微信小程序 富文本转文本实例详解

 <view>
   <text>{{content}}</text>
  </view>

convertHtmlToText: function convertHtmlToText(inputText) {
  var returnText = "" + inputText;
  returnText = returnText.replace(/<\/div>/ig, '\r\n');
  returnText = returnText.replace(/<\/li>/ig, '\r\n');
  returnText = returnText.replace(/<li>/ig, ' * ');
  returnText = returnText.replace(/<\/ul>/ig, '\r\n');
  //-- remove BR tags and replace them with line break
  returnText = returnText.replace(/<br\s*[\/]?>/gi, "\r\n");

  //-- remove P and A tags but preserve what's inside of them
  returnText=returnText.replace(/<p.*?>/gi, "\r\n");
  returnText=returnText.replace(/<a.*href="(.*?)".*>(.*?)<\/a>/gi, " $2 ($1)");

  //-- remove all inside SCRIPT and STYLE tags
  returnText=returnText.replace(/<script.*>[\w\W]{1,}(.*?)[\w\W]{1,}<\/script>/gi, "");
  returnText=returnText.replace(/<style.*>[\w\W]{1,}(.*?)[\w\W]{1,}<\/style>/gi, "");
  //-- remove all else
  returnText=returnText.replace(/<(?:.|\s)*?>/g, "");

  //-- get rid of more than 2 multiple line breaks:
  returnText=returnText.replace(/(?:(?:\r\n|\r|\n)\s*){2,}/gim, "\r\n\r\n");

  //-- get rid of more than 2 spaces:
  returnText = returnText.replace(/ +(?= )/g,'');

  //-- get rid of html-encoded characters:
  returnText=returnText.replace(/&nbsp;/gi," ");
  returnText=returnText.replace(/&amp;/gi,"&");
  returnText=returnText.replace(/&quot;/gi,'"');
  returnText=returnText.replace(/&lt;/gi,'<');
  returnText=returnText.replace(/&gt;/gi,'>');

  return returnText;
}

var app = getApp()//获取app小程序实例
 onLoad: function (options) {
    wx.request({
   url: 'http://example.com/api' + options.id+'.json',
   headers: {
    'Content-Type': 'application/json'
   },
   success: function (res) {
    res.data.content = app.convertHtmlToText(res.data.content )
     that.setData({
      art: res.data.content
     })
     console.log(res.data)
   }
  })
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