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NavigationToggle__icon--closed"></span></span> <span class="NavigationItem"> <a href="/miniprogram/dev/framework/search/seo.html" class="NavigationItem__router-link"> 小程序搜索 </a>  </span></div> <ul class="NavigationLevel__children"><li><span class="NavigationItem"> <a href="/miniprogram/dev/framework/search/seo.html" class="NavigationItem__router-link"> 小程序搜索优化指南 </a>  </span></li><li><span class="NavigationItem"> <a href="/miniprogram/dev/framework/product/" class="NavigationItem__router-link"> 商品数据接入（内测） </a>  </span></li></ul></div></li></ul></div></div> </aside></div> <div class="page__wrp"><main class="page"><div class="page-inner" style="min-height:0px;"> <div id="docContent"><div class="Breadcrumb"></div> <div class="content custom"><h1 id="移动解析HttpDNS"><a href="#移动解析HttpDNS" class="header-anchor">#</a> 移动解析HttpDNS</h1> <p class="wedoc-support-tips"> 从基础库 <a href="https://developers.weixin.qq.com/miniprogram/dev/framework/compatibility.html" target="_blank">2.19.2</a> 开始支持 </p> <p>开发者调用<a href="../../api/network/request/wx.request.html">wx.request</a>时，可以开启移动解析HttpDNS服务。该服务基于Http协议向服务商的DNS服务器发送域名解析请求，替代了基于DNS协议向运营商Local DNS发起解析请求的传统方式，可以避免Local DNS造成的域名劫持和跨网访问问题，解决移动互联网服务中域名解析异常带来的困扰。</p> <h2 id="小程序开发者使用移动解析说明"><a href="#小程序开发者使用移动解析说明" class="header-anchor">#</a> 小程序开发者使用移动解析说明</h2> <ol><li>前往<a href="https://fuwu.weixin.qq.com/service/detail/00022476b70ac08df25cfcefc57015" target="_blank" rel="noopener noreferrer">微信服务市场<span></span></a>选购 HttpDNS 资源，并在服务详情页-接入文档获取Service ID。</li> <li>小程序调用<a href="../../api/network/request/wx.request.html">wx.request</a>，将enableHttpDNS参数设置为true，并在httpDNSServiceId参数中填入选用的服务商Service ID。</li></ol> <h3 id="代码示例"><a href="#代码示例" class="header-anchor">#</a> 代码示例</h3> <div class="language-js extra-class"><pre class="language-js"><code>wx<span class="token punctuation">.</span><span class="token function">request</span><span class="token punctuation">(</span><span class="token punctuation">{</span> <span class="token literal-property property">url</span><span class="token operator">:</span> <span class="token string">'example.php'</span><span class="token punctuation">,</span> <span class="token comment">//仅为示例，并非真实的接口地址</span> <span class="token literal-property property">enableHttpDNS</span><span class="token operator">:</span> <span class="token boolean">true</span><span class="token punctuation">,</span> <span class="token literal-property property">httpDNSServiceId</span><span class="token operator">:</span> <span class="token string">'wxa410372c837a5f26'</span><span class="token punctuation">,</span> <span class="token function">success</span><span class="token punctuation">(</span><span class="token parameter">res</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> console<span class="token punctuation">.</span><span class="token function">log</span><span class="token punctuation">(</span><span class="token string">'request success'</span><span class="token punctuation">,</span> res<span class="token punctuation">)</span> <span class="token punctuation">}</span><span class="token punctuation">,</span> <span class="token function">fail</span><span class="token punctuation">(</span><span class="token parameter">res</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> console<span class="token punctuation">.</span><span class="token function">error</span><span class="token punctuation">(</span><span class="token string">'request fail'</span><span class="token punctuation">,</span> res<span class="token punctuation">)</span> <span class="token punctuation">}</span> <span class="token punctuation">}</span><span class="token punctuation">)</span> </code></pre></div><h3 id="计费说明"><a href="#计费说明" class="header-anchor">#</a> 计费说明</h3> <ol><li>使用服务所产生的费用会按照实际调用服务商接口情况进行计费，定价策略由服务提供方制定，开发者需自行前往微信服务市场进行购买、续费等操作。