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2018-05-16-originjsAjax.html
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2018-05-16-originjsAjax.html
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<!DOCTYPE html>
<html class="theme-next mist use-motion" lang="zh-Hans">
<head>
<meta charset="UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1"/>
<meta name="theme-color" content="#222">
<script src="/lib/pace/pace.min.js?v=1.0.2"></script>
<link href="/lib/pace/pace-theme-minimal.min.css?v=1.0.2" rel="stylesheet">
<meta http-equiv="Cache-Control" content="no-transform" />
<meta http-equiv="Cache-Control" content="no-siteapp" />
<link href="/lib/fancybox/source/jquery.fancybox.css?v=2.1.5" rel="stylesheet" type="text/css" />
<link href="/lib/font-awesome/css/font-awesome.min.css?v=4.6.2" rel="stylesheet" type="text/css" />
<link href="/css/main.css?v=5.1.4" rel="stylesheet" type="text/css" />
<link rel="apple-touch-icon" sizes="180x180" href="/images/apple-touch-icon-next.png?v=5.1.4">
<link rel="icon" type="image/png" sizes="32x32" href="/images/favicon-32x32-next.png?v=5.1.4">
<link rel="icon" type="image/png" sizes="16x16" href="/images/favicon-16x16-next.png?v=5.1.4">
<link rel="mask-icon" href="/images/logo.svg?v=5.1.4" color="#222">
<meta name="keywords" content="js," />
<link rel="alternate" href="/atom.xml" title="赖同学" type="application/atom+xml" />
<meta name="description" content="原生js实现Ajax1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465function ajax()&#123;var ajaxData = &#123; type:arguments[0].type">
<meta name="keywords" content="js">
<meta property="og:type" content="article">
<meta property="og:title" content="原生js实现Ajax">
<meta property="og:url" content="http://laibh.top/2018-05-16-originjsAjax.html">
<meta property="og:site_name" content="赖同学">
<meta property="og:description" content="原生js实现Ajax1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465function ajax()&#123;var ajaxData = &#123; type:arguments[0].type">
<meta property="og:locale" content="zh-Hans">
<meta property="og:updated_time" content="2022-03-04T10:00:38.452Z">
<meta name="twitter:card" content="summary">
<meta name="twitter:title" content="原生js实现Ajax">
<meta name="twitter:description" content="原生js实现Ajax1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465function ajax()&#123;var ajaxData = &#123; type:arguments[0].type">
<script type="text/javascript" id="hexo.configurations">
var NexT = window.NexT || {};
var CONFIG = {
root: '/',
scheme: 'Mist',
version: '5.1.4',
sidebar: {"position":"left","display":"post","offset":12,"b2t":false,"scrollpercent":true,"onmobile":false},
fancybox: true,
tabs: true,
motion: {"enable":true,"async":false,"transition":{"post_block":"fadeIn","post_header":"slideDownIn","post_body":"slideDownIn","coll_header":"slideLeftIn","sidebar":"slideUpIn"}},
duoshuo: {
userId: '0',
author: '博主'
},
algolia: {
applicationID: '1YNH8Y3MP9',
apiKey: '61c189facf700193dfcbb902369ce227',
indexName: 'MyBlog',
hits: {"per_page":10},
labels: {"input_placeholder":"想要找些什么呢","hits_empty":"${query} 没有被找到，再试试","hits_stats":"在 ${time} ms 查找了${hits}个结果"}
}
};
</script>
<link rel="canonical" href="http://laibh.top/2018-05-16-originjsAjax.html"/>
<title>原生js实现Ajax | 赖同学</title>
</head>
<body itemscope itemtype="http://schema.org/WebPage" lang="zh-Hans">
<div class="container sidebar-position-left page-post-detail">
<div class="headband"></div>
<header id="header" class="header" itemscope itemtype="http://schema.org/WPHeader">
<div class="header-inner"><div class="site-brand-wrapper">
<div class="site-meta ">
<div class="custom-logo-site-title">
<a href="/" class="brand" rel="start">
<span class="logo-line-before"><i></i></span>
<span class="site-title">赖同学</span>
<span class="logo-line-after"><i></i></span>
</a>
</div>
<h1 class="site-subtitle" itemprop="description"></h1>
</div>
<div class="site-nav-toggle">
<button>
<span class="btn-bar"></span>
<span class="btn-bar"></span>
<span class="btn-bar"></span>
</button>
</div>
</div>
<nav class="site-nav">
<ul id="menu" class="menu">
<li class="menu-item menu-item-home">
<a href="/" rel="section">
<i class="menu-item-icon fa fa-fw fa-home"></i> <br />
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</a>
</li>
<li class="menu-item menu-item-tags">
<a href="/tags/" rel="section">
<i class="menu-item-icon fa fa-fw fa-tags"></i> <br />
标签
</a>
</li>
<li class="menu-item menu-item-categories">
<a href="/categories/" rel="section">
<i class="menu-item-icon fa fa-fw fa-th"></i> <br />
分类
</a>
</li>
<li class="menu-item menu-item-archives">
<a href="/archives/" rel="section">
<i class="menu-item-icon fa fa-fw fa-archive"></i> <br />
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</a>
</li>
<li class="menu-item menu-item-sitemap">
<a href="/sitemap.xml" rel="section">
<i class="menu-item-icon fa fa-fw fa-sitemap"></i> <br />
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</a>
</li>
<li class="menu-item menu-item-guestbook">
