Java判断浏览器是微信还是支付宝

     private static final String WX_AGENT = "micromessenger";
     private static final String ALI_AGENT = "alipay";

     public String getBrowser(HttpServletRequest request) {
         String agent = request.getHeader("User-Agent").toLowerCase();
         if(agent!=null) {
             if (agent.toLowerCase().contains(WX_AGENT)) {
                 return "来自微信";
             } else if (agent.toLowerCase().contains(ALI_AGENT)) {
                 return "来自支付宝";
             }
         }
         return "来自未知星球";
     }