</li> <li>微信侧每次代开发者调用服务商接口时，微信侧会进行缓存，缓存策略由服务商返回的ttl决定，因此不一定每次调用request接口都会产生费用。</li> <li><font color="#990000">从基础库 v2.32.1 开始，若开发者的服务可用额度为0，仍在wx.request接口中声明使用服务商提供的移动解析能力时，会使用 localDNS 解析来兜底，并在 success 回调参数 exception.reasons ( reasons 是数组) 中返回 httpdns 欠费的错误信息和错误码，类似 <code>[{ "errMsg": "getDNSInfo:fail no enough httpdns quota", "errno": 602103 }]</code>。</font></li></ol> <h3 id="注意事项"><a href="#注意事项" class="header-anchor">#</a> 注意事项</h3> <ol><li>HttpDNS 不兼容网络代理</li></ol> <p>在基础库 v2.22.1 版本之前，当用户设备使用了网络代理，同时又开启了 enableHttpDNS 时，request 接口会调用失败，fail 回调 errMsg 中会包含 <code>ERR_PROXY_CONNECTION_FAILED</code> 字样，如 <code>{"errno":600001,"errMsg":"request:fail -130:net::ERR_PROXY_CONNECTION_FAILED"}</code> 或 <code>{"errno":600001,"errMsg":"request:fail errcode:-130 cronet_error_code:-130 error_msg:net::ERR_PROXY_CONNECTION_FAILED"}</code>。</p> <p>为解决此问题，从基础库 v2.22.1 开始，若用户使用了网络代理，基础库会主动强制关闭 enableHttpDNS。开发者也可以通过 wx.getNetworkType 接口检查用户是否开启了网络代理。用法：</p> <div class="language-js extra-class"><pre class="language-js"><code>wx<span class="token punctuation">.</span><span class="token function">getNetworkType</span><span class="token punctuation">(</span><span class="token punctuation">{</span> <span class="token function">success</span><span class="token punctuation">(</span><span class="token parameter">res</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> console<span class="token punctuation">.</span><span class="token function">log</span><span class="token punctuation">(</span>res<span class="token punctuation">.</span>hasSystemProxy<span class="token punctuation">)</span> <span class="token comment">// 开启网络代理时为 true，否则为 false</span> <span class="token punctuation">}</span> <span class="token punctuation">}</span><span class="token punctuation">)</span> </code></pre></div><h3 id="HttpDNS-相关错误码"><a href="#HttpDNS-相关错误码" class="header-anchor">#</a> HttpDNS 相关错误码</h3> <div class="table-wrp"><table><thead><tr><th style="text-align:left">错误码</th> <th style="text-align:left">说明</th></tr></thead> <tbody><tr><td style="text-align:left">600000</td> <td style="text-align:left">网络错误</td></tr> <tr><td style="text-align:left">602000</td> <td style="text-align:left">网络请求错误</td></tr> <tr><td style="text-align:left">602001</td> <td style="text-align:left">系统错误</td></tr> <tr><td style="text-align:left">602002</td> <td style="text-align:left">http请求httpdns服务商错误</td></tr> <tr><td style="text-align:left">602101</td> <td style="text-align:left">小程序未在服务市场购买httpdns服务</td></tr> <tr><td style="text-align:left">602102</td> <td style="text-align:left">小程序在httpdns服务市场资源包过期</td></tr> <tr><td style="text-align:left">602103</td> <td style="text-align:left">小程序在httpdns服务市场额度不足</td></tr> <tr><td style="text-align:left">602104</td> <td style="text-align:left">httpdns服务商返回结果为空</td></tr> <tr><td style="text-align:left">602105</td> <td style="text-align:left">调用httpdns服务商结果超时</td></tr> <tr><td style="text-align:left">602106</td> <td style="text-align:left">httpdns服务商返回数据不合法</td></tr> <tr><td style="text-align:left">602107</td> <td style="text-align:left">httpdns域名解析结果为空</td></tr> <tr><td style="text-align:left">602108</td> <td style="text-align:left">不支持的httpdns服务商id</td></tr></tbody></table></div><h2 id="移动解析服务提供商接入说明"><a href="#移动解析服务提供商接入说明" class="header-anchor">#</a> 移动解析服务提供商接入说明</h2> <p>为了保护微信客户端的安全，小程序使用的移动解析服务需要通过微信侧安全认证，认证后可在微信服务市场上架。</p> <p>微信侧欢迎更多服务商为小程序提供移动解析服务。申请接入按照以下模板发送邮件，我们会有专人与您联系。</p> <div class="language-md extra-class"><pre class="language-md"><code>收件人：servicemarket@tencent.com 主题：【上架服务市场】XXX（服务商）申请上架HttpDNS服务正文：需要写明服务商的基本资料，包括不仅限于服务商名称、业务范围、技术证书、合作意向、联系方式等 </code></pre></div></div> <div class="fixed-translate" style="display:none;"><span>The translations are provided by WeChat Translation and are for reference only. 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