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js url参数获取、设置、修改、解析代码

时间:2013-07-08 编辑:简简单单 来源:一聚教程网

获取url参数

 代码如下 复制代码

核心代码是

 

 代码如下 复制代码

function request(paras){
var url = location.href; 
var paraString = url.substring(url.indexOf("?")+1,url.length).split("&"); 
var paraObj = {} 
for (i=0; j=paraString[i]; i++){ 
paraObj[j.substring(0,j.indexOf("=")).toLowerCase()] = j.substring(j.indexOf("=")+1,j.length); 

var returnValue = paraObj[paras.toLowerCase()]; 
if(typeof(returnValue)=="undefined"){ 
return ""; 
}else{ 
return returnValue; 

}

js 设置url参数

 

 代码如下 复制代码
// 获取地址栏的参数数组
function getUrlParams() {
    var search = window.location.search;
    // 写入数据字典
    var tmparray = search.substr(1, search.length).split("&");
    var paramsArray = new Array;
    if (tmparray != null) {
        for (var i = 0; i < tmparray.length; i++) {
            var reg = /[=|^==]/;    // 用=进行拆分,但不包括==
            var set1 = tmparray[i].replace(reg, '&');
            var tmpStr2 = set1.split('&');
            var array = new Array;
            array[tmpStr2[0]] = tmpStr2[1];
            paramsArray.push(array);
        }
    }
    // 将参数数组进行返回
    return paramsArray;
}
// 根据参数名称获取参数值
function getParamValue(name) {
    var paramsArray = getUrlParams();
    if (paramsArray != null) {
        for (var i = 0; i < paramsArray.length; i++) {
            for (var j in paramsArray[i]) {
                if (j == name) {
                    return paramsArray[i][j];
                }
            }
        }
    }
    return null;
}

js修改url参数

 代码如下 复制代码


function changeURLPar(url, ref, value) {
    var str = "";
    if (url.indexOf('?') != -1)
        str = url.substr(url.indexOf('?') + 1);
    else
        return url + "?" + ref + "=" + value;
    var returnurl = "";
    var setparam = "";
    var arr;
    var modify = "0";
    if (str.indexOf('&') != -1) {
        arr = str.split('&');
        for (i in arr) {
            if (arr[i].split('=')[0] == ref) {
                setparam = value;
                modify = "1";
            }
            else {
                setparam = arr[i].split('=')[1];
            }
            returnurl = returnurl + arr[i].split('=')[0] + "=" + setparam + "&";
        }
        returnurl = returnurl.substr(0, returnurl.length - 1);
        if (modify == "0")
            if (returnurl == str)
                returnurl = returnurl + "&" + ref + "=" + value;
    }
    else {
        if (str.indexOf('=') != -1) {
            arr = str.split('=');
            if (arr[0] == ref) {
                setparam = value;
                modify = "1";
            }
            else {
                setparam = arr[1];
            }
            returnurl = arr[0] + "=" + setparam;
            if (modify == "0")
                if (returnurl == str)
                    returnurl = returnurl + "&" + ref + "=" + value;
        }
        else
            returnurl = ref + "=" + value;
    }
    return url.substr(0, url.indexOf('?')) + "?" + returnurl;
}

js解析url参数

 代码如下 复制代码


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