捞起月亮的渔民 發表於 2020-6-19 20:45:00

uni-app如何解析html标签

<h2><span id="一-导入rechtextjs">一、导入rechText.js</span></h2>
<p>参考网上资料uni-app如何完美解析富文本内容<br>核心内容如下:</p>
<div class="cnblogs_code">
<pre><span style="color: rgba(0, 128, 0, 1)">/*</span><span style="color: rgba(0, 128, 0, 1)">
graceUI rich-text 加强工具
link : graceui.hcoder.net
author : 5213606@qq.com 深海

</span><span style="color: rgba(0, 128, 0, 1)">*/</span>

<span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 正则变量</span>
<span style="color: rgba(0, 0, 255, 1)">var</span><span style="color: rgba(0, 0, 0, 1)"> graceRichTextReg;

</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 批量替换的样式 [ 根据项目需求自行设置 ]</span>
<span style="color: rgba(0, 0, 255, 1)">var</span> GRT =<span style="color: rgba(0, 0, 0, 1)"> [
    </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> div 样式</span>
    [<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">div</span><span style="color: rgba(128, 0, 0, 1)">'</span>, <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">line-height:2em;</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">],
    </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> h1 样式</span>
    [<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">h1</span><span style="color: rgba(128, 0, 0, 1)">'</span>, <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">font-size:3em; line-height:1.5em;</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">],
    </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> h2 样式</span>
    [<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">h2</span><span style="color: rgba(128, 0, 0, 1)">'</span>, <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">font-size:2em; line-height:1.8em;</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">],
    </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> h3 样式</span>
    [<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">h3</span><span style="color: rgba(128, 0, 0, 1)">'</span>, <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">font-size:1.6em; line-height:2em;</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">],
    </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> h4 样式</span>
    [<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">h4</span><span style="color: rgba(128, 0, 0, 1)">'</span>, <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">font-size:1.2em; line-height:2em;</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">],
    </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> h5 样式</span>
    [<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">h5</span><span style="color: rgba(128, 0, 0, 1)">'</span>, <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">font-size:1em; line-height:2em;</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">],
    </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> h6 样式</span>
    [<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">h6</span><span style="color: rgba(128, 0, 0, 1)">'</span>, <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">font-size:0.9em; line-height:2em;</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">],
    </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> p 样式</span>
    [<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">p</span><span style="color: rgba(128, 0, 0, 1)">'</span>, <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">font-size:1em; line-height:2em;</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">],
    </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> b 样式</span>
    [<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">b</span><span style="color: rgba(128, 0, 0, 1)">'</span>, <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">font-size:1em; line-height:2em;</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">],
    </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> strong 样式</span>
    [<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">strong</span><span style="color: rgba(128, 0, 0, 1)">'</span>, <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">font-size:1em; line-height:2em;</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">],
    </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> code 样式</span>
    [<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">code</span><span style="color: rgba(128, 0, 0, 1)">'</span>, <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">font-size:1em; line-height:1.2em; background:#F6F7F8; padding:8px 2%; width:96%;</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">],
    </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> img 样式</span>
    [<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">img</span><span style="color: rgba(128, 0, 0, 1)">'</span>, <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">width:100%; margin:8px 0;</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">],
    </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> blockquote</span>
    [<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">blockquote</span><span style="color: rgba(128, 0, 0, 1)">'</span>, <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">font-size:1em; border-left:3px solid #D1D1D1; line-height:2em; border-radius:5px; background:#F6F7F8; padding:8px 2%;</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">],
    </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> li 样式</span>
    [<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">ul</span><span style="color: rgba(128, 0, 0, 1)">'</span>, <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">padding:5px 0; list-style:none; padding:0; margin:0;</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">],
    [</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">li</span><span style="color: rgba(128, 0, 0, 1)">'</span>, <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">line-height:1.5em; padding:5px 0; list-style:none; padding:0; margin:0; margin-top:10px;</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">],
    </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> table</span>
    [<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">table</span><span style="color: rgba(128, 0, 0, 1)">'</span>, <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">width:100%; border-left:1px solid #F2F3F4; border-top:1px solid #F2F3F4;</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">],
    [</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">th</span><span style="color: rgba(128, 0, 0, 1)">'</span>, <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">border-right:1px solid #F2F3F4; border-bottom:1px solid #F2F3F4;</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">],
    [</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">td</span><span style="color: rgba(128, 0, 0, 1)">'</span>, <span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">border-right:1px solid #F2F3F4; border-bottom:1px solid #F2F3F4; padding-left:5px;</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">]
];


