Go语言入门心法(六): HTTP面向客户端

编程入门行业动态更新时间:2024-10-10 15:22:07

Go语言入门<a href=https://www.elefans.com/category/jswz/34/1756517.html style= 心法(六): HTTP面向客户端"/>

Go语言入门心法(六): HTTP面向客户端

Go语言入门心法(一): 基础语法

Go语言入门心法(二): 结构体

Go语言入门心法(三): 接口

Go语言入门心法(四): 异常体系

Go语言入门心法(五): 函数

一:go语言面向web编程认知

Go语言的最大优势在于并发与性能,其性能可以媲美C和C++,并发在网络编程中更是至关重要
使用http发送请求,http包提供了HTTP客户端和服务器端的实现,使用HTTP客户端，需要理解和掌握两个非常重要的类型：(1) Client客户端(2) Request求体go语言模拟向浏览器发起HTTP请求,发起请求需要创建一个请求对象,使用NewRequest来创建

package mainimport ("fmt""io""net/http"
)/*
Go语言的最大优势在于并发与性能,其性能可以媲美C和C++,并发在网络编程中更是至关重要
使用http发送请求,http包提供了HTTP客户端和服务器端的实现,使用HTTP客户端，需要理解和掌握两个非常重要的类型：(1) Client客户端(2) Request求体go语言模拟向浏览器发起HTTP请求,发起请求需要创建一个请求对象,使用NewRequest来创建
*/
func main() {// 使用NewRequest模拟浏览器向服务器发送HTTP请求client := &http.Client{}// 访问：爱奇艺-在线视频网站-海量正版高清视频在线观看 首页request, err := http.NewRequest("GET", "/", nil)if err != nil {fmt.Println(err)}response, err := client.Do(request)fmt.Println(response.StatusCode)res, err := io.ReadAll(response.Body)if err != nil {fmt.Println(err)}// 打印bodyfmt.Println(string(res))
}

