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[zt]客服端的HTMLdecode和HTMLencode---in javascript

2008-07-14 11:37 330 查看
今天碰到一个问题,在要通过ajax实现分页,需要对ajaxMethod返回的Html代码端重新组装,一段是分页,另一段是查询的结果,这样问题就来,如何分离这两端代码?我想到的办法就是在ajaxMethod里构造一个javascript对象,把这两段代码加到对象的属性值中如此模样


“//construct javascript object


var objHTML = new Object();


objHTML.firstSection = ?;


objHTML.secondSection = ?;


"然后在前台的callback函数中通过eval(strCode)构造返回的javascript对象,接下来更新相应的HTML块就非常简单啦。
在我替换上面代码中的问号处,本来是换上两段HTML代码块字符串就可以啦,但我想如果在这里给他们加上encode,那么在前台如何decode呢,我试了在后台加上Server.URLEncode(strHtml),前台需要套uridecode()和unecape(),但里面的空格还是‘+’,在加一个replace(//+/g,' ')就可以搞定啦,这样潜在的一个问题就是如果内容里面本来就有'+'会有问题的,于是我在网上搜了一下看看有没有更好的解决办法,结果发现一种很巧的办法,用HTML中的容器来实现。
javascript HTMLencode实现


function HTMLEncode(strHTML)






{


var div = document.createElement('div');


div.innerText = strHTML;


return div.innerHTML;


}


javascript HTMLdecode实现


function HTMLDecode(strEncodeHTML)






{


var div = document.createElement('div');


div.innerHTML = strEncodeHTML;


return div.innerText;


}


这样实现很方便简单,下面是示例代码供参考

function HTMLEncode(strHTML)
{
var div = document.createElement('div');
div.innerText = strHTML;
return div.innerHTML;
}
function HTMLDecode(strEncodeHTML)
{
var div = document.createElement('div');
div.innerHTML = strEncodeHTML;
return div.innerText;
}
function test1()
{
var strInput = prompt('test HTMLEncode(),please input decodeHTML','5');
alert(HTMLEncode(strInput));
}
function test2()
{
var strInput=prompt('test HTMLDecode(),please input encodeHTML','<div style="width:600px;"><input type="button" name="runStart" value="View" onclick="Run()" style="margin-left:2px;"><input type="button" name="runStart" value="RunScript" onclick="RunScript()" style="margin-left:10px;"><input type="button" name="reset" value="Clear" onclick="Reset()" style="margin-left:18px;"><span onclick="ExpandCollapse(this);" onmouseover="showMsg();" onmouseout="hideMsg();" msg="expand" style="font-family:webdings;font-size:18pt;cursor:pointer;">5</span></div><iframe name="ifrShow" style="margin:0px;margin:0px;width:600px;height:400px;border:1px orange solid;"></iframe><div id="divMsg" style="display:none"></div>');
alert(HTMLDecode(strInput));
}


<script type="text/javascript">


function HTMLEncode(strHTML)






{


var div = document.createElement('div');


div.innerText = strHTML;


return div.innerHTML;


}


function HTMLDecode(strEncodeHTML)






{


var div = document.createElement('div');


div.innerHTML = strEncodeHTML;


return div.innerText;


}


function test1()






{


var strInput = prompt('test HTMLEncode(),please input decodeHTML','<div style=/"width:600px;/"><input type=/"button/" name=/"runStart/" value=/"View/" onclick=/"Run()/" style=/"margin-left:2px;/" /><input type=/"button/" name=/"runStart/" value=/"RunScript/" onclick=/"RunScript()/" style=/"margin-left:10px;/" /><input type=/"button/" name=/"reset/" value=/"Clear/" onclick=/"Reset()/" style=/"margin-left:18px;/" /><span onclick=/"ExpandCollapse(this);/" onmouseover=/"showMsg();/" onmouseout=/"hideMsg();/" msg=/"expand/" style=/"font-family:webdings;font-size:18pt;cursor:pointer;/">5</span></div><iframe name=/"ifrShow/" style=/"margin:0px;margin:0px;width:600px;height:400px;border:1px orange solid;/"></iframe><div id=/"divMsg/" style=/"display:none/"></div>');


alert(HTMLEncode(strInput));


}


function test2()






{


var strInput=prompt('test HTMLDecode(),please input encodeHTML','<div style="width:600px;"><input type="button" name="runStart" value="View" onclick="Run()" style="margin-left:2px;"><input type="button" name="runStart" value="RunScript" onclick="RunScript()" style="margin-left:10px;"><input type="button" name="reset" value="Clear" onclick="Reset()" style="margin-left:18px;"><span onclick="ExpandCollapse(this);" onmouseover="showMsg();" onmouseout="hideMsg();" msg="expand" style="font-family:webdings;font-size:18pt;cursor:pointer;">5</span></div><iframe name="ifrShow" style="margin:0px;margin:0px;width:600px;height:400px;border:1px orange solid;"></iframe><div id="divMsg" style="display:none"></div>');


alert(HTMLDecode(strInput));


}


</script><button onclick="test1();">test HTMLEncode</button>


<button onclick="test2();">test HTMLDecode</button>
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