url路径中特殊字符的转换,通过JS转换,并且打开

碰到的问题场景:

上传了个文件,但文件名称中含有特殊字符,例如&,#.

现在要将这个字符转换成URL认识的样子,并且不影响下载后的文件名称

 

function getContextPath() {
var pathName = document.location.pathname;
var index = pathName.substr(1).indexOf("/");
var result = pathName.substr(0,index+1);
return result;
}

function formatUrl(url){
url = url.replace(/&/g,"%26");
url = url.replace(/#/g,"%23");
//url = escape(url);
alert(url);
url = getContextPath()+"/FileDownLoadService?filename="+url;
alert(url);
var elemIF = document.createElement("iframe");
elemIF.src = url;
elemIF.style.display = "none";
document.body.appendChild(elemIF);
//alert('xx');
//window.open(url);
}

 

js替换特殊字符及取小数点处理

 

function Check(s) {2var str = s.replace(/%/g, "%25 ").replace(/\+/g,"%2B ").replace(/\s/g,"+ ");// % + \s 3

str = str.replace(/-/g, "%2D").replace(/\*/g, "%2A ").replace(/\//g, "%2F ");// - * / 4

str = str.replace(/\&/g, "%26").replace(/!/g, "%21 ").replace(/\=/g,"%3D ");// & ! = 5

str = str.replace(/\?/g, "%3F").replace(/:/g, "%3A ").replace(/\|/g,"%7C ");// ? : | 6

str = str.replace(/\,/g, "%2C").replace(/\./g, "%2E ").replace(/#/g,"%23 ");// , . # 7

return str;8 }

 

小数点特殊处理

var Digit = {}; 2/** 3* 四舍五入法截取一个小数 4*

@param float digit 要格式化的数字 5*

@param integer length 要保留的小数位数 6*

@return float 7*/

<br /> 8

Digit.round = function(digit, length) { 9

length = length ? parseInt(length) : 0;10

if (length <=0) return Math.round(digit);11

digit = Math.round(digit * Math.pow(10, length)) / Math.pow(10, length);12

return digit;13

};14 /**15* 舍去法截取一个小数16* @param float digit 要格式化的数字17* @param integer length 要保留的小数位数18* @return float19*/20

Digit.floor = function(digit, length) {21

length = length ? parseInt(length) : 0;22

if (length <= 0)return Math.floor(digit);23

digit = Math.floor(digit * Math.pow(10, length)) / Math.pow(10, length);24

return digit;25};26 /**27* 进一法截取一个小数28* @param float digit 要格式化的数字29* @param integer length 要保留的小数位数30* @return float31*/32

Digit.ceil = function(digit, length) {33

length = length ? parseInt(length) : 0;34

if (length <= 0) return Math.ceil(digit);35

digit = Math.ceil(digit * Math.pow(10, length)) / Math.pow(10, length);36

return digit;37};38 39 // 使用方法40

var num = 1.2345;41

document.write("数字：" + num +"<br />");42

document.write("四色五入法：<br />");43

document.write(num + " 保留3位小数：" + Digit.round(num,3) + "<br />");44

document.write(num + " 保留2位小数：" + Digit.round(num,2) + "<br />");45

document.write("舍去法：<br />");46

document.write(num + " 保留3位小数：" + Digit.floor(num,3) + "<br />");47

document.write(num + " 保留2位小数：" + Digit.floor(num,2) + "<br />");48

document.write("进一法：<br />");49

document.write(num + " 保留3位小数：" + Digit.ceil(num,3) + "<br />");50

document.write(num + " 保留2位小数：" + Digit.ceil(num,2) + "<br />")

 

 

连接地址编写方式

<a href="javascript: formatUrl('${att.filename}')"