HTML5页面正确编码设置方法
时间：2026-02-15 18:50:45 332浏览 收藏
本文深入解析HTML5页面编码设置的正确方法，强调``必须作为``内首个元素、文件须实际保存为UTF-8无BOM格式、且服务器Content-Type响应头需与之匹配——三者环环相扣、缺一不可；同时揭露常见误区（如位置靠后、旧式写法、引号缺失、记事本乱保存、响应头覆盖等），并提供VS Code/Notepad++编码核查、服务器配置调整等实操指南，帮你彻底告别中文乱码难题。
meta charset 声明必须放在 最前面
HTML5 中设置页面编码的唯一推荐方式是使用 ，且它必须出现在 内尽可能靠前的位置（最好作为第一个子元素）。浏览器在解析到该标签前若已读取了非 ASCII 字符（比如中文注释、标题文字），就可能触发编码误判，导致乱码或重新解析。
常见错误写法包括：
- 把
放在</code> 或 <code><script></code> 后面</li> <li>用旧式写法 <code><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></code>（虽兼容但冗余，且易因空格/大小写出错）</li> <li>漏掉引号，如 <code><meta charset=UTF-8></code>（不符合 HTML5 规范，部分解析器会忽略）</li> </ul><h3>charset 属性值必须与实际文件保存编码一致</h3> <p>声明 <code>charset="UTF-8"</code> 没有用，如果文件本身是用 GBK 或 ANSI（Windows 记事本默认）保存的，浏览器按 UTF-8 解码仍会显示乱码。关键在于“声明”和“物理存储”要对齐。</p> <p>确认和修正步骤：</p> <ul><li>用 VS Code、Sublime Text 或 Notepad++ 打开 HTML 文件，查看右下角编码标识（如 “UTF-8”、“GBK”）</li> <li>若显示非 <code>UTF-8</code>，选择「文件 → 另存为 → 编码选 UTF-8（无 BOM）」</li> <li>避免使用 Windows 自带记事本保存 HTML，它默认保存为 ANSI 或 UTF-16，极易出问题</li> </ul><h3>服务器响应头 Content-Type 优先级高于 meta charset</h3> <p>当网页通过 HTTP 服务访问（如 <code>http://localhost:8080/index.html</code>），服务器返回的 <code>Content-Type</code> 响应头（例如 <code>text/html; charset=iso-8859-1</code>）会覆盖 HTML 中的 <code><meta charset></code>。本地双击打开（<code>file:///</code> 协议）则只依赖 <code><meta></code>。</p> <p>验证方法：</p> <ul><li>Chrome 开发者工具 → Network → 刷新页面 → 点击 <code>index.html</code> → 查看 Response Headers 中的 <code>content-type</code></li> <li>若发现不匹配，需调整 Web 服务器配置：Apache 加 <code>AddDefaultCharset UTF-8</code>；Nginx 加 <code>charset utf-8;</code>；Python 的 <code>http.server</code> 默认不设 header，此时 <code><meta></code> 生效</li> </ul><pre class="brush:php;toolbar:false"><!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>我的页面</title> </head> <body> <p>你好，世界！</p> </body> </html></pre> <p>真正容易被忽略的是：即使写了 <code><meta charset="UTF-8"></code>，只要文件保存编码不对、或服务器 header 冲突、或它没放在 <code><head></code> 开头三行内，乱码就大概率发生——这三个条件缺一不可。</p><p>今天关于《HTML5页面正确编码设置方法》的内容介绍就到此结束，如果有什么疑问或者建议，可以在golang学习网公众号下多多回复交流；文中若有不正之处，也希望回复留言以告知！</p> <div id="third-party-overlay" style="position:fixed;left:0;top:0;width:100%;height:100%;display:none;justify-content:center;align-items:center;background:rgba(0,0,0,0.4);z-index:9999;"> <div style="background:#FFF3CD;border:1px solid #FFEEBA;padding:16px;border-radius:6px;box-sizing:border-box;max-width:480px;width:90%;text-align:center;"> <div style="font-size:14px;color:#856404;margin-bottom:12px;">您即将跳转至第三方网站，请注意保护好个人信息和财产安全！</div> <a href="https://comicdow.pdlcomic.top/1273%2F%E5%9B%A7%E6%AC%A1%E5%85%83.apk" target="_blank" rel="nofollow noopener noreferrer" style="color:#2d8cf0;text-decoration:none;" onclick="showThirdParty('none');">继续访问</a> </div> </div> <script> function showThirdParty(mode){ var el = document.getElementById('third-party-overlay'); if (!el) return; el.style.display = (mode === 'none' ? 'none' : 'flex'); } </script> </div> <div class="labsList"> </div> </div> <div class="contBoxNor"> <div class="contTit"> <div class="tit">资料下载</div> </div> <ul class="classRecomList"> <li> <a href="https://pan.quark.cn/s/ba8ef670cabd" rel="nofollow" target="_blank" title="编程学习资料下载" class="img_box"> <img loading="lazy" src="/assets/images/xuexiziliao.jpeg" onerror="this.onerror='';this.src='/assets/images/moren/morentu.png'" alt="编程学习资料下载"> </a> <dl> <dt class="lineOverflow"> <a href="https://pan.quark.cn/s/ba8ef670cabd" rel="nofollow" target="_blank" class="aBlack" title="编程学习资料下载">编程学习资料下载</a> </dt> <dd class="cont1 lineTwoOverflow"> 精选 编程（Golang、Python、Java、C++、JavaScript等） 教程、电子书与示例源码，一键打包本地下载学习。 </dd> <dd class="cont2"> <a href="https://pan.quark.cn/s/ba8ef670cabd" rel="nofollow" target="_blank" class="toStudy">立即下载</a> </dd> </dl> </li> </ul> </div> <!-- 最新阅读 --> <div class="contBoxNor"> <div class="contTit"> <div class="tit">相关阅读</div> <a href="/articlelist.html" class="more">更多></a> </div> <ul class="latestReadList"> <li> <div class="info"> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a> | 9个月前 | <a href="javascript:;" class="aLightGray" title="提升">提升</a> <a href="javascript:;" class="aLightGray" title="箭头函数">箭头函数</a> <a href="javascript:;" class="aLightGray" title="函数表达式">函数表达式</a> <a href="javascript:;" class="aLightGray" title="函数声明">函数声明</a> <a href="javascript:;" class="aLightGray" title="Function构造函数">Function构造函数</a> </div> <div class="tit lineOverflow"><a href="/article/207000.html" title="JavaScript函数定义及示例详解" class="aBlack">JavaScript函数定义及示例详解</a></div> <div class="opt"> <span><i class="view"></i>502</span> <span class="collectBtn user_collection" data-id="207000" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </div> </li> <li> <div class="info"> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a> | 2年前 | <a href="javascript:;" class="aLightGray" title="CSS">CSS</a> <a href="javascript:;" class="aLightGray" title="优化">优化</a> <a href="javascript:;" class="aLightGray" title="体验">体验</a> </div> <div class="tit lineOverflow"><a href="/article/72840.html" title="优化用户界面体验的秘密武器：CSS开发项目经验大揭秘" class="aBlack">优化用户界面体验的秘密武器：CSS开发项目经验大揭秘</a></div> <div class="opt"> <span><i class="view"></i>501</span> <span class="collectBtn user_collection" data-id="72840" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </div> </li> <li> <div class="info"> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a> | 2年前 | <a href="javascript:;" class="aLightGray" title="图片轮播">图片轮播</a> <a href="javascript:;" class="aLightGray" title="微信小程序">微信小程序</a> <a href="javascript:;" class="aLightGray" title="特效">特效</a> </div> <div class="tit lineOverflow"><a href="/article/76259.html" title="使用微信小程序实现图片轮播特效" class="aBlack">使用微信小程序实现图片轮播特效</a></div> <div class="opt"> <span><i class="view"></i>501</span> <span class="collectBtn user_collection" data-id="76259" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </div> </li> <li> <div class="info"> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a> | 2年前 | <a href="javascript:;" class="aLightGray" title="sessionStorage">sessionStorage</a> <a href="javascript:;" class="aLightGray" title="存储能力">存储能力</a> <a href="javascript:;" class="aLightGray" title="限制解析">限制解析</a> </div> <div class="tit lineOverflow"><a href="/article/83771.html" title="解析sessionStorage的存储能力与限制" class="aBlack">解析sessionStorage的存储能力与限制</a></div> <div class="opt"> <span><i class="view"></i>501</span> <span class="collectBtn user_collection" data-id="83771" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </div> </li> <li> <div class="info"> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a> | 2年前 | <a href="javascript:;" class="aLightGray" title="团队合作">团队合作</a> <a href="javascript:;" class="aLightGray" title="冒泡事件">冒泡事件</a> <a href="javascript:;" class="aLightGray" title="促进作用">促进作用</a> </div> <div class="tit lineOverflow"><a href="/article/85057.html" title="探索冒泡活动对于团队合作的推动力" class="aBlack">探索冒泡活动对于团队合作的推动力</a></div> <div class="opt"> <span><i class="view"></i>501</span> <span class="collectBtn user_collection" data-id="85057" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </div> </li> </ul> </div> <!