运行效果：

GOROOT=D:\program_file_worker\go1.20 #gosetup
GOPATH=D:\program_file_worker\go1.20\bin;C:\Users\Administrator\go #gosetup
D:\program_file_worker\go1.20\bin\go.exe build -o C:\Users\Administrator\AppData\Local\Temp\GoLand\___go_build_OOPHttpServerToWebRequest_go.exe D:\program_file\go_workspace\org.jd.data\http\OOPHttpServerToWebRequest.go #gosetup
C:\Users\Administrator\AppData\Local\Temp\GoLand\___go_build_OOPHttpServerToWebRequest_go.exe
200
<!DOCTYPE html><html data-n-head-ssr><head>
<title>爱奇艺-在线视频网站-海量正版高清视频在线观看</title><meta data-n-head="ssr" charset="utf-8"><meta data-n-head="ssr" name="apple-itunes-app" content="app-id=409563112, app-argument=iqiyi-pad://mobile/home?subtype=iPaihd_0"><meta data-n-head="ssr" name="renderer" content="webkit"><meta data-n-head="ssr" name="bytedance-verification-code" content="OH3/r7XoQqpCuo9kll67"><meta data-n-head="ssr" name="referrer" content="always"><meta data-n-head="ssr" name="google-site-verification" content="X6OJWiV6ws5XxP08OZZNglZpIZD_-EXXeGHyrx7ZTIs"><meta data-n-head="ssr" content="W6H9eWF4xB" data-hid="baidu-site-verification" name="baidu-site-verification"><meta data-n-head="ssr" content="b14bc44b47df0f69871bc8a4b24832df" name="360-site-verification"><meta data-n-head="ssr" content="86697f6b21a3be1fd0dfb363f2103b7b" data-hid="360_ssp_verify" name="360_ssp_verify"><meta data-n-head="ssr" content="text/html; charset=utf-8" http-equiv="Content-Type"><meta data-n-head="ssr" lang="zh-CN" http-equiv="content-language"><meta data-n-head="ssr" content="99E5BCCCE330E1C63C0CC5BDE57AEE80" data-hid="msvalidate.01" name="msvalidate.01"><meta data-n-head="ssr" content="爱奇艺-iQIYI.COM" data-hid="Copyright" name="Copyright"><meta data-n-head="ssr" content="爱奇艺-iQIYI.COM" data-hid="author" name="author"><meta data-n-head="ssr" content="爱奇艺视频-在线视d="title" name="title" lang="zh-CN"><meta data-n-head="ssr" property="og:title" lang="zh-CN" content="爱奇艺视频,视频,视频网站,高清视频,电影,电视剧,动漫,综艺,音乐"><meta data-n-head="ssr" name="description" data-hid="descripti爱奇艺(IQIYI.COM)拥有海量、优质、高清的影视剧集等视频内容。爱奇艺VIP限时新用户特惠：首月6元，会员畅看顶级视听品质体验！当前热播《唐朝诡事录》《一年一度喜剧大赛2》《航海王》《请君》"><meta data-n-head="ssr" itemprop="name" contYI.COM)拥有海量、优质、高清的影视剧集等视频内容。爱奇艺VIP限时新用户特惠：首月6元，会员畅看顶级视听品质体验！当前热播《唐朝诡事录》《一年一度喜剧大赛2》《航海王》《请君》"><meta data-n-head="ssr" name="mobile-agent" content="fol" content="no-transform"><meta data-n-head="ssr" http-equiv="Cache-Control" content="no-siteapp"><meta data-n-head="ssr" itemprop="image" content="//www.iqiyipic/pcwimg/128-128-logo.png"><link data-n-head="ssr" rel="icon" type="image/x-icon" href="//www.iqiyipic/pcwimg/128-128-logo.png"><link data-n-head="ssr" rel="manifest" href="//www.iqiyi/manifest.json"><link data-n-head="ssr" rel="dns-prefetch" href="//cache.video.iqiyi"><link data-n-head="ssr" rel="dns-prefetch" href="//pcw-api.iqiyi"><link data-n-head="ssr" rel="dns-prefetch" href="//hm.baidu"><link data-n-head="ssr" rel="dns-prefetch" href="//msg.qy"><link data-n-head="ssr" rel="dns-prefetch" href="//datax.baidu"><link data-n-head="ssr" rel="dns-prefetch" href="//static.iqiyi"><link data-n-head="ssr" rel="dns-prefetch" href="//static-s.iqiyi"><link data-n-head="ssr" rel="alternate" hreflang="zh-CN" href="//www.iqiyi/"><link data-n-head="ssr" rel="alternate" hreflang="zh-TW" href="//tw.iqiyi/"><link data-n-head="ssr" rel="alternate" hreflang="zh" href="//www.iqiyi/"><link data-n-head="ssr" rel="apple-to
uch-icon-precomposed" size="114x114" href="//www.iqiyipic/pcwimg/PCW-114x114.png"><link data-n-head="ssr" rel="apple-touch-icon-precomposed" size="72x72" href="//www.iqiyipic/pcwimg/PCW-72X72.png"><link
data-n-head="ssr" rel="canonical" href="//www.iqiyi/"><link rel="preload" href="//stc.iqiyipic/gaze/pcw/ssr/cb0d597.js" as="script"><link rel="preload" href="//stc.iqiyipic/gaze/pcw/ssr/app.069a04f.css" as="style">
<link rel="preload" href="//stc.iqiyipic/gaze/pcw/ssr/app.40d67a8dd3deb57c860f.js" as="script"><link rel="preload" href="//stc.iqiyipic/gaze/pcw/ssr/pages/index.0a766132af6dafcff12c.js" as="script"><link rel="preload"
href="//stc.iqiyipic/gaze/pcw/ssr/pages/cloudCinema/pages/cloudCinema1/pages/cloudCinemaPCA/pages/cloudCinemaPCA1/pages/components/pag/8c7f18db.462771861c0e477fb66d.js" as="script"><link rel="preload" href="//stc.iqiyipic.
com/gaze/pcw/ssr/pages/cloudCinema1/pages/cloudCinemaPCA1/pages/dianshiju/index/pages/dianying/pages/dongman/pages/in/2acb21ce.bde7a64cfc3a00b86ccd.js" as="script"><link rel="preload" href="//stc.iqiyipic/gaze/pcw/ssr/page
s/index/home2020.fa65e0e453b40bc444aa.js" as="script"><link rel="preload" href="//stc.iqiyipic/gaze/pcw/ssr/36.26673fa.css" as="style"><link rel="preload" href="//stc.iqiyipic/gaze/pcw/ssr/36.9330c2e3eccd15b6ff28.js" a
s="script"><link rel="preload" href="//stc.iqiyipic/gaze/pcw/ssr/122.837a6dc01d4662378290.js" as="script"><link rel="preload" href="//stc.iqiyipic/gaze/pcw/ssr/common.1522f29.css" as="style"><link rel="preload" href="/
/stc.iqiyipic/gaze/pcw/ssr/common.645cc65cefcb24b2a483.js" as="script"><link rel="stylesheet" href="//stc.iqiyipic/gaze/pcw/ssr/app.069a04f.css"><link rel="stylesheet" href="//stc.iqiyipic/gaze/pcw/ssr/36.26673fa.css"><link rel="stylesheet" href="//stc.iqiyipic/gaze/pcw/ssr/common.1522f29.css">
<script>window.qyTtiStart = Date.now()</script></head>
<body>
<div data-server-rendered="true" id="__nuxt"><div id="__layout"><div data-v-5f1d06ee><div id="adSkinInner" class="qy-dark" data-v-5f1d06ee><div id="I71Layout"></div> <div style="display:none">10/16/2023, 8:03:36 PM<
/div>  <div data-v-5f1d06ee><div class="skin_focus"></div> <div id="1000000000714" style="display: none;"><a id="adClick" οnfοcus="this.blur();" style="width: 100%; position: absolute;"></a> <div id="adDiv" style="width
: 970px; margin: 0px auto -25px;"></div></div></div> <div class="ph-skin-wrap"><header id="block-A" data-block-v2="712211_topNav" class="qy-header home2020 r-type1 greendark qy-header--bg qy-header--absolute"><div class="heade
r-wrap"><div class="header-inner"><div class="qy-logo"><a href="//www.iqiyi/" title="爱奇艺视频" data-rseat-v2="iQIYI_logo" class="logo-link2"></a></div><div class="qy-header-side"><div class="header__search"
><div class="client-only-placeholder"><div class="search-box"><span class="search-box-in"><input autocomplete="off" type="text" data-rseat-v2="712211_search_input" class="search-box-input"></span><span class="search-box-out"><
span type="button" class="search-box-btn"><i class="qy20-header-svg qy20-header-svg-search"></i></span></span></div></div></div><div class="header-sideItem header-vip"><div class="client-only-placeholder"><div class="header-si
deItemCon header-vip-login"><i class="header-sideItemIcon qy20-header-svg qy20-header-svg-vip"></i><span class="header__item__tit">VIP</span></div></div></div><div class="header-sideItem qy-header__game"><div class="client-onl
y-placeholder"><a href="//pc.game.iqiyi?startfrom=pcw_topbanner " target="_blank" data-rseat-v2="tj_gamecenter" class="header-sideItemCon"><i class="header-sideItemIcon qy20-header-svg qy20-header-svg-game"></i><span class
="header__item__tit">游戏</span></a></div></div><div class="header-sideItem header-upload"><div class="client-only-placeholder"><span data-rseat-v2="712211_upload_ugc" class="header-sideItemCon"><i class="header-sideItemIcon q
y20-header-svg qy20-header-svg-upload"></i><span id="nav_uploadHref" class="header__item__tit">上传</span></span></div></div><div class="header-sideItem header-download"><div class="client-only-placeholder"><div class="header-
sideItemCon"><i class="header-sideItemIcon qy20-header-svg qy20-header-svg-pca-dwn"></i><span class="header__item__tit">客户端</span></div></div></div><div class="header-sideItem header-record"><div class="client-only-placehol
der"><a target="_blank" rel="nofollow" href="//www.iqiyi/u/record" data-rseat-v2="tj_history" class="header-sideItemCon"><i class="header-sideItemIcon qy20-header-svg qy20-header-svg-record"></i><span class="header__item__tit">看过</span></a></div></div><div class="header-sideItem header-user"><div class="client-only-placeholder"><div class="header-sideItemCon"><a rel="nofollow" class="header-userLink"><img id="J-user-img" src="
//www.iqiyipic/common/fix/site-v5/header-userImg-default-dark.png>..............................................................................................................................................................

