Get the current project addresses

Import the javax.servlet.http.HttpServletRequest; 

public  class the HTTPUrl {
     / ** 
     * prefix acquisition request url, acquires the current address project 
     * @explain HTTP: // localhost : 8080 / Test 
     * @param Request Object Request 
     * @return 
     * / 
    public  static String getRequestPrefix (the HttpServletRequest Request) {
         // network protocol 
        String networkProtocol = request.getScheme ();
         // network IP 
        String = IP to request.getServerName ();
         // port number 
        int port = request.getServerPort();
        // 项目发布名称
        String webApp = request.getContextPath();
        String urlPrefix = networkProtocol + "://" + ip + ":" + port + webApp;
        return urlPrefix;
    }
}