//因為單頁面應(yīng)用的特殊性，需要手動計算 refurl
var _getRefUrl = function(absUrl, refUrl) {
    var tempAbsUrl = sessionStorage.getItem(‘a(chǎn)bsUrl’);
    var tempRefUrl = sessionStorage.getItem(‘refUrl’)
    if(tempAbsUrl === null && tempRefUrl === null) { 
        //首次進入系統(tǒng)
        //存入本地存儲
        tempAbsUrl = absUrl;
        sessionStorage.setItem(‘a(chǎn)bsUrl’, absUrl);
        tempRefUrl = refUrl;
        sessionStorage.setItem(‘refUrl’, refUrl);
    } else if(absUrl !== tempAbsUrl) { 
        //當(dāng)前頁面不等于緩存的頁面，說明已切換頁面。替換緩存中的refurl
        sessionStorage.setItem(‘refUrl’, tempAbsUrl);
        tempRefUrl = tempAbsUrl;
        sessionStorage.setItem(‘a(chǎn)bsUrl’, absUrl);
        tempAbsUrl = absUrl;
    }

    return {‘a(chǎn)bsUrl’: tempAbsUrl, ‘refUrl’: tempRefUrl};
}

調(diào)用函數(shù) _getRefUrl(location.absUrl(), window.document.referrer); 注：location.absUrl()是angularjs獲取當(dāng)前頁面的url方法；