二: 添加请求体Cookie,伪装浏览器登录状态

模拟流量器登录：
当访问某些资源时,需要登录后才能访问,此时我们模拟登录,使得被访问的资源知道我们使用go编程的爬虫客户端是登录状态;
这就需要设置Cookie，Cookie通常用来标识客户端的登录状态;Request实例可以使用AddCookie方法给请求添加Cookie

package mainimport ("fmt""io""net/http""strconv"
)/*
模拟流量器登录：
当访问某些资源时,需要登录后才能访问,此时我们模拟登录,使得被访问的资源知道我们使用go编程的爬虫客户端是登录状态;
这就需要设置Cookie，Cookie通常用来标识客户端的登录状态;Request实例可以使用AddCookie方法给请求添加Cookie
*/
func main() {client := &http.Client{}request, err := http.NewRequest("GET", "/", nil)if err != nil {fmt.Println(err)}// 使用http.Cookie结构体初始化一个Cookie键值对cookie := &http.Cookie{Name: "userId", Value: strconv.Itoa(12345)}// 使用前面的构建的request方法AddCookie往请求中添加Cookierequest.AddCookie(cookie)request.AddCookie(&http.Cookie{Name: "session", Value: "YWRtaW4="})response, err := client.Do(request)fmt.Println(response.Request.Cookies())fmt.Println(response.StatusCode)res, err := io.ReadAll(response.Body)if err != nil {fmt.Println(err)}// 打印bodyfmt.Println(string(res))
}

