JS及JQuery对Html内容编码,Html转义

 /** JQuery Html Encoding、Decoding * 原理是利用JQuery自带的html()和text()函数可以转义Html字符 * 虚拟一个Div通过赋值和取值来得到想要的Html编码或者解码 */ <script src="http://libs.baidu.com/jquery/1.9.0/jquery.js"></script> <script type="text/javascript"> //Html编码获取Html转义实体 function htmlEncode(value){  return $('<div/>').text(value).html(); } //Html解码获取Html实体 function htmlDecode(value){  return $('<div/>').html(value).text(); } </script> 

<script type="text/javascript"> //获取Html转义字符 function htmlEncode( html ) {  return document.createElement( 'a' ).appendChild(   document.createTextNode( html ) ).parentNode.innerHTML; }; //获取Html function htmlDecode( html ) {  var a = document.createElement( 'a' ); a.innerHTML = html;  return a.textContent; }; </script> 

//编码  function html_encode(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, """);  s = s.replace(//n/g, "<br>");  return s;  }  //解码  function html_decode(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, "/"");  s = s.replace(/<br>/g, "/n");  return s;  }