如何在Golang中实现HTTP客户端Cookie管理_Golang HTTP客户端Cookie管理方法汇总

package main

import (
    "fmt"
    "net/http"
    "net/http/cookiejar"
    "net/url"
)

func main() {
    // 创建CookieJar
    jar, _ := cookiejar.New(nil)
    
    // 创建带Cookie支持的Client
    client := &http.Client{
        Jar: jar,
    }

    // 发起第一次请求（假设服务端设置Cookie）
    resp, _ := client.Get("https://httpbin.org/cookies/set/sessionid/12345")
    defer resp.Body.Close()

    // 获取当前保存的Cookie
    u, _ := url.Parse("https://httpbin.org")
    cookies := jar.Cookies(u)
    for _, c := range cookies {
        fmt.Printf("Name: %s, Value: %s\n", c.Name, c.Value)
    }

    // 后续请求会自动携带Cookie
    client.Get("https://httpbin.org/cookies")
}

type MemoryJar struct {
    cookies map[string][]*http.Cookie
}

func NewMemoryJar() *MemoryJar {
    return &MemoryJar{cookies: make(map[string][]*http.Cookie)}
}

func (m *MemoryJar) SetCookies(u *url.URL, cookies []*http.Cookie) {
    key := u.Scheme + "://" + u.Host
    m.cookies[key] = cookies
}

func (m *MemoryJar) Cookies(u *url.URL) []*http.Cookie {
    key := u.Scheme + "://" + u.Host
    return m.cookies[key]
}

req, _ := http.NewRequest("GET", "https://httpbin.org/cookies", nil)
req.AddCookie(&http.Cookie{Name: "sessionid", Value: "12345"})
client := &http.Client{}
resp, _ := client.Do(req)

jar, _ := cookiejar.New(&cookiejar.Options{PublicSuffixList: publicsuffix.List})