get url

gistfile1.txt

public static String getURL(HttpServletRequest curRequest) {


        if(curRequest ==null) {
            return "https://treespond.com/";
        }

        String scheme = curRequest.getScheme();       // http
        String serverName = curRequest .getServerName();     // hostname.com
        int serverPort = curRequest .getServerPort();        // 80
        String contextPath = curRequest .getContextPath();   // /mywebapp
        String servletPath = curRequest.getServletPath();   // /servlet/MyServlet
        String pathInfo = curRequest .getPathInfo();         // /a/b;c=123


        StringBuffer sb = new StringBuffer() ;

//        if(serverName !=null && serverName.equalsIgnoreCase("spingun.com")){
//            scheme="https";
//        }
        sb.append(scheme) ;
        sb.append("://") ;
        sb.append(serverName) ;

        if(serverPort!=80 && serverPort!=443) {
            sb.append(":") ;
            sb.append(serverPort) ;
        }


        sb.append(contextPath) ;


        return sb.toString();

    }