后臺(tái)：
HttpServletRequest?httpRequest=(HttpServletRequest)request;
String?strBackUrl?=?"http://"?+?request.getServerName()?//服務(wù)器地址
+?":"
+?request.getServerPort()???????????//端口號(hào)
+?httpRequest.getContextPath()??????//項(xiàng)目名稱
+?httpRequest.getServletPath()??????//請(qǐng)求頁(yè)面或其他地址
+?"?"?+?(httpRequest.getQueryString());?//參數(shù)
前臺(tái)：
var url = window.location.href; //協(xié)議+ip+端口號(hào)