<a href="/guestbook" rel="section">
<i class="menu-item-icon fa fa-fw fa-comment"></i> <br />
留言
</a>
</li>
<li class="menu-item menu-item-search">
<a href="javascript:;" class="popup-trigger">
<i class="menu-item-icon fa fa-search fa-fw"></i> <br />
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</a>
</li>
</ul>
<div class="site-search">
<div class="algolia-popup popup search-popup">
<div class="algolia-search">
<div class="algolia-search-input-icon">
<i class="fa fa-search"></i>
</div>
<div class="algolia-search-input" id="algolia-search-input"></div>
</div>
<div class="algolia-results">
<div id="algolia-stats"></div>
<div id="algolia-hits"></div>
<div id="algolia-pagination" class="algolia-pagination"></div>
</div>
<span class="popup-btn-close">
<i class="fa fa-times-circle"></i>
</span>
</div>
</div>
</nav>
</div>
</header>
<main id="main" class="main">
<div class="main-inner">
<div class="content-wrap">
<div id="content" class="content">
<div id="posts" class="posts-expand">
<article class="post post-type-normal" itemscope itemtype="http://schema.org/Article">
<div class="post-block">
<link itemprop="mainEntityOfPage" href="http://laibh.top/2018-05-16-originjsAjax.html">
<span hidden itemprop="author" itemscope itemtype="http://schema.org/Person">
<meta itemprop="name" content="赖彬鸿">
<meta itemprop="description" content="">
<meta itemprop="image" content="/images/myPhoto.jpg">
</span>
<span hidden itemprop="publisher" itemscope itemtype="http://schema.org/Organization">
<meta itemprop="name" content="赖同学">
</span>
<header class="post-header">
<h2 class="post-title" itemprop="name headline">原生js实现Ajax</h2>
<div class="post-meta">
<span class="post-time">
<span class="post-meta-item-icon">
<i class="fa fa-calendar-o"></i>
</span>
<span class="post-meta-item-text">发表于</span>
<time title="创建于" itemprop="dateCreated datePublished" datetime="2018-05-16T19:41:32+08:00">
2018-05-16
</time>
<span class="post-meta-divider">|</span>
<span class="post-meta-item-icon">
<i class="fa fa-calendar-check-o"></i>
</span>
<span class="post-meta-item-text">更新于:</span>
<time title="更新于" itemprop="dateModified" datetime="2022-03-04T18:00:38+08:00">
2022-03-04
</time>
</span>
<span class="post-category" >
<span class="post-meta-divider">|</span>
<span class="post-meta-item-icon">
<i class="fa fa-folder-o"></i>
</span>
<span class="post-meta-item-text">分类于</span>
<span itemprop="about" itemscope itemtype="http://schema.org/Thing">
<a href="/categories/javaScript相关/" itemprop="url" rel="index">
<span itemprop="name">javaScript相关</span>
</a>
</span>
</span>
<span id="/2018-05-16-originjsAjax.html" class="leancloud_visitors" data-flag-title="原生js实现Ajax">
<span class="post-meta-divider">|</span>
<span class="post-meta-item-icon">
<i class="fa fa-eye"></i>
</span>
<span class="post-meta-item-text">阅读次数:</span>
<span class="leancloud-visitors-count"></span>
</span>
<div class="post-wordcount">
<span class="post-meta-item-icon">
<i class="fa fa-file-word-o"></i>
</span>
<span class="post-meta-item-text">字数统计:</span>
<span title="字数统计">
248
</span>
</div>
</div>
</header>
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<h1 id="原生js实现Ajax"><a href="#原生js实现Ajax" class="headerlink" title="原生js实现Ajax"></a>原生js实现Ajax</h1><figure class="highlight javascript"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br></pre></td><td class="code"><pre><span class="line"><span class="function"><span class="keyword">function</span> <span class="title">ajax</span>(<span class="params"></span>)</span>{</span><br><span class="line"><span class="keyword">var</span> ajaxData = {</span><br><span class="line"> type:<span class="built_in">arguments</span>[<span class="number">0</span>].type || <span class="string">'GET'</span>,</span><br><span class="line"> url：<span class="built_in">arguments</span>[<span class="number">0</span>].url || <span class="string">''</span>,</span><br><span class="line"> aysnc:<span class="built_in">arguments</span>[<span class="number">0</span>].async || <span class="string">'true'</span>,</span><br><span class="line"> data:<span class="built_in">arguments</span>[<span class="number">0</span>].data || <span class="literal">null</span>,</span><br><span class="line"> dataType:<span class="built_in">arguments</span>[<span class="number">0</span>].dataType || <span class="string">'text'</span>,</span><br><span class="line"> contentType:<span class="built_in">arguments</span>[<span class="number">0</span>].contentType || <span class="string">'application/x-www-form-urlencoded'</span>,</span><br><span class="line"> beforeSend:<span class="built_in">arguments</span>[<span class="number">0</span>].beforeSend || <span class="function"><span class="keyword">function</span>(<span class="params"></span>)</span>{},</span><br><span class="line"> success:<span class="built_in">arguments</span>[<span class="number">0</span>].success || <span class="function"><span class="keyword">function</span>(<span