运行效果：通常服务器使用session来判断客户端是否为登录用户

[userId=12345 session=YWRtaW4=]

GOROOT=D:\program_file_worker\go1.20 #gosetup
GOPATH=D:\program_file_worker\go1.20\bin;C:\Users\Administrator\go #gosetup
D:\program_file_worker\go1.20\bin\go.exe build -o C:\Users\Administrator\AppData\Local\Temp\GoLand\___go_build_OOPHttpServerToCookieLoginBrowser_go.exe D:\program_file\go_workspace\org.jd.data\http\OOPHttpServerToCookieLoginBrowser.go #gosetup
C:\Users\Administrator\AppData\Local\Temp\GoLand\___go_build_OOPHttpServerToCookieLoginBrowser_go.exe
[userId=12345 session=YWRtaW4=]
200
<!DOCTYPE html><html data-n-head-ssr><head>
<title>爱奇艺-在线视频网站-海量正版高清视频在线观看</title><meta data-n-head="ssr" charset="utf-8"><meta data-n-head="ssr" name="apple-itunes-app" content="app-id=409563112, app-argument=iqiyi-pad://mobile/home?subtype=iPaihd_0"><meta data-n-head="ssr" name="renderer" content="webkit"><meta data-n-head="ssr" name="bytedance-verification-code" content="OH3/r7XoQqpCuo9kll67"><meta data-n-head="ssr" name="referrer" content="always"><meta data-n-head="ssr" name="google-site-verification" content="X6OJWiV6ws5XxP08OZZNglZpIZD_-EXXeGHyrx7ZTIs"><meta data-n-head="ssr" content="W6H9eWF4xB" data-hid="baidu-site-verification" name="baidu-site-verification"><meta data-n-head="ssr" content="b14bc44b47df0f69871bc8a4b24832df" name="360-site-verification"><meta data-n-head="ssr" content="86697f6b21a3be1fd0dfb363f2103b7b" data-hid="360_ssp_verify" name="360_ssp_verify"><meta data-n-head="ssr" content="text/html; charset=utf-8" http-equiv="Content-Type"><meta data-n-head="ssr" lang="zh-CN" http-equiv="content-language"><meta data-n-head="ssr" content="99E5BCCCE330E1C63C0CC5BDE57AEE80" data-hid="msvalidate.01" name="msvalidate.01"><meta data-n-head="ssr" content="爱奇艺-iQIYI.COM" data-hid="Copyright" name="Copyright"><meta data-n-head="ssr" content="爱奇艺-iQIYI.COM" data-hid="author" name="author"><meta data-n-head="ssr" content="爱奇艺视频-在线视d="title" name="title" lang="zh-CN"><meta data-n-head="ssr" property="og:title" lang="zh-CN" content="爱奇艺视频,视频,视频网站,高清视频,电影,电视剧,动漫,综艺,音乐"><meta data-n-head="ssr" name="description" data-hid="descripti爱奇艺(IQIYI.COM)拥有海量、优质、高清的影视剧集等视频内容。爱奇艺VIP限时新用户特惠：首月6元，会员畅看顶级视听品质体验！当前热播《唐朝诡事录》《一年一度喜剧大赛2》《航海王》《请君》"><meta data-n-head="ssr" itemprop="name" cont
YI.COM)拥有海量、优质、高清的影视剧集等视频内容。爱奇艺VIP限时新新
户特惠：首月6元，会员畅看顶级视听品质体验！当前热播《唐朝诡事录》《一年一度喜剧大赛2》《航海王》《请君》"><meta data-n-head="ssr" name="mobile-agent" content="format=html5;url=//m.iqiyi/"><meta data-n-head="ssr" http-equ u
iv="Cache-Control" content="no-transform"><meta data-n-head="ssr" http-equiv="Cache-Control" content="no-siteapp"><meta data-n-head="ssr" itemprop="image" content="//www.iqiyipic/pcwimg/128-128-logo.png"><link data-n-head=
"ssr" rel="icon" type="image/x-icon" href="//www.iqiyipic/pcwimg/128-128-logo.png"><link data-n-head="ssr" rel="manifest" href="//www.iqiyi/manifest.json"><link data-n-head="ssr" rel="dns-prefetch" href="//cache.video.
iqiyi"><link data-n-head="ssr" rel="dns-prefetch" href="//pcw-api.iqiyi"><link data-n-head="ssr" rel="dns-prefetch" href="//hm.baidu"><link data-n-head="ssr" rel="dns-prefetch" href="//msg.qy"><link data-n-head
="ssr" rel="dns-prefetch" href="//datax.baidu"><link data-n-head="ssr" rel="dns-prefetch" href="//static.iqiyi"><link data-n-head="ssr" rel="dns-prefetch" href="//static-s.iqiyi"><link data-n-head="ssr" rel="altern
ate" hreflang="zh-CN" href="//www.iqiyi/">

