Java中获取完整的访问url

HttpServletRequest httpRequest=(HttpServletRequest)request;

String strBackUrl = "http://" + request.getServerName() //服务器地址
+ ":"
+ request.getServerPort()           //端口号
+ httpRequest.getContextPath()      //项目名称
+ httpRequest.getServletPath()      //请求页面或其他地址
+ "?" + (httpRequest.getQueryString()); //参数