Go 快速入门指南 - HTTP

概述

net/http 包含了 HTTP 相关方法。

例子

package main

import (
    "errors"
    "fmt"
    "io"
    "net/http"
)

func main() {
    resp, err := http.Get("https://www.baidu.com")
    if err != nil {
        panic(err)
    }
    defer func() {
        err = resp.Body.Close()
        if err != nil {
            fmt.Printf("resp.Body.Close() %s", err)
        }
    }()

    fmt.Printf("Response status code = %d\n", resp.StatusCode)
    fmt.Printf("Response content type = %s\n", resp.Header.Get("Content-Type"))
    fmt.Printf("Response content length = %d\n", resp.ContentLength)

    body := make([]byte, resp.ContentLength)
    n, err := resp.Body.Read(body)
    if err != nil && !errors.Is(err, io.EOF) {
        panic(err)
    }

    fmt.Printf("Response body read = %d\n", n)
    fmt.Printf("Response body = %s\n", body)
}

// $ go run main.go
// 输出如下
/**
  Response status code = 200
  Response content type = text/html
  Response content length = 227
  Response body read = 227
  Response body = 
  
          
  
  
          
  
  
*/

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