class="params"></span>)</span>{},</span><br><span class="line"> error:<span class="built_in">arguments</span>[<span class="number">0</span>].error || <span class="function"><span class="keyword">function</span>(<span class="params"></span>)</span>{},</span><br><span class="line">}</span><br><span class="line">ajaxData.beforeSend(){</span><br><span class="line"> <span class="keyword">var</span> xhr = createxmlHttpRequest();</span><br><span class="line"> xhr.responseType = ajaxData.dataType;</span><br><span class="line"> xhr.open(ajaxData.type,ajaxData.url,ajaxData.async);</span><br><span class="line"> xhr.setRequestHeader(<span class="string">"Content-Type"</span>,ajaxData.contentType); </span><br><span class="line"> xhr.send(convertData(ajaxData.data)); </span><br><span class="line"> xhr.onreadystatechange = <span class="function"><span class="keyword">function</span>(<span class="params"></span>) </span>{ </span><br><span class="line"> <span class="keyword">if</span> (xhr.readyState == <span class="number">4</span>) { </span><br><span class="line"> <span class="keyword">if</span>(xhr.status == <span class="number">200</span>){ </span><br><span class="line"> ajaxData.success(xhr.response) </span><br><span class="line"> }<span class="keyword">else</span>{ </span><br><span class="line"> ajaxData.error() </span><br><span class="line"> } </span><br><span class="line"> } </span><br><span class="line"> }</span><br><span class="line">}</span><br><span class="line"><span class="function"><span class="keyword">function</span> <span class="title">createxmlHttpRequest</span>(<span class="params"></span>) </span>{ </span><br><span class="line"> <span class="keyword">if</span> (<span class="built_in">window</span>.ActiveXObject) { </span><br><span class="line"> <span class="keyword">return</span> <span class="keyword">new</span> ActiveXObject(<span class="string">"Microsoft.XMLHTTP"</span>); </span><br><span class="line"> } <span class="keyword">else</span> <span class="keyword">if</span> (<span class="built_in">window</span>.XMLHttpRequest) { </span><br><span class="line"> <span class="keyword">return</span> <span class="keyword">new</span> XMLHttpRequest(); </span><br><span class="line"> } </span><br><span class="line">} </span><br><span class="line"><span class="function"><span class="keyword">function</span> <span class="title">convertData</span>(<span class="params">data</span>)</span>{ </span><br><span class="line"> <span class="keyword">if</span>( <span class="keyword">typeof</span> data === <span class="string">'object'</span> ){ </span><br><span class="line"> <span class="keyword">var</span> convertResult = <span class="string">""</span> ; </span><br><span class="line"> <span class="keyword">for</span>(<span class="keyword">var</span> c <span class="keyword">in</span> data){ </span><br><span class="line"> convertResult+= c + <span class="string">"="</span> + data[c] + <span class="string">"&"</span>; </span><br><span class="line"> } </span><br><span class="line"> convertResult=convertResult.substring(<span class="number">0</span>,convertResult.length<span class="number">-1</span>) </span><br><span class="line"> <span class="keyword">return</span> convertResult; </span><br><span class="line"> }<span class="keyword">else</span>{ </span><br><span class="line"> <span class="keyword">return</span> data; </span><br><span class="line"> } </span><br><span class="line">}</span><br><span class="line">}</span><br><span class="line"></span><br><span class="line"><span class="comment">// 调用</span></span><br><span class="line">ajax({ </span><br><span class="line"> type:<span class="string">"POST"</span>, </span><br><span class="line"> url:<span class="string">"ajax.php"</span>, </span><br><span class="line"> dataType:<span class="string">"json"</span>, </span><br><span class="line"> data:{<span class="string">"val1"</span>:<span class="string">"abc"</span>,<span class="string">"val2"</span>:<span class="number">123</span>,<span class="string">"val3"</span>:<span class="string">"456"</span>}, </span><br><span class="line"> beforeSend:<span class="function"><span class="keyword">function</span>(<span class="params"></span>)</span>{ </span><br><span class="line"> <span class="comment">//some js code </span></span><br><span class="line"> }, </span><br><span class="line"> success:<span class="function"><span class="keyword">function</span>(<span class="params">msg</span>)</span>{ </span><br><span class="line"> <span class="built_in">console</span>.log(msg) </span><br><span class="line"> }, </span><br><span class="line"> error:<span class="function"><span class="keyword">function</span>(<span class="params"></span>)</span>{ </span><br><span class="line"> <span class="built_in">console</span>.log(<span class="string">"error"</span>) </span><br><span class="line"> } </span><br><span class="line">})</span><br></pre></td></tr></table></figure>
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