html页面里面的标签转换

主要是将json无法识别的字符进行转义   

function dotran($str) {
        $str = str_replace('"','//"',$str);
        $str = str_replace("/r/n",'//r//n',$str);
        $str = str_replace("/t",'//t',$str);
        $str = str_replace("//",'//',$str);
        $str = str_replace("/b",'//b',$str);
        return $str;
    }
这样返回的数据就可以正常显示，下面是转换后的内容：
jsontext='{"jqry":[{"id":"121","userid":"0","status":"1","filename":"","url":"333333333","title":"aaaaaaa","type":"WatchTV","seq":"1","remark":"remarktext","content":"

//r//n//t

//r//n"}]}';

HTML转换函数
public string ChangeString(string str)
{
//str含有HTML标签的文本
str = str.Replace("<","<");
str = str.Replace(">",">");
str = str.Replace(" "," ");
str = str.Replace("\n","
");
str = str.Replace("&","&");
return str;
}
=======================

js字符过滤html标签互转函数
function htmlencode(str) {
 str = str.replace(/&/g, '&');
 str = str.replace(/  str = str.replace(/>/g, '>');
 str = str.replace(/(?:t| |v|r)*n/g, '
');
 str = str.replace(/  /g, '  ');
 str = str.replace(/t/g, '    ');
 str = str.replace(/x22/g, '"');
 str = str.replace(/x27/g, ''');
 return str;
}

function htmldecode(str) {
 str = str.replace(/&/gi, '&');
 str = str.replace(/ /gi, ' ');
 str = str.replace(/"/gi, '"');
 str = str.replace(/'/g, "'");
 str = str.replace(/</gi, '<');
 str = str.replace(/>/gi, '>');
 str = str.replace(/]*>(?:(rn)|r|n)?/gi, 'n');
 return str;
}

function textencode(str) {
 str = str.replace(/&/gi, '&');
 str = str.replace(/  str = str.replace(/>/g, '>');
 return str;
}

function textdecode(str) {
 str = str.replace(/&/gi, '&');
 str = str.replace(/</gi, '<');
 str = str.replace(/>/gi, '>');
 return str;
}

实例1

RT： 
返回的Json数据如下、带Html标签就无法显示了、 

{"articleList": [{"articleId":6,"title":"拜拜拜拜 吧","author":"superman","content":"BBBBBBBBBBBB","hits":"0"}, {"articleId":7,"title":"333","author":"superman","content":"333333333333333333333333333333333333","hits":"0"}, {"articleId":1,"title":"阿萨 德","author":"heshan","content":"test","hits":"0"}, {"articleId":2,"title":"阿萨德","author":"superman","content":"123
","hits":"0"},{"articleId":3,"title":"TEST1","author":"superman","content":"TEST1
","hits":"0"},{"articleId":4,"title":"测 试","author":"superman","content":"测试功能!!!!","hits":"0"}, {"articleId":5,"title":"test!","author":"superman","content":"KE.util.setFullHtml('content', '');","hits":"0"},]}

解决办法：
"content":"123
"
改为
"content":"123
"

js方法：str.replaceAll("\"","'");

实例2：

从服务器端以JSON格式将数据传递到客户端后，通过JS显示在HTML页面时，有一些特殊字符不能直接显示，如后台传递过来的是 'msg #' 通过JS显示在HTML页面中时，显示成了 msg # ，并不是msg #，这是由于<与>之间的内容看作是HTML标签了，而以&开头的 与#为HTML实体，所以显示不正常。

解决办法很简单，在JS将其渲染到HTML页面前转换一下即可：

01