JS及JQuery对Html内容编码,Html转义

<script src="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;
}