获取url参数
代码如下 | 复制代码 |
<script language = javascript> 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; } } var theurl=request('url'); var theimg=request('img'); document.writeln("<a href='" + theurl + "' target=_blank><img src=" + theimg + " width=750 height=450 border=0></a>"); </script> |
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 |
<script type="text/javascript"> function getQueryString(url) { if(url) { url=url.substr(url.indexOf("?")+1); //字符串截取,比我之前的split()方法效率高 } var result = {}, //创建一个对象,用于存name,和value queryString =url || location.search.substring(1), //location.search设置或返回从问号 (?) 开始的 URL(查询部分)。 re = /([^&=]+)=([^&]*)/g, //正则,具体不会用 m; while (m = re.exec(queryString)) { //exec()正则表达式的匹配,具体不会用 result[decodeURIComponent(m[1])] = decodeURIComponent(m[2]); //使用 decodeURIComponent() 对编码后的 URI 进行解码 } return result; } // demo var myParam = getQueryString("www.taobao.com?key0=a&key1=b&key2=c"); alert(myParam.key1); </script> |
时间: 2024-09-18 15:20:01