-- 最新阅读 --> <div class="contBoxNor"> <div class="contTit"> <div class="tit">最新阅读</div> <a href="/articlelist.html" class="more">更多></a> </div> <ul class="latestReadList"> <li> <div class="info"> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a> | 5分钟前 | </div> <div class="tit lineOverflow"><a href="/article/497452.html" title="CSS浮动导致表格列宽错乱，如何用table-layout解决" class="aBlack">CSS浮动导致表格列宽错乱，如何用table-layout解决</a></div> <div class="opt"> <span><i class="view"></i>345</span> <span class="collectBtn user_collection" data-id="497452" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </div> </li> <li> <div class="info"> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a> | 7分钟前 | </div> <div class="tit lineOverflow"><a href="/article/497450.html" title="PostCSS自动化处理CSS方法详解" class="aBlack">PostCSS自动化处理CSS方法详解</a></div> <div class="opt"> <span><i class="view"></i>285</span> <span class="collectBtn user_collection" data-id="497450" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </div> </li> <li> <div class="info"> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a> | 31分钟前 | </div> <div class="tit lineOverflow"><a href="/article/497416.html" title="Linux下sed优化CSS响应式布局替换技巧" class="aBlack">Linux下sed优化CSS响应式布局替换技巧</a></div> <div class="opt"> <span><i class="view"></i>124</span> <span class="collectBtn user_collection" data-id="497416" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </div> </li> <li> <div class="info"> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a> | 34分钟前 | </div> <div class="tit lineOverflow"><a href="/article/497412.html" title="扒HTML获取网站结构与资源方法" class="aBlack">扒HTML获取网站结构与资源方法</a></div> <div class="opt"> <span><i class="view"></i>214</span> <span class="collectBtn user_collection" data-id="497412" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </div> </li> <li> <div class="info"> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a> | 35分钟前 | </div> <div class="tit lineOverflow"><a href="/article/497410.html" title="长页滚动优化：按需加载与懒加载技巧" class="aBlack">长页滚动优化：按需加载与懒加载技巧</a></div> <div class="opt"> <span><i class="view"></i>171</span> <span class="collectBtn user_collection" data-id="497410" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </div> </li> <li> <div class="info"> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a> | 36分钟前 | </div> <div class="tit lineOverflow"><a href="/article/497408.html" title="CSS样式覆盖问题解决指南" class="aBlack">CSS样式覆盖问题解决指南</a></div> <div class="opt"> <span><i class="view"></i>312</span> <span class="collectBtn user_collection" data-id="497408" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </div> </li> <li> <div class="info"> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a> | 38分钟前 | </div> <div class="tit lineOverflow"><a href="/article/497407.html" title="CSS边框颜色动画无效？animation-border-color与keyframes解决方法" class="aBlack">CSS边框颜色动画无效？