Golang爬虫基础：GET请求

一个简单的示例代码，请求httpbin.org/get这个页面，返回请求的一些信息

package main

import (
"fmt"
"io/ioutil"
"log"
"net/http"
)

func main() {
    url := "http://httpbin.org/get"
    fmt.Printf("url: %s\n", url)

    res, err := http.Get(url)
if err != nil {
log.Fatal(err)
    }
    defer res.Body.Close()

    body, err := ioutil.ReadAll(res.Body)
if err != nil {
log.Fatal(err)
    }   

    fmt.Printf("%s\n", body)
}

运行结果：

url: http://httpbin.org/get
{
"args": {}, 
"headers": {
"Accept-Encoding": "gzip", 
"Connection": "close", 
"Host": "httpbin.org", 
"User-Agent": "Go-http-client/1.1"
  }, 
"origin": "139.159.214.194", 
"url": "http://httpbin.org/get"
}