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}')"