读取数据库的内容时突然跳出"、
、 "这些HTML标签、字符,吓一跳;本来如果是写HTML、JS倒也没什么,但是写小程序事时,小程序中是没有这些html标签的
第一种方法:只能处理简单的HTML标签,img解释不了,连“ ;”也处理不了,好处就只有一方法 代码少,无须引入文件。
在 app.js 添加以下方法代码,作为公共方法,所有页面都可用
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(/ /gi, " ");
returnText = returnText.replace(/&/gi, "&");
returnText = returnText.replace(/"/gi, '"');
returnText = returnText.replace(/</gi, '<');
returnText = returnText.replace(/>/gi, '>');
return returnText;
},
在需要解析的 js 文件里调用方法
var app = getApp()
var content = app.convertHtmlToText(res.data.data.content);
**
在小程序中体验效果