三: 请求体添加Header,绕过反爬策略

有需网站作了反爬措施,一般会通过根据Header头中的User-Agent的值解析判断是浏览器还是爬虫;
这时我们需要设置成浏览器的UA来绕过这类反爬措施;Request可以直接使用request.Header.Set(key,value)来设置Header

package mainimport ("compress/flate""compress/gzip""fmt""io""net/http"
)func main() {println(`有需网站作了反爬措施,一般会通过根据Header头中的User-Agent的值解析判断是浏览器还是爬虫;这时我们需要设置成浏览器的UA来绕过这类反爬措施;Request可以直接使用request.Header.Set(key,value)来设置Header`)client := &http.Client{}request, err := http.NewRequest("GET", "/", nil)if err != nil {fmt.Println(err)}// 设置request的header,具体可参考HTTP协议request.Header.Set("Accept", "text/html, application/xhtml+xml, application/xml;q=0.9,*/*;q=0.8")request.Header.Set("Accept-Charset", "UTF-8, utf-8;q=0.7, *; q=0.3")request.Header.Set("Accept-Encoding", "gzip,deflate,sdch")request.Header.Set("Accept-Language", "zh-CN,zh;q=0.8")request.Header.Set("Cache-Control", "max-age=0")request.Header.Set("Connection", "keep-alive")request.Header.Set("User-Agent", "Mozilla/5.0 (Windows NT 10.0;WOW64) AppleWebKit/537.36 (KHTML,like Gecko) Chrome/72.0.3626.121 Safari/537.36")response, err := client.Do(request)fmt.Printf("%#v", response.Request.Header)//res, err := io.ReadAll(response.Body)switch response.Header.Get("Content-Encoding") {case "gzip":bodyReader, err := gzip.NewReader(response.Body)if err != nil {fmt.Println(err)}res, err := io.ReadAll(bodyReader)// 打印bodyfmt.Println(string(res))case "deflate":bodyReader := flate.NewReader(response.Body)res, err := io.ReadAll(bodyReader)if err != nil {fmt.Println(err)}// 打印bodyfmt.Println(string(res))default:bodyReader := response.Bodyres, err := io.ReadAll(bodyReader)if err != nil {fmt.Println(err)}// 打印bodyfmt.Println(string(res))}
}

运行效果：

GOROOT=D:\program_file_worker\go1.20 #gosetup
GOPATH=D:\program_file_worker\go1.20\bin;C:\Users\Administrator\go #gosetup
D:\program_file_worker\go1.20\bin\go.exe build -o C:\Users\Administrator\AppData\Local\Temp\GoLand\___go_build_OOPHttpServerGetToSetHeaderRequest_go.exe D:\program_file\go_workspace\org.jd.data\http\OOPHttpServerGetToSetHeaderRequest.go #gosetup
C:\Users\Administrator\AppData\Local\Temp\GoLand\___go_build_OOPHttpServerGetToSetHeaderRequest_go.exe

有需网站作了反爬措施,一般会通过根据Header头中的User-Agent的值解析判断是浏览器还是爬虫;
这时我们需要设置成浏览器的UA来绕过这类反爬措施;Request可以直接使用request.Header.Set(key,value)来设置Header

http.Header{"Accept":[]string{"text/html, application/xhtml+xml, application/xml;q=0.9,*/*;q=0.8"}, "Accept-Charset":[]string{"UTF-8, utf-8;q=0.7, *; q=0.3"}, "Accept-Encoding":[]string{"gzip,deflate,sdch"}, "Accept-Language":[]string{"zh-CN,zh;q=0.8"}, "Cache-Control":[]string{"max-age=0"}, "Connection":[]string{"keep-alive"}, "Referer":[]string{"/"}, "User-Agent":[]string{"Mozilla/5.0 (Windows NT 10.0;WOW64) AppleWebKit/537.36 (KHTML,like Gecko) Chrome/72.0.3626.121 Safari/537.36"}}

