转到HTTP Post并使用Cookie
转到HTTP Post并使用Cookie
提问于 2012-10-06 12:40:56
我正在尝试使用Go登录一个网站，并存储cookies以备后用。
您能给出发布表单、存储cookies以及使用cookies访问其他页面的示例代码吗？
通过研究http://gotour.golang.org/src/pkg/net/http/client.go，我想我可能需要做一个客户端来存储这些cookie
package main
import ("net/http"
"log"
"net/url"
)
func Login(user, password string) string {
postUrl := "http://www.pge.com/eum/login"
// Set up Login
values := make(url.Values)
values.Set("user", user)
values.Set("password", password)
// Submit form
resp, err := http.PostForm(postUrl, values)
if err != nil {
log.Fatal(err)
}
defer resp.Body.Close()
// How do I store cookies?
return "Hello"
}
func ViewBill(url string, cookies) string {
//What do I put here?
}回答 4
Stack Overflow用户
回答已采纳
发布于 2013-10-16 00:44:16
Go 1.1引入了一个cookie jar实现net/http/cookiejar。
import (
"net/http"
"net/http/cookiejar"
)
jar, err := cookiejar.New(nil)
if err != nil { // error handling }
client := &http.Client{
Jar: jar,
}Stack Overflow用户
发布于 2012-10-06 13:20:02
首先，您需要实现http.CookieJar接口。然后，您可以将其传递到您创建的客户端，它将用于向客户端发出请求。举个基本的例子：
package main
import (
"fmt"
"net/http"
"net/url"
"io/ioutil"
"sync"
)
type Jar struct {
lk sync.Mutex
cookies map[string][]*http.Cookie
}
func NewJar() *Jar {
jar := new(Jar)
jar.cookies = make(map[string][]*http.Cookie)
return jar
}
// SetCookies handles the receipt of the cookies in a reply for the
// given URL. It may or may not choose to save the cookies, depending
// on the jar's policy and implementation.
func (jar *Jar) SetCookies(u *url.URL, cookies []*http.Cookie) {
jar.lk.Lock()
jar.cookies[u.Host] = cookies
jar.lk.Unlock()
}
// Cookies returns the cookies to send in a request for the given URL.
// It is up to the implementation to honor the standard cookie use
// restrictions such as in RFC 6265.
func (jar *Jar) Cookies(u *url.URL) []*http.Cookie {
return jar.cookies[u.Host]
}
func main() {
jar := NewJar()
client := http.Client{nil, nil, jar}
resp, _ := client.PostForm("http://www.somesite.com/login", url.Values{
"email": {"myemail"},
"password": {"mypass"},
})
resp.Body.Close()
resp, _ = client.Get("http://www.somesite.com/protected")
b, _ := ioutil.ReadAll(resp.Body)
resp.Body.Close()
fmt.Println(string(b))
}Stack Overflow用户
发布于 2016-03-11 01:45:41
在Go的1.5版本中，我们可以使用http.NewRequest通过cookie发出post请求。
package main
import "fmt"
import "net/http"
import "io/ioutil"
import "strings"
func main() {
// Declare http client
client := &http.Client{}
// Declare post data
PostData := strings.NewReader("useId=5&age=12")
// Declare HTTP Method and Url
req, err := http.NewRequest("POST", "http://localhost/", PostData)
// Set cookie
req.Header.Set("Cookie", "name=xxxx; count=x")
resp, err := client.Do(req)
// Read response
data, err := ioutil.ReadAll(resp.Body)
// error handle
if err != nil {
fmt.Printf("error = %s \n", err);
}
// Print response
fmt.Printf("Response = %s", string(data));
} 页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/12756782
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