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) {2
var 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}')"