<!DOCTYPE html><html><head><meta http-equiv="Content-Type" content="text/html;charset=utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"><meta content="always" name="referrer"><meta name="theme-color" content="#ffffff"><meta name="description" content="全球领先的中文搜索引擎、致力于让网民更便捷地获取信息，找到所求。百度超过千亿的中文网页数据库，可以瞬间找到相aidu/favicon.ico" type="image/x-icon" /><link rel="search" type="application/opensearchdescription+xml" href="/content-search.xml" title="百度搜索" /><link rel="icon" sizes="any" mask href=".iclink rel="dns-prefetch" href="//dss0.bdstatic"/><link rel="dns-prefetch" href="//dss1.bdstatic"/><link rel="dns-prefetch" href="//ss1.bdstatic"/><link rel="dns-prefetch" href="//sp0.baidu"/><link rel="dns-prefetch" href="//sp1.baidu"/><link rel="dns-prefetch" href="//sp2.baidu"/><link rel="dns-prefetch" href="//pss.bdstatic"/><link rel="apple-touch-icon-precomposed" href=".png"><title>百度一下，你就知道</title>

四: 直接使用Get(url)函数发送请求

Client类型包含get方法,get方法时对Do方法的封装,使用get方法可以快速发起一个get请求;
http包中也有一个叫GET的方法,底层就是调用Client的GET方法

package mainimport ("fmt""io/ioutil""net/http"
)/*
Client类型包含get方法,get方法时对Do方法的封装,使用get方法可以快速发起一个get请求;
http包中也有一个叫GET的方法,底层就是调用Client的GET方法
*/
func main() {// http.Get实际上是DefaultClient.Get(url)，Get函数是高度封装的,只有一个参数Url// 对于一般的http Request是可以使用，但是不能定制Requestresponse, err := http.Get("")if err != nil {fmt.Println(err)}defer response.Body.Close()body, _ := ioutil.ReadAll(response.Body)fmt.Println(string(body))}

运行效果：

GOROOT=D:\program_file_worker\go1.20 #gosetup
GOPATH=D:\program_file_worker\go1.20\bin;C:\Users\Administrator\go #gosetup
D:\program_file_worker\go1.20\bin\go.exe build -o C:\Users\Administrator\AppData\Local\Temp\GoLand\___go_build_OOPHttpServerUseGetMethodToSendRequest_go.exe D:\program_file\go_workspace\org.jd.data\http\OOPHttpServerUseGetMethodToSendRequest.go #gosetup
C:\Users\Administrator\AppData\Local\Temp\GoLand\___go_build_OOPHttpServerUseGetMethodToSendRequest_go.exe
<!DOCTYPE html><html><head><meta http-equiv="Content-Type" content="text/html;charset=utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"><meta content="always" name="referrer"><meta name="theme-color" content="#ffffff"><meta name="description" content="全球领先的中文搜索引擎、致力于让网民更便捷地获取信息，找到所求。百度超过千亿的中文网页数据库，可以瞬间找到相关的搜索结果。"><link rel="shortcut icon" href="https://warch" type="application/opensearchdescription+xml" href="/content-search.xml" title="百度搜索" /><link rel="icon" sizes="any" mask href=".ico"><link rel="dns-prefetch" href="//dss0.bdstatic"/>< rel="dns-prefetch" href="//dss1.bdstatic"/><link rel="dns-prefetch" href="//ss1.bdstatic"/><link rel="dns-prefetch" href="//sp0.baidu"/><link rel="dns-prefetch" href="//sp1.baidu"/><link rel="dns-prefetch" href="//sp2.baidu"/>

