ioutil.ReadAll（response.Body）永远阻止-Golang

Question

tr := &http.Transport{
    TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
}
client := &http.Client{Transport: tr}
response, err := client.Get(link)
if err != nil {
    fmt.Println(err)
}
defer response.Body.Close()

//block forever at the next line
content, _ = ioutil.ReadAll(response.Body)

The above is my code to read content from a webpage which resides in a loop. I found sometimes the line ioutil.ReadAll(response.Body) will block forever. This happens randomly, however, it almost always happens on this webpage: http://xkcd.com/55 . It's very interesting that when I do curl http://xkcd.com/55, it returns nothing, however, wget http://xkcd.com/55 returns the whole webpage.

Answer 1

Your code should work as expected. I am guessing, its a network issue. Try setting a higher timeout.

package main

import (
    "crypto/tls"
    "fmt"
    "io/ioutil"
    "net/http"
)

func main() {

    link := "http://xkcd.com/55"

    tr := &http.Transport{
        TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
    }
    client := &http.Client{Transport: tr}
    response, err := client.Get(link)
    if err != nil {
        fmt.Println(err)
    }
    defer response.Body.Close()

    //block forever at the next line
    content, _ := ioutil.ReadAll(response.Body)

    fmt.Println(string(content))

}