利用Go语言开发强大的压测工具功能

module pressure-test-tool

go 1.17

require (
    github.com/go-resty/resty/v2 v2.7.0
)

package main

import (
    "fmt"
    "sync"
    "time"

    "github.com/go-resty/resty/v2"
)

func main() {
    url := "http://example.com" // 测试目标网站地址
    totalRequests := 1000       // 总请求次数
    concurrency := 100          // 并发数

    respTimes := make([]time.Duration, totalRequests)
    var wg sync.WaitGroup
    client := resty.New()

    start := time.Now()
    for i := 0; i < totalRequests; i++ {
        wg.Add(1)
        go func(index int) {
            defer wg.Done()
            startTime := time.Now()
            _, err := client.R().Get(url)
            if err != nil {
                fmt.Println("Request error:", err)
                return
            }
            respTimes[index] = time.Since(startTime)
        }(i)
        if i%concurrency == 0 {
            time.Sleep(1 * time.Second)
        }
    }

    wg.Wait()
    elapsed := time.Since(start)

    fmt.Println("Total requests:", totalRequests)
    fmt.Println("Concurrency:", concurrency)
    fmt.Println("Avg response time:", calculateAvgResponseTime(respTimes))
    fmt.Println("Total time taken:", elapsed)
}

func calculateAvgResponseTime(respTimes []time.Duration) time.Duration {
    sum := time.Duration(0)
    for _, respTime := range respTimes {
        sum += respTime
    }
    return sum / time.Duration(len(respTimes))
}