module.exports </span>=<span style="color: rgba(0, 0, 0, 1)"> {
    format : function(html){
      html </span>= html.replace(/&lt;pre.*pre&gt;?/<span style="color: rgba(0, 0, 0, 1)">gis, function(word){
            word </span>=word.replace(/[\n]/gi,<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">&lt;br /&gt;</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">);
            word </span>=word.replace(/    /gi,<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">&lt;span style="padding-left:2em;"&gt;&lt;/span&gt;</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">);
            </span><span style="color: rgba(0, 0, 255, 1)">return</span> word.replace(/[\t]/gi, <span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">&lt;span style="padding-left:2em;"&gt;&lt;/span&gt;</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">);
      });
      html </span>= html.replace(/&lt;pre/gi, <span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">&lt;p style="font-size:1em; margin:12px 0; line-height:1.2em; background:#F6F7F8; border-radius:5px; padding:8px 4%; width:92%;"</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">);
      html </span>= html.replace(/&lt;\/pre/gi,<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">&lt;/p</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">);
      </span><span style="color: rgba(0, 0, 255, 1)">for</span>(let i = <span style="color: rgba(128, 0, 128, 1)">0</span>; i &lt; GRT.length; i++<span style="color: rgba(0, 0, 0, 1)">){
            graceRichTextReg </span>= <span style="color: rgba(0, 0, 255, 1)">new</span> RegExp(<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">&lt;</span><span style="color: rgba(128, 0, 0, 1)">'</span>+GRT[<span style="color: rgba(128, 0, 128, 1)">0</span>]+<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">&gt;|&lt;</span><span style="color: rgba(128, 0, 0, 1)">'</span>+GRT[<span style="color: rgba(128, 0, 128, 1)">0</span>]+<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)"> (.*?)&gt;</span><span style="color: rgba(128, 0, 0, 1)">'</span>, <span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">gi</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">);
            html </span>=<span style="color: rgba(0, 0, 0, 1)"> html.replace(graceRichTextReg , function(word){
                </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 分析 dom 上是否带有 style=""</span>
                <span style="color: rgba(0, 0, 255, 1)">if</span>(word.indexOf(<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">style=</span><span style="color: rgba(128, 0, 0, 1)">'</span>) != -<span style="color: rgba(128, 0, 128, 1)">1</span><span style="color: rgba(0, 0, 0, 1)">){
                  </span><span style="color: rgba(0, 0, 255, 1)">var</span> regIn = <span style="color: rgba(0, 0, 255, 1)">new</span> RegExp(<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">&lt;</span><span style="color: rgba(128, 0, 0, 1)">'</span> + GRT[<span style="color: rgba(128, 0, 128, 1)">0</span>] + <span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">(.*?)style="(.*?)"(.*?)(/?)&gt;</span><span style="color: rgba(128, 0, 0, 1)">'</span>, <span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">gi</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">);
                  </span><span style="color: rgba(0, 0, 255, 1)">return</span> word.replace(regIn, <span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">&lt;</span><span style="color: rgba(128, 0, 0, 1)">'</span>+ GRT[<span style="color: rgba(128, 0, 128, 1)">0</span>] +<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">$1style="$2 </span><span style="color: rgba(128, 0, 0, 1)">'</span> + GRT[<span style="color: rgba(128, 0, 128, 1)">1</span>] +<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">"$3$4&gt;</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">);
                }</span><span style="color: rgba(0, 0, 255, 1)">else</span><span style="color: rgba(0, 0, 0, 1)">{
                  </span><span style="color: rgba(0, 0, 255, 1)">var</span> regIn = <span style="color: rgba(0, 0, 255, 1)">new</span> RegExp(<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">&lt;</span><span style="color: rgba(128, 0, 0, 1)">'</span> + GRT[<span style="color: rgba(128, 0, 128, 1)">0</span>] + <span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">(.*?)(/?)&gt;</span><span style="color: rgba(128, 0, 0, 1)">'</span>, <span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">gi</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">);
                  </span><span style="color: rgba(0, 0, 255, 1)">return</span> word.replace(regIn, <span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">&lt;</span><span style="color: rgba(128, 0, 0, 1)">'</span>+ GRT[<span style="color: rgba(128, 0, 128, 1)">0</span>] +<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">$1 style="</span><span style="color: rgba(128, 0, 0, 1)">'</span> + GRT[<span style="color: rgba(128, 0, 128, 1)">1</span>] +<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">$2"&gt;</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">);
                }
            });
      }
      </span><span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)"> html;
    }
   
}</span></pre>
</div>
<h2><span id="二-uni-app引入rechtextjs">二、uni-app引入rechText.js</span></h2>
<div class="cnblogs_code">
<pre>import graceRichText <span style="color: rgba(0, 0, 255, 1)">from</span> <span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">../../../components/richText.js</span><span style="color: rgba(128, 0, 0, 1)">'</span>;</pre>
</div>
<h2><span id="三-核心渲染代码">三、核心渲染代码</span></h2>
<div class="cnblogs_code">
<pre>&lt;rich-text :nodes=<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">article</span><span style="color: rgba(128, 0, 0, 1)">"</span>&gt;&lt;/rich-text&gt;</pre>
</div>
<h2><span id="四-最终实现效果">四、最终实现效果</span></h2>
<p>使用uni-app转化小程序,效果图如下:<br><img src="https://developers-youcong.github.io/2020/06/18/uni-app%E5%A6%82%E4%BD%95%E8%A7%A3%E6%9E%90html%E6%A0%87%E7%AD%BE/01.png" alt="" width="undefined" height="undefined" title=""></p>
<p>浏览器手机调试,效果图如下:<br><img src="https://developers-youcong.github.io/2020/06/18/uni-app%E5%A6%82%E4%BD%95%E8%A7%A3%E6%9E%90html%E6%A0%87%E7%AD%BE/02.png" alt="" width="undefined" height="undefined" title=""></p><br><br>
来源:https://www.cnblogs.com/youcong/p/13166391.html
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