五: Post()携带数据发送请求

post发送web请求Post向指定的URL发送一个post请求,bodyType为post数据的类型,body为post数据,作为请求主体。如果参数body实现了io.Close接口,它会在请求后被关闭,调用者有责任读取完返回值resp的主体后关闭它,该方法时对Client的POST方法的封装

package mainimport ("fmt""io/ioutil""net/http""strings"
)/*
post发送web请求Post向指定的URL发送一个post请求,bodyType为post数据的类型,body为post数据,作为请求主体。如果参数body实现了io.Close接口,它会在请求后被关闭,调用者有责任读取完返回值resp的主体后关闭它,该方法时对Client的POST方法的封装
*/
func main() {resp, err := http.Post("","application/x-www-form-urlencoded",strings.NewReader("user=admin&pass=admin"))if err != nil {fmt.Println(err)}defer resp.Body.Close()body, err := ioutil.ReadAll(resp.Body)if err != nil {fmt.Println(err)}fmt.Println(string(body))}

运行效果：

GOROOT=D:\program_file_worker\go1.20 #gosetup
GOPATH=D:\program_file_worker\go1.20\bin;C:\Users\Administrator\go #gosetup
D:\program_file_worker\go1.20\bin\go.exe build -o C:\Users\Administrator\AppData\Local\Temp\GoLand\___go_build_OOPHttpServerPostToWebRequest_go.exe D:\program_file\go_workspace\org.jd.data\http\OOPHttpServerPostToWebRequest.go #gosetup
C:\Users\Administrator\AppData\Local\Temp\GoLand\___go_build_OOPHttpServerPostToWebRequest_go.exe
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<link rel="canonical" href=""/>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<meta name="renderer" content="webkit"/>
<meta name="force-rendering" content="webkit"/>
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no">
<meta name="report" content='{"spm":"1001.2101","extra":{"titAb":"t_1","lvab":"t_1"},"pid":"blog"}'>
<meta name="referrer" content="always">
<meta http-equiv="Cache-Control" content="no-siteapp" /><link rel="alternate" media="handheld" href="#" />
<meta name="shenma-site-verification" content="5a59773ab8077d4a62bf469ab966a63b_1497598848">
<meta name="applicable-device" content="pc">
<link href=".ico" rel="shortcut icon" type="image/x-icon" />
<title>解决@ResponseBody注解返回中文乱码_responsebody返回中文乱码-CSDN博客</title>
<script>
(function(){
var el = document.createElement("script");
el.src = ".js?1abfa13dfe74d72d41d83c86d240de427e7cac50c51ead53b2e79d40c7952a23ed7716d05b4a0f683a653eab3e214672511de2457e74e99286eb2c33f4428830";
el.id = "ttzz";
var s = document.getElementsByTagName("script")[0];
s.parentNode.insertBefore(el, s);
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<meta name="keywords" content="responsebody返回中文乱码">
<meta name="csdn-baidu-search" content='{"autorun":true,"install":true,"keyword":"responsebody返回中文乱码"}'>
<meta name="description" content="用@ResponseBody注解返回字符串时，发现返回页面上的中文是乱码，这个问题是由于 spring mvc 使用了StringHttpMessageConverter ；来看一下这个类public class StringHttpMessageConverter extends AbstractHttpMessageConverter&lt;String&gt; { publ..._responsebody返回中文乱码">
{"@context":".jsonld","@id":"","appid":"1638831770136827","pubDate":"2018-11-30T11:02:20","title":"解决@ResponseBody注解返回中文乱码_responsebody返回中文乱码-CSDN博客","upDate":"2018-11-30T11:02:20"}</script>
<link rel="stylesheet" type="text/css" href=".min.css">
<script src=".9.1.min.js" type="text/javascript"></script>
<script type="text/javascript">
var isCorporate = false;//注释删除enterprise

var articleTitle = "解决@ResponseBody注解返回中文乱码";
var articleDesc = "用@ResponseBody注解返回字符串时，发现返回页面上的中文是乱码，这个问题是由于 spring mvc 使用了StringHttpMessageConverter ；来看一下这个类public class StringHttpMessageConverter extends AbstractHttpMessageConverter&lt;String&gt; { publ..._responsebody返回中文乱码";
var articleTitles = "解决@ResponseBody注解返回中文乱码_responsebody返回中文乱码-CSDN博客";
var nickName = "栋栋哥哥";
var articleDetailUrl = "";
if(window.location.host.split('.').length == 3) {
blog_address = blogUrl + username;

<link rel="stylesheet" href=".min.css">
<link rel="stylesheet" href=".css" />

六: PostForm()携带数据发送请求

除了Post携带参数发送请求外,还可以使用PostForm(url string,data url.Values)函数封装请求数据,向服务器发送请求;
该方法是对Client的PostForm方法的包装

package mainimport ("fmt""io/ioutil""net/http""net/url"
)/*
除了Post携带参数发送请求外,还可以使用PostForm(url string,data url.Values)函数封装请求数据,向服务器发送请求;
该方法是对Client的PostForm方法的包装
*/
func main() {resp, err := http.PostForm("",url.Values{"user": {"admin"}, "password": {"admin"}})if err != nil {fmt.Println(err)}defer resp.Body.Close()readBytes, err := ioutil.ReadAll(resp.Body)if err != nil {fmt.Println(err)}fmt.Println(string(readBytes))}

