我正在尝试使用Go的net/http包设置cookie。我有：
package main
import "io"
import "net/http"
import "time"
func indexHandler(w http.ResponseWriter, req *http.Request) {
expire := time.Now().AddDate(0, 0, 1)
cookie := http.Cookie{"test", "tcookie", "/", "www.domain.com", expire, expire.Format(time.UnixDate), 86400, true, true, "test=tcookie", []string{"test=tcookie"}}
req.AddCookie(&cookie)
io.WriteString(w, "Hello world!")
}
func main() {
http.HandleFunc("/", indexHandler)
http.ListenAndServe(":80", nil)
}
我试着用"饼干"在谷歌上搜索"果朗"，但没有得到任何好结果。如果有人能为我指明正确的方向，我将不胜感激。
我不是围棋专家，但我认为你是在根据请求设置cookie，不是吗？您可能需要将其设置在响应上。net/http中有一个setCookie函数。这可能会有所帮助：http://golang.org/pkg/net/http/#SetCookie
func SetCookie(w ResponseWriter, cookie *Cookie)
//ShowAllTasksFunc is used to handle the "/" URL which is the default ons
func ShowAllTasksFunc(w http.ResponseWriter, r *http.Request){
if r.Method == "GET" {
context := db.GetTasks("pending") //true when you want non deleted notes
if message != "" {
context.Message = message
}
context.CSRFToken = "abcd"
message = ""
expiration := time.Now().Add(365 * 24 * time.Hour)
cookie := http.Cookie{Name: "csrftoken",Value:"abcd",Expires:expiration}
http.SetCookie(w, &cookie)
homeTemplate.Execute(w, context)
} else {
message = "Method not allowed"
http.Redirect(w, r, "/", http.StatusFound)
}
}
Requests和ResponseWriter之间有一个基本区别，请求是浏览器像一样发送的内容
Host: 127.0.0.1:8081
User-Agent: ...
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
DNT: 1
Referer: http://127.0.0.1:8081/
Cookie: csrftoken=abcd
Connection: keep-alive
响应是处理程序将发送的内容，类似于：
Content-Type: text/html; charset=utf-8
Date: Tue, 12 Jan 2016 16:43:53 GMT
Set-Cookie: csrftoken=abcd; Expires=Wed, 11 Jan 2017 16:43:53 GMT
Transfer-Encoding: chunked
<html>...</html>
当浏览器发出请求时，它将包括该域的cookie，因为cookie是按域存储的，不能从跨域访问，如果你只将cookie设置为HTTP，那么它只能从通过HTTP而不是JS设置的网站访问。
因此，当你从Cookie中获取信息时，你可以通过r.Cookie方法来做到这一点，比如这个
cookie, _ := r.Cookie("csrftoken")
if formToken == cookie.Value {
https://github.com/thewhitetulip/Tasks/blob/master/views/addViews.go#L72-L75
但是，当你要设置cookie时，你必须在response-writer方法中进行，请求是一个只读对象，我们会对其进行响应，将其视为你从某人那里收到的短信，这是一个请求，你只能得到它，你键入的是一个响应，所以你可以在中键入cookie
有关更多详细信息：https://thewhitetulip.gitbooks.io/webapp-with-golang-anti-textbook/content/content/2.4workingwithform.html
下面的代码有助于u
cookie1 := &http.Cookie{Name: "sample", Value: "sample", HttpOnly: false}
http.SetCookie(w, cookie1)
下面展示了我们如何在产品中使用cookie：
func handleFoo(w http.ResponseWriter, r *http.Request) {
// cookie will get expired after 1 year
expires := time.Now().AddDate(1, 0, 0)
ck := http.Cookie{
Name: "JSESSION_ID",
Domain: "foo.com",
Path: "/",
Expires: expires,
}
// value of cookie
ck.Value = "value of this awesome cookie"
// write the cookie to response
http.SetCookie(w, &ck)
// ...
}
在添加Path和MaxAge之前，它在Safari中对我不起作用。安全和常规cookie都对我有效
分享，这样可以帮助像我一样被困2天以上的人：）
expire := time.Now().Add(20 * time.Minute) // Expires in 20 minutes
cookie := http.Cookie{Name: "username", Value: "nonsecureuser", Path: "/", Expires: expire, MaxAge: 86400}
http.SetCookie(w, &cookie)
cookie = http.Cookie{Name: "secureusername", Value: "secureuser", Path: "/", Expires: expire, MaxAge: 86400, HttpOnly: true, Secure: true}
http.SetCookie(w, &cookie)
首先，您需要创建Cookie，然后使用http包的SetCookie（）函数可以设置Cookie。
expire := time.Now().Add(10 * time.Minute)
cookie := http.Cookie{Name: "User", Value: "John", Path: "/", Expires: expire, MaxAge: 90000}
http.SetCookie(w, &cookie)
您可以使用gorilla包来处理cookie，也可以说是安全cookie：http://www.gorillatoolkit.org/pkg/securecookie