Golang fasthttp实践

原计划学完Golang语言HTTP客户端实践之后,就可以继续了,没想到才疏学浅,在搜资料的时候发现除了Golang SDK自带的net/http,还有一个更牛的HttpClient实现github.com/valyala/fasthttp,据说性能是net/http的10倍,我想可能是有点夸张了,后期我会进行测试,以正视听。

github.com/valyala/fasthttp用到了对象池,为了在高性能测试中减少内存的使用,fasthttp使用了两个对象池(我只看了这俩):requestPool sync.PoolresponsePool sync.Pool,当然fasthttp也提供了正常的对象创建API,后面我在案例中也会写到。

基础API演示

首先分享一下基础的用法封装:

PS:这个属于练习版本,所以没写多少注释。

package ft

import (
	"encoding/json"
	"fmt"
	"funtester/task"
	"github.com/valyala/fasthttp"
)


func FastGet(url string, args map[string]interface{}) ([]byte, error) {
	uri := url + "?" + task.ToValues(args)
	_, resp, err := fasthttp.Get(nil, uri)
	if err != nil {
		fmt.Println("请求失败:", err.Error())
		return nil, err
	}
	return resp, err
}

func FastPostForm(url string, args map[string]interface{}) ([]byte, error) {

	// 填充表单,类似于net/url
	params := &fasthttp.Args{}
	for s, i2 := range args {
		sprintf := fmt.Sprintf("%v", i2)
		params.Add(s, sprintf)
	}
	_, resp, err := fasthttp.Post(nil, url, params)
	if err != nil {
		fmt.Println("请求失败:", err.Error())
		return nil, err
	}
	return resp, nil
}

func FastPostJson(url string, args map[string]interface{}) ([]byte, error) {

	req := &fasthttp.Request{}
	req.SetRequestURI(url)

	marshal, _ := json.Marshal(args)
	req.SetBody(marshal)

	// 默认是application/x-www-form-urlencoded,其实无所谓
	req.Header.SetContentType("application/json")
	req.Header.SetMethod("POST")

	resp := &fasthttp.Response{}
	if err := fasthttp.Do(req, resp); err != nil {
		fmt.Println("请求失败:", err.Error())
		return nil, err
	}
	return resp.Body(), nil
}

其中两点主要注意:

  • FastGet、FastPostForm使用的fasthttp提供的默认获取请求的方式,FastPostJson使用了自定义请求和获取响应的方式
  • 关于请求头中的req.Header.SetContentType方法,其实无所谓,服务端都可以解析

高性能API演示

下面分享使用更高的性能(基于对象池)的API创建请求和获取响应的方式:

package task

import (
	"crypto/tls"
	"encoding/json"
	"fmt"
	"github.com/valyala/fasthttp"
	"log"
	"time"
)

var FastClient fasthttp.Client = fastClient()

// FastGet 获取GET请求对象,没有进行资源回收
// @Description:
// @param url
// @param args
// @return *fasthttp.Request
func FastGet(url string, args map[string]interface{}) *fasthttp.Request {
	req := fasthttp.AcquireRequest()
	req.Header.SetMethod("GET")
	values := ToValues(args)
	req.SetRequestURI(url + "?" + values)
	return req
}

// FastPostJson POST请求JSON参数,没有进行资源回收
// @Description:
// @param url
// @param args
// @return *fasthttp.Request
func FastPostJson(url string, args map[string]interface{}) *fasthttp.Request {
	req := fasthttp.AcquireRequest()
	// 默认是application/x-www-form-urlencoded
	req.Header.SetContentType("application/json")
	req.Header.SetMethod("POST")
	req.SetRequestURI(url)
	marshal, _ := json.Marshal(args)
	req.SetBody(marshal)
	return req
}

// FastPostForm POST请求表单传参,没有进行资源回收
// @Description:
// @param url
// @param args
// @return *fasthttp.Request
func FastPostForm(url string, args map[string]interface{}) *fasthttp.Request {
	req := fasthttp.AcquireRequest()
	// 默认是application/x-www-form-urlencoded
	//req.Header.SetContentType("application/json")
	req.Header.SetMethod("POST")
	req.SetRequestURI(url)
	marshal, _ := json.Marshal(args)
	req.BodyWriter().Write([]byte(ToValues(args)))
	req.BodyWriter().Write(marshal)
	return req
}

// FastResponse 获取响应,保证资源回收
// @Description:
// @param request
// @return []byte
// @return error
func FastResponse(request *fasthttp.Request) ([]byte, error) {
	response := fasthttp.AcquireResponse()
	defer fasthttp.ReleaseResponse(response)
	defer fasthttp.ReleaseRequest(request)
	if err := FastClient.Do(request, response); err != nil {
		log.Println("响应出错了")
		return nil, err
	}
	return response.Body(), nil
}