运行效果：

GOROOT=D:\program_file_worker\go1.20 #gosetup
GOPATH=D:\program_file_worker\go1.20\bin;C:\Users\Administrator\go #gosetup
D:\program_file_worker\go1.20\bin\go.exe build -o C:\Users\Administrator\AppData\Local\Temp\GoLand\___go_build_OOPHttpServerPostFormToWebRequest_go.exe D:\program_file\go_workspace\org.jd.data\http\OOPHttpServerPostFormToWebRequest.go #gosetup
C:\Users\Administrator\AppData\Local\Temp\GoLand\___go_build_OOPHttpServerPostFormToWebRequest_go.exe
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<link rel="canonical" href=""/>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<meta name="renderer" content="webkit"/>
<meta name="force-rendering" content="webkit"/>
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no">
<meta name="report" content='{"spm":"1001.2101","extra":{"titAb":"t_1","lvab":"t_1"},"pid":"blog"}'>
<meta name="referrer" content="always">
<meta http-equiv="Cache-Control" content="no-siteapp" /><link rel="alternate" media="handheld" href="#" />
<meta name="shenma-site-verification" content="5a59773ab8077d4a62bf469ab966a63b_1497598848">
<meta name="applicable-device" content="pc">
<link href=".ico" rel="shortcut icon" type="image/x-icon" />
<title>解决@ResponseBody注解返回中文乱码_responsebody返回中文乱码-CSDN博客</title>
<script>
(function(){
var el = document.createElement("script");
el.src = ".js?1abfa13dfe74d72d41d83c86d240de427e7cac50c51ead53b2e79d40c7952a23ed7716d05b4a0f683a653eab3e214672511de2457e74e99286eb2c33f4428830";
el.id = "ttzz";
var s = document.getElementsByTagName("script")[0];
s.parentNode.insertBefore(el, s);
})(window)
</script>
<meta name="keywords" content="responsebody返回中文乱码">
<meta name="csdn-baidu-search" content='{"autorun":true,"install":true,"keyword":"responsebody返回中文乱码"}'>
<meta name="description" content="用@ResponseBody注解返回字符串时，发现返回页面上的中文是乱码，这个问题是由于 spring mvc 使用了StringHttpMessageConverter ；来看一下这个类public class StringHttpMessageConverter extends AbstractHttpMessageConverter&lt;String&gt; { publ..._responsebody返回中文乱码">
<link rel="stylesheet" type="text/css" href=".min.css">
<style>
{"@context":".jsonld","@id":"","appid":"1638831770136827","pubDate":"2018-11-30T11:02:20","title":"解决@ResponseBody注解返回中文乱码_responsebody返回中文乱码-CSDN博客","upDate":"2018-11-30T11:02:20"}</script>
<link rel="stylesheet" type="text/css" href=".min.css">
<script src=".9.1.min.js" type="text/javascript"></script>
<script type="text/javascript">
var isCorporate = false;//注释删除enterprise
var username = "u014396256";
var skinImg = "white";
var blog_address = "";
var currentUserName = "";
var isOwner = false;
var loginUrl = "=";
var blogUrl = "/";
var avatar = ".jpg!1";
var articleTitle = "解决@ResponseBody注解返回中文乱码";
var articleDesc = "用@ResponseBody注解返回字符串时，发现返回页面上的中文是乱码，这个问题是由于 spring mvc 使用了StringHttpMessageConverter ；来看一下这个类public class StringHttpMessageConverter extends AbstractHttpMessageConverter&lt;String&gt; { publ..._responsebody返回中文乱码";
var articleTitles = "解决@ResponseBody注解返回中文乱码_responsebody返回中文乱码-CSDN博客";
var nickName = "栋栋哥哥";
var articleDetailUrl = "";
if(window.location.host.split('.').length == 3) {
blog_address = blogUrl + username;
}

</head>
<body class="nodata " style="">
<div id="toolbarBox" style="min-height: 48px;"></div>
<script>
var toolbarSearchExt = '{"landingWord":["responsebody返回中文乱码"],"queryWord":"","tag":[],"title":"解决@ResponseBody注解返回中文乱码"}';
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