【转】富文本信息在html展示转码
转:https://blog.csdn.net/m0_38134431/article/details/84950653
<script> var HtmlUtil = { /*1.用浏览器内部转换器实现html转码*/ htmlEncode:function (html){ //1.首先动态创建一个容器标签元素,如DIV var temp = document.createElement ("div"); //2.然后将要转换的字符串设置为这个元素的innerText(ie支持)或者textContent(旧版火狐,google支持) (temp.textContent != undefined ) ? (temp.textContent = html) : (temp.innerText = html); //3.最后返回这个元素的innerHTML,即得到经过HTML编码转换的字符串了 var output = temp.innerHTML; temp = null; return output; }, /*2.用浏览器内部转换器实现html解码*/ htmlDecode:function (text){ //1.首先动态创建一个容器标签元素,如DIV var temp = document.createElement("div"); //2.然后将要转换的字符串设置为这个元素的innerHTML(ie,火狐,google都支持) temp.innerHTML = text; //3.最后返回这个元素的innerText(ie支持)或者textContent(火狐,google支持),即得到经过HTML解码的字符串了。 var output = temp.innerText || temp.textContent; temp = null; return output; }, /*3.用正则表达式实现html转码*/ htmlEncodeByRegExp:function (str){ var s = ""; if(str.length == 0) return ""; s = str.replace(/&/g,"&"); s = s.replace(/</g,"<"); s = s.replace(/>/g,">"); s = s.replace(/\s/g," "); s = s.replace(/\'/g,"'"); s = s.replace(/\"/g,"""); return s; }, /*4.用正则表达式实现html解码*/ htmlDecodeByRegExp:function (str){ var s = ""; if(str.length == 0) return ""; s = str.replace(/&/g,"&"); s = s.replace(/</g,"<"); s = s.replace(/>/g,">"); s = s.replace(/ /g," "); s = s.replace(/'/g,"\'"); s = s.replace(/"/g,"\""); return s; } }; // 使用举例 // 用浏览器内部转换器实现html转码 var html = " <div>'我们在哪里'</div> " var enCodehtml = HtmlUtil.htmlEncode(html); console.log(enCodehtml); // <div>'我们在哪里'</div> // 用浏览器内部转换器实现html解码 var decodeHtml = HtmlUtil.htmlDecode(enCodehtml); console.log(decodeHtml); // <div>'我们在哪里'</div> // ———————————————————————————————————————————————————————————————— // 用正则表达式实现html转码 var html2 = "<div> winne'hello'</div>"; var RegExpEnCodehtml = HtmlUtil.htmlEncodeByRegExp(html2) console.log(RegExpEnCodehtml); // <div> winne'hello'</div> // 用正则表达式实现html解码 var RegExpDecodeHtml = HtmlUtil.htmlDecodeByRegExp(RegExpEnCodehtml); console.log(RegExpDecodeHtml); // <div> winne'hello'</div> </script>