方法一:(基础版)
function getQueryString() {var sHref = window.location.href;var args = sHref.split("?");if (args[0] == sHref) {// 没有参数,直接返回空即可return "";}var arr = args[1].split("&");var obj = {};for (var i = 0; i < arr.length; i++) {var arg = arr[i].split("=");obj[arg[0]] = arg[1];}return obj;}var href = getQueryString();console.log(href["categoryId"]);
方法二:(正则版,URL存在#则不适用)
function getQueryString(name) {var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");var r = window.location.search.substr(1).match(reg);if (r != null) return unescape(r[2]);return null;}console.log(getQueryString('categoryId'))
方法三:(正则升级版)
function getQueryString(name) {// 未传参,返回空if (!name) return null;// 查询参数:先通过search取值,如果取不到就通过hash来取var after = window.location.search;after = after.substr(1) || window.location.hash.split("?")[1];// 地址栏URL没有查询参数,返回空if (!after) return null;// 如果查询参数中没有"name",返回空if (after.indexOf(name) === -1) return null;var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");// 当地址栏参数存在中文时,需要解码,不然会乱码var r = decodeURI(after).match(reg);// 如果url中"name"没有值,返回空if (!r) return null;return r[2];}console.log(getQueryString('categoryId'))