animation-border-color与keyframes解决方法</a></div> <div class="opt"> <span><i class="view"></i>254</span> <span class="collectBtn user_collection" data-id="497407" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </div> </li> <li> <div class="info"> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a> | 39分钟前 | <a href="javascript:;" class="aLightGray" title="CSS">CSS</a> <a href="javascript:;" class="aLightGray" title="通配符选择器">通配符选择器</a> </div> <div class="tit lineOverflow"><a href="/article/497405.html" title="通配符选择器与继承优化方法" class="aBlack">通配符选择器与继承优化方法</a></div> <div class="opt"> <span><i class="view"></i>484</span> <span class="collectBtn user_collection" data-id="497405" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </div> </li> <li> <div class="info"> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a> | 44分钟前 | </div> <div class="tit lineOverflow"><a href="/article/497399.html" title="TypeORMandWhere动态条件绑定技巧" class="aBlack">TypeORMandWhere动态条件绑定技巧</a></div> <div class="opt"> <span><i class="view"></i>173</span> <span class="collectBtn user_collection" data-id="497399" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </div> </li> <li> <div class="info"> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a> | 53分钟前 | </div> <div class="tit lineOverflow"><a href="/article/497387.html" title="BOMalert弹窗使用教程详解" class="aBlack">BOMalert弹窗使用教程详解</a></div> <div class="opt"> <span><i class="view"></i>155</span> <span class="collectBtn user_collection" data-id="497387" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </div> </li> <li> <div class="info"> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a> | 56分钟前 | </div> <div class="tit lineOverflow"><a href="/article/497383.html" title="CSS定位元素的父元素overflow会影响定位吗" class="aBlack">CSS定位元素的父元素overflow会影响定位吗</a></div> <div class="opt"> <span><i class="view"></i>385</span> <span class="collectBtn user_collection" data-id="497383" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </div> </li> <li> <div class="info"> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a> | 59分钟前 | </div> <div class="tit lineOverflow"><a href="/article/497379.html" title="JavaScript闭包概念及应用解析" class="aBlack">JavaScript闭包概念及应用解析</a></div> <div class="opt"> <span><i class="view"></i>369</span> <span class="collectBtn user_collection" data-id="497379" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </div> </li> </ul> </div> <!-- 课程推荐 --> <div class="contBoxNor"> <div class="contTit"> <div class="tit">课程推荐</div> <a href="/courselist.html" class="more">更多></a> </div> <ul class="classRecomList"> <li> <a href="/course/9.html" title="前端进阶之JavaScript设计模式" class="img_box"> <img loading="lazy" src="/uploads/20221222/52fd0f23a454c71029c2c72d206ed815.jpg" onerror="this.onerror='';this.src='/assets/images/moren/morentu.png'" alt="前端进阶之JavaScript设计模式"> </a> <dl> <dt class="lineOverflow"> 前端进阶之JavaScript设计模式 </dt> <dd class="cont1 lineOverflow">设计模式是开发人员在软件开发过程中面临一般问题时的解决方案，代表了最佳的实践。本课程的主打内容包括JS常见设计模式以及具体应用场景，打造一站式知识长龙服务，适合有JS基础的同学学习。</dd> <dd class="cont2"> <a href="/course/9.html" title="前端进阶之JavaScript设计模式" class="toStudy">立即学习</a> <span>543次学习</span> </dd> </dl> </li> <li> <a href="/course/2.html" title="GO语言核心编程课程" class="img_box"> <img loading="lazy" src="/uploads/20221221/634ad7404159bfefc6a54a564d437b5f.png" onerror="this.onerror='';this.src='/assets/images/moren/morentu.png'" alt="GO语言核心编程课程"> </a> <dl> <dt class="lineOverflow"> GO语言核心编程课程 </dt> <dd class="cont1 lineOverflow">本课程采用真实案例，全面具体可落地，从理论到实践，一步一步将GO核心编程技术、编程思想、底层实现融会贯通，使学习者贴近时代脉搏，做IT互联网时代的弄潮儿。