如何用go语言下载带有http请求的文件 [英] How do I download a file with a http request in go language
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问题描述
我想使用go http软件包从go lang中的url中下载文件,并将图像保存到磁盘以供稍后显示在我的网页上。我需要这样做,因为我想从instagram下载图像并将它们保存到我的公共文件夹以便在我的网页上显示。
>我为其他人创建了一个答案,以供其他人使用我想出的代码。
解决方案
import(
os
net / http
io
)
func downloadFile(filepath string,url string)(err error){
//创建file
out,err:= os.Create(filepath)
if err!= nil {
return err
}
defer out.Close()
//获取数据
resp,err:= http.Get(url)
if err!= nil {
return err
}
推迟resp.Body.Close()
//将文件写入文件
_,err = io.Copy(out,resp.Body)
if err!= nil {
return err
}
返回零
}
它运作良好,但可能需要一点改进才能用于制作。
I want to download a file from an url in go lang using the go http package and save the image to disk for later display on my webpage. How do I do this?
I need to do this because I want to download images from instagram and save them to my public folder for display on my webpage.
I created an answer below for others to use the code I came up with.
解决方案
After some research I came up with this.
import (
"os"
"net/http"
"io"
)
func downloadFile(filepath string, url string) (err error) {
// Create the file
out, err := os.Create(filepath)
if err != nil {
return err
}
defer out.Close()
// Get the data
resp, err := http.Get(url)
if err != nil {
return err
}
defer resp.Body.Close()
// Writer the body to file
_, err = io.Copy(out, resp.Body)
if err != nil {
return err
}
return nil
}
It works well but might need a bit of refinement for use in production.
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