Resolves an issue where JSON contains HTML tags that cannot be displayed

Source: Internet
Author: User

Tags: cab cdb contains info via SHA page play CTI

The main is to escape the JSON unrecognized characters

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;
}
The returned data will be displayed as expected, and the following is the converted content:
Jsontext= ' {"Jqry": [{"id": "121", "userid": "0", "status": "1", "filename": "", "url": "333333333", "title": "Aaaaaaa", " Type ":" Watchtv "," seq ":" 1 "," remark ":" Remarktext "," Content ":" <p>//r//n//t<object classid=//"CLSID: d27cdb6e-ae6d-11cf-96b8-444553540000//"codebase=//" http://download.macromedia.com/pub/shockwave/cabs/flash/ swflash.cab#version=6,0,40,0//"><param name=//" quality//"value=//" high//"/><param name=//" movie//" value=//"http://www.xxx.com/vod/COD4_Ep1.swf//"/><embed pluginspage=//"http://www.macromedia.com/go/ getflashplayer//"quality=//" high//"src=//" http://www.xxx.com/vod/COD4_Ep1.swf//"type=//" application/ x-shockwave-flash//"></embed></object></p>//r//n"}]} ';



HTML Conversion Functions
public string changestring (String str)
{
STR contains HTML-tagged text
str = str. Replace ("<", "&lt;");
str = str. Replace (">", "&gt;");
str = str. Replace ("", "&nbsp;");
str = str. Replace ("\ n", "<br>");
str = str. Replace ("&", "&amp;");
return str;
}
=======================

JS character filter HTML tag mutual transfer function
function HTMLEncode (str) {
str = str.replace (/&/g, ' &amp; ');
str = str.replace (/</g, ' &lt; ');
str = str.replace (/>/g, ' &gt; ');
str = str.replace (/(?: t| |v|r) *n/g, ' <br/> ');
str = str.replace (//g, ' &nbsp; ‘);
str = str.replace (/t/g, ' &nbsp; &nbsp; ‘);
str = str.replace (/x22/g, ' &quot; ');
str = str.replace (/x27/g, ' & #39; ');
return str;
}

function HtmlDecode (str) {
str = str.replace (/&amp;/gi, ' & ');
str = str.replace (/&nbsp;/gi, ");
str = str.replace (/&quot;/gi, ' "');
str = str.replace (/& #39;/g, "'");
str = str.replace (/&lt;/gi, ' < ');
str = str.replace (/&gt;/gi, ' > ');
str = str.replace (/<br[^>]*> (?:( RN) |r|n)?/gi, ' n ');
return str;
}

function Textencode (str) {
str = str.replace (/&amp;/gi, ' & ');
str = str.replace (/</g, ' &lt; ');
str = str.replace (/>/g, ' &gt; ');
return str;
}

function Textdecode (str) {
str = str.replace (/&amp;/gi, ' & ');
str = str.replace (/&lt;/gi, ' < ');
str = str.replace (/&gt;/gi, ' > ');
return str;
}


Example 1

Rt:
The JSON data returned is as follows, with an HTML tag that cannot be displayed,

{"Articlelist": [{"ArticleID": 6, "title": "Goodbye Goodbye", "Author": "Superman", "Content": "BBBBBBBBBBBB", "hits": "0"}, {" ArticleID ": 7," "title": "333", "Author": "Superman", "Content": "333333333333333333333333333333333333", "hits": "0"}, {" ArticleID ": 1," "title": "Assad", "Author": "Heshan", "Content": "Test", "hits": "0"}, {"ArticleID": 2, "title": "Assad", "author ":" Superman "," Content ":" 123<img src= "Http://localhost:8080/jpkc/admin/kindeditor/plugins/emoticons/0.gif" Border= "0"/><br/> "," hits ":" 0 "},{" ArticleID ": 3," title ":" TEST1 "," Author ":" Superman "," Content ":" TEST1 <br/> "," hits ":" 0 "},{" ArticleID ": 4," title ":" Test "," Author ":" Superman "," Content ":" Test function!!!! "," hits ":" 0 "}, {" ArticleID ": 5," "title": "Test!", "Author": "Superman", "Content": "KE.util.setFullHtml (' content ', ');", "hits": "0"},]}

Workaround:
"Content": "123<img src=" http://localhost:8080/jpkc/admin/kindeditor/plugins/emoticons/0.gif "border=" 0 "/> <br/> "
Switch
"Content": "123<img src= ' http://localhost:8080/jpkc/admin/kindeditor/plugins/emoticons/0.gif ' alt=" ' border= ' 0 ' /><br/> "

js Method: Str.replaceall ("\" "," ' ");

Example 2:

After passing the data to the client in JSON format from the server side, some special characters cannot be displayed directly when the HTML page is displayed via JS, such as "<b>msg</b> #" displayed in the HTML page via JS when the background is passed. , not msg #, because the content between < and > is treated as an HTML tag, and the # with the & Start is HTML entity, so the display is not normal.

The solution is very simple, in JS to render it to the HTML page before the conversion can be:

01 <script type="text/javascript">  
02 varstr = ‘<b>msg</b> #‘;  
03 document.all.div1.innerHTML=‘<pre>‘+str+‘</pre>‘;  
04   
05 //js中的字符串正常显示在HTML页面中  
06 String.prototype.displayHtml= function(){  
07     //将字符串转换成数组  
08     varstrArr = this.split(‘‘);  
09     //HTML页面特殊字符显示,空格本质不是,但多个空格时浏览器默认只显示一个,所以替换  
10     varhtmlChar="&<>";  
11     for(vari = 0; i< str.length;i++){  
12         //查找是否含有特殊的HTML字符  
13         if(htmlChar.indexOf(str.charAt(i)) !=-1){  
14             //如果存在,则将它们转换成对应的HTML实体  
15             switch(str.charAt(i)) {                          
16                 case‘<‘:  
17                     strArr.splice(i,1,‘<‘);  
18                     break;  
19                 case‘>‘:  
20                     strArr.splice(i,1,‘>‘);  
21                     break;  
22                 case‘&‘:  
23                     strArr.splice(i,1,‘&‘);  
24             }  
25         }  
26     }  
27     returnstrArr.join(‘‘);  
28 }  
29 alert(str.displayHtml());  
30 document.all.div2.innerHTML=str.displayHtml();  

31 </script> 

Resolves an issue where JSON contains HTML tags that cannot be displayed

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