使用gin来创建简单的http服务器

最近需要对Web服务进行重构，由于原先的martini已经不再维护了，所以更换为gin。

gin相对于原先的服务，使用起来相对更简单一些

服务启动：

import (
	"fmt"
	"time"
	"net/http"
	"db"

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

func main() {
	r := gin.New()

	gin.SetMode(gin.ReleaseMode)
	
	db.SetupDB()

	r.Use(gin.LoggerWithFormatter(func(param gin.LogFormatterParams) string {
		return fmt.Sprintf("%s - [%s] \"%s %s %s %d %s \"%s\" %s\"\n",
			param.ClientIP,
			param.TimeStamp.Format(time.RFC1123),
			param.Method,
			param.Path,
			param.Request.Proto,
			param.StatusCode,
			param.Latency,
			param.Request.UserAgent(),
			param.ErrorMessage,
		)
	}))
	
	// Add this to disable logging
	// gin.DefaultWriter = ioutil.Discard
	
	r.GET("/address", HandleAddress)
	r.GET("/healthz", HandleHealthz)

	addr := fmt.Sprintf("%s:%d", "0.0.0.0", "80")
	s := &http.Server{
		Addr:           addr,
		Handler:        r,
		ReadTimeout:    10 * time.Second,
		WriteTimeout:   10 * time.Second,
		MaxHeaderBytes: 1 << 20,
	}
	
	s.ListenAndServe()
	
}

配置handler

import (
	"fmt"
	"os"

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

type Query struct {
	IP   string `form:"ip"`
	Type string `form:"type"`
}

func HandleAddress(c *gin.Context) {
	var query Query

	if c.ShouldBind(&query) == nil {
		ip := query.IP
		typ := query.Type

		switch typ {
		case "v6":
			out, err := db.FindV6Addr(ip)
			if err != nil {
				c.String(500, err.Error())
			} else {
				c.JSON(200, out)
			}
		default:
			out, err := db.FindV4Addr(ip)
			if err != nil {
				c.String(500, err.Error())
			} else {
				c.JSON(200, out)
			}
		}
	} else {

		c.String(500, "not support.")
	}

}

配置好后测试了性能：

开日志性能 90_000 RPS

关日志性能 180_000 RPS

大约比原先martini提高了一倍性能