// DoGet 发送GET请求,获取响应
// @Description:
// @param url
// @param args
// @return []byte
// @return error
func DoGet(url string, args map[string]interface{}) ([]byte, error) {
	req := fasthttp.AcquireRequest()
	defer fasthttp.ReleaseRequest(req) // 用完需要释放资源
	req.Header.SetMethod("GET")
	values := ToValues(args)
	req.SetRequestURI(url + "?" + values)
	resp := fasthttp.AcquireResponse()
	defer fasthttp.ReleaseResponse(resp) // 用完需要释放资源
	if err := FastClient.Do(req, resp); err != nil {
		fmt.Println("请求失败:", err.Error())
		return nil, err
	}
	return resp.Body(), nil
}

// fastClient 获取fast客户端
// @Description:
// @return fasthttp.Client
func fastClient() fasthttp.Client {
	return fasthttp.Client{
		Name:                     "FunTester",
		NoDefaultUserAgentHeader: true,
		TLSConfig:                &tls.Config{InsecureSkipVerify: true},
		MaxConnsPerHost:          2000,
		MaxIdleConnDuration:      5 * time.Second,
		MaxConnDuration:          5 * time.Second,
		ReadTimeout:              5 * time.Second,
		WriteTimeout:             5 * time.Second,
		MaxConnWaitTimeout:       5 * time.Second,
	}
}

测试服务

用的还是moco_FunTester测试框架,脚本如下:

package com.mocofun.moco.main

import com.funtester.utils.ArgsUtil
import com.mocofun.moco.MocoServer
import org.apache.tools.ant.taskdefs.condition.And

class Share extends MocoServer {

    static void main(String[] args) {
        def util = new ArgsUtil(args)
        //                def server = getServerNoLog(util.getIntOrdefault(0,12345))
        def server = getServer(util.getIntOrdefault(0, 12345))
        server.get(both(urlStartsWith("/test"),existArgs("code"))).response("get请求")
        server.post(both(urlStartsWith("/test"), existForm("fun"))).response("post请求form表单")
        server.post(both(urlStartsWith("/test"), existParams("fun"))).response("post请求json表单")
        server.get(urlStartsWith("/qps")).response(qps(textRes("恭喜到达QPS!"), 1))
//        server.response(delay(jsonRes(getJson("Have=Fun ~ Tester !")), 1000))
        server.response("Have Fun ~ Tester !")
        def run = run(server)
        waitForKey("fan")
        run.stop()
    }
}

Golang单元测试

第一次写Golang单测,有点不适应,搞了很久才通。

package test

import (
	"funtester/ft"
	"funtester/task"
	"log"
	"testing"
)

const url = "http://localhost:12345/test"

func args() map[string]interface{} {
	return map[string]interface{}{
		"code": 32,
		"fun":  32,
		"msg":  "324",
	}
}

func TestGet(t *testing.T) {
	get := task.FastGet(url, args())
	res, err := task.FastResponse(get)
	if err != nil {
		t.Fail()
	}
	v := string(res)
	log.Println(v)
	if v != "get请求" {
		t.Fail()
	}
}

func TestPostJson(t *testing.T) {
	post := task.FastPostJson(url, args())
	res, err := task.FastResponse(post)
	if err != nil {
		t.Fail()
	}
	v := string(res)
	log.Println(v)
	if v != "post请求json表单" {
		t.Fail()
	}
}

func TestPostForm(t *testing.T) {
	post := task.FastPostForm(url, args())
	res, err := task.FastResponse(post)
	if err != nil {
		t.Fail()
	}
	v := string(res)
	log.Println(v)
	if v != "post请求form表单" {
		t.Fail()
	}
}

func TestGetNor(t *testing.T) {
	res, err := ft.FastGet(url, args())
	if err != nil {
		t.Fail()
	}
	v := string(res)
	log.Println(v)
	if v != "get请求" {
		t.Fail()
	}
}

func TestPostJsonNor(t *testing.T) {
	res, err := ft.FastPostJson(url, args())
	if err != nil {
		t.Fail()
	}
	v := string(res)
	log.Println(v)
	if v != "post请求json表单" {
		t.Fail()
	}
}

func TestPostFormNor(t *testing.T) {
	res, err := ft.FastPostForm(url, args())
	if err != nil {
		t.Fail()
	}
	v := string(res)
	log.Println(v)
	if v != "post请求form表单" {
		t.Fail()
	}
}

测试报告

用的自带的控制台输出内容:

=== RUN   TestGet
2021/10/18 18:56:49 get请求
--- PASS: TestGet (0.01s)
=== RUN   TestPostJson
2021/10/18 18:56:49 post请求json表单
--- PASS: TestPostJson (0.00s)
=== RUN   TestPostForm
2021/10/18 18:56:49 post请求form表单
--- PASS: TestPostForm (0.00s)
=== RUN   TestGetNor
2021/10/18 18:56:49 get请求
--- PASS: TestGetNor (0.00s)
=== RUN   TestPostJsonNor
2021/10/18 18:56:49 post请求json表单
--- PASS: TestPostJsonNor (0.00s)
=== RUN   TestPostFormNor
2021/10/18 18:56:49 post请求form表单
--- PASS: TestPostFormNor (0.00s)
=== RUN   TestStageJSON

Have Fun ~ Tester !