</dd> <dd class="cont2"> <a href="/course/2.html" title="GO语言核心编程课程" class="toStudy">立即学习</a> <span>516次学习</span> </dd> </dl> </li> <li> <a href="/course/74.html" title="简单聊聊mysql8与网络通信" class="img_box"> <img loading="lazy" src="/uploads/20240103/bad35fe14edbd214bee16f88343ac57c.png" onerror="this.onerror='';this.src='/assets/images/moren/morentu.png'" alt="简单聊聊mysql8与网络通信"> </a> <dl> <dt class="lineOverflow"> 简单聊聊mysql8与网络通信 </dt> <dd class="cont1 lineOverflow">如有问题加微信：Le-studyg；在课程中，我们将首先介绍MySQL8的新特性，包括性能优化、安全增强、新数据类型等，帮助学生快速熟悉MySQL8的最新功能。接着，我们将深入解析MySQL的网络通信机制，包括协议、连接管理、数据传输等，让</dd> <dd class="cont2"> <a href="/course/74.html" title="简单聊聊mysql8与网络通信" class="toStudy">立即学习</a> <span>500次学习</span> </dd> </dl> </li> <li> <a href="/course/57.html" title="JavaScript正则表达式基础与实战" class="img_box"> <img loading="lazy" src="/uploads/20221226/bbe4083bb3cb0dd135fb02c31c3785fb.jpg" onerror="this.onerror='';this.src='/assets/images/moren/morentu.png'" alt="JavaScript正则表达式基础与实战"> </a> <dl> <dt class="lineOverflow"> JavaScript正则表达式基础与实战 </dt> <dd class="cont1 lineOverflow">在任何一门编程语言中,正则表达式,都是一项重要的知识,它提供了高效的字符串匹配与捕获机制,可以极大的简化程序设计。</dd> <dd class="cont2"> <a href="/course/57.html" title="JavaScript正则表达式基础与实战" class="toStudy">立即学习</a> <span>487次学习</span> </dd> </dl> </li> <li> <a href="/course/28.html" title="从零制作响应式网站—Grid布局" class="img_box"> <img loading="lazy" src="/uploads/20221223/ac110f88206daeab6c0cf38ebf5fe9ed.jpg" onerror="this.onerror='';this.src='/assets/images/moren/morentu.png'" alt="从零制作响应式网站—Grid布局"> </a> <dl> <dt class="lineOverflow"> 从零制作响应式网站—Grid布局 </dt> <dd class="cont1 lineOverflow">本系列教程将展示从零制作一个假想的网络科技公司官网，分为导航，轮播，关于我们，成功案例，服务流程，团队介绍，数据部分，公司动态，底部信息等内容区块。网站整体采用CSSGrid布局，支持响应式，有流畅过渡和展现动画。</dd> <dd class="cont2"> <a href="/course/28.html" title="从零制作响应式网站—Grid布局" class="toStudy">立即学习</a> <span>485次学习</span> </dd> </dl> </li> </ul> </div> </div> <!-- footer --> <link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet"> <div class="footer"> <ul> <li ><a href="/" class="aLightGray"><em class="material-icons">home</em><span>首页</span></a></li> <li class="curr"><a href="/articlelist.html" class="aLightGray"><em class="material-icons">menu_book</em><span>阅读</span></a></li> <li ><a href="/courselist.html" class="aLightGray"><em class="material-icons">school</em><span>课程</span></a></li> <li ><a href="/ai.html" class="aLightGray"><em class="material-icons">smart_toy</em><span>AI助手</span></a></li> <li ><a href="/user.html" class="aLightGray"><em class="material-icons">person</em><span>我的</span></a></li> </ul> </div> <script src="/assets/js/require.js" data-main="/assets/js/require-frontend.js?v=1671101972"></script> <script> var _hmt = _hmt || []; (function() { var hm = document.createElement("script"); hm.src = "https://hm.baidu.com/hm.js?3dc5666f6478c7bf39cd5c91e597423d"; var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(hm, s); })(); </script> <script src="/assets/js/SyntaxHighlighter/shCore.js?3.1.1"></script> <script> document.addEventListener('DOMContentLoaded', function () { if (document.querySelector('.cont pre')) { SyntaxHighlighter.all(); } }); </script> </body> </html>