hello"}

服务端输出

[GIN] 2019/06/25 - 11:54:41 |?[97;42m 200 ?[0m|            0s |       127.0.0.1 |?[97;44m GET     ?[0m /hello